Title:
プロジェクタのための光源
Document Type and Number:
Japanese Patent JP5345622
Kind Code:
B2
Abstract:
A projector includes a plurality of illumination modules. Each illumination module includes a light source, such as a semiconductor light emitting diode, and an optical element configured to receive light from the light source and collimate the light into a beam. Light from the illumination modules is provided to a liquid crystal display panel, then a projection lens. In some embodiments, secondary optics, such as an array of Fresnel lenses or a reflective polarizer, are disposed between the illumination modules and the liquid crystal display panel. In some embodiments, the liquid crystal display panel is a low temperature polysilicon liquid crystal display.
Inventors:
Biahuizen Serge Jay
Harbors Gerald
Harbors Gerald
Application Number:
JP2010521518A
Publication Date:
November 20, 2013
Filing Date:
August 22, 2008
Export Citation:
Assignee:
KONINKLIJKE PHILIPS N.V.
Philips Lumileds Lighting Company Limited Liability Company
Philips Lumileds Lighting Company Limited Liability Company
International Classes:
F21S2/00; H01L33/00; H01L33/58; F21Y101/02
Domestic Patent References:
| JP2005292283A | ||||
| JP2005165126A | ||||
| JP2003330106A | ||||
| JP200524964A |
Attorney, Agent or Firm:
Susumu Tsugaru
Fueda Shusen
Fueda Shusen