JP2012048832A5

JP2012048832A5 -

Info

Publication number: JP2012048832A5
Application number: JP2010186921A
Authority: JP
Filing date: 2010-08-24
Publication date: 2013-09-19
Anticipated expiration: 2030-08-24

Description

［適用例１］本適用例に係る光源装置は、放射角が最大の方向と最小の方向とを有する複数の半導体レーザーで構成される半導体レーザーアレイと、該半導体レーザーアレイからの光が入射するコリメーターレンズアレイと、該コリメーターレンズアレイからの光が入射する集光レンズとを備えた光源装置であって、前記集光レンズは、平面の入射面と双曲面の出射面とを有し、前記半導体レーザーアレイの各々の放射角の略最大の方向と前記集光レンズの光軸を含む放射方向とを合わせたことを特徴とする

Application Example 1 In the light source device according to this application example, a semiconductor laser array including a plurality of semiconductor lasers having a maximum emission angle and a minimum emission direction, and light from the semiconductor laser array is incident. A light source device comprising a collimator lens array and a condensing lens on which light from the collimator lens array is incident, the condensing lens having a flat incident surface and a hyperboloidal exit surface The substantially maximum direction of each radiation angle of the semiconductor laser array and the radiation direction including the optical axis of the condenser lens are combined.

Claims

A semiconductor laser array composed of a plurality of semiconductor lasers having a maximum radiation angle and a minimum direction, a collimator lens array on which light from the semiconductor laser array is incident , and light from the collimator lens array A light source device including a condensing lens on which is incident ,
The condensing lens has a flat incident surface and a hyperboloidal exit surface, and the substantially maximum direction of each radiation angle of the semiconductor laser array and the radiation direction including the optical axis of the condensing lens are matched. A light source device characterized by that.

The light source device according to claim 1, wherein the conic constant of the hyperboloid of the exit surface of the condenser lens is K, and the refractive index of the condenser lens at the wavelength of the semiconductor laser is n.
−n ² × 1.1 <K <−n ² × 0.9
A light source device characterized by the above.

3. The light source device according to claim 1, wherein an F / value of the condensing lens is 1 or less. 4.

4. The light source device according to claim 1, wherein a fluorescent material is disposed in a light collecting portion condensed by a condensing lens. 5.

5. The light source device according to claim 1, wherein the phosphor is formed on a rotating wheel.

4. The light source device according to claim 1, wherein a scattering unit is disposed in a condensing part condensed by a condensing lens. 5.

4. The light source device according to claim 1, wherein scattering means is disposed in a light collecting portion condensed by the condenser lens, and the scattering means is formed on a rotating wheel. A light source device characterized by the above.

The light source device according to any one of claims 1 to 3, a phosphor disposed in a condensing unit condensed by the light source device, and fluorescence emitted from the phosphor are converted into image information. A projector comprising: a light modulation device; and a projection optical system that projects modulated light from the light modulation device as a projection image.

The light source device according to any one of claims 1 to 3, a scattering unit disposed in a light collecting unit condensed by the light source device, and light scattered from the scattering unit is converted into image information. A projector comprising: a light modulation device; and a projection optical system that projects modulated light from the light modulation device as a projection image.