GB1377627A - Beam splitting prisms - Google Patents
Beam splitting prismsInfo
- Publication number
- GB1377627A GB1377627A GB4075671A GB4075671A GB1377627A GB 1377627 A GB1377627 A GB 1377627A GB 4075671 A GB4075671 A GB 4075671A GB 4075671 A GB4075671 A GB 4075671A GB 1377627 A GB1377627 A GB 1377627A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- degrees
- semi
- colour
- prisms
- 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.)
- Expired
Links
- 239000000470 constituent Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
-
- 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
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Color Television Image Signal Generators (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
1377627 Colour-separation systems RANK ORGANISATION Ltd 14 Aug1972 [1 Sept 1971] 40756/71 Heading G2J An apparatus for splitting a beam of light into three colour constituents G, R, B, comprises a plane colour-selective dichroic semi-reflector 2b inclined at α to the normal to the beam, a second plane colour-selective dichroic semi-reflector 3b inclined at # to the normal to the beam transmitted from 2b, a single total reflector 5b receiving the reflected beam from 3b, and at least one total reflector 2a receiving the reflected beam from 2b, the arrangement of parts being such that the beams G, R, B, undergo either zero or an even number of reflections. The beam B which has been reflected at 5b is preferably parallel to the axis of the transmitted beam R. The angle α is less than 30 degrees, and # must lie between 20 and 50 degrees and be greater than α; it is preferably between 30 and 45 degrees. The semi-reflectors 2b, 3b are formed on the rear faces of main prisms 2, 3, further prisms 4, 5 being provided en route to the receptors R 1 B 1 , and an entrance prism 1 is spaced by a small air gap at an angle # the beam, from the prism 2, thus reducing the angle of incidence at the semi-reflector 2b. The prisms 1, 5 may be omitted, see Fig.2 (not shown) and then # = 45 degrees. In both embodiments the beams G, R, B, lie in the same plane, but in another embodiment, Figs. 3A, 3B (not shown) the pnsms 1, 2, and the semi-reflector 2b, and the front surface 3a of the prism 3 are turned through 90 degrees about the incident axis, so that the beam G is normal to the plane containing B and R.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4075671A GB1377627A (en) | 1971-09-01 | 1971-09-01 | Beam splitting prisms |
| US00278216A US3802763A (en) | 1971-09-01 | 1972-08-07 | Beam splitting prisms |
| NL7211784A NL7211784A (en) | 1971-09-01 | 1972-08-30 | |
| JP47087854A JPS4837141A (en) | 1971-09-01 | 1972-09-01 | |
| DE2243036A DE2243036A1 (en) | 1971-09-01 | 1972-09-01 | METHOD AND EQUIPMENT FOR COLOR DETACHING A BEAM OF LIGHT |
| FR7231139A FR2151091A1 (en) | 1971-09-01 | 1972-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4075671A GB1377627A (en) | 1971-09-01 | 1971-09-01 | Beam splitting prisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1377627A true GB1377627A (en) | 1974-12-18 |
Family
ID=10416468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4075671A Expired GB1377627A (en) | 1971-09-01 | 1971-09-01 | Beam splitting prisms |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3802763A (en) |
| JP (1) | JPS4837141A (en) |
| DE (1) | DE2243036A1 (en) |
| FR (1) | FR2151091A1 (en) |
| GB (1) | GB1377627A (en) |
| NL (1) | NL7211784A (en) |
Cited By (1)
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|---|---|---|---|---|
| CN112909725A (en) * | 2021-01-13 | 2021-06-04 | 华中科技大学 | Star-reflection-based blue light semiconductor laser wavelength beam combining device and method |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1474699A (en) * | 1973-12-11 | 1977-05-25 | Rank Organisation Ltd | Beam splitting prism assembly |
| NL7400148A (en) * | 1974-01-07 | 1975-07-09 | Philips Nv | COLOR SPLITTING PRISM SYSTEM WITH SOME SURFACES THAT LIMITS ON DICHROITIC LAYERS. |
| US4161349A (en) * | 1978-03-13 | 1979-07-17 | Recognition Equipment Incorporated | Beam separating prism system |
| US4268119A (en) * | 1979-01-22 | 1981-05-19 | Bell & Howell Company | Color-separating optical system |
| US4264922A (en) * | 1980-02-11 | 1981-04-28 | Polaroid Corporation | Optical arrangement for developing fundamental primary colors |
| JPS5785019A (en) * | 1980-11-18 | 1982-05-27 | Nippon Kogaku Kk <Nikon> | Lighting device |
| NL8006609A (en) | 1980-12-04 | 1982-07-01 | Philips Nv | TELEVISION CAMERA EQUIPPED WITH A COLOR SPLITTING SYSTEM BEHIND THE OBJECTIVE. |
| US5086338A (en) * | 1988-11-21 | 1992-02-04 | Canon Kabushiki Kaisha | Color television camera optical system adjusting for chromatic aberration |
| JP4495949B2 (en) * | 2003-11-14 | 2010-07-07 | 富士フイルム株式会社 | Two-plate color solid-state imaging device and digital camera |
| US7300156B2 (en) * | 2004-12-16 | 2007-11-27 | Hewlett-Packard Development Company, L.P. | Prism assembly for separating light |
| US7281804B2 (en) * | 2004-12-16 | 2007-10-16 | Hewlett-Packard Development Company, L.P. | Prism assembly for separating light |
| US10073264B2 (en) | 2007-08-03 | 2018-09-11 | Lumus Ltd. | Substrate-guide optical device |
| IL166799A (en) * | 2005-02-10 | 2014-09-30 | Lumus Ltd | Substrate-guided optical device utilizing beam splitters |
| US10261321B2 (en) | 2005-11-08 | 2019-04-16 | Lumus Ltd. | Polarizing optical system |
| JP5066420B2 (en) * | 2007-09-28 | 2012-11-07 | 富士フイルム株式会社 | Color separation optical system and imaging apparatus |
| US7961398B2 (en) * | 2008-03-05 | 2011-06-14 | Contrast Optical Design & Engineering, Inc. | Multiple image camera and lens system |
| JP5631299B2 (en) | 2008-03-28 | 2014-11-26 | コントラスト オプティカル デザイン アンド エンジニアリング，インク． | Full beam image splitter system |
| JP2013504940A (en) * | 2009-09-10 | 2013-02-07 | コントラスト オプティカル デザイン アンド エンジニアリング，インク． | Full beam image splitter system |
| JP5484258B2 (en) * | 2010-08-24 | 2014-05-07 | 富士フイルム株式会社 | Color separation optical system |
| DE112012005150B4 (en) * | 2011-12-09 | 2021-01-21 | Panasonic I-Pro Sensing Solutions Co., Ltd. | Three-chip camera device |
| IL232197B (en) | 2014-04-23 | 2018-04-30 | Lumus Ltd | Compact head-mounted display system |
| IL235642B (en) | 2014-11-11 | 2021-08-31 | Lumus Ltd | Compact head-mounted display system protected by a hyperfine structure |
| US10257393B2 (en) | 2016-02-12 | 2019-04-09 | Contrast, Inc. | Devices and methods for high dynamic range video |
| US10264196B2 (en) | 2016-02-12 | 2019-04-16 | Contrast, Inc. | Systems and methods for HDR video capture with a mobile device |
| AU2017308749A1 (en) | 2016-08-09 | 2019-02-21 | Contrast, Inc. | Real-time HDR video for vehicle control |
| EP3540484B1 (en) | 2016-10-09 | 2020-11-04 | Lumus Ltd. | Aperture multiplier using a rectangular waveguide |
| CN113031165B (en) | 2016-11-08 | 2023-06-02 | 鲁姆斯有限公司 | Light guide device, optical component thereof and corresponding production method |
| KR102751421B1 (en) | 2017-02-22 | 2025-01-07 | 루머스 리미티드 | Light guide optical assembly |
| CN117572644A (en) | 2017-03-22 | 2024-02-20 | 鲁姆斯有限公司 | Methods and optical systems for producing light guide optical elements |
| IL251645B (en) | 2017-04-06 | 2018-08-30 | Lumus Ltd | Light-guide optical element and method of its manufacture |
| WO2019014057A1 (en) | 2017-07-10 | 2019-01-17 | Contrast, Inc. | STEREOSCOPIC CAMERA |
| US10551544B2 (en) | 2018-01-21 | 2020-02-04 | Lumus Ltd. | Light-guide optical element with multiple-axis internal aperture expansion |
| WO2019224764A1 (en) | 2018-05-23 | 2019-11-28 | Lumus Ltd. | Optical system including light-guide optical element with partially-reflective internal surfaces |
| US10951888B2 (en) | 2018-06-04 | 2021-03-16 | Contrast, Inc. | Compressed high dynamic range video |
| WO2020036957A1 (en) | 2018-08-14 | 2020-02-20 | Contrast, Inc. | Image compression |
| KR20250067958A (en) | 2018-09-09 | 2025-05-15 | 루머스 리미티드 | Optical systems including light-guide optical elements with two-dimensional expansion |
| CN116300087A (en) | 2019-01-24 | 2023-06-23 | 鲁姆斯有限公司 | Optical system including LOE with three-stage expansion |
| WO2020174433A1 (en) | 2019-02-28 | 2020-09-03 | Lumus Ltd. | Compact collimated image projector |
| TWI884885B (en) | 2019-04-15 | 2025-05-21 | 以色列商魯姆斯有限公司 | Method of fabricating a light-guide optical element |
| BR112021022229A2 (en) | 2019-06-27 | 2022-02-22 | Lumus Ltd | Device |
| IL309979A (en) | 2019-07-04 | 2024-03-01 | Lumus Ltd | Figure waveguide with symmetric light beam multiplication |
| JP7592326B2 (en) | 2019-07-18 | 2024-12-02 | ルムス エルティーディー． | Encapsulated Light Guide Optical Elements |
| AU2020395978B2 (en) | 2019-12-05 | 2025-09-04 | Lumus Ltd. | Light-guide optical element employing complementary coated partial reflectors, and light-guide optical element having reduced light scattering |
| EP4042232B1 (en) | 2019-12-08 | 2025-02-19 | Lumus Ltd. | Optical systems with compact image projector |
| KR20220118470A (en) | 2019-12-30 | 2022-08-25 | 루머스 리미티드 | Optical system comprising a two-dimensional extended light guide optical element |
| IL294538B2 (en) | 2020-02-24 | 2025-12-01 | Lumus Ltd | Integrates mixed reality |
| CN118605021A (en) | 2020-05-24 | 2024-09-06 | 鲁姆斯有限公司 | Optical system and method for manufacturing the same |
| AU2021279462B2 (en) | 2020-05-24 | 2023-06-08 | Lumus Ltd. | Method of fabrication of compound light-guide optical elements |
| WO2021245664A1 (en) | 2020-06-01 | 2021-12-09 | Lumus Ltd. | Virtual image delivery system for near eye displays |
| EP4022382B1 (en) | 2020-08-23 | 2023-10-25 | Lumus Ltd. | Optical system for two-dimensional expansion of an image reducing glints and ghosts from the waveduide |
| CN115885215A (en) | 2020-08-26 | 2023-03-31 | 鲁姆斯有限公司 | Color image generation using white light as a source |
| WO2022044019A1 (en) | 2020-08-30 | 2022-03-03 | Lumus Ltd. | Reflective slm image projector with intermediate image plane |
| DE202021104723U1 (en) | 2020-09-11 | 2021-10-18 | Lumus Ltd. | Image projector coupled to an optical light guide element |
| TWI839642B (en) | 2020-10-01 | 2024-04-21 | 以色列商魯姆斯有限公司 | Optical beam multiplier and optical system for directing an image towards a user for viewing |
| WO2022180634A1 (en) | 2021-02-25 | 2022-09-01 | Lumus Ltd. | Optical aperture multipliers having a rectangular waveguide |
| CN116635773B (en) | 2021-03-01 | 2025-06-13 | 鲁姆斯有限公司 | Optical system with compact coupling from projector into waveguide |
| US11822088B2 (en) | 2021-05-19 | 2023-11-21 | Lumus Ltd. | Active optical engine |
| CN117396792B (en) | 2021-07-04 | 2025-02-25 | 鲁姆斯有限公司 | Display with stacked light guide elements providing different portions of a field of view |
| EP4374204B1 (en) | 2021-08-23 | 2025-02-12 | Lumus Ltd. | Methods of fabrication of compound light-guide optical elements having embedded coupling-in reflectors |
| EP4573404A4 (en) | 2022-08-18 | 2025-12-10 | Lumus Ltd | IMAGE PROJECTOR WITH POLARIZING CATADIOPTRIC COLLIMATOR |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL254460A (en) * | 1960-08-02 | |||
| FR1494998A (en) * | 1966-08-05 | 1967-09-15 | Optique Prec Soc D | Optical beam splitter for color television |
| NL6814536A (en) * | 1967-10-13 | 1969-04-15 | ||
| US3534158A (en) * | 1968-09-30 | 1970-10-13 | Bell Telephone Labor Inc | Single pickup tube color television camera system |
| GB1252100A (en) * | 1969-05-14 | 1971-11-03 |
-
1971
- 1971-09-01 GB GB4075671A patent/GB1377627A/en not_active Expired
-
1972
- 1972-08-07 US US00278216A patent/US3802763A/en not_active Expired - Lifetime
- 1972-08-30 NL NL7211784A patent/NL7211784A/xx unknown
- 1972-09-01 FR FR7231139A patent/FR2151091A1/fr not_active Withdrawn
- 1972-09-01 JP JP47087854A patent/JPS4837141A/ja active Pending
- 1972-09-01 DE DE2243036A patent/DE2243036A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909725A (en) * | 2021-01-13 | 2021-06-04 | 华中科技大学 | Star-reflection-based blue light semiconductor laser wavelength beam combining device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| US3802763A (en) | 1974-04-09 |
| NL7211784A (en) | 1973-03-05 |
| DE2243036A1 (en) | 1973-03-08 |
| FR2151091A1 (en) | 1973-04-13 |
| JPS4837141A (en) | 1973-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |