WO2020111323A1 - Ophthalmological composite optical imaging apparatus and control method therefor - Google Patents

Abstract

The present invention relates to an ophthalmological composite optical imaging apparatus and a control method therefor and, more specifically, to an ophthalmological composite optical imaging apparatus and a control method therefor, the apparatus being configured to enable switching of an extraocular imaging lens and an intraocular imaging lens in order to selectively photograph the surface and monolayers of an extraocular part and the surface and monolayers of an intraocular part, thereby enabling an extraocular surface and tomographic images and/or an intraocular surface and tomographic images to be selectively acquired.

Description

Ophthalmic composite optical imaging device and control method

The present invention relates to an ophthalmic composite optical imaging apparatus and a control method thereof, and more specifically, the surface and a monolayer of the outer surface of the eye (hereinafter referred to as "outer eye") and the surface of the inner eye (hereinafter referred to as "inner eye"). And a composite optical for ophthalmography capable of selectively acquiring one or more of the surface and tomography images of the inner and outer layers, and the tomography image by selectively switching the lens for shooting the inner eye and the lens for shooting the inner eye to selectively shoot the tomography. It relates to an image photographing apparatus and a control method thereof.

In general, optical imaging equipment used for the diagnosis of ophthalmic diseases is classified by the type of ophthalmic imaging equipment according to the location where the image is to be obtained, for example, the inner part (fundus, etc.), the outer part (eyelids, tear glands, meibomian glands, etc.) This is and the variety is also varied. Typical ophthalmic imaging equipment includes optical coherence tomography equipment, angiography equipment, wide-angle retinal examination equipment, fundus cameras, MyBom gland imaging equipment, and slit lamp microscopes.

General optical imaging equipment uses a white light source to check the appearance of the eye (vascular bleeding, inflammation, corneal clouding, etc.) General optical imaging equipment includes a slit lamp microscope, a wide-angle retina tester, fundus camera, and eye optics. There are tomography equipment, optical coherence tomography equipment for ophthalmology, and my bomsam imaging equipment.

Fundus camera is a device that examines the condition of human/animal anterior part, retina, waterproof, lens, and vitreous body by irradiating white light, and changes in bleeding, vitiligo, tumor, bump or blood vessel in the eyeball, macular area, choroid, etc. It is an ophthalmic diagnostic device mainly used for the diagnosis of glaucoma and cataracts.

Ophthalmic optical coherence tomography equipment is an ophthalmic diagnostic device that acquires tomographic images of the anterior segment, cornea, diaphragm, lens, lens, and retina, and examines the morphological condition.

Meibomian Gland, a type of sebaceous gland in the eyelid, secretes fat components to form an oil layer on the tear layer to protect the cornea. In the case of MyBom gland dysfunction, the secretion of fat components decreases, and tears evaporate excessively, causing dry eye syndrome and causing eye discomfort. The MyBom imaging device is an ophthalmic diagnostic device that captures and displays an image corresponding to the above-described MyBom gland. In order to diagnose such a meibomian gland dysfunction, a method in which an infrared light source is irradiated to the eyeball is photographed.

As described above, since each equipment is formed with different light sources, different lenses, and a different number of lenses, the hospital needs to purchase all of the equipments, and thus there is a problem of high initial investment cost.

In addition, since the ophthalmologist and the patient have to perform or receive tests by moving the equipment according to the test items, there is a troublesome problem from the ophthalmologist and the patient's point of view.

Therefore, there is a need to develop a composite device capable of receiving at least two or more optical inspections through one device.

Accordingly, an object of the present invention is configured to be able to switch the lens for the external eye shooting and the lens for the inner eye shooting to selectively shoot the surface and the monolayer of the inner eye, and the surface and the monolayer of the inner eye, and thus the outer eye surface and tomography image and inner eye surface And to provide a composite optical imaging apparatus for ophthalmology capable of selectively obtaining one or more of the tomography image and a control method thereof.

The ophthalmic composite optical imaging apparatus of the present invention for achieving the above object includes: an inner eye shooting optical system and an outer eye shooting optical system, and under control, selects one of the inner eye shooting optical system and outer eye shooting optical system, A measuring unit which outputs one of an inner inner surface image and an outer inner surface image corresponding to the selected optical system, and outputs an inner inner tomographic optical sample signal and an outer inner tomographic optical sample signal corresponding to the selected optical system; A driving unit driving the measuring unit in correspondence with the selected optical system; Light receiving one of the inner inner tomographic optical sample signal and outer outer tomographic optical sample signal corresponding to the selected optical system, and generating and outputting one of the inner inner tomographic image and the outer inner tomographic image corresponding to the received tomographic optical sample signal Interference tomography imaging unit; And one of an inner-eye shooting mode and an outer-eye shooting mode according to a user's operation, controlling the driving unit according to the selected mode to selectively drive the selected optical system, and one of the inner-eye and outer-eye sections corresponding to the driven optical system. It characterized in that it comprises a control unit for receiving and processing the surface image and tomography image of the.

The measurement unit may include a first light supply unit supplying the first light to the optical axis; An inner portion photographing lens unit including an inner inner lens photographing lens and an outer eye lens photographing lens unit including a second light source portion and an outer inner lens photographing lens, wherein the inner inner photographing lens unit is disposed on the optical axis in the inner inner photographing mode under the control. A lens switching unit for switching the lens unit for photographing the external portion in the external eye portion photographing mode to be disposed on the optical axis; In the inner eye shooting mode, focusing on the optical axis reflecting the first light acquires and outputs the inner eye surface image, and in the inner eye shooting mode, the outer eye eye surface image of the outer eye portion irradiated with the second light is obtained and output. A surface image capturing unit; In the inner eye shooting mode, the sample light is supplied to the optical axis to which the first light is supplied, and an inner inner tomographic light sample signal that is reflected light of the supplied sample light is output, and the second light is irradiated in the outer eye mode A tomography imaging unit for supplying sample light on an axis and outputting a tomographic light sample signal of an outer part which is reflected light of the supplied sample light; It is characterized in that it comprises a common lens configured between the surface image capturing unit and the tomography imaging unit and the lens switching unit and commonly applied to the surface imaging unit and the tomography imaging unit.

The lens portion for photographing the inner portion is characterized in that it is a null lens formed into an empty space.

The surface image capturing unit, a camera; A first lens that is a focusing lens that focuses the focus of the camera on the optical axis; And a first filter configured between the camera and the first lens to filter the fluorescence image based on a specific cutoff wavelength and output it to the camera.

The light source supply unit, a light source unit for irradiating the first light; A second filter that filters the first light; A polarizer polarizing the filtered first light; A second lens condensing the polarized first light; And an optical splitter for dividing and reflecting the first light collected by the second lens in a direction corresponding to the optical axis.

The tomography imaging unit comprises: a collimator that outputs the input sample light as parallel light and receives the reflected internal return tomography light sample signal and outputs it to the optical interference tomography unit; A 2D scanner for determining and outputting the parallel light traveling direction, and receiving the inner inner tomographic light sample signal and outputting it to the collimator; A third lens for condensing and outputting sample light, which is the direction-adjusted parallel light, and a sample signal for inner tomographic light in the 2D scanner; And a DF that reflects the parallel light corresponding to the optical axis and reflects the internal inner tomography light sample signal that is reflected and returns to the retina and outputs to the 2D scanner through the third lens.

Optical coherence tomography unit; A light source unit that irradiates third light; A first optical coupler for dividing the third light and outputting the first divided light and the second divided light; A first optical circulator that provides the first divided light to the optical tomographic reference light generator and receives and outputs the optical tomographic reference light for the first divided light; An optical tomographic reference light generator configured to receive the first divided light from a first optical circulator and generate the optical tomographic reference light by the first divided light and output it to the first optical circulator; A second optical circulator that provides the second divided light as the sample light to the measurement unit and receives and outputs one of an inner inner tomographic light sample signal and an outer inner tomographic light sample signal corresponding to the sample light; A second optical coupler receiving the optical tomographic reference light from the first optical circulator and receiving and combining any one of an inner inner tomographic optical sample signal and an outer inner tomographic optical sample signal from the second optical circulator; A detection unit which detects and outputs an interference fringe signal from the combined signal of the optical tomographic light, the inner inner tomographic optical sample signal, and the outer inner tomographic optical sample signal through the second optical coupler; And an imaging unit for imaging and outputting the interference fringe signal.

The external lens photographing lens is characterized in that it is configured at a position corresponding to the distance from the common lens to the lens of the internal eye when photographing in the internal lens photographing mode.

The control unit is characterized in that it performs dispersion compensation (Dispersion Compensation) and polarization control (Polarization Control).

The control method of the ophthalmic composite optical imaging apparatus of the present invention for achieving the above object is: a mode change monitoring process in which the control unit monitors whether a mode selection event occurs; A mode determining process for determining whether the control unit is an inner eye shooting mode or an outer eye shooting mode; An inner eye shooting preparation process of setting the inner eye shooting mode and controlling the lens switching portion to switch to the inner eye shooting lens portion when the controller is an inner eye shooting mode; If the control unit is an external-eye shooting mode, an external-eye shooting preparation process of setting an external-eye shooting mode and controlling the lens switching unit to switch to the external-eye shooting lens unit; And acquiring a surface image and a tomographic image acquiring and outputting any one of an inner inner surface image and a tomographic image and a outer inner surface image and a tomographic image by performing any one of inner mode imaging and outer eye imaging according to the mode. It is characterized by.

The inner-eye shooting-preparing process includes: a lens switching step for inner-eye shooting, wherein the control unit controls the lens switching unit to switch the inner-eye shooting lens to be placed on the optical axis; A first light supply step in which the control unit controls the first light supply unit to supply the first light to the optical axis; A camera driving step in which the controller drives the camera; A third light source unit driving step in which the control unit drives the third light source unit; And a scanner driving step in which the control unit drives the 2D scanner.

The external eye part photographing preparation process is such that the control part controls the lens switching part to switch the lens part for external eye part photographing including the lens for external eye part photographing and a plurality of infrared light source parts formed along the outer circumference of the lens for external eye part photographing to be placed on the optical axis. Lens switching step for regards shooting; A step of driving a light source for photographing the external eye portion, wherein the control unit drives the infrared light source unit to irradiate infrared rays; A first light supply step in which the control unit controls the first light supply unit to supply the first light to the optical axis; A camera driving step in which the controller drives the camera; A third light source unit driving step in which the control unit drives the third light source unit; And a scanner driving step in which the control unit drives the 2D scanner.

The control unit may further include a distortion elimination process that performs dispersion compensation and polarization control.

The present invention includes a lens unit for photographing an inner portion, which includes a lens for photographing an inner portion, which is a null lens that is an empty space without a lens and a light source, and at least one lens portion for photographing an outer portion, including a lens for photographing an outer portion and a light source, A composite optical image capable of performing inspection on both the inner and outer parts by selectively configuring one of the optical system for the inner part and the optical system for the inner part by being configured to switch when the lens part for shooting the inner part and the lens part for shooting the outer part are rotated. It has an effect of providing a photographing apparatus.

In addition, the present invention minimizes the inconvenience of moving the equipment for external eye examination and internal eye examination by a patient, that is, a subject and a doctor, by providing a composite optical imaging apparatus capable of performing external eye examination and internal eye examination on one device It is possible to perform both inner and outer eye examinations in one device, which has the effect of shortening the inspection time.

In addition, the present invention has the effect of reducing the cost of equipment purchase because the hospital only needs to have one composite optical imaging device instead of purchasing the optical imaging device for the inner eye and the optical imaging device for the outer eye.

1 is a view showing the configuration of an ophthalmic composite optical imaging apparatus according to the present invention.

2 is a block diagram showing an electronic block configuration of an ophthalmic composite optical imaging apparatus according to the present invention.

3 is a view showing a detailed configuration of a measuring unit in which the optical system for the external part of the ophthalmic composite optical imaging apparatus according to an embodiment of the present invention is configured.

4 is a view showing a detailed configuration of a measuring unit in which an optical system for an inner eye of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention is configured.

5 is a view showing the detailed configuration of an optical coherence tomography unit of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention.

6 is a flow chart showing a control method of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention.

Hereinafter, the configuration and operation of the ophthalmic composite optical imaging apparatus of the present invention will be described with reference to the accompanying drawings, and a control method of the apparatus will be described.

1 is a view showing the configuration of a composite optical imaging apparatus for ophthalmology according to the present invention, and FIG. 2 is a diagram showing an electronic block configuration diagram of a composite optical imaging apparatus for ophthalmology according to the present invention. It will be described below with reference to FIGS. 1 and 2.

The ophthalmic composite optical imaging apparatus 20 according to the present invention includes a measuring unit 100, a driving unit 200, an optical coherence tomography unit 300, a control unit 400, an operation unit 500, and a display unit 600 It includes.

The composite optical imaging apparatus for ophthalmology is composed of a composite optical imaging apparatus support unit 10 including a base plate 11 and a head support 12 as shown in FIG. 1, and a subject supported by the head support 12 Obtain surface images and tomography images of the outer and inner parts of the eye. The composite optical image capturing apparatus support 10 may be configured in various forms, and a detailed description thereof will be omitted since it can be easily performed by those skilled in the art.

The measurement unit 100 includes a lens unit for photographing an external portion for forming an optical system for photographing an external portion, and a lens portion for photographing an inner portion for configuring an optical system for photographing an inner portion. Including the lens switching unit 110 disposed on the axis, both the outer-eye shooting optical system and the inner-eye shooting optical system can be selectively configured. Under the control of the controller 400, the inner-eye shooting optical system and the outer-eye shooting optical system can be selectively selected. Configured, and outputs one of an inner inner surface image and an outer inner surface image corresponding to the selected optical system, and outputs an inner inner tomographic optical sample signal and an outer inner tomographic optical sample signal for generating a tomographic image corresponding to the selected optical system. The detailed configuration of the measurement unit 100 will be described in detail with reference to FIGS. 3 and 4 below.

The inner portion may be a fundus, and the outer portion may be a cornea, a meibomian gland, and an eyelid.

The driving unit 200 is controlled by the control unit 400 to selectively drive the internal components of the measuring unit 100 in response to the selected optical system.

The driving unit 200 is a motor driver (not shown) for controlling the switching of the lens switching unit 110, a camera driving drive (not shown) for driving the camera 121, a first light supply unit 130, a second And a light source driving driver (not shown) for driving the light source unit 114 and the third light source unit 310, a 2D scanner controller (not shown) for adjusting the reflection direction of the sample light of the 2D scanner 142, and the like.

The optical coherence tomography unit 300 receives any one of the inner inner tomographic optical sample signal and the outer inner tomographic optical sample signal corresponding to the optical system selected from the measurement unit 100, and corresponds to the received tomographic optical sample signal. It generates and outputs one of an inner tomographic image and an outer inner tomographic image. The detailed configuration and operation of the optical coherence tomography unit 300 will be described in detail with reference to FIG. 5 below.

The operation unit 500 includes a variety of operation means for operating a lens focus and a mode selection means that allows an ophthalmologist and an ophthalmologist to select an inner eye shooting mode and an outer eye shooting mode according to the present invention. The signal (command) generated through is output to the control unit 400. The operation means may include at least one of a button, a joystick, a touch pad, and a mouse.

The display 600 displays the operation information according to the operation of the ophthalmic composite optical imaging device under the control of the control unit 400, and the mode information according to the embodiment of the present invention, the inner inner surface surface image according to the mode And at least one of a tomography image, an outer eye surface image, and a tomography image.

The control unit 400 includes a mode setting unit 410, a lens switching control unit 420, an image signal processing unit 430, and a storage unit 440 to control the overall operation of the ophthalmic composite optical imaging apparatus according to the present invention do. Particularly, the control unit 400 focuses on the inner and outer eye lens switching, selective filter switching control for obtaining a fluorescent contrast agent and a white light source image, controlling the 2D scanner 142 of the optical coherence tomography unit 300, and focusing on the inner and outer eye parts. Perform stage control, dispersion compensation control, and polarization control to match.

Specifically, the mode setting unit 410 determines whether the mode selection signal is an inner-eye shooting mode or an outer-eye shooting mode when a mode selection event occurs by inputting a mode selection signal from the operation unit 500, and the mode is determined. Correspondingly, the driving unit 200 is controlled to selectively drive the internal components of the measuring unit 100.

When the mode is set in the mode setting unit 410, the lens switching control unit 420 controls the lens switching unit 110 in correspondence to the set mode, and the corresponding lens unit of the lens unit for inner lens photographing and the lens unit for external eye lens photographing is optical axis. Posted in.

The image signal processing unit 430 receives the inner inner surface image and the outer inner surface image directly input from the measuring unit 100, processes the image, stores the image in the storage unit 440, displays it on the display unit 600, and performs optical interference. After receiving the inner inner tomographic image and the outer inner tomographic image input from the tomographic image unit 300, the image is stored in the storage unit 440 and then displayed on the display unit 600.

The storage unit 440 includes a program area for storing a control program for controlling the overall operation of the ophthalmic composite optical imaging apparatus according to the present invention, a temporary area for temporarily storing data generated during the control program, and the operation unit 500 ) And a data area for storing the information and the images.

In addition, the control unit 400, the optical coherence tomography unit 300 and the tomography imaging unit 140 when taking a tomography image according to the inner-eye shooting mode and the outer-eye shooting mode of the sample end light path and the reference end light path Control the difference. The sample stage optical path is a light source unit 310, a first light distribution unit 320, a second light circulator 340, a tomography imaging unit 140 of the measurement unit 100, a common lens 150 and an eyeball, The reference end optical path is the light source unit 310, the first light distribution unit 320, the first light circulator 330, and the light end reference light generation unit 350.

When photographing in the inner inner photographing mode, the distance of the inner lens, that is, the lens of the fundus, from the common lens 150 is preferably configured to match the distance from the common lens 150 to the outer lens photographing lens 113 when photographing the outer eye.

In addition, in order to eliminate the effective measurement and distortion of the optical interference signal when taking the inner and outer eyeballs, the control unit 400 must perform dispersion compensation and polarization control.

3 is a view showing a detailed configuration of a measuring unit in which an optical system for an external eye part of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention is formed, and FIG. 4 is a composite optical image for ophthalmology according to an embodiment of the present invention. It is a diagram showing a detailed configuration of a measuring unit in which an optical system for an inner portion of the imaging device is configured. 3 and 4, reference numeral 101 in the drawings denotes an optical axis.

The measurement unit 100 includes a lens switching unit 110, a surface image capturing unit 120, a first light supply unit 130, a tomography imaging unit 140, and a common lens 150.

The lens switching unit 110 includes an inner portion photographing lens unit 111 including a lens for photographing an inner eye portion, and a second light source portion 114 and a lens portion 112 for photographing an outer eye portion including the lens 113 for photographing an outer eye portion. Under the control, the lens unit 111 for photographing the inner eye is disposed on the optical axis 101 in the inner eye shooting mode as shown in FIG. 3, and in the outer eye shooting mode, the lens portion 112 for shooting the outer eye as shown in FIG. It is arranged by switching to the optical axis 101.

The lens for the inner portion photographing applied to the lens portion 111 for photographing the inner portion of the lens switching unit 110 may be a lens for transmitting a flat plate that outputs incident light as it is, or an empty space, that is, a lens formed of air ( Or it may be a null lens. That is, the lens unit 111 for photographing the inner portion may be formed as an empty space.

The lens portion 112 for photographing the external eye portion includes a second light source portion including a plurality of light sources formed along the outer periphery of the lens 113 for external eye photographing and the lens 113 for photographing the external eye portion as shown in an enlarged view of FIGS. 3 and 4. 114). It is preferable that the light irradiated from the light source of the second light source unit is infrared light.

In the above drawings and description, the case where the lens portion 111 for photographing the inner portion and the lens portion 112 for photographing the outer portion are configured in a switching manner, but the lens portion 112 for photographing the outer portion is a structure (not shown) on the optical axis 101. ) May be applied to a detachable manner.

The first light supply unit 130 supplies the first light to the optical axis 101. The first light may be white light or infrared light. The first light supply unit 130 may be selectively driven under the control of the control unit 400.

The first light supply unit 130 is a light source unit 131 for irradiating the first light, a second lens 132 for condensing the polarized first light, and a first condensed by the second lens 132 Including a light splitter 133 having dichroism and polarization characteristics that divide and reflect light by dividing it in a direction corresponding to the optical axis 101, the first filter 134 selectively filtering the first light, the filtering Further comprising a polarizer 135 for polarizing the first light to correspond to the polarization characteristics of the light splitter (133). The saturation effect reflected from the surface of the eye is removed by providing the light splitter 133, the second filter 134, and the polarizer 135.

The surface image photographing unit 120 focuses on the optical axis reflecting the first light in the inner inner photographing mode to obtain and output a inner inner surface image, and in the outer inner photographing mode, the second light is irradiated to the outer inner portion Acquires the surface image of the external eye part and outputs it to the control unit 400.

The surface image capturing unit 120 includes a camera 121, a first lens 123 which is a focusing lens focusing the focus of the camera 121 on the optical axis 101, and the camera 121 and the first lens A first filter 122 configured between 123 and filtering the fluorescent image based on a specific cutoff wavelength is output to the camera 121. The first filter 122 may be selectively configured. The first filter 122 may be selectively replaced with a filter having different characteristics according to types of images such as a fluorescent contrast agent and a white light image.

The tomography imaging unit 140 supplies sample light to the optical axis to which the first light is supplied, and outputs an inner tomography tomography light sample signal, which is reflected light of the supplied sample light, to the control unit 400 in the inside-inside shooting mode. , In the external eye mode, the sample light is supplied to the optical axis 101 to which the second light is irradiated, and the tomographic light sample signal, which is reflected light of the supplied sample light, is output to the controller 400.

The tomography imaging unit 140 is a collimator 141 that outputs the input sample light as parallel light and receives the reflected inner return tomography light sample signal and outputs it to the optical coherence tomography unit 300. The 2D scanner 142, which receives and outputs the inner inner tomographic light sample signal to the collimator 141, determines the parallel light traveling direction and outputs the sample signal, and the sample light which is the parallel light direction-directed by the 2D scanner 142. The third lens 143 for condensing and outputting the tomographic optical sample signal, and the third lens 143 by reflecting the parallel light corresponding to the optical axis and reflecting the internal inner tomographic optical sample signal that is reflected back to the retina ), and a dichroic mirror (DF) 145 output to the 2D scanner 142.

The common lens 150 is configured between the surface image capturing unit 120 and the tomography imaging unit 140 and the lens switching unit 110, and the surface image imaging unit 120 and the tomography imaging unit 140 A condensing lens that condenses and outputs the corresponding light according to

5 is a view showing the detailed configuration of an optical coherence tomography unit of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention.

5, the optical coherence tomography unit 300 includes a light source unit 310, a first light combiner 320, a first light circulator 330, a second light circulator 340, and a light tomography reference light generator 350 ), a second optical coupler 360, a detection unit 370 and an imaging unit 370.

The light source unit 310 irradiates the third light. It is preferable that the third light is a near-infrared light source having low interference.

The first light distribution unit 320 divides the third light and outputs the first light and the second light.

The first optical circulator 330 provides the first divided light to the optical tomographic reference light generator 350 and receives and outputs the optical tomographic reference light for the first divided light from the optical tomographic reference light generator 350. .

The optical tomographic reference light generating unit 350 receives the first divided light from the first optical cycler 330 and generates optical single-layer reference light by the first divided light, and outputs it to the first optical cycler 330.

The second optical circulator 340 provides the second divided light as the sample light to the tomography imaging unit 140 of the measurement unit 100, and an inner inner tomographic light sample signal and an outer eye unit corresponding to the sample light. Any one of the tomographic optical sample signals is received and output to the second optical splitter 360.

The second optical coupler 360 receives the optical tomographic reference light from the first optical circulator 330 and receives and combines one of the inner inner tomographic optical sample signal and the outer inner tomographic optical sample signal from the second optical circulator 340. And output.

The detector 370 detects and outputs an interference fringe signal from a signal in which any one of an optical tomographic light source, an inner inner tomographic optical sample signal, and an outer inner tomographic optical sample signal is combined through the second optical coupler 360.

The imaging unit 380 images the interference fringe signal according to a mode and outputs either an inner inner tomographic image or inner inner tomographic image.

6 is a flow chart showing a control method of an ophthalmic composite optical imaging apparatus according to an embodiment of the present invention.

Referring to FIG. 6, the control unit 400 checks whether a mode selection event is generated through the operation unit 500 in operation S111. The mode selection event may be generated when an initial mode is selected or changed to another mode.

When a mode selection event occurs, the control unit 400 determines whether the selected or changed mode is an inner eye shooting mode or an outer eye shooting mode (S113).

In the inner-eye shooting mode, the control unit 400 sets the inner-eye shooting mode (S115), and then controls the lens switching unit 110 to switch the inner-eye shooting lens unit 111 to be placed on the optical axis. The preparation process is performed (S117).

In the preparation process for photographing the inner portion, the control unit 400 controls the lens switching unit 110 through the driving unit 200 to switch the inner portion photographing lens unit 111 to be placed on the optical axis 101. Lens switching step for shooting, the control unit controls the first light supply unit 130 through the driving unit 200, the first light supply step of supplying the first light to the optical axis 101, the control unit 400 is the driving unit ( A camera driving step of driving the camera 121 through 200, a third light source driving step of the controller 400 driving the third light source unit 310 through the driving unit 200, and the control unit 400 driving unit ( 200) through the scanner driving step of driving the 2D scanner 142.

On the other hand, in the case of the external-eye shooting mode, the control unit 400 sets the external-eye shooting mode (S119), and controls the lens switching unit 110 to switch to the lens unit 114 for external-eye shooting (S121), and performs the external-eye shooting preparation process. .

In the preparation of the external eye portion photographing process, the control unit 400 controls the lens switching unit 110 through the driving unit 200 to form the external lens photographing lens 113 and a plurality of infrared light source units formed along the outer circumference of the external eye photographing lens. Lens switching step for photographing the inner portion, so that the lens portion 112 for photographing the outer portion including 114 is placed on the optical axis 101, the control unit 400 through the driving unit 200, the infrared light source unit 114 Driving the light source for photographing the external part that irradiates infrared rays by driving the first light that supplies the first light to the optical axis 101 by controlling the first light supply unit 130 through the driving unit 200 Supply step, a camera driving step in which the control unit 400 drives the camera 121 through the driving unit 200, a third light source unit in which the control unit 400 drives the third light source unit 310 through the driving unit 200 A driving step, and a scanner driving step in which the control unit 200 drives the 2D scanner 142 through the driving unit 200.

As described above, when the setting of the shooting mode according to the mode is completed, the control unit 400 performs surface imaging and tomography imaging of one of the inner and outer eyes of the corresponding mode (S123), and the inner and outer eyes of the mode Acquiring any one of the surface image and the tomography image (S125).

On the other hand, the present invention is not limited to the typical preferred embodiments described above, but can be carried out by improving, changing, replacing or adding in various ways without departing from the gist of the present invention. Anyone who has a will easily understand. If the implementation by such improvement, modification, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

[Description of codes]

10: photographing device support portion 11: base plate

12: head support 20: ophthalmic composite optical imaging device

100: measuring unit 101: optical axis

110: lens switching unit 111: inner lens portion for photographing

112: lens section for shooting the external eye 113: lens for shooting the outer eye

114: infrared light source unit 120: surface image capture unit

121: camera 122: first filter

123: first lens 130: first light supply

131: light source unit 132: second lens

133: light splitter 134: second filter

135: polarizer 140: tomography imaging unit

141: Collimator 142: 2D scanner

143: third lens 145: DF

150: common lens 200: drive unit

300: optical coherence tomography unit 310: light source unit

320: first optical coupler 330: first optical circulator

340: second optical circulator 350: optical tomographic reference light generator

360: second light coupler 370: detection unit

380: imaging unit 400: control unit

410: mode setting unit 420: lens switching control unit

430: image signal processing unit 440: storage unit

500: operation panel 600: display unit

Claims (13)

It includes an inner eye shooting optical system and an outer eye shooting optical system, and under control, selects one of the inner eye shooting optical system and outer eye shooting optical system, outputs one of the inner inner surface image and the outer eye surface image corresponding to the selected optical system, and selects A measurement unit which outputs an inner inner tomographic optical sample signal and an outer inner tomographic optical sample signal corresponding to the optical system; A driving unit driving the measuring unit in correspondence with the selected optical system; Light receiving one of the inner inner tomographic optical sample signal and outer outer tomographic optical sample signal corresponding to the selected optical system, and generating and outputting one of the inner inner tomographic image and the outer inner tomographic image corresponding to the received tomographic optical sample signal Interference tomography imaging unit; And Depending on the user's operation, one of the inner-eye shooting mode and the outer-eye shooting mode is selected, the driving unit is controlled according to the selected mode to selectively drive the selected optical system, and one of the inner and outer eyes corresponding to the driven optical system is selected. And a control unit for receiving and processing a surface image and a tomography image. According to claim 1, The measuring unit, A first light supply unit supplying the first light to the optical axis; And an inner lens photographing lens unit including an inner inner photographing lens, and an inner eye photographing lens unit including a second light source unit and an outer inner photographing lens, and under the control, the inner inner photographing lens unit is disposed on the optical axis in the inner inner photographing mode. A lens switching unit for switching the lens unit for photographing the external portion in the external eye portion photographing mode to be disposed on the optical axis; In the inner eye shooting mode, focusing on the optical axis reflecting the first light acquires and outputs the inner eye surface image, and in the inner eye shooting mode, the outer eye eye surface image of the outer eye portion irradiated with the second light is obtained and output. A surface image capturing unit; In the inner eye shooting mode, the sample light is supplied to the optical axis to which the first light is supplied, and an inner inner tomographic light sample signal that is reflected light of the supplied sample light is output, and the second light is irradiated in the outer eye mode A tomography imaging unit for supplying sample light on an axis and outputting a tomographic light sample signal of an outer part which is reflected light of the supplied sample light; And a common lens configured between the surface image capturing unit and the tomography imaging unit and the lens switching unit and commonly applied to the surface imaging unit and the tomography imaging unit. . According to claim 2, The lens unit for intraocular imaging is an ophthalmic composite optical imaging apparatus, characterized in that it is a null lens formed into an empty space. According to claim 2, The surface imaging unit, camera; A first lens that is a focusing lens that focuses the focus of the camera on the optical axis; And And a first filter configured between the camera and the first lens to filter a fluorescent image based on a specific cutoff wavelength and output it to the camera. According to claim 2, The light source supply unit, A light source unit that irradiates the first light; A second filter that filters the first light; A polarizer polarizing the filtered first light; A second lens condensing the polarized first light; And And an optical splitter for dividing and reflecting the first light collected by the second lens in a direction corresponding to the optical axis. According to claim 2, The tomography imaging unit, A collimator that outputs the input sample light as parallel light and receives the reflected inner return tomographic light sample signal and outputs it to the optical interference tomography unit; A 2D scanner for determining and outputting the parallel light traveling direction, and receiving the inner inner tomographic light sample signal and outputting it to the collimator; A third lens for condensing and outputting sample light, which is the direction-adjusted parallel light, and a sample signal for inner tomographic light in the 2D scanner; And And a DF that reflects the parallel light corresponding to the optical axis and reflects the signal of the inner-inner tomographic light sample that is reflected back to the retina and outputs it to the 2D scanner through the third lens. Video recording device. According to claim 1, Optical coherence tomography unit; A light source unit that irradiates third light; A first optical coupler for dividing the third light and outputting the first divided light and the second divided light; A first optical circulator that provides the first divided light to the optical tomographic reference light generator and receives and outputs the optical tomographic reference light for the first divided light; An optical tomographic reference light generator configured to receive the first divided light from a first optical circulator and generate the optical tomographic reference light by the first divided light and output it to the first optical circulator; A second optical circulator that provides the second divided light as the sample light to the measurement unit and receives and outputs one of an inner inner tomographic light sample signal and an outer inner tomographic light sample signal corresponding to the sample light; A second optical coupler receiving the optical tomographic reference light from the first optical circulator and receiving and combining any one of an inner inner tomographic optical sample signal and an outer inner tomographic optical sample signal from the second optical circulator; A detection unit which detects and outputs an interference fringe signal from the combined signal of the optical tomographic light, the inner inner tomographic optical sample signal, and the outer inner tomographic optical sample signal through the second optical coupler; And And an imaging unit for imaging and outputting the interference fringe signal. According to claim 2, The ophthalmic imaging lens is an ophthalmic composite optical imaging device, characterized in that it is configured at a position corresponding to the distance from the common lens to the lens of the inner eye when imaging in the inner eye shooting mode. According to claim 1, The control unit, An optical ophthalmic composite optical imaging apparatus, characterized by performing dispersion compensation and polarization control. A mode change monitoring process in which the control unit monitors whether a mode selection event occurs; A mode determining process for determining whether the control unit is an inner eye shooting mode or an outer eye shooting mode; An inner eye shooting preparation process of setting the inner eye shooting mode and controlling the lens switching portion to switch to the inner eye shooting lens portion when the controller is an inner eye shooting mode; If the control unit is an external-eye shooting mode, an external-eye shooting preparation process of setting an external-eye shooting mode and controlling the lens switching unit to switch to the external-eye shooting lens unit; And acquiring and outputting a surface image and a tomography image by acquiring and outputting any one of an inner-surface image and a tomography image and a tomography surface image and a tomography image by performing any one of the inner-interior imaging and the external-interior imaging according to the above mode. Ophthalmic compound optical imaging method. The method of claim 10, The preparation process for photographing the inner part, A lens switching step for photographing the inner eye part, wherein the control part controls the lens switching part to switch the inner eye shooting lens to be placed on the optical axis; A first light supply step in which the control unit controls the first light supply unit to supply the first light to the optical axis; A camera driving step in which the controller drives the camera; A third light source unit driving step in which the control unit drives the third light source unit; And And a control unit driving the 2D scanner. The method of claim 10, The external eye shooting preparation process, A lens switching step for photographing an inner eye part, wherein the control part controls the lens switching part to switch the lens part for photographing the outer part including the plurality of infrared light source parts formed along the outer circumference of the lens for photographing the outer part and the lens for photographing the outer part; A step of driving a light source for photographing the external eye portion, wherein the control unit drives the infrared light source unit to irradiate infrared rays; A first light supply step in which the control unit controls the first light supply unit to supply the first light to the optical axis; A camera driving step in which the controller drives the camera; A third light source unit driving step in which the control unit drives the third light source unit; And And a control unit driving the 2D scanner. The method of claim 10, The control method of the composite optical imaging apparatus for ophthalmology, characterized in that it further comprises a distortion removal process for performing the dispersion compensation (Dispersion Compensation) and polarization control (Polarization Control).

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