发明名称 |
Rechargeable transparent slide viewer apparatus |
摘要 |
Apparatus for viewing a transparency includes a rechargeable battery and a telescoping lens housing which moves inwardly and outwardly with respect to a housing in which is disposed the rechargeable battery, a light source, and a solid diffuser/reflector block for diffusing and reflecting light from the light source over substantially the entire area of the transparency.
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申请公布号 |
US4372068(A) |
申请公布日期 |
1983.02.08 |
申请号 |
US19800174737 |
申请日期 |
1980.08.04 |
申请人 |
MAJOR, FREDERICK A. |
发明人 |
KNAPP, PAUL A.;MAJOR, FREDERICK A. |
分类号 |
G02B25/02;(IPC1-7):G02B27/02;G02B27/04;G03B21/20;G02B7/02 |
主分类号 |
G02B25/02 |
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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