发明名称 ILLUMINATION METER AND EXPOSURE SYSTEM
摘要 An illumination meter (7) having a chassis (2) formed therein with a light receiving aperture (2a) and a light receiving element (3) provided with a light receiving surface (3a) disposed inside the chassis (2) and facing the light receiving aperture (2a), wherein the chassis (2) is provided with a tubular unit (light shielding unit) (8) for shielding an oblique incident light (Q) on the light receiving aperture (2a).
申请公布号 WO9939375(A1) 申请公布日期 1999.08.05
申请号 WO1999JP00382 申请日期 1999.01.29
申请人 NIKON CORPORATION;TSUJI, TOSHIHIKO 发明人 TSUJI, TOSHIHIKO
分类号 G03F7/20;(IPC1-7):H01L21/027;G01J1/02 主分类号 G03F7/20
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