Title:
PHOTOSYNTHESIS OPTICAL ELEMENT, ILLUMINATION APPARATUS AND PROJECTOR
Document Type and Number:
Japanese Patent JP2018004755
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a small size photosynthesis optical element capable of synthesizing a beam of light of two wavelengths with a simple structure, an illumination apparatus and a projector.SOLUTION: The photosynthesis optical element includes: a first function film; and a second function film. The first function film has a polarization separation function on a beam of light of the first wavelength, and transmits a beam of light of the second wavelength different from the first wavelength irrespective of the polarization state of the light of the second wavelength. The second function film transmits the light of the first wavelength and reflects the light of the second wavelength.SELECTED DRAWING: Figure 2
Inventors:
YASUMATSU KO
Application Number:
JP2016127709A
Publication Date:
January 11, 2018
Filing Date:
June 28, 2016
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G03B21/14; G03B21/00
Attorney, Agent or Firm:
Masatake Shiga
Yoshifumi Saeki
Kazunori Onami
Yoshifumi Saeki
Kazunori Onami