Invention Grant
- Patent Title: Image projection apparatus
- Patent Title (中): 图像投影仪
-
Application No.: US11700615Application Date: 2007-01-31
-
Publication No.: US07748855B2Publication Date: 2010-07-06
- Inventor: Masayuki Imaoka
- Applicant: Masayuki Imaoka
- Applicant Address: JP Hachioji-shi
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Hachioji-shi
- Agency: Sidley Austin LLP
- Priority: JP2006-029551 20060207
- Main IPC: G03B21/14
- IPC: G03B21/14 ; G03B21/28 ; G03B21/22 ; G02B5/10
Abstract:
A projector includes a plane mirror that is disposed at one end side of an end portion of a screen and a projection optical system that is disposed at a position that is separated from a reflection surface side of the plane mirror. A light shielding plate is provided to at least one of two positions; one is between a fourth mirror and the plane mirror of the projection optical system, and the other is between the plane mirror and the screen.
Public/Granted literature
- US20070182938A1 Image projection apparatus Public/Granted day:2007-08-09
Information query
