JP7378215B2 - 光導波装置及び表示器 - Google Patents
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- JP7378215B2 JP7378215B2 JP2019057758A JP2019057758A JP7378215B2 JP 7378215 B2 JP7378215 B2 JP 7378215B2 JP 2019057758 A JP2019057758 A JP 2019057758A JP 2019057758 A JP2019057758 A JP 2019057758A JP 7378215 B2 JP7378215 B2 JP 7378215B2
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- 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
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
-
- 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
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/34—Optical coupling means utilising prism or grating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/147—Optical correction of image distortions, e.g. keystone
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Couplings Of Light Guides (AREA)
- Projection Apparatus (AREA)
- Optical Integrated Circuits (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Description
110、210:光導波素子
120、140、150、160、320、920:光回収素子
130、230:光学構造
212、312:第一光導波シート
214、314:第二光導波シート
316:第三光導波シート
322、324、326:光学膜層
970:保護素子
1001、1002:表示器
1010:投影装置
1020:投射目標
S1:第一表面
S2:第二表面
L1:入射光
L2、L3、L5、L6:回折光
L4:回収光
X:第一軸方向
Y:第二軸方向
Z:光伝播方向
Claims (7)
- 光導波装置であって、
第一表面及び前記第一表面に対向する第二表面を含む光導波素子であって、前記第一表面は、第一光学構造及び平面領域を含み、前記第二表面は、第二光学構造を含み、かつ入射光が前記第一表面の前記平面領域から前記光導波素子に入って前記第二表面の前記第二光学構造に伝播する、光導波素子;及び
前記入射光の伝播径路に位置する光回収素子であって、前記第二表面の前記第二光学構造は、前記光回収素子と、前記第一表面の前記平面領域との間に配置され、前記入射光は、前記第二表面の第二光学構造を経由して前記光回収素子に伝播し、前記光回収素子は、前記入射光の伝播方向を変更することで回収光を生成し、前記回収光及び一部の前記入射光は、前記第二表面の前記第二光学構造によって前記光導波素子に入って前記第一表面の前記第一光学構造に伝播し、前記一部の前記入射光及び前記回収光は、前記第一表面の前記第一光学構造によって伝播して前記光導波素子を離れる、光回収素子を含む、光導波装置。 - 請求項1に記載の光導波装置であって、
前記第二光学構造は、前記光導波素子の前記第二表面に設置され、前記入射光は、前記第一表面から前記第二表面に伝播し、かつ前記第二光学構造で反射型回折が生じて前記一部の前記入射光を生成し、前記一部の前記入射光は、前記光導波素子の中で伝播し、前記回収光は、前記第二表面から前記光導波素子に進入する、光導波装置。 - 請求項1に記載の光導波装置であって、
前記光回収素子は、反射鏡、バンドパスフィルタ、ダイクロイックミラー、回折素子及び平面光学素子のうちから選択される1つである、光導波装置。 - 請求項1に記載の光導波装置であって、
前記光回収素子は、光学膜層を含み、前記光学膜層は、前記第二光学構造の表面に配置される、光導波装置。 - 請求項1に記載の光導波装置であって、
前記光導波素子は、単一の光導波シートを含み、前記第一表面及び前記第二表面は、前記単一の光導波シートの対向する2つの表面である、光導波装置。 - 請求項1に記載の光導波装置であって、
保護素子をさらに含み、
前記保護素子は、前記光導波素子の前記第二表面の側辺に設置され、前記光回収素子は、前記光導波素子と前記保護素子との間に設置される、光導波装置。 - 映像光束を投射目標に投射するための表示器であって、
前記表示器は、投影装置及び光導波装置を含み、
前記投影装置は、入射光を投射し、前記入射光は、前記映像光束であり、
前記光導波装置は、光導波素子及び光回収素子を含み、
前記光導波素子は、第一表面及び前記第一表面に対向する第二表面を含み、前記第一表面は、第一光学構造及び平面領域を含み、前記第二表面は、第二光学構造を含み、かつ前記入射光は、前記第一表面の前記平面領域から前記光導波素子に入って前記第二表面の前記第二光学構造に伝播し、
前記光回収素子は、前記入射光の伝播径路に位置し、前記第二表面の前記第二光学構造は、前記光回収素子と、前記第一表面の前記平面領域との間に配置され、前記入射光は、前記第二表面の前記第二光学構造を経由して前記光回収素子に伝播し、前記光回収素子は、前記入射光の伝播方向を変更することで回収光を生成し、前記回収光及び一部の前記入射光は、前記第二表面の前記第二光学構造によって前記光導波素子に入って前記第一表面の前記第一光学構造に伝播し、前記一部の前記入射光及び前記回収光は、前記第一表面の前記第一光学構造によって前記投射目標に伝播する、表示器。
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CN201810297008.7 | 2018-03-30 | ||
CN201810297008.7A CN110320588A (zh) | 2018-03-30 | 2018-03-30 | 光波导装置及显示器 |
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EP (1) | EP3547008A1 (ja) |
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US20190302358A1 (en) | 2019-10-03 |
CN110320588A (zh) | 2019-10-11 |
JP2019185037A (ja) | 2019-10-24 |
EP3547008A1 (en) | 2019-10-02 |
US10871613B2 (en) | 2020-12-22 |
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