Invention Grant
US07872219B2 Illumination device with plural color light sources and first and second integrators
失效
具有多个彩色光源和第一和第二积分器的照明装置
- Patent Title: Illumination device with plural color light sources and first and second integrators
- Patent Title (中): 具有多个彩色光源和第一和第二积分器的照明装置
-
Application No.: US12161109Application Date: 2007-01-18
-
Publication No.: US07872219B2Publication Date: 2011-01-18
- Inventor: Yusaku Shimaoka , Atsushi Hatakeyama , Yoshimasa Fushimi , Hiroshi Miyai
- Applicant: Yusaku Shimaoka , Atsushi Hatakeyama , Yoshimasa Fushimi , Hiroshi Miyai
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2006-011302 20060119
- International Application: PCT/JP2007/050643 WO 20070118
- International Announcement: WO2007/083678 WO 20070726
- Main IPC: G01J3/50
- IPC: G01J3/50
Abstract:
An illumination apparatus includes a light source (1), a first integrator (11) into which light from the light source (1) enters, and a second integrator (33) into which light exiting from the first integrator (11) enters. Accordingly, the aperture shape of the first integrator (11) can be optimally designed, so that the light utilization efficiency can be increased. Furthermore, even when the length of the first integrator (11) is reduced, a deficiency in the light uniformity due to the first integrator (11) is compensated for by the second integrator (33), so that high uniformity can be secured at the surface to be illuminated.
Public/Granted literature
- US20100165300A1 ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS USING THE SAME Public/Granted day:2010-07-01
Information query
