发明名称 |
High efficiency linear light source |
摘要 |
A linear light source for a film scanner is disclosed which includes an elongated light integrating cavity, formed within a solid illumination body, having diffusely reflective walls. Light is introduced into the cavity through an input port, and an output beam of diffuse light is produced through a slot which is generally parallel to the longitudinal axis of the integrating cavity. In order to increase the efficiency of the light source, light is introduced into the cavity through a high collection non-imaging optical device formed as a hollow bore within the illumination body.
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申请公布号 |
US5335158(A) |
申请公布日期 |
1994.08.02 |
申请号 |
US19920887197 |
申请日期 |
1992.05.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
KAPLAN, MARTIN C.;ERCK, GARY L.;FEDERICO, RICHARD J. |
分类号 |
H04N1/04;H04N1/028;(IPC1-7):F21V7/00 |
主分类号 |
H04N1/04 |
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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