发明名称 |
Optical system for producing uniform line illumination |
摘要 |
A system for creating a bright and uniform line of illumination. The "hot spot" of an arc lamp is imaged onto a narrow, circular pinhole aperture. Light passing through the pinhole aperture is collimated and passed through a second aperture (the apodizing aperture), before being focused to a line of illumination by a cylindrical lens. The spatial profile of the apodizing aperture is tailored to remove non-uniformities in the illumination source thereby allowing a highly uniform line of illumination to be created. Alternatively, the spatial profile of the apodizing aperture can be tailored to produce a line of illumination having a desired non-uniform intensity profile.
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申请公布号 |
US5768017(A) |
申请公布日期 |
1998.06.16 |
申请号 |
US19960685421 |
申请日期 |
1996.07.22 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KING, MARK REID;MANSFIELD, SCOTT MARSHALL;VONDERHAAR, WILLIAM HARRY |
分类号 |
G02B27/58;(IPC1-7):G02B27/46;F21V9/00 |
主分类号 |
G02B27/58 |
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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