发明名称 Improved color TV projection lens system.
摘要 <p>Disclosed is an improved color projection TV lens system (10) which provides reduced chromatic aberration and improved chromaticity. These improvements are achieved by incorporating a light absorbing material into at least one lens (18) in the system wherein the lens has a substantially uniform thickness. &lt;IMAGE&gt;</p>
申请公布号 EP0445513(A1) 申请公布日期 1991.09.11
申请号 EP19910100884 申请日期 1991.01.24
申请人 U.S. PRECISION LENS 发明人 WESSLING, RICHARD JOSEPH
分类号 G02B1/11;G02B5/22;G02B13/16;G02B27/18;H04N5/74;H04N9/31 主分类号 G02B1/11
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