GB862594A - Improved optical projection apparatus - Google Patents
Improved optical projection apparatusInfo
- Publication number
- GB862594A GB862594A GB2428/58A GB242858A GB862594A GB 862594 A GB862594 A GB 862594A GB 2428/58 A GB2428/58 A GB 2428/58A GB 242858 A GB242858 A GB 242858A GB 862594 A GB862594 A GB 862594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- lenses
- systems
- transparencies
- superposition
- 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
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/40—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate
- G09F9/405—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate the selected character being projected on a common screen accommodating only one character at a time, to provide the same display position for all characters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
862,594. Optical-projection apparatus. GUMPERTZ, D. G. Jan. 24, 1958 [Jan. 31, 1957], No. 2428/58. Class 97(1) A projection unit comprises a plurality of converging optical systems projecting into superposition on a screen 18 and includes an approximately spherically curved transparent plate 58 or 66 carrying lenses 60, 68 aligned with the axes of the projection systems. The lenses may be formed integrally with or attached to the curved plates. In the form shown each system includes one of a group of lamps 42 arranged in horizontal and vertical rows and separated by the partitions of a spacer member 56. The lamps at the periphery of the group are located forwardly by spacers 46. The systems project into superposition on the screen 18 from transparencies at the plate 58 aligned with the lenses thereon. The transparencies may be formed on a film attached to the plate or painted directly on the plate. A selected transparency is projected by lighting the appropriate lamp. Several units may be juxtaposed so that, for example, the separate digits of a number may be displayed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US862594XA | 1957-01-31 | 1957-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB862594A true GB862594A (en) | 1961-03-15 |
Family
ID=22197335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2428/58A Expired GB862594A (en) | 1957-01-31 | 1958-01-24 | Improved optical projection apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB862594A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185513B (en) * | 1961-11-13 | 1965-01-14 | Polycontact A G | Device for displaying a selectable combination of characters |
DE1214432B (en) * | 1963-03-11 | 1966-04-14 | Teldix Luftfahrt Ausruestung G | Lens plate for projection devices of small dimensions and process for their manufacture |
DE1221931B (en) * | 1962-12-31 | 1966-07-28 | Ibm | Optical display device for letters, numbers or characters |
JPS4933637A (en) * | 1972-07-22 | 1974-03-28 |
-
1958
- 1958-01-24 GB GB2428/58A patent/GB862594A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185513B (en) * | 1961-11-13 | 1965-01-14 | Polycontact A G | Device for displaying a selectable combination of characters |
DE1221931B (en) * | 1962-12-31 | 1966-07-28 | Ibm | Optical display device for letters, numbers or characters |
DE1214432B (en) * | 1963-03-11 | 1966-04-14 | Teldix Luftfahrt Ausruestung G | Lens plate for projection devices of small dimensions and process for their manufacture |
JPS4933637A (en) * | 1972-07-22 | 1974-03-28 |
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