GB1076269A - Device for selectively displaying symbols or characters on a display surface - Google Patents
Device for selectively displaying symbols or characters on a display surfaceInfo
- 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
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
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Computational Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Algebra (AREA)
- Accounting & Taxation (AREA)
- Marketing (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.
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) |
-
1965
- 1965-04-12 DE DE1965Z0011469 patent/DE1254894B/en active Pending
-
1966
- 1966-02-11 CH CH202566A patent/CH439818A/en unknown
- 1966-03-08 FR FR52610A patent/FR1470873A/en not_active Expired
- 1966-04-07 GB GB1574066A patent/GB1076269A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1470873A (en) | 1967-02-24 |
DE1254894B (en) | 1967-11-23 |
CH439818A (en) | 1967-07-15 |
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