LIGHT SOURCE DEVICE AND PROJECTION DEVICE

PROBLEM TO BE SOLVED: To provide a light source device or the like excellent in use efficiency of light, in which light such as a laser beam can be guided to a desired optical path to irradiate an irradiation target without allowing the laser beam to propagate out of the optical path.SOLUTION: A lig...

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Bibliographic Details
Main Authors FUJITA KAZUHIRO, ITO KAORU, NISHIMORI TAKEHIRO, KITABAYASHI JUNICHI, TAKAHASHI TATSUYA, MURAI TOSHIHARU
Format Patent
LanguageEnglish
Japanese
Published 07.09.2015
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To provide a light source device or the like excellent in use efficiency of light, in which light such as a laser beam can be guided to a desired optical path to irradiate an irradiation target without allowing the laser beam to propagate out of the optical path.SOLUTION: A light source device 2 to be used for a projector 1 is constituted by a light source (excitation light source) 10, a reflective/transmissive wheel 11, a first diffusion plate 12, a lens 13, a first dichroic mirror 14, a lens 15, a phosphor wheel 16, a second diffusion plate 17, a lens 18, a reflective mirror group 19, a lens 20, a second dichroic mirror 21, a lens 22, and a color component switching disk 23. The reflective mirror group 19 is composed of a first reflective mirror 19a and a second reflective mirror 19b. A reflection surface 191a of the first reflective mirror 19a and a reflection surface 191b of the second reflective mirror 19b are disposed to oppose to each other, and the reflection position of the first reflective mirror 19a and the reflection position of the second reflective mirror 19b are aligned at the same position. 【課題】レーザ光等の光が光路外に進行することがなく、該光を所望の光路に導いて被照射部照射することができ、光利用効率に優れた光源装置等を提供する。【解決手段】プロジェクタ１に用いる光源装置２を、光源（励起光源）１０と、反射・透過ホイール１１と、第１拡散板１２と、レンズ１３と、第１ダイクロイックミラー１４と、レンズ１５と、蛍光体ホイール１６と、第２拡散板１７と、レンズ１８と、反射ミラー群１９と、レンズ２０と、第２ダイクロイックミラー２１と、レンズ２２と、色成分切替え盤２３とで構成する。反射ミラー群１９は、第１反射ミラー１９ａと、第２反射ミラー１９ｂとで構成する。第１反射ミラー１９ａの反射面１９１ａと第２反射ミラー１９ｂの反射面１９１ｂとを向かい合わせて配置し、第１反射ミラー１９ａの反射位置と第２反射ミラー１９ｂの反射位置とを同じ位置にする。【選択図】図１
Bibliography:Application Number: JP20140036964