GB1076269A - Device for selectively displaying symbols or characters on a display surface - Google Patents

Device for selectively displaying symbols or characters on a display surface

Info

Publication number
GB1076269A
GB1076269A GB1574066A GB1574066A GB1076269A GB 1076269 A GB1076269 A GB 1076269A GB 1574066 A GB1574066 A GB 1574066A GB 1574066 A GB1574066 A GB 1574066A GB 1076269 A GB1076269 A GB 1076269A
Authority
GB
United Kingdom
Prior art keywords
symbol
relay
plates
illuminated
april
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
GB1574066A
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
Publication of GB1076269A publication Critical patent/GB1076269A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Marketing (AREA)
  • Algebra (AREA)
  • Accounting & Taxation (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

1,076,269. Visual indicators. W. ZIRKEL. April 7, 1966 [April 12, 1965], No. 15740/66. Heading G4F. A display device comprises two translucent plates 3, 4 on which translucent coloured symbols 6, 7 are printed. Symbol 6 can normally be seen by reflected light but when illuminated by a rear light source 8 it is rendered invisible by providing on a coloured plate 5, the colour and density of which corresponds to that of symbol 6, an uncoloured symbol 51 which is the exact complement of symbol 6. Thus when plates 3, 4, 5 are illuminated from the rear, symbol 7 becomes exclusively visible. The state of an electric circuit may be indicated by displaying the operating condition of a relay, the symbol 6 representing the relay in its state of reset. The symbol 7 is an imprint of the circuit in its operative condition. A light source at the rear of the device is connected in shunt to the exciting winding of the relay. The plates 3, 4, 5 may be replaced by a single plate on which the necessary printed patterns are applied to the front and rear face.
GB1574066A 1965-04-12 1966-04-07 Device for selectively displaying symbols or characters on a display surface Expired GB1076269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965Z0011469 DE1254894B (en) 1965-04-12 1965-04-12 Device for the optional display of flat symbols

Publications (1)

Publication Number Publication Date
GB1076269A true GB1076269A (en) 1967-07-19

Family

ID=7621877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1574066A Expired GB1076269A (en) 1965-04-12 1966-04-07 Device for selectively displaying symbols or characters on a display surface

Country Status (4)

Country Link
CH (1) CH439818A (en)
DE (1) DE1254894B (en)
FR (1) FR1470873A (en)
GB (1) GB1076269A (en)

Also Published As

Publication number Publication date
DE1254894B (en) 1967-11-23
FR1470873A (en) 1967-02-24
CH439818A (en) 1967-07-15

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