Calibration system and method for display optical systems
US5803570A · kind A · utility
29Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Dec 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A calibration system and method for a display optical system including a projector and a projection screen. A calibration camera is inserted between the projector and the screen to receive the radiation directly from the projector. The image focused by the camera lens is captured by a charge-coupled device, and processed by a controller. The result is fed back to the image generator of the projector for further improvement in the image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.