KR102679655B1 - 회절 도파관 소자 및 회절 도파관 디스플레이 - Google Patents
회절 도파관 소자 및 회절 도파관 디스플레이 Download PDFInfo
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- KR102679655B1 KR102679655B1 KR1020207019839A KR20207019839A KR102679655B1 KR 102679655 B1 KR102679655 B1 KR 102679655B1 KR 1020207019839 A KR1020207019839 A KR 1020207019839A KR 20207019839 A KR20207019839 A KR 20207019839A KR 102679655 B1 KR102679655 B1 KR 102679655B1
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- 238000010168 coupling process Methods 0.000 claims abstract description 59
- 238000005859 coupling reaction Methods 0.000 claims abstract description 59
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 230000001902 propagating effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 210000001747 pupil Anatomy 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010344 pupil dilation Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
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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
-
- 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
-
- 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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
-
- 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
- G02B27/42—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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1828—Diffraction gratings having means for producing variable diffraction
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- 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
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- 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
-
- 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
- G02B6/0028—Light guide, e.g. taper
-
- 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
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
도 2A 내지 도 2C는 본 발명의 실시 양태에 따른 3개의 상이한 종류의 광선 배수기 소자를 갖는 도파관의 측 단면도를 도시한다.
도 3은 본 발명의 일 실시 양태에 따른 도파관의 평면도를 도시한다.
Claims (15)
- 개인용 디스플레이 기구를 위한 회절 도파관 소자로서,
상기 소자는:
- 도파관 평면 내에서 연장되는 디스플레이 도파관,
- 광선을 상기 디스플레이 도파관 내로 회절 커플링하기 위해 상기 디스플레이 도파관 상에 또는 상기 디스플레이 도파관 내에 배치된 인-커플링(in-coupling) 회절 광학 소자로서, 상기 커플링된 광선은 전파 홉 길이(propagation hop length)로 상기 디스플레이 도파관 내에서 전파되는, 상기 인-커플링 회절 광학 소자,
- 상기 디스플레이 도파관 밖으로 회절 커플링된 광선을 커플링하기 위해 상기 디스플레이 도파관 상에 또는 상기 디스플레이 도파관 내에 배치된 아웃-커플링(out-coupling) 회절 광학 소자,
- 상기 아웃-커플링 회절 광학 소자 상류의 광선 배수기(multiplier) 소자로서, 상기 광선 배수기 소자는 상기 인-커플링 회절 광학 소자로 입사하는 광선을 적어도 하나의 차원에서 상기 도파관 평면 내에서 공간적으로 변위된(displaced) 복수의 평행한 광선으로 분할할 수 있고, 입사광의 전파 방향(direction of propagation)으로 상기 복수의 평행한 광선의 공간적 변위는 상기 홉 길이보다 작은, 상기 광선 배수기 소자를 포함하는 회절 도파관 소자에 있어서,
- 상기 광선 배수기 소자가, 상기 디스플레이 도파관보다 작은 두께를 갖고 상기 인-커플링 회절 광학 소자의 상류에 그와 정렬하여 배치된 배수기 도파관을 포함하는 것 및
- 상기 광선 배수기 소자가, 상기 디스플레이 도파관의 대향하는 표면 및 상기 인-커플링 회절 광학 소자에 의해 상기 도파관 내로 회절된 광의 전파 경로 상에 배치된 2개의 회절 격자를 갖는 상기 디스플레이 도파관 내의 일 구역(zone)이고, 상기 디스플레이 도파관에서 커플링된 광선을 인-커플링 회절 광학 소자에 의해 분할하기 위해 상기 인-커플링 회절 광학 소자의 하류에 배치된 것 중 정확하게 하나를 특징으로 하는,
회절 도파관 소자. - 제1항에 있어서,
상기 광선 배수기 소자가 입사 광선을 상기 홉 길이 내에서 적어도 2개의 변위된 빔으로 배수화하도록 구성된,
회절 도파관 소자. - 제1항에 있어서,
상기 광선 배수기 소자가 상기 인-커플링 회절 광학 소자로 입사하는 각각의 광선을 2개의 차원에서 복수의 평행한 광선으로 분할하도록 구성된,
회절 도파관 소자. - 제1항에 있어서,
상기 광선 배수기 소자가 입사 광선의 미리 결정된 입사 각도를 초과해서만 상기 광선을 분할하도록 구성된,
회절 도파관 소자. - 제1항에 있어서,
상기 광선 배수기 소자가 상기 입사 광선의 적어도 2개의 상이한 입사 각도를 위해 적어도 2개의 상이한 배수화 인수(multiplication factor)를 각각 제공하도록 구성된,
회절 도파관 소자. - 회절 도파관 디스플레이에 있어서,
- 제1항에 따른 회절 도파관 소자,
- 복수의 레이저 광선을 상기 인-커플링 회절 광학 소자 상으로 투영하도록 구성된 이미지 프로젝터로서, 상기 광선이 상기 광선 배수기 소자 내에서 공간적으로 배수화되는, 상기 이미지 프로젝터를 포함하는,
회절 도파관 소자. - 제6항에 있어서,
상기 이미지 프로젝터는 레이저 프로젝터인,
회절 도파관 소자. - 제7항에 있어서,
상기 레이저 프로젝터는 상기 인-커플링 회절 광학 소자 상으로 상이한 각도로 상기 복수의 광선을 제공하기 위해 미세전자기계(microelectromechanical) 미러를 포함하는,
회절 도파관 소자.
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20176161A FI129400B (en) | 2017-12-22 | 2017-12-22 | Diffractive waveguide element and diffractive waveguide display |
FI20176161 | 2017-12-22 | ||
PCT/FI2018/050905 WO2019122508A1 (en) | 2017-12-22 | 2018-12-11 | Diffractive waveguide element and diffractive waveguide display |
Publications (2)
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KR20200105670A KR20200105670A (ko) | 2020-09-08 |
KR102679655B1 true KR102679655B1 (ko) | 2024-06-28 |
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KR1020207019839A Active KR102679655B1 (ko) | 2017-12-22 | 2018-12-11 | 회절 도파관 소자 및 회절 도파관 디스플레이 |
Country Status (9)
Country | Link |
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US (1) | US11846787B2 (ko) |
EP (1) | EP3710883B1 (ko) |
JP (1) | JP7227253B2 (ko) |
KR (1) | KR102679655B1 (ko) |
CN (1) | CN111492303B (ko) |
CA (1) | CA3087321A1 (ko) |
ES (1) | ES2926852T3 (ko) |
FI (1) | FI129400B (ko) |
WO (1) | WO2019122508A1 (ko) |
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EP3710883A1 (en) | 2020-09-23 |
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JP2021508075A (ja) | 2021-02-25 |
ES2926852T3 (es) | 2022-10-31 |
CN111492303A (zh) | 2020-08-04 |
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