GB1360502A – Apparatus for use in the reproduction of coloured originals on a colour television receiver
– Google Patents
GB1360502A – Apparatus for use in the reproduction of coloured originals on a colour television receiver
– Google Patents
Apparatus for use in the reproduction of coloured originals on a colour television receiver
Info
Publication number
GB1360502A
GB1360502A
GB3385171A
GB3385171A
GB1360502A
GB 1360502 A
GB1360502 A
GB 1360502A
GB 3385171 A
GB3385171 A
GB 3385171A
GB 3385171 A
GB3385171 A
GB 3385171A
GB 1360502 A
GB1360502 A
GB 1360502A
Authority
GB
United Kingdom
Prior art keywords
filters
red
strip
blue
line
Prior art date
1970-07-18
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
GB3385171A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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.)
1970-07-18
Filing date
1971-07-19
Publication date
1974-07-17
1971-07-19
Application filed by Agfa Gevaert AG
filed
Critical
Agfa Gevaert AG
1974-07-17
Publication of GB1360502A
publication
Critical
patent/GB1360502A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N9/00—Details of colour television systems
H04N9/11—Scanning of colour motion picture films, e.g. for telecine
Abstract
1360502 Colour television AGFA-GEVAERT AG 19 July 1971 [18 July 1970] 33851/71 Heading H4F A film 4 is scanned by a flying-spot scanner 1, the transmitted beam being drawn out by lens 5 into a line 6 which is projected on to red, green and blue strip filters 7, 8 and 9, the red and blue strip filters, 7, 9 carrying gratings of opaque lines which cause the transmitted light to have different carrier frequencies which can be separated from the output of a photomultiplier 10 by frequency filters. The different carrier frequencies are in a non-integral ratio with each other. The three strip filters 78 and 9 may be replaced by nine strip filters in a recurring sequence (Fig. 3, not shown), the length of the scanning line 6 then being equal to three strip filter widths. Alternatively lens 5 may be replaced by beam-splitting means/prisms or semisilvered mirrors) to produce three beams, one for each strip filter 7, 8, 9 (Fig. 4, not shown). Two photomultipliers may be used, one (13, Fig. 5, not shown) for green light and one (14) for red and blue light. In a further embodiment the carrier frequencies are imparted to the light before it passes through the film 4 in which case the scanner screen la has three portions covered with red, green and blue filters, the red and blue filters having line gratings printed on them (Fig. 6, not shown). The three portions may be line-scanned simultaneously, the resulting beams being combined and passed to film 4, the film movement producing the frame scan, or a single cathode-beam may be alternated between the three filter areas at a high frequency so as to produce three line scans almost simultaneously. The carrier frequencies may be imparted by electronic means rather than gratings, and the light output of scanner 1 may be non-white, while still containing a proportion of each of the primary colours.
GB3385171A
1970-07-18
1971-07-19
Apparatus for use in the reproduction of coloured originals on a colour television receiver
Expired
GB1360502A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2035821A
DE2035821C3
(en)
1970-07-18
1970-07-18
Color film scanner
Publications (1)
Publication Number
Publication Date
GB1360502A
true
GB1360502A
(en)
1974-07-17
Family
ID=5777240
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3385171A
Expired
GB1360502A
(en)
1970-07-18
1971-07-19
Apparatus for use in the reproduction of coloured originals on a colour television receiver
Country Status (7)
Country
Link
US
(1)
US3737574A
(en)
JP
(1)
JPS5017815B1
(en)
BE
(1)
BE770103A
(en)
DE
(1)
DE2035821C3
(en)
FR
(1)
FR2101712A5
(en)
GB
(1)
GB1360502A
(en)
NL
(1)
NL7109826A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2353427A
(en)
*
1999-08-17
2001-02-21
Cintel Internat Ltd
Light detector for a film scanning apparatus
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3010177C2
(en)
*
1980-03-17
1982-11-04
ISCO-Optische Werke GmbH, 3400 Göttingen
Master scanner for generating television signals with simultaneous color transmission
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3483315A
(en)
*
1966-11-28
1969-12-09
Columbia Broadcasting Syst Inc
Apparatus to improve color fidelity in simultaneous color television systems
US3507981A
(en)
*
1966-12-19
1970-04-21
Bell Telephone Labor Inc
Single vidicon color video telephone system
GB1216835A
(en)
*
1967-04-17
1970-12-23
Columbia Broadcasting Syst Inc
Method of recording information
US3549237A
(en)
*
1967-12-18
1970-12-22
Technical Operations Inc
Optical apparatus and method for displaying spatially periodically modulated records
US3535992A
(en)
*
1968-04-01
1970-10-27
Columbia Broadcasting Syst Inc
Method and apparatus for optically recording color picture information on a photographic medium
1970
1970-07-18
DE
DE2035821A
patent/DE2035821C3/en
not_active
Expired
1970-12-23
JP
JP45115929A
patent/JPS5017815B1/ja
active
Pending
1971
1971-07-14
US
US00162341A
patent/US3737574A/en
not_active
Expired – Lifetime
1971-07-15
FR
FR7125848A
patent/FR2101712A5/fr
not_active
Expired
1971-07-16
BE
BE770103A
patent/BE770103A/en
unknown
1971-07-16
NL
NL7109826A
patent/NL7109826A/xx
unknown
1971-07-19
GB
GB3385171A
patent/GB1360502A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2353427A
(en)
*
1999-08-17
2001-02-21
Cintel Internat Ltd
Light detector for a film scanning apparatus
Also Published As
Publication number
Publication date
DE2035821C3
(en)
1974-11-07
NL7109826A
(en)
1971-12-27
US3737574A
(en)
1973-06-05
DE2035821A1
(en)
1972-02-10
JPS5017815B1
(en)
1975-06-24
DE2035821B2
(en)
1974-04-11
BE770103A
(en)
1972-01-17
FR2101712A5
(en)
1972-03-31
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Legal Events
Date
Code
Title
Description
1974-11-27
PS
Patent sealed [section 19, patents act 1949]
1982-02-17
PCNP
Patent ceased through non-payment of renewal fee
