Projection type display apparatus having micro mirror type display element
US7440200B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection type display apparatus includes a projection lens barrel holding a projection lens, a micro mirror type display element, and a main body which holds the micro mirror type display element and on which the projection lens barrel is mounted. The projection lens barrel is formed with a barrel-side reference surface which becomes a mounting reference in a direction of an optical axis, and the main body is formed with a mounting reference surface against which the barrel-side reference surface abuts. The main body has an adjusting mechanism which adjusts a length between a reflection surface of the micro mirror type display element and the mounting reference surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.