Controlled reflection readout for displays
US4235523A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F13/0472
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to a controlled reflection readout for information displays or targets such as digital or instrumentation panels for such apparatus as computers, compasses, watches, clocks and consoles wherein the display is not placed normal to the viewing plane and cannot be read at 90.degree. to the display. The display or specular transparent window is inclined to the line of sight and glare shielding means which extends forwardly from the top of the display or target to prohibit reading the display at a right angle thereto whereby reflections from the sun or lights in a room will interfere with reading through the optically transparent window in front of the target or display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.