Title:
WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND PROJECTION DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND LASER LIGHT SOURCE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2010/004749
Kind Code:
A1
Abstract:
A wavelength conversion laser light source is provided with a fundamental light source which emits fundamental light, a wavelength conversion element which has a nonlinear optical effect and converts the fundamental light into harmonic light with a different wavelength, a first light receiver which receives light in a specified polarization direction included in the fundamental light and converts the amount of the light into an electrical signal, a fundamental control unit which controls the amount or wavelength of the fundamental light on the basis of the electrical signal from the first light receiver, a second light receiver which receives the harmonic light outputted from the wavelength conversion element and converts the amount of the light into an electrical signal, a temperature holding unit which holds the temperature of the wavelength conversion element constant, a fundamental control unit which performs first control for controlling the amount of the fundamental light on the basis of the electrical signal from the second light receiver and second control for controlling the amount of the fundamental light on the basis of the electrical signal from the first light receiver, and a temperature control unit which performs third control for controlling the temperature held by the temperature holding unit on the basis of the electrical signal from the second light receiver.
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Inventors:
FURUYA, Hiroyuki (())
古屋博之 (())
KUSUKAME, Koichi (())
楠亀弘一 (())
MIZUSHIMA, Tetsuro (())
水島哲郎 (())
YOKOYAMA, Toshifumi (())
横山敏史 (())
NAKAYAMA, Kenji (())
古屋博之 (())
KUSUKAME, Koichi (())
楠亀弘一 (())
MIZUSHIMA, Tetsuro (())
水島哲郎 (())
YOKOYAMA, Toshifumi (())
横山敏史 (())
NAKAYAMA, Kenji (())
Application Number:
JP2009/003194
Publication Date:
January 14, 2010
Filing Date:
July 08, 2009
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
FURUYA, Hiroyuki (())
古屋博之 (())
KUSUKAME, Koichi (())
楠亀弘一 (())
MIZUSHIMA, Tetsuro (())
水島哲郎 (())
YOKOYAMA, Toshifumi (())
横山敏史 (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
FURUYA, Hiroyuki (())
古屋博之 (())
KUSUKAME, Koichi (())
楠亀弘一 (())
MIZUSHIMA, Tetsuro (())
水島哲郎 (())
YOKOYAMA, Toshifumi (())
横山敏史 (())
International Classes:
G02F1/37
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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