GB389073A - Improvements in and relating to picture transmission apparatus - Google Patents

Improvements in and relating to picture transmission apparatus

Info

Publication number
GB389073A
GB389073A GB16322/31A GB1632231A GB389073A GB 389073 A GB389073 A GB 389073A GB 16322/31 A GB16322/31 A GB 16322/31A GB 1632231 A GB1632231 A GB 1632231A GB 389073 A GB389073 A GB 389073A
Authority
GB
United Kingdom
Prior art keywords
light
picture
lenses
beams
reflected
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
Application number
GB16322/31A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB389073A publication Critical patent/GB389073A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H04N1/0621—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction
    • H04N1/0628—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction using several scanning heads circumferentially spaced from one another and circumferentially aligned, e.g. mounted on a rotating disk
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H04N1/0621—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction
    • H04N1/0635—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction using oscillating or rotating mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning

Abstract

389,073. Copying-telegraphy. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Alexanderson, E. F. W.; 8, Adams Road, Schenectady, New York, U.S.A.) June 4, 1931, No. 16322. Convention date, June 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iii).] The apparatus described in Specification 308,695, [Class 40 (iii), Telegraphs, Electric], is modified so that separate adjacent lines of a picture are stated to be simultaneously transmitted and reproduced at a distant station. The picture is mounted on a sheet 2 carried by a semicircular cylindrical member 1 and moved slowly in the direction of the cylinder axis. A fixed light 6 is concentrated on the picture through a window 3 by lenses 5 mounted on a sleeve extension 4 of a hollow shaft rotated by a motor 10. It is stated that light reflected from diametrically opposite unit areas of the picture lying in adjacent scanning lines is collected by lens systems 8, and reflected by prisms 9 to travel along the shaft at the end of which it is separated into two beams by holes 15 in a diaphragm 14. The beams are interrupted at a desired frequency by an independently driven chopperdisc 17, and passed through lenses 20, 21 to photo-electric cells 22, 23 modulating transmitters 24, 25 working on slightly different transmission frequencies. The apparatus at the receiving station is similar to that at the transmitter except that the lenses 5 and the light source 6 are not required. The signals operating two separate receivers are applied to discharge lamps whose light variations are concentrated on a diaphragm corresponding to the member 14, as shown in the Figure. The separated light-beams are reflected to pass through a rotating lens system to trace adjacent paths on a light-sensitive sheet mounted similarly to the sheet 2, as shown in the Figure.
GB16322/31A 1930-06-05 1931-06-04 Improvements in and relating to picture transmission apparatus Expired GB389073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US459366A US1857130A (en) 1930-06-05 1930-06-05 Picture transmission

Publications (1)

Publication Number Publication Date
GB389073A true GB389073A (en) 1933-03-09

Family

ID=23824485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16322/31A Expired GB389073A (en) 1930-06-05 1931-06-04 Improvements in and relating to picture transmission apparatus

Country Status (2)

Country Link
US (1) US1857130A (en)
GB (1) GB389073A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532799A (en) * 1944-08-01 1950-12-05 Rca Corp Facsimile system having rotating scanner moving longitudinally within stationary transparent drum
US2632801A (en) * 1948-06-05 1953-03-24 Charles A Donaldson Deep well camera
US2892901A (en) * 1956-10-02 1959-06-30 Soundscriber Corp Long time recorder having fixed transducer heads and yieldable tape pressure shoe
US3502803A (en) * 1967-05-12 1970-03-24 Xerox Corp Facsimile line skipping apparatus
US3610824A (en) * 1968-09-11 1971-10-05 Xerox Corp Facsimile scanning apparatus
US3600507A (en) * 1969-06-11 1971-08-17 Us Air Force High data rate optical communication system
US3988537A (en) * 1974-06-14 1976-10-26 Cooley Austin G Illuminating and transmitting system
US4725893A (en) * 1987-06-25 1988-02-16 Eastman Kodak Company Scanners
DE4217238C2 (en) * 1992-05-21 1995-03-16 Mannesmann Ag Device for a photo setting device for exposing photosensitive exposure material
CA2146052A1 (en) * 1994-04-07 1995-10-08 Mervin Leon Gangstead Optical scanning system
US6396042B1 (en) 1999-10-19 2002-05-28 Raytheon Company Digital laser image recorder including delay lines
US7405849B2 (en) * 2004-07-09 2008-07-29 Transpacific Optics Llc Scanning device by curvilineal motion
US20060007508A1 (en) * 2004-07-09 2006-01-12 Mustek Systems Inc. Epicyclic scanning device

Also Published As

Publication number Publication date
US1857130A (en) 1932-05-10

Similar Documents

Publication Publication Date Title
GB389073A (en) Improvements in and relating to picture transmission apparatus
US2100348A (en) Light beam transmission system
GB354252A (en) Improvements in or relating to picture and the like transmission systems
GB402443A (en) Improvements in or relating to wireless direction finding systems
GB276399A (en) Improvements in or relating to picture telegraphy and the like
GB354953A (en) Improvements in and relating to the transmission and reception of pictures
US1902486A (en) Picture transmission
US1694301A (en) Electrical transmission of pictures
US2147452A (en) Television apparatus
GB422481A (en) Improvements in and relating to television and the like transmission systems
GB308277A (en)
US1866338A (en) Picture transmission apparatus
US2182043A (en) Television and like system
GB420669A (en) Improvements in or relating to wireless direction finding systems
US1626731A (en) Method of and apparatus for synchronization in picture transmission
GB382939A (en) Improvements in and relating to television apparatus
US1939805A (en) Television system
US2131715A (en) Electrooptical apparatus
SU37742A1 (en) Automatic Telegraph
SU56144A1 (en) Method of transmitting the vision of separately moving light points
GB358433A (en) Improvements in and relating to television systems
US1962417A (en) Carrier wave television system
US1647765A (en) Transmission of pictures by electricity
US2086382A (en) Television receiving apparatus
GB403395A (en) Improvements in methods of and means for transmission by electro magnetic waves of television signals and the like