GB675925A - Improvements in or relating to television receivers - Google Patents

Improvements in or relating to television receivers

Info

Publication number
GB675925A
GB675925A GB2441750A GB2441750A GB675925A GB 675925 A GB675925 A GB 675925A GB 2441750 A GB2441750 A GB 2441750A GB 2441750 A GB2441750 A GB 2441750A GB 675925 A GB675925 A GB 675925A
Authority
GB
United Kingdom
Prior art keywords
lines
series
image
relating
screen
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
GB2441750A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2441750A priority Critical patent/GB675925A/en
Publication of GB675925A publication Critical patent/GB675925A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
    • 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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/8913—Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
    • H01J2229/8922—Apparatus attached to vessel and not integral therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Glass Compositions (AREA)

Abstract

675,925. Cathode-ray tubes. SHEFFIELD, F. C. Dec. 13, 1950 [Oct. 6, 1950; Nov. 2, 1950], Nos. 24417/50 and 26728/50. Class 39 (i). [Also in Group XL (b)] The image on the screen of a television picturereproducing tube is viewed through a grid comprised of a series of closelyopaque parallel lines which intersect the lines forming the image. The grid lines, which may consist of one or more series 13, 14 with the lines of each series parallel to one another and the lines of the different series intersecting each other and the image lines 11, may be applied directly to the screen of the tube.
GB2441750A 1950-10-06 1950-10-06 Improvements in or relating to television receivers Expired GB675925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2441750A GB675925A (en) 1950-10-06 1950-10-06 Improvements in or relating to television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2441750A GB675925A (en) 1950-10-06 1950-10-06 Improvements in or relating to television receivers

Publications (1)

Publication Number Publication Date
GB675925A true GB675925A (en) 1952-07-16

Family

ID=10211407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2441750A Expired GB675925A (en) 1950-10-06 1950-10-06 Improvements in or relating to television receivers

Country Status (1)

Country Link
GB (1) GB675925A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897488A (en) * 1953-05-22 1959-07-28 Daniel K Rigney Television picture clarifier
US2922998A (en) * 1954-12-06 1960-01-26 Hugh M Stephenson Television receiver screen
US2977412A (en) * 1958-03-25 1961-03-28 Rca Corp Light reflection reducing device
US3031526A (en) * 1959-06-22 1962-04-24 Nathan L Oberstein Adjustable blind for television sets
US3378636A (en) * 1965-05-20 1968-04-16 Mc Donnell Douglas Corp Color television tube with ambient light filter
US4121234A (en) * 1975-08-21 1978-10-17 Vivitar Corporation Focusing and projection screen
EP0278664A2 (en) * 1987-02-06 1988-08-17 Thomas Firth Lynham A panel for a television
GB2236462A (en) * 1989-06-29 1991-04-03 Lee Chin Fu Anti-glare, anti-static, anti-radiation mask for crt display

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897488A (en) * 1953-05-22 1959-07-28 Daniel K Rigney Television picture clarifier
US2922998A (en) * 1954-12-06 1960-01-26 Hugh M Stephenson Television receiver screen
US2977412A (en) * 1958-03-25 1961-03-28 Rca Corp Light reflection reducing device
US3031526A (en) * 1959-06-22 1962-04-24 Nathan L Oberstein Adjustable blind for television sets
US3378636A (en) * 1965-05-20 1968-04-16 Mc Donnell Douglas Corp Color television tube with ambient light filter
US4121234A (en) * 1975-08-21 1978-10-17 Vivitar Corporation Focusing and projection screen
EP0278664A2 (en) * 1987-02-06 1988-08-17 Thomas Firth Lynham A panel for a television
EP0278664A3 (en) * 1987-02-06 1989-10-18 Thomas Firth Lynham A panel for a television
GB2236462A (en) * 1989-06-29 1991-04-03 Lee Chin Fu Anti-glare, anti-static, anti-radiation mask for crt display
GB2236462B (en) * 1989-06-29 1994-03-09 Lee Chin Fu CRT shield

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