发明名称 Photometer device for a reflex camera
摘要 <p>A photometer device is provided for use in a reflex camera, the reflex view finder of which possesses a scanning field lens (2) lying before the pentaprism (3), and wherein, between the pentaprism and eyepiece (4), an imaging lens (6) and a light sensor (7) are disposed outside the optical axis of the imaging beam path. As viewed in the direction of the light, there is disposed before the imaging lens (6) an aperture stop (5), having a trapezium-shaped opening and making possible, by reason of the geometry of its opening, an asymmetrical area utilization of the imaging lens (6) and, behind the imaging lens (6) there is disposed a shade stop (8) in the region below the optical axis. <IMAGE></p>
申请公布号 GB2226145(A) 申请公布日期 1990.06.20
申请号 GB19890005785 申请日期 1989.03.14
申请人 * VEB PENTACON DRESDEN 发明人 IRENE * PLANEK;RICHARD * GEBHARDT
分类号 G03B7/0997 主分类号 G03B7/0997
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