Optically adjusting device
US6181490A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optically adjusting device adapted to be used in a projector is provided. The optically adjusting device includes a frame having a plurality of frame members to define a space for containing an optical combiner therein, a plurality of light-receiving plates, each of which is disposed on one of the frame members for receiving a specific light beam and outputting the specific light beam to the optical combiner, and a plurality of adjusting plates, each of which is arranged between one of the frame members and a corresponding light-receiving plate for sequentially adjusting a position and orientation of the corresponding light-receiving plate with respect to the optical combiner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.