发明名称
摘要 A reflex mirror 2, 2' for an SLR camera includes a fully reflective, elliptical area 2a, 2a' whose center coincides with the optical axis, and a surrounding, elliptical, semi-transparent area 2b, 2b'. The remaining area 2c, 2c' of the mirror is fully reflective. The semi-transparent area may be uniform in transmissivity, or it may be formed by a plurality of concentric elliptical slits in the reflective surface.
申请公布号 DE2701270(B2) 申请公布日期 1979.02.01
申请号 DE19772701270 申请日期 1977.01.13
申请人 ASAHI KOGAKU KOGYO K.K., TOKIO 发明人 URANO, FUMIO, OMIYA, SAITAMA;ARAI, AKIHIRO, TOKIO
分类号 G03B7/099;G02B5/00;G03B7/0997;G03B13/02;G03B19/12 主分类号 G03B7/099
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