Optical shutter device
US5325228A · kind A · utility
9Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1991 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Apr 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical shutter device for use, e.g., in an optical printer includes a plurality of electrooptic chips each having a plurality of very small segments for optical modulation. The optical shutter device has a voltage adjusting circuit which individually supplies the driving voltage to the chips depending on the light transmitting characteristics intrinsic to the chips. Thus, even when the chips have different light transmitting characteristics, the image produced by the chips will have a uniform intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.