发明名称 |
Power combination optical system and light source module |
摘要 |
An optical system includes a plurality of separate light sources with a number M of the light sources arranged in a first direction and a number N of the light sources arranged in a second direction. Each of the light sources has an asymmetric light emission area. The light sources are arranged so that a light beam passing a collimator optical element has a beam width in the first direction greater than a beam width in the second direction. An anamorphic optical element is arranged to have a beam-size reduction rate in the first direction greater than a beam-size reduction rate in the second direction and converts the plurality of light beams from the light sources into a light beam having a symmetric beam cross-section. A light-condensing optical element condenses the light beam having the symmetric beam cross-section into a light receiving element, and the anamorphic optical element includes an array of a number of prisms integrally arranged.
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申请公布号 |
US7050238(B2) |
申请公布日期 |
2006.05.23 |
申请号 |
US20040951584 |
申请日期 |
2004.09.29 |
申请人 |
RICOH OPTICAL INDUSTRIES CO., LTD. |
发明人 |
TAKAHASHI AKIRA;ODASHIMA MASAHARU;UMEKI SHIGERU;KUSAKA KATSUYA;TAKAHASHI HIROAKI;ANBE HIROYUKI;OIKAWA ICHIROH;KUDOU MITSUHIRO |
分类号 |
G02B6/32;G02B13/08;G02B13/10;G02B27/09;H01S5/00 |
主分类号 |
G02B6/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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