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WO2025110025A1 - Dispositif d'affichage d'image et dispositif de type lentille de contact - Google Patents

Dispositif d'affichage d'image et dispositif de type lentille de contact Download PDF

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Publication number
WO2025110025A1
WO2025110025A1 PCT/JP2024/039761 JP2024039761W WO2025110025A1 WO 2025110025 A1 WO2025110025 A1 WO 2025110025A1 JP 2024039761 W JP2024039761 W JP 2024039761W WO 2025110025 A1 WO2025110025 A1 WO 2025110025A1
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WIPO (PCT)
Prior art keywords
contact lens
light
lens type
light projection
projection device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2024/039761
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English (en)
Japanese (ja)
Inventor
武史 佐野
貴晴 鈴木
建吾 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Semiconductor Solutions Corp
Original Assignee
Sony Semiconductor Solutions Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Semiconductor Solutions Corp filed Critical Sony Semiconductor Solutions Corp
Publication of WO2025110025A1 publication Critical patent/WO2025110025A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof

Definitions

  • the technology disclosed herein (hereinafter also referred to as "the technology”) relates to an image display device and a contact lens type device.
  • Patent Document 1 discloses technology relating to "a beam scanning display device that displays an image by scanning a beam onto a user's retina, the beam scanning display device comprising a housing that houses a light source that outputs a beam that renders each pixel that constitutes an image and a scanning unit that scans the beam from the light source in a two-dimensional direction, and a contact lens that is separate from the housing and has a deflection unit that deflects the beam scanned by the scanning unit in a direction toward the retina of the eye of the user wearing the housing.”
  • the housing that houses the scanning unit is fixed to the observer's head, so there is no risk of the positional relationship between the housing and the pupil changing significantly.
  • the main objective of this technology is to provide an image display device that can display images without being affected by the presence or absence of changes in the positional relationship between the light projection device and the pupil, and the degree of such changes.
  • This technology is a light projection device that projects light toward an observer; a contact lens type device separate from the light projection device for projecting light from the light projection device onto the observer's pupil;
  • the present invention provides an image display device, wherein the light projection device has an angle adjustment unit that adjusts the emission angle of light projected onto the contact lens type device depending on the positional relationship between the light projection device and the contact lens type device or the pupil, or both.
  • the light projection device may be fixed to the observer's hand.
  • the image display device may display a virtual image around the light projection device when the light projection device is held in front of the observer's eye and light from the light projection device is projected onto the observer's pupil.
  • the image display device may further include a detection unit that detects a positional relationship between the light projection device and the contact lens type device or the pupil, or both of the light projection device and the contact lens type device, and the detection unit may detect the positional relationship by a triangulation method or a ToF method.
  • the contact lens type device includes a detection part, The detection section may detect a position of the detection target section.
  • the image display device may further include a focus adjustment unit that adjusts a focus based on a distance between the light projection device and the contact lens type device.
  • the image display device may further include an image correction section that corrects a virtual image to be displayed based on a positional relationship between the light projection device and either the contact lens type device or the pupil or both.
  • the image display device may form a focal point between the centre of the eyeball and the crystalline lens.
  • the image display device may further include a scanning unit that scans light from a light source.
  • the light projected onto the contact lens type device may be laser light.
  • a deflection portion is formed in the contact lens type device, The deflection portion may deflect light from the light projection device towards a pupil of the observer.
  • the deflection section may be a holographic optical element.
  • the contact lens type device may have a self-alignment function.
  • a contact lens type device that is placed on an eyeball of an observer and projects light from a light projection device onto a pupil of the observer
  • a contact lens type device in which the light projection device, which is separate from the contact lens type device, has an angle adjustment section that adjusts the emission angle of light projected onto the contact lens type device depending on the positional relationship between the light projection device and the contact lens type device, the pupil, or both.
  • 1 is a schematic diagram illustrating a configuration example of an image display device 10 according to an embodiment of the present technology.
  • 1 is a block diagram showing an example of a configuration of an image display device 10 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of a contact lens type device 2 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of a contact lens type device 2 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of a contact lens type device 2 according to an embodiment of the present technology.
  • 1 is a block diagram showing an example of a configuration of a light projection device 1 according to an embodiment of the present technology.
  • 1 is a block diagram showing an example of a configuration of a light projection device 1 according to an embodiment of the present technology.
  • top means the upper direction or upper side in the drawing
  • bottom means the lower direction or lower side in the drawing
  • left means the left direction or left side in the drawing
  • right means the right direction or right side in the drawing.
  • the same or equivalent elements or members are given the same reference numerals, and duplicate explanations are omitted.
  • the present technology provides an image display device comprising: a light projection device that projects light toward an observer; and a contact lens type device that is separate from the light projection device and projects light from the light projection device onto the observer's pupil, wherein the light projection device has an angle adjustment unit that adjusts the emission angle of light projected onto the contact lens type device depending on the positional relationship between the light projection device and either the contact lens type device or the pupil, or both.
  • FIG. 1 is a schematic diagram showing an example of the configuration of an image display device 10 according to an embodiment of the present technology.
  • Fig. 2 is a block diagram showing an example of the configuration of an image display device 10 according to an embodiment of the present technology.
  • the image display device 10 includes an optical projection device 1 and a contact lens type device 2.
  • the optical projection device 1 and the contact lens type device 2 are configured to be physically and electrically separated from each other.
  • the light projection device 1 projects light towards the observer.
  • the contact lens type device 2 projects the light from the light projection device 1 onto the observer's pupil 52.
  • the photoreceptor cells inside the retina 53 detect the light and convert it into a nerve signal.
  • This nerve signal is sent to the brain via the optic nerve, and the brain interprets the signal to enable us to recognize the scenery and objects we are looking at. In this way, the observer can observe the virtual image 3 generated by AR (Augmented Reality) technology.
  • the eyepiece device is a contact lens-type device rather than a glasses-type device. Glasses-type devices need to be adjusted to suit the shape of each individual's face, and the position of the device will shift over time. On the other hand, contact lens-type devices do not require this, and can provide a comfortable fit and sensation for everyone. As long as the shape of the contact lens-type device matches the shape of the eyeball, the position of the device will not shift over time.
  • contact lens-type devices are placed directly on the eyeball, so they can project light more directly onto the pupil.
  • glasses-type devices there is a possibility that the frame and lens thickness may interfere, limiting the light transmission.
  • the eyepiece device is, for example, a glasses-type device
  • the position between the optical system of the glasses-type device and the pupil is far away, making it easy for the image to be lost.
  • the position between the optical system of a contact lens-type device and the pupil is extremely close, making it difficult for the image to be lost.
  • the light projection device 1 is not attached to the observer's head, but can be fixed, for example, to the observer's hand 4.
  • Devices worn on the head can block the field of vision, making it difficult to grasp the surrounding situation.
  • devices secured to the hand do not block the field of vision, allowing users to carry out tasks and movements while being aware of their surroundings.
  • head-worn devices cover the entire head, many users are concerned about their weight and wearing comfort.
  • devices secured to the hand are lighter in weight and feel less like a second-hand item compared to devices worn on the head, so they are less tiring to use for long periods of time.
  • devices fixed to the hand can display images in accordance with the task or action, improving the efficiency of the task or action.
  • the virtual image is always displayed, and it is time-consuming to hide the virtual image.
  • a device fixed to the hand it is easy to display or hide the virtual image by simply adjusting the position of the hand.
  • the observer's line of sight is restricted because the observer must look at the light projection device 1 like a wristwatch. This makes it easier to detect the position of the contact lens type device 2 and the pupil.
  • the light projection device 1 fixed to the hand does not have to be in the form of a wristwatch worn on the hand, but may be in the form of a mobile terminal held in the hand, for example. Fixing includes, for example, wearing and holding.
  • the light projection device 1 may be in a form that is not fixed to the hand.
  • the light projection device 1 may be installed in a specific location, such as a station, airport, or commercial facility, and used as digital signage.
  • the light projection device 1 placed on a table in a room may display subtitles as a virtual image synchronized with the television image.
  • the operation of the image display device 10 will now be described.
  • the light projection device 1 fixed to the hand 4 is held up in front of the observer's eyes, and light from the light projection device 1 is projected onto the observer's pupils.
  • the image display device 10 then displays a virtual image 3 around the light projection device 1.
  • the virtual image 3 is displayed above the light projection device 1 as seen by the observer. Displaying the virtual image 3 at this position makes it easier to align the virtual image 3 with the real world, and enables the functionality of the light projection device 1 to be expanded. For example, it becomes possible to enlarge the screen 17 mounted on the light projection device 1 and display it as the virtual image 3, or to display navigation linked to the GPS function mounted on the light projection device 1 on the virtual image 3.
  • the display position of the virtual image 3 is not particularly limited, and for example, the virtual image 3 may be displayed to the left or right or below the light projection device 1. Alternatively, the virtual image 3 may be displayed superimposed on the screen 17 mounted on the light projection device 1.
  • the following describes a preferred display position for the virtual image 3. It is preferable to display the center of the virtual image 3 below the horizontal line with the ground. If the center of the virtual image 3 is displayed above the horizontal line with the ground (especially at an angle of 25 degrees or more above the horizontal line), the head will bend upwards, making it difficult to align the virtual image 3 with the real world.
  • the light projection device 1 is disposed below the horizontal direction with respect to the ground.
  • the center of the virtual image 3 is displayed above the light projection device 1, it is preferable to display the center of the virtual image 3 in the range from the horizontal direction with respect to the ground to the line segment connecting the center of the observer's pupil 52 and the center of the light projection device 1. Displaying the center of the virtual image 3 at this position makes it easier to align the virtual image 3 with the real world.
  • the center of the virtual image 3 When the virtual image 3 is displayed below the light projection device 1, it is preferable to display the center of the virtual image 3 above a line segment that is inclined 30 degrees downward from the horizontal direction to the ground.
  • the light projection device 1 can display the virtual image 3 in front of the observer's line of sight.
  • a detection unit included in the light projection device 1 detects the position of the contact lens type device 2 or the pupil 52, or both.
  • the light projection device 1 can display the virtual image 3 in front of that line of sight.
  • the light projection device 1 includes at least a projection optical system 11, a light source 12, and a control unit 13.
  • the projection optical system 11 projects light toward the observer.
  • the projection optical system 11 has a scanning unit 111 and an angle adjustment unit 112.
  • the scanning unit 111 scans the light from the light source 12.
  • a MEMS (Micro Electro Mechanical Systems) mirror or a digital micromirror device (DMD) can be used as the scanning unit 111.
  • the MEMS mirror scans the light from the light source 12 by changing the angle of the mirror using an electrical signal.
  • the digital mirror device is a MEMS device in which a large number of tiny movable mirrors are arranged on an integrated circuit substrate.
  • the angle adjustment unit 112 adjusts the emission angle of the light from the scanning unit 111 and emits the light toward the observer's pupil 52.
  • a mirror, a lens, a prism, a diffraction grating, a metamaterial, etc. can be used as the angle adjustment unit 112.
  • the method for driving the angle adjustment unit 112 can be, for example, a gimbal method or a galvano method.
  • a gimbal mirror or a MEMS (Micro-Electro-Mechanical Systems Mirror) mirror can be used as the gimbal-type angle adjustment unit 112.
  • a gimbal mirror is a mirror that can rotate on two axes.
  • a MEMS mirror is a mirror with a fine mechanical structure, and the mirror can be vibrated and rotated minutely using an electrical signal. This makes it possible to scan the emitted light and form an image.
  • the galvanometer type angle adjustment unit 112 may be, for example, a galvanometer.
  • a galvanometer is a device that scans the emitted light by minutely vibrating a mirror using an electrical signal. By controlling the position of the mirror, the direction of the light can be changed, and the emitted light can be scanned.
  • the light from the scanning unit 111 is projected onto the pupil via the angle adjustment unit 112, but this order is not limited to this.
  • the light from the angle adjustment unit 112 may be projected onto the pupil via the scanning unit 111.
  • the control unit 13 has a light source control unit 131, a scanning control unit 132, and an angle control unit 133.
  • the light source control unit 131 controls the light emission of the light source 12 based on image data.
  • the scanning control unit 132 controls the scanning direction and scanning timing of the scanning unit 111 based on image data.
  • a microcontroller, a driver integrated circuit (IC), a signal generation circuit, etc. can be used as the control unit 13.
  • the angle control unit 133 controls the angle of the angle adjustment unit 112 of the projection optical system 11. Specifically, the angle control unit 133 controls the angle of the angle adjustment unit 112 according to the positional relationship between the light projection device 1 and the contact lens type device 2 or the pupil 52, or both. This positional relationship can be detected by the detection unit 14, which will be described later.
  • the change in pupil position were tracked solely by controlling the scanning unit 111, it would be difficult to track a wide range.
  • the image can be divided into multiple regions, and the region displayed can be changed according to the pupil position. This makes it possible to change the apparent irradiation position.
  • the wider the tracking range is, the fewer the number of pixels that make up the image, and the lower the resolution. As a result, the tracking range is inevitably narrower.
  • the scanning unit 111 can be mounted on a driving unit such as a gimbal mechanism to widen the light emission range of the scanning unit 111.
  • a driving unit such as a gimbal mechanism to widen the light emission range of the scanning unit 111.
  • this method requires torque to drive the driving unit, which increases the size of the driving unit.
  • the optical system changes in real time, which causes degradation of the image.
  • the image display device 10 is therefore equipped with an angle adjustment unit 112. Therefore, even if the positional relationship between the light projection device 1 and the pupil (eyeball) changes significantly, the change can be detected and tracked. In other words, the image display device 10 can display images without being affected by the presence or absence of a change in the positional relationship between the light projection device 1 and the pupil, and the degree of change.
  • the image display device 10 can display high-resolution images over a wide range. This effect is similarly achieved in other embodiments described below. Therefore, repeated description may be omitted in the explanation of other embodiments.
  • the light projection device 1 further includes a detection unit 14.
  • the detection unit 14 detects the positional relationship between the light projection device 1 and the contact lens type device 2 or the pupil 52, or both. This positional relationship includes distance and direction.
  • the detection unit 14 detects this positional relationship using a triangulation method or a ToF (Time of Flight) method. For example, when the detection unit 14 has a stereo camera, the detection unit 14 detects this positional relationship using a triangulation method. For example, when the detection unit 14 has a ToF sensor, the detection unit 14 detects this positional relationship using a ToF method.
  • the ToF method is a technology that measures distance using the time of flight of a signal. A signal such as a laser or ultrasound is irradiated onto the target, and the distance to the target is calculated by measuring the time it takes for the reflected signal to return.
  • the detection unit 14 may detect this positional relationship using eye tracking technology using a video processing method or an infrared method.
  • the video processing method calculates the position of the pupil by, for example, detecting the outline of the pupil from an image captured by a camera.
  • the infrared method calculates the position of the pupil by, for example, detecting the pupil from an image captured by an infrared camera.
  • the light projected onto the contact lens type device 2 is preferably laser light.
  • the image display device 10 is preferably of a laser scanning type (LBS: Laser Beam Scanning).
  • LBS Laser Beam Scanning
  • the laser scanning type image display device 10 displays an image by scanning laser light. Since laser light has high coherency and a narrow wavelength width, an optical system can be realized that narrows the spot on the retina even if the distance between the light projection device 1 and the observer is large. This makes it possible to maintain high resolution.
  • laser light since laser light is not easily diffused, it is possible to display a clear image with little image distortion even at a distance.
  • laser light has high light brightness and constant wavelength characteristics, it is suitable for projecting clear and bright images onto the retina.
  • the characteristics of laser light include a high contrast ratio, a wide color gamut, and high resolution.
  • the contact lens type device can guide only the projected light from the light projection device 1 to the retina by using the functions of diffraction and focusing with wavelength selectivity, thereby enabling the observer to observe the virtual image 3.
  • a light beam 61 from a light projection device (not shown) is diffracted and focused by the contact lens type device 2 and projected onto the pupil 52.
  • the light beam 61 projected onto the pupil 52 forms a focused point 62 and is projected onto the retina 53.
  • the lens of the eyeglass-type device forms a focal point at the position of the pupil 52.
  • the contact lens-type device 2 is placed directly on the surface of the eyeball 5, so a sufficient distance cannot be secured between the contact lens-type device 2 and the crystalline lens 51. Therefore, the image display device 10 does not form a focal point on the pupil 52, but forms a focal point 62 between the center 54 of the eyeball and the crystalline lens 51. This allows the contact lens-type device 2 attached to the surface of the eyeball 5 to appropriately project light onto the retina 53.
  • the image display device 10 can display an image without being affected by the presence or absence of a change in the positional relationship between the light projection device 1 and the pupil and the degree of change.
  • the angle of view and resolution of the virtual image (not shown) vary depending on the position of the focal point 62.
  • a typical retinal direct imaging type image display device using Maxwellian vision forms a light focusing point 62 on the crystalline lens 51.
  • the angle of view (the range where light is irradiated onto the retina) becomes too wide, making it difficult to observe a high-resolution virtual image.
  • a focal point 62 is formed between the center 54 of the eyeball and the crystalline lens 51.
  • the angle of view is narrower than with typical retinal direct imaging type image display devices using Maxwellian vision, it is possible to observe a high-resolution virtual image.
  • FIG. 4 is a schematic diagram showing an example of the configuration of the contact lens type device 2 according to one embodiment of the present technology.
  • a deflection section 21 is formed in the contact lens type device 2.
  • This deflection section 21 may be formed on the surface where the light is incident, or on the surface facing the eyeball. Alternatively, the deflection section 21 may be embedded inside the contact lens type device 2.
  • the deflection unit 21 deflects the light from the light projection device 1 toward the observer's pupil 52 by using the functions of diffraction and focusing with wavelength selectivity.
  • the deflection unit 21 is preferably a holographic optical element. Holographic optical elements can be made small and lightweight, and can be manufactured at low cost. Of the light of each wavelength incident on the holographic optical element, only light of a specific wavelength coming from a specific direction interferes with each other due to interference fringes formed on the holographic optical element, and is diffracted or focused in a specific direction.
  • the deflection unit 21 is configured by stacking a diffraction hologram film group 211 that diffracts light and a focusing hologram film group 212 that focuses light. Note that the elements that make up the deflection unit 21 are not limited to holographic optical elements, and may be, for example, diffraction optical elements.
  • the contact lens type device 2 preferably has a self-alignment function.
  • the self-alignment function is a function in which the contact lens type device 2 itself adjusts the appropriate wearing position of the contact lens type device 2. Blinking or eye movement can cause the position or angle of the contact lens type device 2 to shift, but the self-alignment function allows it to be worn at an appropriate position and angle. Wearing the contact lens type device 2 at an appropriate position and angle allows the light from the light projection device 1 to be appropriately diffracted and focused, and projected toward the observer's pupil 52.
  • the surface of the contact lens type device 2 has a shape that conforms to the surface of the eyeball. This makes the center position of the pupil coincide with the center position of the contact lens type device 2. This allows light from the light projection device 1 to be projected toward the observer's pupil 52.
  • the contact lens type device 2 does not rotate in a circumferential direction around its center. Since the eyeball is constantly moving, the contact lens type device 2 may rotate slightly. If the contact lens type device 2 rotates, the image may be distorted or the diffraction angle may shift, making it dark, and the correct image may not be obtained.
  • FIGS. 5 and 6 are front views showing an example of the configuration of the contact lens type device 2 according to one embodiment of the present technology.
  • a weight portion 21 is provided at the bottom of the contact lens type device 2. This causes the center of gravity to move downward. When the contact lens type device 2 attempts to rotate, the center of gravity generates a force that acts in the opposite direction to the direction of rotation. This force suppresses the rotation of the contact lens type device 2.
  • a groove 23 is formed in the contact lens type device 2, extending in a direction from the upper eyelid toward the lower eyelid. Tears secreted from the lacrimal gland located behind the upper eyelid pass through this groove 23 and move to the lower eyelid. The formation of this groove 23 suppresses rotation of the contact lens type device 2.
  • the thickness of the contact lens type device 2 may vary depending on the position.
  • the contact lens type device 2 may have a detectable portion 24.
  • the detectable portion 24 may be colored, for example, like a marker, may have light reflection characteristics different from other portions, or may be an RFID (Radio Frequency Identification) tag.
  • RFID Radio Frequency Identification
  • the detection unit 14 can detect the position of this detectable portion 24. For example, if the detectable portion 24 is given a specific color, the detection unit 14 can identify this color and detect the position of the detectable portion 24.
  • each contact lens type device 2 is given unique identification information, and this identification information may be associated with specification information of the contact lens type device.
  • This specification information may include, for example, material, curvature, diameter, light transmittance, diffraction angle, date of manufacture, etc.
  • This associated information may be stored in the light projection device 1, for example, as a database. By referring to this associated information, the light projection device 1 can project light appropriate for each contact lens type device.
  • the image display device further includes a focus adjustment unit that adjusts the focus based on the distance between the light projection device 1 and the contact lens type device 2. This allows a clear virtual image to be stably observed.
  • FIG. 7 is a block diagram showing an example of the configuration of an optical projection device 1 according to one embodiment of the present technology.
  • the light projection device 1 further includes a focus adjustment unit 15.
  • the focus adjustment unit 15 adjusts the beam diameter of each light beam and adjusts the focus by driving the lenses of the projection optical system 11 based on the distance between the light projection device 1 and the contact lens type device 2.
  • the distance between the light projection device 1 and the contact lens type device 2 can be acquired by the detection unit 14.
  • an image correction unit that corrects the displayed virtual image based on the positional relationship between the light projection device 1 and either the contact lens type device 2 or the pupil 52 or both.
  • FIG. 8 is a block diagram showing an example configuration of an optical projection device 1 according to one embodiment of the present technology.
  • the light projection device 1 further includes an image correction unit 16.
  • the image correction unit 16 corrects the displayed virtual image based on the positional relationship between the light projection device 1 and the contact lens type device 2 or the pupil 52, or both.
  • the image correction unit 16 calculates the angle of incidence of light to the contact lens type device 2 according to the amount of change in the pupil, the detected part, etc., and calculates the changes in size and position and distortion that occur in the virtual image. Then, based on the calculation results, the size, position, shape, etc. of the virtual image are corrected. This suppresses changes in size and position and distortion of the virtual image, making it possible to display a clearer virtual image.
  • the present technology provides a contact lens type device that is placed on an observer's eyeball and projects light from a light projection device onto the observer's pupil, wherein the light projection device is separate from the contact lens type device and has an angle adjustment unit that adjusts the emission angle of light from the scanning unit depending on the positional relationship between the light projection device and the contact lens type device or the pupil, or both.
  • the contact lens type device 2 according to one embodiment of the present technology will be described with reference again to Figures 1 and 2.
  • the contact lens type device 2 is placed on the observer's eyeball 5 and projects light from the light projection device 1 onto the observer's pupil 52.
  • the light projection device 1 is separate from the contact lens type device 2.
  • the light projection device 1 has a scanning unit 111 that scans the light from the light source, and an angle adjustment unit 112 that adjusts the emission angle of the light from the scanning unit 111.
  • the angle adjustment unit 112 adjusts the emission angle of the light according to the positional relationship between the light projection device 1 and the contact lens type device 2 or the pupil 52, or both.
  • the present technology can also be configured as follows. [1] a light projection device that projects light toward an observer; a contact lens type device separate from the light projection device for projecting light from the light projection device onto the observer's pupil; An image display device, wherein the light projection device has an angle adjustment unit that adjusts the emission angle of light projected onto the contact lens type device depending on the positional relationship between the light projection device and the contact lens type device or the pupil, or both. [2] The light projection device is fixed to the observer's hand. The image display device according to [1]. [3] The image display device according to [2], wherein when the light projection device is held in front of the observer and light from the light projection device is projected onto the observer's pupil, a virtual image is displayed around the light projection device.
  • the optical system further includes a detection unit that detects a positional relationship between the light projection device and the contact lens type device or the pupil, or both of the light projection device and the contact lens type device.
  • the image display device according to any one of [1] to [3].
  • the detection unit detects the positional relationship by a triangulation method or a ToF method.
  • the contact lens type device includes a detection part, The detection unit detects the position of the detection target unit.
  • the optical projection device further includes a focus adjustment unit that adjusts a focus based on a distance between the optical projection device and the contact lens type device.
  • the image display device further includes an image correction unit that corrects a virtual image to be displayed based on a positional relationship between the light projection device and the contact lens type device or the pupil, or both of the light projection device and the contact lens type device.
  • the image display device according to any one of [1] to [7].
  • the optical fiber further includes a scanning unit that scans light from the light source.
  • the image display device according to any one of [1] to [9].
  • the light projected onto the contact lens type device is laser light.
  • the image display device according to any one of [1] to [10].
  • a deflection portion is formed in the contact lens type device, The deflection unit deflects light from the light projection device toward the pupil of the observer.
  • the image display device according to any one of [1] to [11].
  • the deflection unit is a holographic optical element.
  • the image display device according to [12].
  • the contact lens type device has a self-alignment function.
  • the image display device according to any one of [1] to [13].
  • a contact lens type device that is placed on an eyeball of an observer and projects light from a light projection device onto a pupil of the observer
  • a contact lens type device wherein the light projection device, which is separate from the contact lens type device, has an angle adjustment section that adjusts the emission angle of light projected onto the contact lens type device depending on the positional relationship between the light projection device and the contact lens type device, the pupil, or both.

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Abstract

L'invention concerne un dispositif d'affichage d'image capable d'afficher des images sans être affecté par la présence ou l'absence d'un changement de la relation de position entre un dispositif de projection de lumière et une pupille, et par le degré de ce changement.　La présente technologie concerne un dispositif d'affichage d'image comprenant : un dispositif de projection de lumière qui projette de la lumière vers un observateur ; et un dispositif de type lentille de contact qui est séparé du dispositif de projection de lumière et projette la lumière provenant du dispositif de projection de lumière sur la pupille de l'observateur. Le dispositif de projection de lumière a une unité de réglage d'angle qui règle l'angle d'émission de lumière provenant d'une unité de balayage en fonction de la relation de position entre le dispositif de projection de lumière et le dispositif de type lentille de contact et/ou la pupille.
PCT/JP2024/039761 2023-11-24 2024-11-08 Dispositif d'affichage d'image et dispositif de type lentille de contact Pending WO2025110025A1 (fr)

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Publication number Priority date Publication date Assignee Title
US20210072821A1 (en) * 2016-04-21 2021-03-11 Maximilian Ralph Peter von und zu Liechtenstein Apparatus und Method for Rendering a Virtual Monitor on Smart Ophthalmic Devices in Augmented Reality Environments
JP2022508401A (ja) * 2018-12-20 2022-01-19 テクタス コーポレイション 電子コンタクトレンズにおける動的老視矯正法
US20220044302A1 (en) * 2020-08-07 2022-02-10 International Business Machines Corporation Smart contact lenses based shopping
WO2022091398A1 (fr) * 2020-11-01 2022-05-05 正典 伊原 Dispositif d'affichage comprenant unité de commande de transmittance
JP2023135245A (ja) * 2022-03-15 2023-09-28 ソニーグループ株式会社 導光装置、表示装置及び表示システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210072821A1 (en) * 2016-04-21 2021-03-11 Maximilian Ralph Peter von und zu Liechtenstein Apparatus und Method for Rendering a Virtual Monitor on Smart Ophthalmic Devices in Augmented Reality Environments
JP2022508401A (ja) * 2018-12-20 2022-01-19 テクタス コーポレイション 電子コンタクトレンズにおける動的老視矯正法
US20220044302A1 (en) * 2020-08-07 2022-02-10 International Business Machines Corporation Smart contact lenses based shopping
WO2022091398A1 (fr) * 2020-11-01 2022-05-05 正典 伊原 Dispositif d'affichage comprenant unité de commande de transmittance
JP2023135245A (ja) * 2022-03-15 2023-09-28 ソニーグループ株式会社 導光装置、表示装置及び表示システム

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