Method of controlling an optical characteristic
US4036553A · kind A · utility
23Cited by
0References
2Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 3, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Mar 3, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of controlling an optical characteristic of a material and it is concerned also with devices and image-forming means for carrying out the method. The method of control is particularly advantageous in devices comprising a plurality of points distributed in the form of a matrix. The optical characteristic K of the material is controlled by an energization having a magnitude G for a duration t, the values G and t being so selected as a function of the time response K (G, t) of the characteristic K at an energization stage of magnitude G that K (G.sub.O, t.sub.O) is equal to K.sub.O.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.