Method and device for creating a facsimile of an image
US6219093A · kind A · utility
42Cited by
3References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1990 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Jan 5, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for operating an electro-optical array. Images indicative of shapes are obtained in some way, and these images are processed. The processed image is then used to drive an electro-optical array, such as a liquid crystal display, such that some parts of the display are opaque and other parts are transparent. A light source is directed through the liquid crystal array and thereby generates a light signal having the same shape as those parts of the liquid crystal array which are transparent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.