Projector, optical engine, and pixel offset device
US10739667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Jun 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0053
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector includes a light source module and an optical engine. The light source module provides an illumination beam. The optical engine includes a light valve, a projection lens, and a pixel offset device. The light valve has an active surface, and the active surface converts the illumination beam into an image beam and reflects the image beam. The projection lens projects the image beam from the projector. The pixel offset device is located between the light valve and the projection lens and includes a frame and a transparent panel, the transparent panel is disposed in the frame and includes a transparent surface, the transparent panel is disposed on the transmission path of the illumination beam and the transmission path of the image beam, the frame is configured to drive the transparent panel to vibrate, and the transparent surface is tilted with respect to the active surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.