发明名称 |
Film number writing system |
摘要 |
A writing system is usable in apparatus in which mirrors in a "V" configuration, split mirrors, a combining mirror and a camera mirror project images of opposite sides of a document in an imaging region to a microfilm in side-by-side relation. The writing system includes mirrors which project alpha or numeric character images from an LED display to the combining mirror to be projected to an otherwise unused portion of the microfilm. A compact folded path is provided having the same focal distance as that provided by the document image projecting mirrors.
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申请公布号 |
US4984008(A) |
申请公布日期 |
1991.01.08 |
申请号 |
US19890344996 |
申请日期 |
1989.04.28 |
申请人 |
BELL & HOWELL COMPANY |
发明人 |
FRYSTAK, RICHARD;O'CALLAGHAN, SR., JOHN S. |
分类号 |
G03B27/465;G03B27/52 |
主分类号 |
G03B27/465 |
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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