GB1377627A – Beam splitting prisms
– Google Patents
GB1377627A – Beam splitting prisms
– Google Patents
Beam splitting prisms
Info
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
1971-09-01
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
Application number
GB4075671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rank Organization Ltd
Original Assignee
Rank Organization Ltd
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.)
1971-09-01
Filing date
1971-09-01
Publication date
1974-12-18
1971-09-01
Application filed by Rank Organization Ltd
filed
Critical
Rank Organization Ltd
1971-09-01
Priority to GB4075671A
priority
Critical
patent/GB1377627A/en
1972-08-07
Priority to US00278216A
priority
patent/US3802763A/en
1972-08-30
Priority to NL7211784A
priority
patent/NL7211784A/xx
1972-09-01
Priority to JP47087854A
priority
patent/JPS4837141A/ja
1972-09-01
Priority to DE2243036A
priority
patent/DE2243036A1/en
1972-09-01
Priority to FR7231139A
priority
patent/FR2151091A1/fr
1974-12-18
Publication of GB1377627A
publication
Critical
patent/GB1377627A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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.
GB4075671A
1971-09-01
1971-09-01
Beam splitting prisms
Expired
GB1377627A
(en)
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)
* Cited by examiner, † Cited by third party
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
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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
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*
1980-11-18
1982-05-27
Nippon Kogaku Kk
Lighting device
US5086338A
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*
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
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*
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
WO2009111642A1
(en)
*
2008-03-05
2009-09-11
Contrast Optical Design & Engineering, Inc.
Multiple image camera and lens system
US8320047B2
(en)
*
2008-03-28
2012-11-27
Contrast Optical Design & Engineering, Inc.
Whole beam image splitting system
US8441732B2
(en)
*
2008-03-28
2013-05-14
Michael D. Tocci
Whole beam image splitting 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
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2014-11-11
2021-08-31
Lumus Ltd
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US10264196B2
(en)
2016-02-12
2019-04-16
Contrast, Inc.
Systems and methods for HDR video capture with a mobile device
US10257394B2
(en)
2016-02-12
2019-04-09
Contrast, Inc.
Combined HDR/LDR video streaming
AU2017308749A1
(en)
2016-08-09
2019-02-21
Contrast, Inc.
Real-time HDR video for vehicle control
CN113156647B
(en)
2016-10-09
2023-05-23
鲁姆斯有限公司
Optical device
KR102310397B1
(en)
2016-11-08
2021-10-08
루머스 리미티드
Light guiding device with optical cut-off edge and method for manufacturing the same
EP3397998A4
(en)
2017-02-22
2019-04-17
Lumus Ltd.
Light guide optical assembly
KR102319611B1
(en)
2017-03-22
2021-11-01
루머스 리미티드
nested facets
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
MX2020012512A
(en)
2018-05-23
2021-02-16
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
AU2019335612A1
(en)
2018-09-09
2021-04-08
Lumus Ltd.
Optical systems including light-guide optical elements with two-dimensional expansion
CN113330348B
(en)
2019-01-24
2023-01-24
鲁姆斯有限公司
Optical system including an LOE with three-stage expansion
JP2023504611A
(en)
2019-12-05
2023-02-06
ルーマス リミテッド
Light-directing optics with complementary coated partial reflectors and light-directing optics with reduced light scattering
US11523092B2
(en)
2019-12-08
2022-12-06
Lumus Ltd.
Optical systems with compact image projector
US11630260B2
(en)
2020-05-24
2023-04-18
Lumus Ltd.
Production method and corresponding structures of compound light-guide optical elements
DE202021104723U1
(en)
2020-09-11
2021-10-18
Lumus Ltd.
Image projector coupled to an optical light guide element
AU2022226493B2
(en)
2021-02-25
2023-07-27
Lumus Ltd.
Optical aperture multipliers having a rectangular waveguide
CN116783539A
(en)
2021-05-19
2023-09-19
鲁姆斯有限公司
Active optical engine
TW202307518A
(en)
2021-07-04
2023-02-16
以色列商魯姆斯有限公司
Display with stacked light-guide elements providing different parts of field of view
Family Cites Families (5)
* Cited by examiner, † Cited by third party
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
GB1240695A
(en)
*
1967-10-13
1971-07-28
Nippon Electric Co
Improvements in or relating to optical systems for tricolour separation
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
JP
JP47087854A
patent/JPS4837141A/ja
active
Pending
1972-09-01
FR
FR7231139A
patent/FR2151091A1/fr
not_active
Withdrawn
1972-09-01
DE
DE2243036A
patent/DE2243036A1/en
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
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
JPS4837141A
(en)
1973-06-01
DE2243036A1
(en)
1973-03-08
FR2151091A1
(en)
1973-04-13
NL7211784A
(en)
1973-03-05
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Legal Events
Date
Code
Title
Description
1975-04-30
PS
Patent sealed [section 19, patents act 1949]
1979-03-21
PCNP
Patent ceased through non-payment of renewal fee
