Projector having condition indicating unit for displaying specified focusing condition and control method of projector
US8714754B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Oct 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B3/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projector which projects projection light representing an image onto a projection surface, includes: a focus adjusting unit which shifts focus of the projection light according to operation by a user; an adjustment image projecting unit which projects an adjustment image containing a portion representing a predetermined pattern by the projection light; an imaging unit which shoots the projection surface to which the adjustment image is projected; a specifying unit which specifies a focusing condition of the focus on the projection surface by analyzing image data that is shot by the imaging unit; and a condition indicating unit which displays the specified focusing condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.