05055922 is referenced by 18 patents and cites 29 patents.

Disclosed is an improved color projection TV lens system which provides reduced chromatic aberration and improved chromaticity. These improvements are achieved by incorporating a light absorbing material into at least one lens in the system wherein the lens has a substantially uniform thickness.

Title
Color TV projection lens system
Application Number
7/490050
Publication Number
5055922
Application Date
March 7, 1990
Publication Date
October 8, 1991
Inventor
Richard J Wessling
Milford
OH, US
Agent
A L Michaelsen
Assignee
U S Precision Lens Incorporated
OH, US
IPC
H04N 5/740
H04N 9/18
H04N 9/16
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