[go: up one dir, main page]

WO2020045914A1 - Système optique transparent de hmd à structure de réflexion totale - Google Patents

Système optique transparent de hmd à structure de réflexion totale Download PDF

Info

Publication number
WO2020045914A1
WO2020045914A1 PCT/KR2019/010829 KR2019010829W WO2020045914A1 WO 2020045914 A1 WO2020045914 A1 WO 2020045914A1 KR 2019010829 W KR2019010829 W KR 2019010829W WO 2020045914 A1 WO2020045914 A1 WO 2020045914A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical system
total reflection
image light
image
prism
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.)
Ceased
Application number
PCT/KR2019/010829
Other languages
English (en)
Korean (ko)
Inventor
최장호
이상준
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.)
PANOVISION Co Ltd
Original Assignee
PANOVISION Co Ltd
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 PANOVISION Co Ltd filed Critical PANOVISION Co Ltd
Publication of WO2020045914A1 publication Critical patent/WO2020045914A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • 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
    • G02B27/01—Head-up displays

Definitions

  • the present invention relates to a transmission type HMD optical system having a total reflection structure. More specifically, the present invention reduces the volume of the optical system to have an appearance design similar to that of ordinary sunglasses, and reduces the weight of the optical system to provide a fit that the user can comfortably wear without a large weight, and provides an image such as an internal reflection curved mirror.
  • the present invention relates to a transmission-type HMD optical system that provides an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen by maximizing the optical means to the user's eye as close as possible, and simplifies the assembly process.
  • Head mounted display is a device that enlarges the virtual image emitted from the high-definition ultra-small display placed in close proximity to the eye through the optical system, and the HMD is blocked so that it is provided through this optical system.
  • the optical system is configured so that the optical system located in front of the user's eyes is composed of transparent or semi-transparent windows so that not only the virtual image but also the external HMD image in front of the user can be superimposed simultaneously. It is called HMD.
  • HMD optical system requires a range that can provide the same image for both eyes even if the pupils are different from each other.
  • the size of the exit pupil increases, more users can view the virtual screen comfortably without the inconvenience of cropping the image.
  • the exit pupil is enlarged, it is located in front of the user's eyes.
  • the transmissive HMD optical system whose main purpose is external use, it tends to reduce the volume and weight of the optical system by excessively reducing the exit pupil size or reducing the size of the virtual screen.
  • Transmissive HMD Optical Sheath Even though it is able to provide the appropriate virtual screen size so that a sufficient amount of information to be provided with all necessary to provide an easy-to-wear transmissive HMD optical system reduces the volume and weight.
  • the refractive index is larger in the material than in the air, so that the virtual screen can be transported with a smaller size than the actual screen size.
  • Light splits the image using the TIR (Total Internal Reflection) principle which cannot penetrate the surface of the material, transfers the image into the light guide, and then emits the image to the air in front of the user's eyes.
  • the conventional see-through optical system uses a half mirror method, in which the polarization splitter is diagonally positioned in the space until the enlarged image reaches the inside of the semi-transparent concave reflector, so that the viewing angle which is the purpose of a typical head mount display is shown.
  • the optical system In order to enlarge the FOV or Eye Box, there is a structural problem in which the optical system must be proportionately increased, and in order to enlarge them, the overall size and weight of the apparatus increases, so that the entire face is worn by the user. There is a problem that can be easily felt because it becomes a pressure factor.
  • PBS Prism is applied as another conventional conventional see-through optical system, and since the image transmission path uses a medium having a high refractive index such as plastic or glass instead of air, an enlarged image is displayed more than air. It is possible to transmit at a small angle, so it is possible to present a transmissive HMD Optic module having a volume smaller than that of the half mirror method, but the image enlargement is limited, it does not reduce the weight, and the weight is heavier, which may cause inconvenience to users. to be.
  • the present invention is to provide a user with a transmission type HMD optical system having a total reflection structure.
  • the present invention aims at reducing the volume of the optical system to have an appearance design similar to that of ordinary sunglasses in order to solve the above problems.
  • the present invention is to reduce the weight of the optical system to have a means for providing a user can wear comfortably without a large weight burden.
  • an object of the present invention is to provide an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen by as close as possible to the user's eye optical means for enlarging an image, such as an internal reflection curved mirror.
  • an object of the present invention is to provide a transmission-type HMD optical system that can simplify the assembly process and lower the mass production cost.
  • a transmission type HMD optical system having a total reflection structure includes: a display panel unit; A light guide prism for totally reflecting and transmitting the image light generated by the display panel; A convex curved mirror which changes the polarization direction of the image light transmitted from the light guide prism and is sent out through the enlargement and reflection means; And a concave prism for emitting the image light transmitted from the convex curved mirror to the eyeball direction of the user. It may include.
  • the convex surface of the convex curved mirror is half-mirror coated to reflect a part of the virtual image light inwardly and to transmit a part of the external image light, and a ⁇ / 4 phase shift film is attached to the other plane of the convex surface.
  • a ⁇ / 4 phase shift film is attached to the other plane of the convex surface.
  • a PBS film may be attached to the image polarization reflection surface of the light guide prism so as to reflect only a specific polarization component of the image light to be transmitted.
  • the curvature of the concave exit surface of the concave prism may be concentric with the curvature of the reflective surface of the convex curved mirror.
  • an air gap may be included between the light guide prism and the convex curved mirror to support total reflection of virtual image light in the total reflection surface of the light guide prism.
  • the convex surface of the convex curved mirror is half-mirror coated to reflect a part of the virtual image light inwardly and transmit a part of the external image light, and a ⁇ / 4 phase shift film is attached to the other plane of the convex surface.
  • PBS films of the same direction may be attached to two image polarization reflecting surfaces of the light guide prism so as to reflect only a specific polarization component of the image light transmitted.
  • the curvature of the concave exit surface of the concave prism may be concentric with the curvature of the reflective surface of the convex curved mirror.
  • the air guide may further include an air gap between the light guide prism and the convex curved mirror to support total reflection of the virtual image light on the total reflection surface of the light guide prism.
  • the convex surface of the convex curved mirror is half-mirror coated to reflect a part of the virtual image light inwardly and transmit a part of the external image light, and a ⁇ / 4 phase shift film is attached to the convex surface and the other plane.
  • a ⁇ / 4 phase shift film is attached to the convex surface and the other plane.
  • PBS films of the same direction may be attached to two image polarization reflecting surfaces of the light guide prism so as to reflect only a specific polarization component of the image light transmitted.
  • the air gap may further include an air gap between the light guide prism and the convex curved mirror to support total reflection of the virtual image light in the total reflection surface of the light guide prism.
  • the concave curved surface of the compensation lens may form the same curvature as the convex surface of the convex curved mirror in order to eliminate distortion on the transmitted external image.
  • the present invention can provide a user with a transmission type HMD optical system having a total reflection structure.
  • the present invention can reduce the volume of the optical system in order to solve the above-described problems can have an appearance design similar to the general sunglasses.
  • the present invention can reduce the weight of the optical system to have a means for providing a user can wear comfortably without a large weight burden.
  • the present invention can provide an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen by the optical means for expanding the image, such as the internal reflection curved mirror as close as possible to the eye of the user.
  • the present invention can provide a transmissive HMD optical system that can simplify the assembly process to lower the mass production cost.
  • the present invention can provide a user with a transmission type HMD optical system having a total reflection structure.
  • the present invention has a total reflection structure that is an efficient image transmission means, the thinner prism and the internal reflection curved mirror means that can maximize the size of the virtual screen in the state as close as possible to the user's eye, the interactive angle virtual It can be provided to users of transmissive HMD optical systems that can simultaneously view images and external images while increasing usability by reducing volume and weight.
  • the present invention can provide a transmission-type HMD optical system that can reduce the production cost by minimizing the bonding coupling of the optical components and simplifying the assembly process using the total reflection principle.
  • FIG. 1 is a view for explaining a conventional see-through optical system using a half mirror method.
  • FIG. 2 is a view for explaining a conventional See-through optical system using a PBS Prism method.
  • Figure 3 shows an example of a transmission type HMD optical system having a total reflection structure proposed by the present invention.
  • FIG. 4 is a view for explaining the angle of incidence and the angle of refraction in relation to the present invention.
  • 5 is a view for explaining the total reflection structure applied to the present invention.
  • FIG. 6 is a view for explaining the total reflection structure for reducing the volume and weight according to the present invention.
  • FIG. 7 is a view for explaining a concentric circle structure for a transmission-type HMD optical system applied to the present invention.
  • FIG. 8 illustrates an example of a transmission-type HMD optical system having a total reflection structure according to another embodiment of the present invention.
  • FIG. 9 illustrates an example of a transmission-type HMD optical system having a total reflection structure according to another embodiment of the present invention described with reference to FIG. 8.
  • FIG. 1 is a view for explaining a conventional see-through optical system using a half mirror method.
  • the spectacle display device shown in FIG. 1 is disclosed in Korean Patent No. 10-0928226, a display element 10 for emitting image light, a polarization separator 11 for reflecting only a specific polarization among light emitted from the micro display panel, A phase retardation plate 12 for converting the linearly polarized light reflected by the polarization splitter into circularly polarized light or converting the incident circularly polarized light into linearly polarized light, and expanding the circularly polarized light that has passed through the phase retardation plate 12 again.
  • An optical transmissive concave reflector 13 which is sent to the phase retardation plate 12 and an optical open / close switch panel 14 attached to an outer surface of the transflective concave reflector to open and close ambient light; It consists of a system.
  • the image light generated by the display device 10 by the above configuration is P-wave or S-wave property of the whole image light in the 90-degree direction by the polarization separator 11 disposed at an inclination of 45 degrees to the display device 10. Only 50% of the beams are transmitted or reflected to reach the phase retardation plate 12, and the linearly polarized image light in the phase retardation plate 12 is converted into circularly polarized light and reaches the transflective concave reflector 13 and then is reflected. And the circular polarization state of opposite rotation direction passes through the phase delay plate 12 and the polarization separator 11 to reach the user's eye to view the virtual image enlarged in the transflective concave reflector 13. In addition, since there is no lens that obstructs the field of view, the external image may be simultaneously viewed.
  • the viewing angle which is the purpose of a conventional head mount display ( In order to enlarge the FOV) or the Eye Box, there is a structural problem that the optical system must be proportionately increased, and in order to enlarge them, the overall size and weight of the apparatus increases, and the user presses the entire face when worn by the user. There is a problem that can be easily felt because it becomes a factor.
  • FIG. 2 is a view for explaining a conventional See-through optical system using a PBS Prism method.
  • the display device 20 emits image light, and the light disposed on the front of the display panel and emitted from the display.
  • a first prism 21 for injecting light into the optic module a polarizing beam splitter (PBS) film 211 attached to a slope of the first prism 21, and a second unit integrated on the bottom surface of the PBS film
  • a transmissive HMD device comprising a prism 22, a phase shift film 221 attached to the second prism with an adhesive, and a convex curved surface 23 coupled to and integrated with a lower surface of the phase shift film 221 to be integrated. It consists of a system.
  • Image light emitted from the display device 20 by the above configuration is incident to the Optic module through the first prism, and is attached to the slope of the first prism 21 to select and transmit only a specific polarization beam PBS film
  • the polarization direction of the beam is shifted by ⁇ / 4 by the phase shift film 221 is transmitted to the convex curved mirror,
  • the phase shift film 221 is passed again, and the phase shift is increased by another ⁇ / 4.
  • the virtual image is enlarged in the direction of the user's eye by reflecting the first image light through the PBS film that does not pass through the PBS film that passed through the initial PBS film.
  • the user can experience augmented reality because the external image can be viewed simultaneously through the combined first prism 21 and the second prism 22.
  • the image transmission passage can transmit an enlarged image at an angle less than that of air, thereby reducing the volume of the image transmission passage.
  • Transmissive HMD Optic module can be proposed, but the image enlargement is limited, it does not reduce the weight, but rather the weight is heavier, which may cause inconvenience to users.
  • the conventional See-through optical system described above uses a half mirror method.
  • the polarization separator is diagonally positioned in the space until the enlarged image reaches the inside of the semi-transparent concave reflector, and thus, a typical head mounted display
  • FOV objective field of view
  • eye box eye box
  • PBS Prism is applied as another conventional conventional see-through optical system, and since the image transmission path uses a medium having a high refractive index such as plastic or glass instead of air, an enlarged image is displayed more than air. It is possible to transmit at a small angle, so it is possible to present a transmissive HMD Optic module having a volume smaller than that of the half mirror method, but the image enlargement is limited, it does not reduce the weight, and the weight is heavier, which may cause inconvenience to users. to be.
  • an object of the present invention is to provide a user with a transmission type HMD optical system having a total reflection structure to reduce the volume of the optical system to have an appearance design similar to that of ordinary sunglasses in order to solve the above-mentioned problems.
  • the present invention is to reduce the weight of the optical system to have a means for providing a user can wear comfortably without a large weight burden.
  • an object of the present invention is to provide an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen by as close as possible to the user's eye optical means for enlarging an image, such as an internal reflection curved mirror.
  • an object of the present invention is to provide a transmission-type HMD optical system that can simplify the assembly process and lower the mass production cost.
  • Figure 3 shows an example of a transmission type HMD optical system having a total reflection structure proposed by the present invention.
  • the HMD optical system having a total reflection structure for achieving the above technical problem includes a display panel unit 30 and a light guide prism which transmits the image light generated in the display panel by total reflection. 31, a convex curved mirror 32 for changing the polarization direction of the image transmitted from the light guide prism and returning the image by using the enlargement and reflection means, and a concave prism 33 for emitting the image in the direction of the eyeball of the user. ) May be included.
  • the convex surface 322 of the convex curved mirror 32 has a half mirror coating to reflect a part of the virtual image light inwardly and transmit a part of the external image light, and the other plane 321 has a lambda / 4. Phase shift film may be attached.
  • a PBS film may be attached to the image polarization reflecting surface 311 of the light guide prism 31 so as to reflect only a specific polarization component of the transmitted image light.
  • the curvature of the concave exit surface 331 of the concave prism 33 may be concentric with the curvature of the reflective surface 322 of the convex curved mirror 32 so that the external image can be seen clearly.
  • an air gap may be provided between the light guide prism 31 and the convex curved mirror 32 so that total reflection of the virtual image light occurs smoothly on the total reflection surface 311 of the light guide prism 31.
  • the image light generated by the display device 30 by the above configuration is incident to the light guide prism 31 and totally reflected by the total reflection surface 311, and is then identified by the PBS film attached to the opposite surface 312.
  • the polarization component can be reflected.
  • the polarization direction of the beam is shifted by ⁇ / 4 by the phase shift film 321 attached to the plane of the convex curved mirror 32 and transferred to the convex curved mirror 32, and then the convex curved mirror ( Reverting the magnified image obtained through the internal reflection of the half mirror coated on the curved surface 322 of 32) and passing the phase shift film 321 again, the phase shift is made by another ⁇ / 4,
  • the displacement of ⁇ / 2 is finally made to pass through the PBS film instead of reflection, and passes through the concave optical structure and the virtual image enlarged in the direction of the eye of the user through the concave prism 33.
  • External images can be provided simultaneously.
  • FIG. 4 is a view for explaining an incident angle and a refractive angle in relation to the present invention.
  • Equation 1 when two media having different refractive indices of n1 and n2 contact each other, the path of light passing through the media is bent due to different luminous fluxes, and the degree of rotation is expressed in degrees on the plane of incidence of light. ⁇ 1 and ⁇ 2, and Snell's law is defined as in Equation 1 below.
  • FIG. 5 is a view for explaining the total reflection structure applied to the present invention.
  • the critical angle refers to the minimum necessary angle for the light not to penetrate through the material to be internally reflected and continue to the inside of the material, and in the case of plastic or glass, normal to the surface. It is about 42 ⁇ 43 °.
  • TIR total internal reflection
  • Typical products that use total reflection of light include optical fiber and light pipe, and the light guide is a path using total reflection of light.
  • FIG. 6 is a view for explaining the total reflection structure for reducing the volume and weight according to the present invention.
  • FIG. 6 is a view illustrating a comparison of the structure of the transmission type HMD optical system of the prior art for making the same viewing angle and the structure of the transmission type HMD optical system to reduce the volume and weight by using the total reflection proposed in the present invention.
  • the angle of the reflective inclined plane can be reduced to a minimum level according to the viewing angle, so that the thickness of the optical system is significantly thinner than that of the conventional optical system.
  • the viewing angle can be maximized by minimizing the distance to the user's eye and reflecting surface for final magnification of the image.
  • FIG. 7 is a view for explaining a concentric circle structure for a transmission-type HMD optical system applied to the present invention.
  • FIG. 7 a window principle of a concentric circle structure for establishing a transmission-type HMD optical system for recognizing an external image, and a structure combined with a light guide prism by applying this principle in the present invention is shown.
  • the window having the curvature of the concentric circle structure shown in FIG. 7 (b) is capable of clear external image recognition because the external image passes through the emission surface and is made of parallel light again.
  • (c) of FIG. 7 deforms the window of the concentric circle structure shown in (b) of FIG. 7 and introduces a light guide prism using total reflection inside the concentric circle structure window to simultaneously recognize the external image and the virtual image. So that users can use augmented reality.
  • the image light generated by the display element 30 is incident on the light guide prism 31 and totally reflected on the total reflection surface 311.
  • the particular polarization component is then reflected by the PBS film attached to the opposite side 312.
  • the polarization direction of the beam is shifted by ⁇ / 4 by the phase shift film 321 attached to the plane of the convex curved mirror 32 and transferred to the convex curved mirror 32, and then the convex curved mirror ( The enlarged image obtained through the internal reflection of the half mirror coated on the curved surface 322 of 32) is passed back to pass the phase shift film 321 again.
  • the present invention reduces the volume of the optical system to have an appearance design similar to that of ordinary sunglasses, and reduces the weight of the optical system to provide a comfortable fit for the user to wear comfortably without heavy weight, and to enlarge an image such as an internal reflection surface mirror
  • the means as close to the user's eye as close as possible to provide an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen, and simplify the assembly process can provide a transmission type HMD optical system that can lower the production cost.
  • FIG. 8 illustrates an example of a transmission-type HMD optical system having a total reflection structure according to another embodiment of the present invention.
  • FIG. 8 Another embodiment of a transmissive HMD optical system having a total reflection structure of the present invention shown in FIG. 8 relates to a transmissive HMD optical system having a total reflection structure using an LCOS display having front illumination.
  • the front light 70 the illumination prism 71 for injecting the front light
  • the display panel 72 for reflecting the beam of the front light to form an image
  • the display panel A light guide prism 73 which transmits the generated image light by polarization reflection and total reflection
  • a convex curved mirror which changes the polarization direction of the image transmitted from the light guide prism and returns the image by using an enlargement and reflection means ( 74, a concave prism 75 that emits an image in an eyeball direction of the user.
  • the convex surface 742 of the convex curved mirror 74 has a half mirror coating to reflect a part of the virtual image light inwardly and transmit a part of the external image light, and the other plane 741 has a lambda / 4. Phase shift film may be attached.
  • PBS films in the same direction may be attached to the two image polarization reflecting surfaces 731 and 733 of the light guide prism 73 so as to reflect only a specific polarization component of the transmitted image light.
  • the curvature of the concave exit surface 751 of the concave prism 75 may be concentric with the curvature of the reflective surface 742 of the convex curved mirror 74 so that the external image can be seen clearly.
  • an air gap may be provided between the light guide prism 73 and the convex curved mirror 74 so that total reflection of the virtual image light occurs smoothly at the total reflection surface 732 of the light guide prism 73.
  • the image light emitted from the front light 70 and generated by the display element 72 is incident to the light guide prism 31 and then polarized by a PBS film attached to the first inclined surface 731. After the light of the component is reflected, it is totally internally reflected at the total reflection surface 732.
  • the light is again reflected by the PBS film attached to the opposite inclined surface 733, and the polarization direction of the beam is shifted by ⁇ / 4 by the phase shift film 741 attached to the plane of the convex curved mirror 74.
  • the phase shift film 741 is returned by returning the enlarged image obtained through the internal reflection of the half mirror coated on the curved surface 742 of the convex curved mirror 74. If it passes again, the phase shift is made by another ⁇ / 4, so that the overall displacement of the ⁇ / 2 is finally performed in the initial PBS reflected image light, so that the PBS film is not reflected but passed through the concave prism 75.
  • FIG. 9 illustrates an example of a transmission-type HMD optical system having a total reflection structure according to another embodiment of the present invention described with reference to FIG. 8.
  • FIG. 9 Another embodiment of a transmissive HMD optical system having a total reflection structure of the present invention shown in FIG. 9 relates to another transmissive HMD optical system having a total reflection structure using an LCOS display having front illumination.
  • a front light 70 an illumination prism 71 for injecting the front light, a display panel 72 for reflecting a beam of the front light to form an image, and a display panel generated in the display panel.
  • a light guide prism 73 for transmitting the image light by polarization reflection and total reflection, and a convex curved mirror 74 for changing the polarization direction of the image transmitted from the light guide prism and returning the image by using the enlargement and reflection means.
  • a prism 75 that emits an image in the direction of the eyeball of the user, and a compensation lens 76 that can transmit an external image without distortion of the image.
  • the convex surface 742 of the convex curved mirror 74 has a half mirror coating to reflect a part of the virtual image light inwardly and transmit a part of the external image light, and the other plane 741 has a lambda / 4. Phase shift film may be attached.
  • PBS films in the same direction may be attached to the two image polarization reflecting surfaces 731 and 733 of the light guide prism 73 so as to reflect only a specific polarization component of the transmitted image light.
  • an air gap may be provided between the light guide prism 73 and the convex curved mirror 74 so that total reflection of the virtual image light occurs smoothly at the total reflection surface 732 of the light guide prism 73.
  • the concave curved surface 761 of the compensation lens 76 may form the same curvature as the convex surface 742 of the convex curved mirror 74 to eliminate distortion on the transmitted external image.
  • the image light emitted from the front light 70 and generated by the display element 72 is incident to the light guide prism 31 and is polarized by a PBS film attached to the first inclined surface 731. After the light of the component is reflected, the phase shift totally internally reflected at the total reflection surface 732 and again reflected by the PBS film attached to the opposite inclined surface 733, and is attached to the plane of the convex curved mirror 74.
  • the internal reflection of the half mirror coated on the curved surface 742 of the convex surface 74 is By returning the magnified image obtained through the phase shift film 741 again, the phase shift is performed by another ⁇ / 4, so that the overall displacement of the PBS reflected image light is ⁇ / 2.
  • PB The S film is not reflected but passes through the concave prism 75. The virtual image enlarged in the direction of the eye of the user and the external image passing through the light guide optical structure and the compensation lens are simultaneously provided.
  • the transmissive HMD optical system having the total reflection structure according to the present invention When the transmissive HMD optical system having the total reflection structure according to the present invention is applied, it is possible to reduce the volume of the optical system to have an appearance design similar to that of ordinary sunglasses.
  • the present invention can reduce the weight of the optical system to have a means for providing a user can wear comfortably without a large weight burden.
  • the present invention can provide an efficient transmission type interactive angle optical system means that can maximize the size of the virtual screen by the optical means for expanding the image, such as the internal reflection curved mirror as close as possible to the eye of the user.
  • the present invention can provide a transmission-type HMD optical system that can simplify the assembly process and lower the mass production cost.
  • the present invention can provide a user with a transmission type HMD optical system having a total reflection structure.
  • the present invention has a total reflection structure that is an efficient image transmission means, the thinner prism and the internal reflection curved mirror means that can maximize the size of the virtual screen in the state as close as possible to the user's eye, the interactive angle virtual It can be provided to users of transmissive HMD optical systems that can simultaneously view images and external images while increasing usability by reducing volume and weight.
  • the present invention can provide a transmission-type HMD optical system that can reduce the production cost by minimizing the bonding coupling of the optical components and simplifying the assembly process using the total reflection principle.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

La présente invention concerne un système optique transparent de HMD à structure de réflexion totale. Plus particulièrement, la présente invention concerne un système optique transparent de HMD qui peut : réduire le volume du système optique, de façon à avoir une conception extérieure similaire à celle de lunettes de soleil typiques ; réduire le poids du système optique, de façon à fournir une sensation lors du port qui permette à un utilisateur de porter confortablement le système optique sans surcharge pondérale ; fournir un moyen à système optique transparent et efficace à grand angle de vision, susceptible de maximiser la taille d'un écran virtuel par placement d'un moyen optique, tel qu'un miroir incurvé à réflexion interne, pour agrandir une image, aussi près que possible des globes oculaires de l'utilisateur ; et simplifier le processus d'assemblage en réduisant le coût de production en série.
PCT/KR2019/010829 2018-08-27 2019-08-26 Système optique transparent de hmd à structure de réflexion totale Ceased WO2020045914A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180100525A KR102129669B1 (ko) 2018-08-27 2018-08-27 전반사 구조를 갖는 투과형 hmd 광학시스템
KR10-2018-0100525 2018-08-27

Publications (1)

Publication Number Publication Date
WO2020045914A1 true WO2020045914A1 (fr) 2020-03-05

Family

ID=69644566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/010829 Ceased WO2020045914A1 (fr) 2018-08-27 2019-08-26 Système optique transparent de hmd à structure de réflexion totale

Country Status (2)

Country Link
KR (1) KR102129669B1 (fr)
WO (1) WO2020045914A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113805337A (zh) * 2020-05-29 2021-12-17 莱钶科技(上海)有限公司 一种多折反式的近眼光学系统
WO2023061079A1 (fr) * 2021-10-14 2023-04-20 华为技术有限公司 Appareil d'affichage, dispositif électronique et véhicule
CN116165804A (zh) * 2023-04-24 2023-05-26 杭州灵伴科技有限公司 一种光学显示设备及ar显示设备
WO2024222093A1 (fr) * 2023-04-24 2024-10-31 杭州灵伴科技有限公司 Dispositif d'affichage optique et dispositif d'affichage ar

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102543452B1 (ko) * 2020-12-28 2023-06-14 한국광기술원 착용자의 시력을 범용적으로 보정하는 증강현실 광학시스템
KR102366662B1 (ko) * 2021-09-06 2022-02-23 (주)비젼에이드 헤드 마운티드 디스플레이용 광학 모듈
CN115981082A (zh) * 2021-10-14 2023-04-18 华为技术有限公司 显示装置、电子设备以及交通工具
KR102812375B1 (ko) * 2022-09-13 2025-05-26 한국광기술원 초광각 및 선명도를 구비하는 ar 글래스 디스플레이 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020072429A (ko) * 2001-03-10 2002-09-16 엘지전자 주식회사 씨-쓰루 형 머리 장착용 표시 장치
KR20040002392A (ko) * 2001-04-27 2004-01-07 코닌클리케 필립스 일렉트로닉스 엔.브이. 컴팩트 디스플레이 디바이스
KR20080045159A (ko) * 2005-07-29 2008-05-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 편광 빔 스플리터
KR100928226B1 (ko) * 2007-11-23 2009-11-24 전자부품연구원 헤드 마운트 디스플레이 장치
JP2015121793A (ja) * 2004-03-29 2015-07-02 ソニー株式会社 表示装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1100160B1 (fr) 1999-11-10 2007-03-21 Molex Incorporated Ensemble d'un connecteur électrique avec un système de came améliorée
AU5664401A (en) 2000-06-05 2001-12-17 Lumus Ltd Substrate-guided optical beam expander
CN107422484B (zh) * 2017-09-19 2023-07-28 歌尔光学科技有限公司 棱镜式ar显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020072429A (ko) * 2001-03-10 2002-09-16 엘지전자 주식회사 씨-쓰루 형 머리 장착용 표시 장치
KR20040002392A (ko) * 2001-04-27 2004-01-07 코닌클리케 필립스 일렉트로닉스 엔.브이. 컴팩트 디스플레이 디바이스
JP2015121793A (ja) * 2004-03-29 2015-07-02 ソニー株式会社 表示装置
KR20080045159A (ko) * 2005-07-29 2008-05-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 편광 빔 스플리터
KR100928226B1 (ko) * 2007-11-23 2009-11-24 전자부품연구원 헤드 마운트 디스플레이 장치

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113805337A (zh) * 2020-05-29 2021-12-17 莱钶科技(上海)有限公司 一种多折反式的近眼光学系统
WO2023061079A1 (fr) * 2021-10-14 2023-04-20 华为技术有限公司 Appareil d'affichage, dispositif électronique et véhicule
CN116165804A (zh) * 2023-04-24 2023-05-26 杭州灵伴科技有限公司 一种光学显示设备及ar显示设备
CN118838057A (zh) * 2023-04-24 2024-10-25 杭州灵伴科技有限公司 一种光学显示设备及ar显示设备
WO2024222093A1 (fr) * 2023-04-24 2024-10-31 杭州灵伴科技有限公司 Dispositif d'affichage optique et dispositif d'affichage ar
US12181686B2 (en) 2023-04-24 2024-12-31 Hangzhou Lingban Technology Co. Ltd. Optical display device and AR display device

Also Published As

Publication number Publication date
KR102129669B1 (ko) 2020-07-02
KR20200023966A (ko) 2020-03-06

Similar Documents

Publication Publication Date Title
WO2020045914A1 (fr) Système optique transparent de hmd à structure de réflexion totale
EP3754412B1 (fr) Système portatif de réalité augmentée et dispositif d'affichage en réalité augmentée
WO2020235816A1 (fr) Appareil d'affichage de type lunettes
EP3458898B1 (fr) Dispositif d'imagerie monté sur la tête
US8000020B2 (en) Substrate-guided imaging lens
JP2019061292A (ja) 小型ヘッドマウント式表示システム
WO2016006758A1 (fr) Structure de conduit de lumière, dispositif optique et système d'imagerie
US20090322653A1 (en) Compact virtual display
WO2020004850A1 (fr) Système optique intelligent portable utilisant un élément optique d'hologramme
WO2019042133A1 (fr) Système d'affichage proche de l'œil et dispositif d'affichage proche de l'œil
WO2022255579A1 (fr) Appareil optique pour réalité augmentée ayant un espace de réfraction
WO2023146157A1 (fr) Dispositif optique pour réalité augmentée utilisant un élément optique de polarisation
WO2017022998A1 (fr) Système optique de visiocasque
WO2021010603A1 (fr) Dispositif d'affichage près de l'oeil, lunettes de réalité augmentée comprenant celui-ci, et son procédé de fonctionnement
EP3811144A1 (fr) Appareil d'affichage de type lunettes
WO2022050519A1 (fr) Système optique de dispositif d'affichage monté sur la tête et dispositif d'affichage monté sur la tête utilisant celui-ci
WO2022055083A1 (fr) Dispositif optique pour réalité augmentée, ayant une structure optique disposée en ligne droite, et procédé de fabrication d'un moyen optique
WO2023128168A1 (fr) Dispositif optique à réalité augmentée compact utilisant un collimateur intégré et un élément optique ayant un indice de réfraction négatif
WO2019107959A1 (fr) Procédé de fabrication d'un dispositif optique
WO2023063555A1 (fr) Dispositif optique de réalité augmentée compact ayant un collimateur utilisant un élément diffractif
WO2021034096A1 (fr) Dispositif optique pour réalité augmentée à fonction de correction de vision
KR100397897B1 (ko) 반사형 디스플레이 조사 시스템
WO2023128167A1 (fr) Dispositif optique compact pour réalité augmentée utilisant un élément optique à réfraction négative
WO2020045916A1 (fr) Système optique hmd de transmission comportant un moyen de vision vers l'avant de type périscope
WO2023033263A1 (fr) Dispositif optique de réalité augmentée compact utilisant un élément diffractif

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19855436

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 14/07/2021)

122 Ep: pct application non-entry in european phase

Ref document number: 19855436

Country of ref document: EP

Kind code of ref document: A1