发明名称 COLLAPSIBLE LENS SHADE
摘要 <p>A collapsible lens shade comprises a foldable bellows (1) connected between front (2) and rear (3) plate-like members. A track (5) is pivotally connected to one of the front (2) and rear (3) plate-like members, preferably the front member (2), and locking means (7, 11) is provided for locking the track (5) in a position extending from the member (2, 3) to which it is pivotally connected. Slide means (12) is coupled to the other of the front (2) and rear (3) members to permit same to slide along the length of the track member (5) when the track member (5) is in its extended, locked position, and second locking means (14) is provided for locking the slide means (12) at selected positions along the length of the track member (5). Replaceable adaptors (20) are preferably provided to enable the lens shade to be used with lenses of various barrel diameters. Also, means (32, 36) for inserting filters or other special effect plates is provided, as well as a flash or accessor shoe (45). </p>
申请公布号 WO1979000867(A1) 申请公布日期 1979.11.01
申请号 US1979000208 申请日期 1979.04.02
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