Title:
照明装置及びこれを備えたプロジェクタ
Document Type and Number:
Japanese Patent JP4715916
Kind Code:
B2
Abstract:
Exemplary embodiments of the present invention include a second reflector attached to a sealing portion so that its reflection surface may surround substantially the front half of a light emitting portion, the heat capacity of a front-side electrode surrounded with the second reflector is made larger than that of a rear-side electrode, an electrode shaft which supports the front-side electrode surrounded with the second reflector is made thicker and/or longer than an electrode shaft which supports the rear-side electrode, the front-side sealing portion to which the second reflector is attached is made thicker than a rear-side sealing portion, and the front-side sealing portion, to which the second reflector is attached is coated with a heat radiation material which has a thermal conductivity higher than that of the material of this sealing portion.
Inventors:
Takezawa samurai
Application Number:
JP2008333490A
Publication Date:
July 06, 2011
Filing Date:
December 26, 2008
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
F21S2/00; F21V7/00; F21V29/00; G03B21/14; H01J61/02; H01J61/073; H01J61/30; H01J61/35; H01J61/36; H01J61/52; H01J61/86; F21Y101/00
Domestic Patent References:
| JP5283045A | ||||
| JP11143378A |
Attorney, Agent or Firm:
Teruo Naito