发明名称 |
Condensing and collecting optical system with axially displaced concave reflector |
摘要 |
The present invention comprises a system for condensing and collecting electromagnetic radiation having a primary reflector disposed on one side of an electromagnetic radiation source and a target disposed on the opposite side of the source. The primary reflector includes a concave reflecting surface portion, which preferably forms the entire surface of the reflector. The concave surface portion of the primary reflector, which is preferably of a substantially toroidal shape, defines an optical axis and a primary center of curvature disposed along the optical axis. The source of electromagnetic radiation is located approximately on the optical axis but axially offset a first distance from the center of curvature in a direction toward the concave surface portion. The target, such as a single core fiber optic or a fiber optic bundle, is located approximately on the optical axis but axially offset a second distance from the center of curvature in a direction away from the concave surface portion for acquiring a substantially focused image of the source reflected by the concave surface portion. With this configuration, the first and second distances are approximately related by the equation (1-zs/r1)x(1-zi/r1)=1 where zs is the first distance, zi is the second distance and r1 is the primary radius of curvature of the toroidal reflecting surface portion of the primary reflector when a toroidal reflector is used for partial compensation of aberrations. In an alternate embodiment, a secondary reflector may further be added behind the source on the side opposite the primary reflector to enhance further light collection. According to a second alternate embodiment, the system may also comprise a housing having sides with inner surfaces forming the primary reflector and the secondary reflector. |
申请公布号 |
SG43110(A1) |
申请公布日期 |
1997.10.17 |
申请号 |
SG19960003801 |
申请日期 |
1995.02.01 |
申请人 |
COGENT LIGHT TECHNOLOGIES INC |
发明人 |
BAKER, GLENN, S.;BRENNER, DOUGLAS, M.;PICCIONI, ROBERT, L. |
分类号 |
G02B27/00;F21V7/00;F21V7/06;F21V7/08;F21V7/09;F21V8/00;F21Y101/00;G02B6/42;G02B17/06 |
主分类号 |
G02B27/00 |
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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