Title:
LUMINAIRE AND PROJECTOR
Document Type and Number:
Japanese Patent JP2014182207
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a luminaire capable of reducing speckle noise.SOLUTION: A luminaire includes: a light source 41; a light condensing optical system 43A on which light emitted from the light source 41 is incident; a first light diffusion layer 49a on which light from the light condensing optical system 43A is incident; and a second light diffusion layer 49b on which light from the first light diffusion layer 49a is incident. A diffusion force of the second light diffusion layer 49b is greater than a diffusion force of the first light diffusion layer 49a.
Inventors:
SAKATA HIDEFUMI
MIYAMAE AKIRA
NOJIMA SHIGEO
MIYAMAE AKIRA
NOJIMA SHIGEO
Application Number:
JP2013055371A
Publication Date:
September 29, 2014
Filing Date:
March 18, 2013
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G03B21/14; G02B3/00; G02B5/02; G02B19/00; H04N5/74
Domestic Patent References:
| JP2012137608A | 2012-07-19 | |||
| JP2007033577A | 2007-02-08 | |||
| JP2010256573A | 2010-11-11 |
Foreign References:
| WO2007116935A1 | 2007-10-18 |
Attorney, Agent or Firm:
Masatake Shiga
Yoshifumi Saeki
Kazunori Onami
Horiuchi Right A
Yoshifumi Saeki
Kazunori Onami
Horiuchi Right A