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GB959114A - Improvements in or relating to display apparatus - Google Patents

Improvements in or relating to display apparatus

Info

Publication number
GB959114A
GB959114A GB4286361A GB4286361A GB959114A GB 959114 A GB959114 A GB 959114A GB 4286361 A GB4286361 A GB 4286361A GB 4286361 A GB4286361 A GB 4286361A GB 959114 A GB959114 A GB 959114A
Authority
GB
United Kingdom
Prior art keywords
radar
division
relating
display apparatus
plate
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
GB4286361A
Inventor
Eric Parker
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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Priority to GB4286361A priority Critical patent/GB959114A/en
Publication of GB959114A publication Critical patent/GB959114A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices

Landscapes

  • Road Signs Or Road Markings (AREA)

Abstract

959,114. Cathode-ray tube displays; radar. DECCA Ltd. Feb. 28, 1963 [Nov. 30, 1961], No. 42863/61. Headings H4D and H4T. [Also in Division B6] A semi-transparent reflector 11 elbows direct viewing of a P.P.I. radar display on a cathoderay tube 10 and reflected viewing of information on the upper surface of a transparent plate 12 edge-illuminated by lamps 13. When these are switched off, only the radar display is visible. Alternatively an optical projection system may be used. The plate 12 is part of a re-usable writing surface assembly (see Division B6). Specification 898,770 is referred to.
GB4286361A 1961-11-30 1961-11-30 Improvements in or relating to display apparatus Expired GB959114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4286361A GB959114A (en) 1961-11-30 1961-11-30 Improvements in or relating to display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4286361A GB959114A (en) 1961-11-30 1961-11-30 Improvements in or relating to display apparatus

Publications (1)

Publication Number Publication Date
GB959114A true GB959114A (en) 1964-05-27

Family

ID=10426296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4286361A Expired GB959114A (en) 1961-11-30 1961-11-30 Improvements in or relating to display apparatus

Country Status (1)

Country Link
GB (1) GB959114A (en)

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