Adjustment device and projection device using the same
US10989991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Dec 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An adjustment device for adjusting an up-down displacement of an optical engine module of a projection device includes a bracket, at least one adjustment zone, at least one flexible element, and at least one adjustment element. The bracket is disposed inside the projection device. The at least one adjustment zone is located at the optical engine module. There is a gap between the optical engine module and the bracket. The at least one flexible element is abutted between the bracket and the optical engine module. The at least one adjustment element is movably disposed through the at least one adjustment zone. A distance between the at least one adjustment zone of the optical engine module and the bracket is adjusted by an operation of the at least one adjustment element. A projection device using the adjustment device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.