Title:
2重プリズムにおける偏光リサイクリングを有する照明装置
Document Type and Number:
Japanese Patent JP5085127
Kind Code:
B2
Abstract:
An illuminating device is described comprising an optical source emitting an unpolarized light beam, a polarizing beam splitter comprising a grid polarizer situated between the faces of two prisms. The light beam penetrates into the first prism through a face and reaches the polarizing beam splitter that transmits the light having a first polarization direction to the face that reflects it toward an exit face. In addition, the splitter reflects the light having a second polarization direction to the face that reflects it toward an exit face.
Inventors:
Jean-Jack Sacre
Pascal Benoa
Pascal Benoa
Application Number:
JP2006520807A
Publication Date:
November 28, 2012
Filing Date:
July 22, 2004
Export Citation:
Assignee:
Thomson Licensing
International Classes:
G03B21/14; G02B5/30; G02B27/28
Domestic Patent References:
| JP4267203A | ||||
| JP2003131212A | ||||
| JP2000338478A | ||||
| JP2000227583A | ||||
| JP200056266A | ||||
| JP200315220A |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office
Atsuhiro Hamanaka
Makoto Hotta
Atsuhiro Hamanaka
Makoto Hotta