发明名称 |
COUPLING LENS, ILLUMINATING DEVICE, AND ELECTRONIC DEVICE |
摘要 |
A coupling lens for coupling first light having a first wavelength from a first light source with a second light having a second wavelength from a second light source disposed adjacent to the first light source in substantially the same direction includes a first surface disposed to face the first and second light sources, the first surface including a first region transmitting the first light and having a first region curvature and a second region transmitting the second light and having a second region curvature, and a second surface opposite to the first surface and having a second-surface curvature. A position of a center of the first region curvature differs from a position of a center of the second region curvature. A center of the second surface curvature and the center of the first region curvature are disposed on an optical axis of the first or second light source. |
申请公布号 |
EP2359175(A4) |
申请公布日期 |
2015.01.07 |
申请号 |
EP20090833517 |
申请日期 |
2009.12.15 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
TAKAHASHI, YOSHITAKA;AKIYAMA, HIROSHI |
分类号 |
G02B3/10;G02B27/09;G02B27/10;G02B27/14 |
主分类号 |
G02B3/10 |
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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