Invention Grant
- Patent Title: Projection display device that displaces an optical position of an imager in conjunction with a focus adjustment
- Patent Title (中): 投影显示装置，与焦点调整一起移动成像器的光学位置
-
Application No.: US12426725Application Date: 2009-04-20
-
Publication No.: US08152313B2Publication Date: 2012-04-10
- Inventor: Ryuhei Amano
- Applicant: Ryuhei Amano
- Applicant Address: JP Moriguchi-shi
- Assignee: SANYO Electric Co., Ltd.
- Current Assignee: SANYO Electric Co., Ltd.
- Current Assignee Address: JP Moriguchi-shi
- Agency: Mots Law, PLLC
- Agent Marvin A. Motsenbocker
- Priority: JP2008-123922 20080509
- Main IPC: G03B21/14
- IPC: G03B21/14 ; H04N3/22
Abstract:
A projection display device has an imager that modulates light from a light source in accordance with an image signal, a projection optical system that enlarges and projects the light modulated by the imager onto a projection plane, a focus adjustment part disposed in the projection optical system, and a displacement part that displaces the imager in a direction vertical to a light axis of the projection optical system, in conjunction with the focus adjustment part.
Public/Granted literature
- US20090279055A1 PROJECTION DISPLAY DEVICE Public/Granted day:2009-11-12
Information query
