发明名称 |
Full frame flash illumination system utilizing a diffuse integrating optical cavity |
摘要 |
An illumination system for a document copying machine including an optical cavity having interior walls coated with a white, diffusely reflecting material. One end of the cavity contains a platen for positioning document to be copied while the opposing end contains a lens for forming an image of the document on a light sensitive image plane. Illumination from a single flash illumination source located within the cavity, undergoes multiple reflections from the walls resulting in a uniform diffuse illumination of the document.
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申请公布号 |
US4250538(A) |
申请公布日期 |
1981.02.10 |
申请号 |
US19790015558 |
申请日期 |
1979.02.26 |
申请人 |
XEROX CORP |
发明人 |
DURBIN, JOHN A;REES, JAMES D |
分类号 |
G03B15/05;G03B27/54;G03G15/04;G09F13/00;G09F13/04;(IPC1-7):G09F13/04 |
主分类号 |
G03B15/05 |
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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