JP7325427B2 - 射出瞳拡大器 - Google Patents
射出瞳拡大器 Download PDFInfo
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- JP7325427B2 JP7325427B2 JP2020543542A JP2020543542A JP7325427B2 JP 7325427 B2 JP7325427 B2 JP 7325427B2 JP 2020543542 A JP2020543542 A JP 2020543542A JP 2020543542 A JP2020543542 A JP 2020543542A JP 7325427 B2 JP7325427 B2 JP 7325427B2
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- 210000001747 pupil Anatomy 0.000 title claims description 9
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
-
- 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
- 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
- G02B27/0103—Head-up displays characterised by optical features comprising holographic 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
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
-
- 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
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4272—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
- G02B6/10—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
- G02B6/124—Geodesic lenses or integrated gratings
-
- 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
- G02B2027/0174—Head mounted characterised by optical features holographic
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Description
Claims (8)
- 画像を表示するための回折ディスプレイ素子であって、
導波路と、
導波路の本体内に、画像を回折により結合するための入結合領域と、
前記導波路の本体から出るように、前記画像を回折により結合するための出結合領域と、
前記出結合領域の前記画像の射出瞳を拡大するための、前記入結合領域と前記出結合領域の間の射出瞳拡大器(EPE)領域と
を備え、
前記EPE領域が、導波路の表面に配置された複数の回折ゾーン、及び前記回折ゾーン同士間の複数の非回折ゾーンを備え、
前記EPE領域が、少なくとも10個の異なる回折ゾーン、及び少なくとも10個の異なる非回折ゾーンを含み、前記回折ゾーン及び非回折ゾーンが、第1の方向の2つの回折ゾーン間に少なくとも1つの第1の非回折ゾーンが位置決めされ、前記第1の方向に直交する第2の方向の2つの回折ゾーン間に少なくとも1つの第2の非回折ゾーンが位置決めされるように配置され、
前記回折ゾーン及び前記非回折ゾーンは、不規則な又は規則的な2次元のパターンとして配置され、
各々の前記回折ゾーン間で、格子線の向き及び格子の周期が同じであり、
微小特徴部の曲線因子、及び/又は、高さを含む、微小特徴部のプロファイルのうちの少なくとも1つが、各々の前記回折ゾーン間で異なっており、
前記回折ゾーンの少なくとも1つは、矩形の単位ゾーン又は中に単位格子線のない任意の形状のゾーンであり、
前記回折ゾーン及び前記非回折ゾーンのうちの少なくとも1つは、傾斜又は湾曲した外側形状を有する、回折ディスプレイ素子。 - サイズ又は形状の異なる少なくとも2つの回折ゾーン及び/又は少なくとも2つの非回折ゾーンを備える、請求項1に記載の回折ディスプレイ素子。
- 前記回折ゾーンが、格子特性の異なる少なくとも2つの格子ゾーンを備える、請求項1又は2に記載の回折ディスプレイ素子。
- 前記回折ゾーン及び非回折ゾーンが、前記導波路の表面平面において、等しい形状の単位ゾーンに分割可能である、請求項1から3までのいずれか一項に記載の回折ディスプレイ素子。
- 前記EPEの全面積の少なくとも20%が、非回折ゾーンから形成される、請求項1から4までのいずれか一項に記載の回折ディスプレイ素子。
- 前記入結合領域から入射する光の少なくとも大半が、少なくとも1つの回折ゾーンによって回折され、少なくとも1つの非回折ゾーンにおいて内部全反射によって跳ね返り、前記1つの回折ゾーンとは異なる少なくとも1つの回折ゾーンによって再び回折されてから、前記出結合領域に向かって前記EPEを出るように、前記EPE領域の前記回折ゾーン及び非回折ゾーンが構成されている、請求項1から5までのいずれか一項に記載の回折ディスプレイ素子。
- 前記非回折ゾーンが回折ゾーンに置き換えられた状況と比べて、前記ディスプレイ素子の輝度、均一性、又は色バランスを向上させるために、前記EPE領域の前記非回折ゾーンが設けられる、請求項1から6までのいずれか一項に記載の回折ディスプレイ素子。
- 請求項1から7までのいずれか一項に記載の回折ディスプレイ素子を備えるパーソナル・ディスプレイ・デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20185291A FI128837B (en) | 2018-03-28 | 2018-03-28 | Outlet pupil dilator |
FI20185291 | 2018-03-28 | ||
PCT/FI2019/050130 WO2019185973A1 (en) | 2018-03-28 | 2019-02-19 | Exit pupil expander |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021517265A JP2021517265A (ja) | 2021-07-15 |
JP7325427B2 true JP7325427B2 (ja) | 2023-08-14 |
Family
ID=68058587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020543542A Active JP7325427B2 (ja) | 2018-03-28 | 2019-02-19 | 射出瞳拡大器 |
Country Status (9)
Country | Link |
---|---|
US (1) | US11892623B2 (ja) |
EP (1) | EP3732528A4 (ja) |
JP (1) | JP7325427B2 (ja) |
KR (1) | KR20200135770A (ja) |
CN (1) | CN111656257B (ja) |
CA (1) | CA3087650A1 (ja) |
FI (1) | FI128837B (ja) |
SG (1) | SG11202008104WA (ja) |
WO (1) | WO2019185973A1 (ja) |
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2018
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-
2019
- 2019-02-19 SG SG11202008104WA patent/SG11202008104WA/en unknown
- 2019-02-19 US US17/041,302 patent/US11892623B2/en active Active
- 2019-02-19 CN CN201980010104.1A patent/CN111656257B/zh active Active
- 2019-02-19 EP EP19778258.4A patent/EP3732528A4/en active Pending
- 2019-02-19 WO PCT/FI2019/050130 patent/WO2019185973A1/en unknown
- 2019-02-19 CA CA3087650A patent/CA3087650A1/en active Pending
- 2019-02-19 KR KR1020207023668A patent/KR20200135770A/ko not_active Application Discontinuation
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Patent Citations (5)
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WO2019185973A1 (en) | 2019-10-03 |
EP3732528A4 (en) | 2021-09-22 |
SG11202008104WA (en) | 2020-09-29 |
KR20200135770A (ko) | 2020-12-03 |
CN111656257A (zh) | 2020-09-11 |
US11892623B2 (en) | 2024-02-06 |
JP2021517265A (ja) | 2021-07-15 |
FI128837B (en) | 2021-01-15 |
EP3732528A1 (en) | 2020-11-04 |
CN111656257B (zh) | 2022-04-12 |
US20210072534A1 (en) | 2021-03-11 |
CA3087650A1 (en) | 2019-10-03 |
FI20185291A1 (en) | 2019-09-29 |
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