GB453043A - Improvements in or relating to cathode ray tube television and like reproducer apparatus - Google Patents
Improvements in or relating to cathode ray tube television and like reproducer apparatusInfo
- Publication number
- GB453043A GB453043A GB2836/36A GB283636A GB453043A GB 453043 A GB453043 A GB 453043A GB 2836/36 A GB2836/36 A GB 2836/36A GB 283636 A GB283636 A GB 283636A GB 453043 A GB453043 A GB 453043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- ray tube
- cathode ray
- relating
- jan
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/89—Optical components associated with the vessel
- H01J2229/8907—Image projection devices
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
453,043. Television receivers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 30, 1936, No. 2836. Convention date, Jan. 30, 1935. [Classes 39 (i) and 40 (iii)] [See also Group XX] A plano-concave lens 15, Fig. 1, is placed adjacent the fluorescent screen 10 so as to form a curved image which is projected by an uncorrected lens 13 as a plane image on the screen 14. When the fluorescent screen is curved, Fig. 3, the lens 16 is double concave. The lens 16 may form the end wall of the cathode ray tube Fig. 4 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE453043X | 1935-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB453043A true GB453043A (en) | 1936-09-03 |
Family
ID=6538739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2836/36A Expired GB453043A (en) | 1935-01-30 | 1936-01-30 | Improvements in or relating to cathode ray tube television and like reproducer apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US2172775A (en) |
GB (1) | GB453043A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538852A (en) * | 1945-12-29 | 1951-01-23 | Rauland Corp | Kinescope projection by refractive optical system mounted on tube neck |
FR2406887A1 (en) * | 1977-10-19 | 1979-05-18 | Matsushita Electric Ind Co Ltd | CRT giving reduced distraction due to reflections - has screen with concave outer surface with radius of curvature selected according to viewing distance |
DE3221626A1 (en) * | 1981-06-08 | 1983-02-03 | Mitsubishi Denki K.K., Tokyo | Projection cathode ray tube |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899496A (en) * | 1959-08-11 | Process for television transmission | ||
US3126495A (en) * | 1964-03-24 | Cathode ray tube with a concave viewing screen | ||
US2542789A (en) * | 1945-01-03 | 1951-02-20 | Jr Adelbert Ames | Viewing apparatus for stereoscopic representation of pictures |
US2531956A (en) * | 1945-08-29 | 1950-11-28 | Waldorf Adrian | Optical lens system |
US2479907A (en) * | 1946-04-03 | 1949-08-23 | Taylor Taylor & Hobson Ltd | Optical objective having a front member correcting spherical aberration, field curvature, and distortion |
US2581000A (en) * | 1946-04-06 | 1952-01-01 | Jacob C Copeland | Magnifying reflection viewer for stereoscopic pictures |
US2510106A (en) * | 1946-05-31 | 1950-06-06 | Farnsworth Res Corp | Catoptric television projector having tube screen and object surface connected by light-conducting filaments |
US2590130A (en) * | 1949-03-05 | 1952-03-25 | Max A Schlesinger | Apparatus for projecting images from television receivers |
US2698553A (en) * | 1949-10-28 | 1955-01-04 | Jacob C Copeland | Reflecting magnifying viewer |
US2602903A (en) * | 1950-11-13 | 1952-07-08 | Kenneth T Snow | Cathode-ray tube |
US2728012A (en) * | 1952-08-30 | 1955-12-20 | Rca Corp | Cathode ray tube |
CA573953A (en) * | 1952-10-28 | 1959-04-14 | H. Naidich Herbert | Projecting method for cathode-ray tubes |
US2884833A (en) * | 1953-09-16 | 1959-05-05 | Pohl Frederic | Optical system for viewing pictures |
GB1080204A (en) * | 1965-06-09 | 1967-08-23 | Rudolph Rodenstock | Means for flattening the image field of electron image tubes |
US3727087A (en) * | 1970-11-16 | 1973-04-10 | Corning Glass Works | Means for securing planar member to cathode ray tube faceplate |
JPS5056810A (en) * | 1973-09-17 | 1975-05-17 | ||
US4185220A (en) * | 1977-06-30 | 1980-01-22 | Westinghouse Electric Corp. | Cathode ray display tube with contrast enhancement panel |
US4150320A (en) * | 1977-07-18 | 1979-04-17 | Gte Sylvania Incorporated | Integral lens cathode ray tube system |
US4249205A (en) * | 1978-12-11 | 1981-02-03 | Marvin P. Hodges | Aspheric projection lens system utilizing concave image |
JPS581122A (en) * | 1981-06-26 | 1983-01-06 | Mitsubishi Electric Corp | Projection type television receiver |
JPS59142513A (en) * | 1983-02-04 | 1984-08-15 | Hitachi Ltd | Picture projecting device |
US4755868A (en) * | 1984-02-08 | 1988-07-05 | Tds Patent Management, Inc. | High brightness projection TV system using one or more CRTs with a concave phosphor surface acting to concentrate light into a lens system |
JP3427440B2 (en) * | 1993-09-29 | 2003-07-14 | ソニー株式会社 | Cathode ray tube for projector |
-
1936
- 1936-01-28 US US61138A patent/US2172775A/en not_active Expired - Lifetime
- 1936-01-30 GB GB2836/36A patent/GB453043A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538852A (en) * | 1945-12-29 | 1951-01-23 | Rauland Corp | Kinescope projection by refractive optical system mounted on tube neck |
FR2406887A1 (en) * | 1977-10-19 | 1979-05-18 | Matsushita Electric Ind Co Ltd | CRT giving reduced distraction due to reflections - has screen with concave outer surface with radius of curvature selected according to viewing distance |
DE3221626A1 (en) * | 1981-06-08 | 1983-02-03 | Mitsubishi Denki K.K., Tokyo | Projection cathode ray tube |
Also Published As
Publication number | Publication date |
---|---|
US2172775A (en) | 1939-09-12 |
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