Title:
PROJECTOR IMAGE DISPLAYING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/042563
Kind Code:
A1
Abstract:
Provided is a projector image displaying device with improved fluorescent material life that does not lead to reduced light efficiency or increased device size when using a light source that causes a fluorescent material to emit light by an excitation light. The projector image displaying device comprises a light source device, an image displaying element, an illumination optical system having a plurality of optical elements that illuminate light from the light source device onto the image displaying element, and a projector lens that magnifies and projects an optical image formed by the image displaying element. The light source device has a solid-state light emitting unit that emits excited light, a rotationally controllable disk-shaped substrate at least partially coated with fluorescent material, and a light focusing means for focusing the exited light from the solid-state light emitting unit to a plurality of regions on the disk-shaped substrate, and is configured such that the fluorescent material that passes through one excited light irradiation region does not pass through adjoining excited light irradiation regions.
Inventors:
KIMURA NOBUYUKI (JP)
Application Number:
PCT/JP2010/005839
Publication Date:
April 05, 2012
Filing Date:
September 29, 2010
Export Citation:
Assignee:
HITACHI CONSUMER ELECTRONICS (JP)
KIMURA NOBUYUKI (JP)
KIMURA NOBUYUKI (JP)
International Classes:
G03B21/14; F21S2/00
Foreign References:
| JP2004341105A | 2004-12-02 | |||
| JP2009277516A | 2009-11-26 | |||
| JP2010164846A | 2010-07-29 | |||
| JP2010085740A | 2010-04-15 |
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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Claims: