Title:
HIGH TEMPERATURE LENS CONSTRUCTION
United States Patent 3493291
Inventors:
Webb, James E.
Publication Date:
02/03/1970
Export Citation:
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Assignee:
Webb, James E.
Primary Class:
359/741
Other Classes:
65/37, 65/38, 126/698, 126/700, 359/820
International Classes:
F24J2/08; F24J2/10; G02B3/00; (IPC1-7): G02B3/00; G02B7/02
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US Patent References:
3187339Three dimensional viewing apparatus
2880650Optical glass domes
0591466N/A
0586256N/A
0531994N/A




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