WO2020179470A1 - Dispositif d'affichage d'image - Google Patents

Dispositif d'affichage d'image Download PDF

Info

Publication number
WO2020179470A1
WO2020179470A1 PCT/JP2020/006787 JP2020006787W WO2020179470A1 WO 2020179470 A1 WO2020179470 A1 WO 2020179470A1 JP 2020006787 W JP2020006787 W JP 2020006787W WO 2020179470 A1 WO2020179470 A1 WO 2020179470A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
incident
image display
display device
fiber
Prior art date
Application number
PCT/JP2020/006787
Other languages
English (en)
Japanese (ja)
Inventor
洋一 尾形
Original Assignee
株式会社小糸製作所
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 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2020179470A1 publication Critical patent/WO2020179470A1/fr

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
    • 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 present invention relates to an image display device.
  • instrument panels that light and display icons have been used as devices that display various types of information in vehicles. Further, as the amount of information to be displayed increases, it is also proposed to embed an image display device in the instrument panel or to configure the entire instrument panel with the image display device.
  • HUD Head Up Display
  • an optical device for projecting an image onto a wide range of the windshield is required, and it is desired to reduce the size and weight of the optical device.
  • a head-mounted HUD in the shape of glasses is known (see, for example, Patent Document 2).
  • the light emitted from the light source is directly irradiated to the eyes of the viewer, and the image is projected on the retina of the viewer.
  • FIG. 4A and 4B are schematic diagrams showing the structure of a conventional head mounted HUD.
  • FIG. 4A shows an example using a half mirror and
  • FIG. 4B shows an example using a diffraction grating. ..
  • the conventional head-mounted HUD shown in FIG. 4A includes a waveguide section 1, a prism 2, a lens 3, and a light source section 4, and a half mirror 1 a is formed in the waveguide section 1. ing.
  • the incident light Lin emitted from the light source unit 4 enters the waveguide unit 1 via the lens 3 and the prism 2, is repeatedly reflected on the front and back surfaces, and reaches the half mirror 1a. To do.
  • the light that reaches the half mirror 1a is irradiated as emitted light Lout toward the eyes of the viewer.
  • the conventional head-mounted HUD shown in FIG. 4B includes a waveguide section 1, a prism 2, a lens 3, and a light source section 4.
  • the waveguide section 1 has an inclined end surface, a back surface, and a front surface. It is formed and a diffraction grating portion 1b is provided inside. Further, reflective films 1c and 1d are formed on the back surface and the front surface of the waveguide portion 1.
  • the diffraction grating portion 1b is a blazeed grating made of a material having a refractive index different from that of the waveguide portion 1 and having irregularities formed at predetermined intervals.
  • the incident light Lin emitted from the light source unit 4 enters the waveguide unit 1 via the lens 3 and the prism 2 and is reflected by the inclined end face.
  • the incident light Lin reflected by the inclined end face travels in the waveguide portion 1, is repeatedly reflected by the reflective films 1c and 1d, and reaches the diffraction grating portion 1b.
  • the light that reaches the diffraction grating portion 1b is irradiated as emitted light Lout in the direction determined by the diffraction conditions of the diffraction grating portion 1b.
  • the diffraction condition of the diffraction grating portion 1b is determined by the wavelength of the light, the pitch of the diffraction grating portion 1b, the refractive index difference between the waveguide portion 1 and the diffraction grating portion 1b, the angle at which the light reaches the diffraction grating portion 1b, and the like. To be done.
  • the light emitted from the light source is projected in a predetermined direction by the optical element to project an image in the field of view of the viewer. Therefore, in HUD, the brightness around the projected image changes greatly depending on the viewing environment, and it is necessary to increase the amount of light from the light source for image projection on a relatively wide area or image where the background is bright. It is also desired to increase the frame rate and display images in a plurality of colors.
  • the present invention has been made in view of the above conventional problems, and an object of the present invention is to provide an image display device capable of achieving weight reduction and improvement in installation flexibility even when using a plurality of light source units. To do.
  • an image display device of the present invention is an image display including a projection optical unit that internally guides light incident from a light incident unit and projects the light in a projection direction from a light emitting unit.
  • An apparatus comprising: a first light source section for irradiating a first light; a second light source section for irradiating a second light; a first fiber section for guiding the first light; and a second light path for guiding the second light.
  • a second fiber section a combining section that is connected to the first fiber section and the second fiber section, and combines the first light and the second light, and the combining section and the light incident section. It is characterized by having a third fiber portion for waveguideing the first light and the second light.
  • the light emitted from the first light source unit and the second light source unit is waveguideed in the first fiber unit and the second fiber unit, respectively, and combined at the combining unit to combine the waves. Since the generated light is incident on the light incident portion from the third fiber portion, it is possible to reduce the weight and improve the degree of freedom of installation even if a plurality of light source portions are used.
  • the wave junction is a fiber coupler.
  • an incident optical portion provided with a lens and a prism is provided between the light emitting end surface of the third fiber portion and the light incident portion.
  • the projection optical unit includes a flat plate-shaped light guide plate made of a translucent material, the one surface side of the light guide plate can be seen through from the other surface side, and the light emitting unit. Projects the first light and the second light onto the one surface side.
  • an image display device capable of reducing weight and improving the degree of freedom of installation even when a plurality of light source units are used.
  • FIG. 4A shows an example using a half mirror
  • FIG. 4B shows an example using a diffraction grating.
  • FIG. 1 is a schematic perspective view showing the configuration of the image display device according to the embodiment.
  • FIG. 2 is a schematic view showing an optical path in the image display device of the present embodiment.
  • the image display device of the present embodiment includes a light guide plate portion 11, a prism 12, a lens 13, a fiber portion 14, and light source portions 15a and 15b.
  • the fiber portion 14 includes an exit side fiber portion 14a, an incident side fiber portions 14b and 14c, and a combine wave portion 14d.
  • the light guide plate portion 11 is a flat plate-shaped member made of a translucent material, and can see through from one surface side to the other surface side, which corresponds to the light guide plate in the present invention.
  • a prism 12 is arranged close to the light incident portion on one end side of the light guide plate portion 11. Further, as shown in FIG. 2, the light guide plate portion 11 has a light emitting portion 11a formed inside the other end side opposite to the prism 12.
  • the light emitting portion 11a is a portion that emits the light traveling inside the light guide plate portion 11 to the eyes of the viewer and transmits the light traveling from the side opposite to the viewer, such as a half mirror or A hologram optical element (HOE: Holographic Optical Element) can be used. Therefore, the light guide plate portion 11 provided with the light emitting portion 11a corresponds to the projection optical portion in the present invention.
  • HOE Holographic Optical Element
  • the prism 12 is an optical element having a triangular cross-section, which is arranged in the vicinity of a light incident portion of the light guide plate portion 11 which makes light incident. Further, a gap is provided between the light guide plate portion 11 and the prism 12.
  • the material constituting the prism 12 is not limited, but in order for the light from the light source portions 15a and 15b to be efficiently incident on the light guide plate portion 11, the refractive indexes of the prism 12 and the light guide plate portion 11 should be about the same. It is preferable to use the same material as the light guide plate portion 11.
  • the lens 13 is an optical element for adjusting the spreading angle of the light emitted from the emitting side fiber portion 14a so as to be incident on the light incident portion of the prism 12 and the light guide plate portion 11, and a collimator lens can be used. ..
  • the prism 12 and the lens 13 correspond to the incident optical unit in the present invention.
  • the fiber unit 14 is an optical element that guides the light emitted from the light source units 15a and 15b, and is composed of a flexible optical fiber.
  • One end of the emitting side fiber portion 14a is connected to the combining portion 14d and the other end of the light emitting end surface is arranged to face the lens 15, and corresponds to the third fiber portion in the present invention.
  • the light incident end faces of the incident side fiber portions 14b and 14c are arranged so as to face the light source portions 15a and 15b, respectively, and the other end is connected to the confluent portion 14d, and the first fiber portion and the first fiber portion in the present invention are connected. It corresponds to two fiber parts.
  • the exit side fiber portion 14a and the incident side fiber portions 14b and 14c are connected, and the light from the incident side fiber portions 14b and 14c is combined or merged to be incident on the exit side fiber portion 14a.
  • It is an optical element.
  • the specific configuration of the merging unit 14d is not limited, and for example, a fiber coupler for merging or merging or a PLC (Planar Lightwave Circuit) combiner can be used.
  • As the multiplexing unit 14d it is preferable to use a fusion type fiber coupler in order to downsize and slim the entire fiber unit 14.
  • the combined wave of light includes both the meaning of a combined wave that combines a plurality of lights into one and the meaning of a combined wave that combines a plurality of lights after branching.
  • the light source units 15a and 15b are members that include a semiconductor laser element and a package and emit light of a predetermined wavelength, and correspond to the first light source unit and the second light source unit in the present invention, respectively.
  • the specific configuration of the light source units 15a and 15b is not limited, and a known CAN type or frame type package can be used.
  • the light source units 15a and 15b may be equipped with a wavelength conversion element or the like to perform wavelength conversion.
  • the wavelengths of the light emitted by the light source units 15a and 15b may be the same or different wavelengths. In particular, by using those that emit different colors as 15a and 15b, it is possible to display images in a plurality of colors, and it is possible to display a color image by emitting and combining the RGB colors.
  • FIGS. 1 and 2 show an example in which two light source units 15a and 15b are provided, a larger number of light source units and an incident side fiber unit may be provided. Also in that case, the light from the plurality of incident side fiber portions is combined by the combine portion 14d, and the incident light L1 is incident on the lens 13 from one exit side fiber portion 14a.
  • the lights emitted from the light source units 15a and 15b are incident on the light incident end faces of the incident side fiber units 14b and 14c, respectively.
  • the lights propagating through the incident side fiber parts 14b and 14c are combined at the combining part 14d, guided inside the emitting side fiber part 14a, and incident on the lens 13 as incident light Lin from the light emitting end face.
  • the incident light Lin is obtained by combining the light from the light source units 15a and 15b at the merging unit 14d, and is incident on the lens 13 from the light emitting end surface of the emitting side fiber portion 14a on a common optical axis.
  • the incident light Lin collimated by the lens 13 enters the light incident portion of the light guide plate portion 11 via the prism 12, is repeatedly reflected inside the light guide plate portion 11, and reaches the light emission portion 11a.
  • the incident light Lin that has reached the light emitting unit 11a is irradiated to the viewer side (projection direction) as the emitted light Lout by the light emitting unit 11a.
  • the viewer superimposes the light emitted from the light emitting portion 11a and the background transmitted through the light guide plate portion 11 and visually recognizes the light.
  • the lights from the plurality of light source units 15a and 15b are combined by the fiber unit 14 and are incident on the light guide plate unit 11 with the same optical axis.
  • the intensity of the light reaching the viewer is the total of the light source units 15a and 15b, so that the image can be displayed with a sufficient amount of light.
  • shift the frame display of the light source units 15a and 15b by a half cycle for example, shift the drawing of 30 FPS by a half cycle to display a smooth moving image at a high frame rate of 60 FPS.
  • the fiber portion 14 has flexibility and the emission side fiber portion 14a can also have a length of several tens of centimeters to several meters, the light source portions 15a and 15b are located away from the projection optical portion. Can be placed.
  • the eyeglass-type projection optical unit to be mounted on the head can be made smaller and lighter, and the light sources 15a and 15b can be mounted at the positions of the chest and waist to improve the wearing feeling of the head.
  • the light source units 15a and 15b can be installed at a position different from the projection optical unit, the light source units 15a and 15b can be installed at a position where heat dissipation can be improved and space can be saved.
  • the degree of freedom of installation is improved by arranging Further, by using a plastic material or the like for the outer skin of the fiber portion 14 and using the fiber portion 14 itself as a temple of eyeglasses, further weight reduction can be achieved.
  • the light emitted from the light source units 15a and 15b is guided by the incident side fiber units 14b and 14c, respectively, and combined at the wave combining unit 14d, and the combined wave is generated. Since the generated light is incident on the light incident portion from the emitting side fiber portion 14a, it is possible to reduce the weight and improve the degree of installation freedom even if a plurality of light source portions 15a and 15b are used.
  • FIG. 3 is a schematic diagram showing the configuration and optical path of the image display device according to this embodiment.
  • the image display device includes a prism 12, a lens 13, a fiber unit 14, light source units 15 a and 15 b, and a projection optical unit 20, and between the prism 12 and the projection optical unit 20. Is provided with a gap 25. Further, the projection optical unit 20 includes a light guide plate unit 21, a diffraction grating unit 22, and a reflective film 23. Note that FIG. 3 schematically shows the structure of the image display device, and the dimensions and angles in the figure do not show the actual size of the image display device.
  • the light guide plate portion 21 is a substantially plate-shaped portion made of a material that transmits light, and includes a side surface 21a, a main surface 21b, a side surface 21c, and a back surface 21d.
  • the material forming the light guide plate portion 21 is not limited, it is preferable to use, for example, glass containing SiO 2 as a main component and having a refractive index of about 1.5.
  • the side surface 21a is a flat surface on which light from the light source portions 15a and 15b is incident, and is formed substantially perpendicular to the main surface 21b.
  • the main surface 21b is a flat surface on which the diffraction grating portion 22 is formed, and faces the back surface 21d.
  • the side surface 21c is a flat surface facing the side surface 21a, and is formed substantially perpendicular to the main surface 21b.
  • the back surface 21d is a flat surface facing the main surface 21b, and is formed so as to be inclined by an angle ⁇ with respect to the main surface 21b.
  • the range of the angle ⁇ is preferably 1 degree or more and 5 degrees or less.
  • FIG. 1 shows an example in which the back surface 21d is inclined so that the side surface 21a side, which is the incident surface of light, is thickened, but the back surface 21d may be inclined so that the side surface 21c side is thickened.
  • the diffraction grating portion 22 is a substantially plate-shaped portion formed on the main surface 21b, is made of a material having a refractive index different from that of the light guide plate portion 21, and corresponds to the light emitting portion in the present invention. ..
  • a plurality of convex portions 22a and concave portions 22b are periodically formed on the surface of the diffraction grating portion 22 to form a diffraction grating.
  • the convex portion 22a and the concave portion 22b of the diffraction grating portion 22 are each formed by extending in a stripe shape in the depth direction of the paper surface.
  • the material constituting the diffraction grating portion 22 is not limited, but it is preferable to use a material having a large difference in refractive index from the light guide plate portion 21, for example, a dielectric having a refractive index of about 2.5 containing TiO 2 as a main component is used. Is preferable.
  • the size of the diffraction grating portion 22 is not particularly limited, but it is preferable that the diffraction grating portion 22 has a thickness capable of guiding light in the in-plane direction.
  • the diffraction grating portion 22 can be formed by a known method, and for example, nanoimprint technology, EBL (Electron Beam Lithografy) technology, or the like can be used.
  • the reflective film 23 is a film having a high reflectance formed so as to cover the side surfaces 21a and 11c and the back surface 21d.
  • An incident opening 23a is formed on a part of the side surface 21a of the reflective film 23, and light can be incident on the light guide plate 21 through the incident opening 23a.
  • the material forming the reflective film 23 is not limited, it is preferably formed by vapor deposition of a high-reflectance metal such as silver.
  • the gap 25 is a space provided between the reflection film 23 formed on the side surface 21 a and the prism 12.
  • the width of the gap 25 is preferably about the wavelength of light.
  • an air layer is interposed in the gap 25, but in order to improve the optical coupling efficiency between the prism 12 and the light guide plate 21, a transparent material having a refractive index close to that of the light guide plate 21 is used.
  • the gap 25 may be filled.
  • FIG. 3 shows an example in which the prism 12 is arranged with a gap 25 between the reflective film 23 and the reflective film 23, the two may be brought into contact with each other without providing the gap 25. Further, the light may be directly incident on the light guide plate portion 21 from the incident opening 23a without using the prism 12.
  • the light emitted by the light source units 15a and 15b is incident on the light incident end faces of the incident side fiber units 14b and 14c, respectively.
  • the lights propagating through the incident side fiber parts 14b and 14c are combined at the combining part 14d, guided inside the emitting side fiber part 14a, and incident on the lens 13 as incident light Lin from the light emitting end face.
  • the incident light Lin is obtained by combining the light from the light source units 15a and 15b at the merging unit 14d, and is incident on the lens 13 from the light emitting end surface of the emitting side fiber portion 14a on a common optical axis.
  • the incident light Lin collimated by the lens 13 enters the light incident portion of the light guide plate portion 21 via the prism 12.
  • the incident light Lin enters one surface of the prism 12, passes through the inside of the prism 12, and exits from the surface on the side of the gap 25 to the gap 25.
  • the incident light Lin is incident substantially perpendicular to the prism 12.
  • the incident light Lin that has passed through the prism 12 is obliquely incident on the side surface 21a of the light guide plate portion 21 through the gap 25 and the incident opening 23a.
  • the width of the gap 25 is approximately the same as the wavelength, light reflection at the interface between the prism 12 and the gap 25 and the interface between the gap 25 and the light guide plate portion 21 is reduced, and the incident light Lin can be emitted with high efficiency. It can be taken into the light guide plate portion 21.
  • the incident light Lin incident from the side surface 21a is incident on the diffraction grating portion 22 at an incident angle ⁇ as the incident light L1 traveling inside the light guide plate portion 21.
  • a part of the incident light L1 is incident on the diffraction grating portion 22, and a part of the incident light is reflected in the light guide plate portion 21 as reflected light.
  • the light that travels in the diffraction grating portion 22 has a traveling angle that changes according to the refractive indices of the light guide plate portion 21 and the diffraction grating portion 22, and an emission angle that satisfies the diffraction condition of the convex portion 22a and the concave portion 22b.
  • the emitted light LO1 is emitted in the ⁇ d1 direction.
  • the light captured in the diffraction grating portion 22 can satisfy the condition of total leakage and total reflection at the interface with air by appropriately selecting the refractive index and the incident angle ⁇ , and in the diffraction grating portion 22. It is repeatedly reflected and propagates in the diffraction grating portion 22.
  • the light reflected at the interface between the light guide plate portion 21 and the diffraction grating portion 22 travels in the light guide plate portion 21, is reflected by the side surface 21c, the back surface 21d, and the side surface 21a, and reaches the main surface 21b again. Then, it is incident on the diffraction grating portion 22 as the re-incident light L2.
  • the back surface 21d is inclined by an angle ⁇ with respect to the main surface 21b, the reflection position of the light reaching the side surface 21a is different from that of the incident opening 23a.
  • the re-incident light L2 that is reflected by the side surface 21a and travels to the main surface 21b is not parallel to the incident light L1 because the traveling angle is different by ⁇ . Therefore, the position and the angle at which the re-incident light L2 is incident on the diffraction grating portion 22 are different from those of the incident light L1.
  • the re-incident light L2 incident on the interface between the light guide plate portion 21 and the diffraction grating portion 22 also partially enters the diffraction grating portion 22 and partially enters the light guide plate portion 21 as reflected light similarly to the incident light L1. Is reflected. Further, the re-incident light L2 traveling inside the diffraction grating portion 22 is emitted as the emitted light LO2 in the emission angle ⁇ d2 direction satisfying the diffraction condition.
  • the light reflected at the interface between the light guide plate portion 21 and the diffraction grating portion 22 travels in the light guide plate portion 21 and is reflected again by the side surface 21c, the back surface 21d, and the side surface 21a. ..
  • the collimated light is repeatedly reflected in the light guide plate portion 21 and reaches the main surface 21b, but the angle of incidence and the position on the main surface 21b are different depending on the number of times the light is reflected by the back surface 21d.
  • the diffraction conditions of the light taken into the diffraction grating portion 22 by repeated reflection are different depending on the number of times reflected by the back surface 21d, and the emission angles are also different.
  • the light obliquely incident on the light guide plate portion 21 changes its diffraction condition due to the reflection on the inclined back surface 21d and is extracted from the surface of the diffraction grating portion 22 at a plurality of emission angles. It is possible to irradiate light from the display device at a wide angle. As a result, the image can be enlarged and projected according to the projection distance from the image display device.
  • the screen may be a non-transmissive white screen or transmissive glass, and for example, a vehicle windshield can be used.
  • the structure and principle of the projection optical unit 20 are different from those of the first embodiment. However, even with the image display device of the present embodiment, it is possible to display an image with a sufficient amount of light. Further, a smooth moving image can be displayed by changing the frame display of the light source units 15a and 15b by a half cycle.
  • the light emitted from the light source units 15a and 15b is guided by the incident side fiber units 14b and 14c, respectively, and combined at the wave combining unit 14d, and the combined light is incident on the light incident portion from the emitting side fiber unit 14a. Therefore, even if a plurality of light source units 15a and 15b are used, it is possible to reduce the weight and improve the installation flexibility.
  • the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne un dispositif d'affichage d'image avec lequel il est possible d'obtenir une réduction de poids et d'améliorer le degré de liberté concernant l'installation même lorsque de multiples unités de source de lumière sont utilisées. Ce dispositif d'affichage d'image est pourvu d'une partie optique de projection qui guide à l'intérieur de celle-ci la lumière entrante (Lin) provenant d'une partie d'incidence de lumière et projette la lumière (Lout) dans une direction de projection à partir d'une partie électroluminescente (11a), le dispositif d'affichage d'image comprenant : une première unité de source de lumière (15a) qui émet une première lumière ; une seconde unité de source de lumière (15b) qui émet une seconde lumière ; une première partie de fibre (14b) pour guider la première lumière ; une deuxième partie de fibre (14c) pour guider la seconde lumière ; une partie de multiplexage (14d) qui est connectée à la première partie de fibre (14b) et à la deuxième partie de fibre (14c) de façon à multiplexer la première lumière et la seconde lumière ; et une troisième partie de fibre (14a) destinée à guider la première lumière et la seconde lumière entre la partie de multiplexage (14d) et la partie d'incidence de lumière
PCT/JP2020/006787 2019-03-05 2020-02-20 Dispositif d'affichage d'image WO2020179470A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-039738 2019-03-05
JP2019039738A JP2020144190A (ja) 2019-03-05 2019-03-05 画像表示装置

Publications (1)

Publication Number Publication Date
WO2020179470A1 true WO2020179470A1 (fr) 2020-09-10

Family

ID=72337905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/006787 WO2020179470A1 (fr) 2019-03-05 2020-02-20 Dispositif d'affichage d'image

Country Status (2)

Country Link
JP (1) JP2020144190A (fr)
WO (1) WO2020179470A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11662526B1 (en) * 2021-12-09 2023-05-30 Visera Technologies Company Ltd. Optical structure
US11662525B1 (en) * 2021-12-09 2023-05-30 Visera Technologies Company Ltd. Optical system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001500629A (ja) * 1996-09-19 2001-01-16 ザ マイクロオプティカル コーポレーション コンパクトディスプレイシステム
JP2016507077A (ja) * 2013-01-15 2016-03-07 マジック リープ， インコーポレイテッド 超高分解能の走査ファイバディスプレイ
JP2017058388A (ja) * 2015-09-14 2017-03-23 セイコーエプソン株式会社 虚像表示装置
US20170208297A1 (en) * 2016-01-20 2017-07-20 Magic Leap, Inc. Polarizing maintaining optical fiber in virtual/augmented reality system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731943B1 (fr) * 2004-03-29 2019-02-13 Sony Corporation Dispositif optique et dispositif de visualisation d'images virtuelles
JP2009145620A (ja) * 2007-12-14 2009-07-02 Konica Minolta Holdings Inc 接合光学素子、接合光学素子の製造方法、映像表示装置およびヘッドマウントディスプレイ
EP3528034A4 (fr) * 2016-10-11 2019-08-21 Sony Corporation Appareil d'affichage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001500629A (ja) * 1996-09-19 2001-01-16 ザ マイクロオプティカル コーポレーション コンパクトディスプレイシステム
JP2016507077A (ja) * 2013-01-15 2016-03-07 マジック リープ， インコーポレイテッド 超高分解能の走査ファイバディスプレイ
JP2017058388A (ja) * 2015-09-14 2017-03-23 セイコーエプソン株式会社 虚像表示装置
US20170208297A1 (en) * 2016-01-20 2017-07-20 Magic Leap, Inc. Polarizing maintaining optical fiber in virtual/augmented reality system

Also Published As

Publication number Publication date
JP2020144190A (ja) 2020-09-10

Similar Documents

Publication Publication Date Title
CN113341566B (zh) 交叠的反射面构造
US10180574B2 (en) Image display apparatus
CN109799613B (zh) 虚像显示装置
JP5720290B2 (ja) 虚像表示装置
JP5742263B2 (ja) 虚像表示装置
US11143872B2 (en) Waveguide and video image display device
KR20180085663A (ko) 광학 시스템 및 헤드-마운트형 디스플레이 장치
JP2012163656A (ja) 虚像表示装置
JP2016085430A (ja) 虚像表示装置
JP2010044172A (ja) 虚像表示装置
WO2020179470A1 (fr) Dispositif d'affichage d'image
JP2012168425A (ja) 虚像表示装置
JP2013061594A (ja) 虚像表示装置及び虚像表示装置の製造方法
JP6024780B2 (ja) 虚像表示装置
CN115004080A (zh) 导光体和虚像显示装置
CN114911095A (zh) 光源装置、显示装置、抬头显示器以及交通设备
JP2022129525A (ja) 画像投影装置
JP6610675B2 (ja) 導光素子、接合光学素子、画像表示装置およびヘッドマウントディスプレイ
JP7380240B2 (ja) 導光部材および虚像表示装置
JP7373292B2 (ja) 光学素子および画像表示装置
CN215769261U (zh) 光源装置、显示装置、抬头显示器以及交通设备
US20230094824A1 (en) Virtual image display apparatus
WO2023011199A1 (fr) Module de dispositif d'affichage, dispositif d'affichage et procédé d'affichage d'image
JP6020624B2 (ja) 虚像表示装置
CN117222934A (zh) 图像显示装置和图像显示方法

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: 20766140

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20766140

Country of ref document: EP

Kind code of ref document: A1