3779640 is referenced by 22 patents and cites 5 patents.

An illuminating apparatus in which the temperature thereof is regulated for producing light rays having a substantially constant spectral energy distribution.

Title
Heating apparatus for scan lamp
Application Number
05/297,520
Publication Number
3779640
Application Date
October 13, 1972
Publication Date
December 18, 1973
Inventor
Kidd Wayne L
Assignee
Xerox Corporation
IPC
G03b 15/02
G03g 15/00
G03G 15/04
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