Integrating lens array and image forming method for improved optical efficiency
US5662401A · kind A · utility
59Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0031
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination system and method for illuminating an output patch includes a first array for receiving light, and which includes first lenslets. A second array, which includes second lenslets, receives the light from the first array and outputs the light to the illumination patch. The first lenslets have a uniform shape and the second lenslets have a non-uniform shape thereby reducing optical extent and maximizing system lighting efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.