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Title:
ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2015201433
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an illumination optical system and an image projection device that can realize the projection of an image with high luminance and high image quality.SOLUTION: An illumination optical system comprises a first lens array that divides light emitted by a light source, a second lens array that receives light from the first lens array, and a light collection optical system that leads light from the second lens array to an image display element. A conjugate point of the image display element is located between an incidence plane of the first lens array and an incidence plane of the second lens array.

Inventors:
SUDO TAKASHI
MAEDA YUUKI
Application Number:
JP2015045685A
Publication Date:
November 12, 2015
Filing Date:
March 09, 2015
Export Citation:
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Assignee:
CANON KK
International Classes:
F21S2/00; F21V5/04; G02B3/00; G02B19/00; G03B21/14
Domestic Patent References:
JP2000305170A2000-11-02
JP2005049593A2005-02-24
JP2003255272A2003-09-10
JP2003279880A2003-10-02
JP2012137654A2012-07-19
JP2000305170A2000-11-02
JP2005049593A2005-02-24
JP2003255272A2003-09-10
JP2003279880A2003-10-02
JP2012137654A2012-07-19
JP2007108461A2007-04-26
JP2011090321A2011-05-06
JP2002023105A2002-01-23
JP2007108461A2007-04-26
JP2011090321A2011-05-06
Foreign References:
US20060092390A12006-05-04
US20060092390A12006-05-04
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya



 
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