Method for compensating light reflection of projection frame and projection apparatus
US8523369B2 · kind B2 · utility
1Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for compensating light reflection of a projection frame and a projection apparatus is provided. In the method, a preset frame is projected by the projection apparatus. Next, a spectrum of a light reflected by the projected preset frame is detected and compared with an original spectrum of the preset frame. A light characteristic value of the projected preset frame is then adjusted accordingly, so as to compensate a difference between the detected spectrum of the reflected light and the original spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.