GB1363490A – Colour image pickup device
– Google Patents
GB1363490A – Colour image pickup device
– Google Patents
Colour image pickup device
Info
Publication number
GB1363490A
GB1363490A
GB4767271A
GB4767271A
GB1363490A
GB 1363490 A
GB1363490 A
GB 1363490A
GB 4767271 A
GB4767271 A
GB 4767271A
GB 4767271 A
GB4767271 A
GB 4767271A
GB 1363490 A
GB1363490 A
GB 1363490A
Authority
GB
United Kingdom
Prior art keywords
images
colour
stripes
camera
spaced
Prior art date
1970-10-14
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
GB4767271A
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.)
Sony Corp
Original Assignee
Sony Corp
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.)
1970-10-14
Filing date
1971-10-13
Publication date
1974-08-14
1971-10-13
Application filed by Sony Corp
filed
Critical
Sony Corp
1974-08-14
Publication of GB1363490A
publication
Critical
patent/GB1363490A/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
G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 – G02B26/00, G02B30/00 for polarising
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N9/00—Details of colour television systems
H04N9/01—Circuitry for demodulating colour component signals modulated spatially by colour striped filters by phase separation
Abstract
1363490 Colour television SONY CORP 13 Oct 1971 [14 Oct 1970] 47672/71 Heading H4F A colour television camera incorporating a vertically striped (for horizontal scanning) colour filter through which an image of the object to be televised is projected on to the photosensitive layer of the camera is provided with an optical system to project more than one horizontally spaced image of the object on to the photosensitive layer. The colour filter has cyclically repeated colour stripes, the ratio of the total number of stripes in each set to the number of stripes in each set which are transparent to each primary colour being N and the width of each set of stripes being p, N images being projected on to the photosensitive layer, the images being spaced by a integral multiple of p/N. This is stated to eliminate moirÚ effects, p being several tens of microns so that misregistration in the reproduced picture is not noticeable. The spaced images may be produced by semireflecting mirrors HM 1 -HM 4 , Fig. 10, and reflecting mirrors FM 1 and FM 2 , mirrors FM 1 and FM 2 being at suitable angles to produce three spaced images (for a red, green, blue striped filter). Alternatively a trapezoidal crosssection prism (Fig. 11, not shown), or a prism such as shown in Fig. 12 may be used. Various forms of double refracting prisms or a quartz sheet may be used, two quartz sheets being provided for producing three or four images (Fig. 20, not shown). When using one of the double refracting means an optical rotator may be included before the double refractor to counteract the effect of light reflected from parts of the object being polarized. A filter using six colours (red, yellow, green, cyan, blue and magenta, N = 2) may be used. The camera tube used may be formed with striped electrodes adjacent the photosensitive surface (Fig. 2, not shown) so as to allow an index signal to be impressed on the camera output. The output may alternatively be derived by sampling the camera output.
GB4767271A
1970-10-14
1971-10-13
Colour image pickup device
Expired
GB1363490A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP45090214A
JPS517381B1
(en)
1970-10-14
1970-10-14
Publications (1)
Publication Number
Publication Date
GB1363490A
true
GB1363490A
(en)
1974-08-14
Family
ID=13992217
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4767271A
Expired
GB1363490A
(en)
1970-10-14
1971-10-13
Colour image pickup device
Country Status (7)
Country
Link
US
(1)
US3784734A
(en)
JP
(1)
JPS517381B1
(en)
CA
(1)
CA948761A
(en)
DE
(1)
DE2151266C3
(en)
FR
(1)
FR2110432B1
(en)
GB
(1)
GB1363490A
(en)
NL
(1)
NL174320C
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2131258A
(en)
*
1982-11-12
1984-06-13
Sony Corp
Image display apparatus
GB2131648A
(en)
*
1982-10-22
1984-06-20
Victor Company Of Japan
Television camera having an optical filter
Families Citing this family (23)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5219735B2
(en)
*
1971-11-17
1977-05-30
JPS53132214A
(en)
*
1977-04-25
1978-11-17
Sony Corp
Vertical aperture correction circuit
JPS5445152A
(en)
*
1977-09-17
1979-04-10
Victor Co Of Japan Ltd
Optical comb type filter
JPS5689173A
(en)
*
1979-12-20
1981-07-20
Sony Corp
Vertical aperture correcting circuit
US4525737A
(en)
*
1981-05-11
1985-06-25
Canon Kabushiki Kaisha
Color solid state image pick-up device
JPH0620316B2
(en)
*
1982-05-17
1994-03-16
株式会社日立製作所
Imaging optical system
DE3414713C3
(en)
*
1983-04-18
1992-10-08
Asahi Optical Co Ltd
Fiber optic endoscope
DE3515020A1
(en)
*
1984-04-28
1985-11-07
Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa
LOCAL FREQUENCY FILTER
EP0185733B1
(en)
*
1984-06-18
1989-03-08
EASTMAN KODAK COMPANY (a New Jersey corporation)
Apparatus for producing a color image signal
US4605956A
(en)
*
1984-09-10
1986-08-12
Eastman Kodak Company
Single-chip electronic color camera with color-dependent birefringent optical spatial frequency filter and red and blue signal interpolating circuit
DE3686358T2
(en)
*
1985-05-27
1993-02-25
Sony Corp
OPTICAL LOW-PASS FILTER FOR A SOLID-COLOR CAMERA.
US4720637A
(en)
*
1986-06-19
1988-01-19
Polaroid Corporation
Electro-optical imaging system and lens therefor
JPH0833527B2
(en)
*
1988-07-18
1996-03-29
キヤノン株式会社
Imaging system with optical low-pass filter
JPH0833526B2
(en)
*
1988-11-28
1996-03-29
キヤノン株式会社
Photographic lens with optical low-pass filter
US5477381A
(en)
*
1989-02-02
1995-12-19
Canon Kabushiki Kaisha
Image sensing apparatus having an optical low-pass filter
US4989959A
(en)
*
1989-06-12
1991-02-05
Polaroid Corporation
Anti-aliasing optical system with pyramidal transparent structure
JP2615248B2
(en)
*
1989-07-10
1997-05-28
富士写真フイルム株式会社
Optical filter
US5581301A
(en)
*
1990-10-03
1996-12-03
Canon Kabushiki Kaisha
Image processing apparatus with adjustable low-pass optical filter characteristics
US6937283B1
(en)
*
1996-12-03
2005-08-30
Eastman Kodak Company
Anti-aliasing low-pass blur filter for reducing artifacts in imaging apparatus
WO2001086348A1
(en)
2000-05-09
2001-11-15
Jon Oshima
Multiplexed motion picture camera
JP2004126384A
(en)
*
2002-10-04
2004-04-22
Pentax Corp
Optical low-pass filter and imaging optical system
US20060170797A1
(en)
*
2005-02-02
2006-08-03
Biernath Rolf W
Article having a birefringent surface for use as a blur filter
US20060170808A1
(en)
*
2005-02-02
2006-08-03
Biernath Rolf W
Article having a birefringent surface for use as a blur filter
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2696520A
(en)
*
1951-01-19
1954-12-07
Philco Corp
Color television camera system
GB1301591A
(en)
*
1969-04-04
1972-12-29
BE760069A
(en)
*
1969-12-10
1971-05-17
Western Electric Co
SINGLE TUBE COLOR TELEVISION CAMERA WITH PHASE
US3716666A
(en)
*
1971-06-29
1973-02-13
Bell Telephone Labor Inc
Optical spatial frequency filter
1970
1970-10-14
JP
JP45090214A
patent/JPS517381B1/ja
active
Pending
1971
1971-10-12
US
US00188029A
patent/US3784734A/en
not_active
Expired – Lifetime
1971-10-13
CA
CA125,014A
patent/CA948761A/en
not_active
Expired
1971-10-13
GB
GB4767271A
patent/GB1363490A/en
not_active
Expired
1971-10-14
NL
NLAANVRAGE7114160,A
patent/NL174320C/en
not_active
IP Right Cessation
1971-10-14
DE
DE2151266A
patent/DE2151266C3/en
not_active
Expired
1971-10-14
FR
FR7137016A
patent/FR2110432B1/fr
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2131648A
(en)
*
1982-10-22
1984-06-20
Victor Company Of Japan
Television camera having an optical filter
US4539584A
(en)
*
1982-10-22
1985-09-03
Victor Company Of Japan, Ltd.
Television camera having an optical filter
GB2131258A
(en)
*
1982-11-12
1984-06-13
Sony Corp
Image display apparatus
Also Published As
Publication number
Publication date
FR2110432B1
(en)
1976-12-03
FR2110432A1
(en)
1972-06-02
CA948761A
(en)
1974-06-04
US3784734A
(en)
1974-01-08
NL174320B
(en)
1983-12-16
NL174320C
(en)
1984-05-16
JPS517381B1
(en)
1976-03-06
DE2151266A1
(en)
1972-04-20
DE2151266B2
(en)
1980-10-02
DE2151266C3
(en)
1981-05-07
NL7114160A
(en)
1972-04-18
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Legal Events
Date
Code
Title
Description
1974-12-27
PS
Patent sealed [section 19, patents act 1949]
1991-11-13
PE20
Patent expired after termination of 20 years
