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公开(公告)号：USD247033S
公开(公告)日：1978-01-24
申请号：US639501
申请日：1975-12-10
申请人： Katsuji Muramatsu , Ikuo Fuutagawa
设计人： Katsuji Muramatsu , Ikuo Fuutagawa
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公开(公告)号：US4051494A
公开(公告)日：1977-09-27
申请号：US612947
申请日：1975-09-12
CPC分类号： G03B15/05 , G03B2215/0503
摘要： In a photographic camera provided with a built-in strobo flash light device, the distance from the strobo flash tube to the optical axis of the taking lens of the camera is selected within the range of 4.5cm to 6.5cm. In order to prevent the red eye effect in color photography, the guide number of the strobo flash tube is selected within the range determined with respect to the distance from the strobo flash tube to the optical axis of the taking lens in accordance with the following formula; ##EQU1## WHERE GN is the guide number of the strobo flash tube and d is the distance from the flash tube to the optical axis of the taking lens.
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公开(公告)号：US4024557A
公开(公告)日：1977-05-17
申请号：US601395
申请日：1975-08-01
CPC分类号： G03B7/003
摘要： A film magazine comprised of a cylindrical portion and a pair of end covers is provided with film speed indicating code means. The cylindrical portion of the film magazine is made of metal sheet applied with an insulating coating layer. The surface of the cylindrical portion is selectively provided with non-coated sections for indicating the film speed of the film loaded therein in accordance with a binary code system. The code which indicates the film speed is sensed by a small number of sensing contacts provided in the camera body. The non-coated sections for indicating the film speed are located in the inaccessible area of the film magazine so that the coding sections may not be damaged.
摘要翻译： 由圆筒形部分和一对端盖构成的胶片盒具有胶片速度指示代码装置。 胶片盒的圆柱形部分由涂有绝缘涂层的金属片制成。 圆筒形部分的表面选择性地设有非涂层部分，用于根据二进制代码系统来指示装载在其中的薄膜的胶片速度。 指示胶片速度的代码由设置在相机机体中的少数感测触点感测。 用于指示胶片速度的未涂覆部分位于胶片盒的不可接近的区域中，使得编码部分不会被损坏。
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