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61. 发明授权

US4178076A Macro zoom lens 失效
标题翻译：微距变焦镜头
公开(公告)号：US4178076A
公开(公告)日：1979-12-11
申请号：US903174
申请日：1978-05-05
申请人： Sadahiko Tsuji , Yujiro Agari
发明人： Sadahiko Tsuji , Yujiro Agari
IPC分类号： G02B7/105 , G02B15/16 , G02B15/22 , G02B15/18
CPC分类号： G02B7/105 , G02B15/16 , G02B15/22
摘要： The present invention relates to a macro zoom lens capable of taking a close up photograph at the one end at which a wide lens effect is obtained and at the other end at which a telephoto lens effect is obtained. One or two groups of the movable lenses in the zoom lens move in a movable direction along the optical axis at the one end at which a wide lens effect is obtained. At the other end, a telephoto lens effect is obtained. The distance between each lens and its next lens in the zoom lens in the ordinary zooming state is small as compared with the distance between the corresponding lenses at the time of taking a close up photograph.
摘要翻译：本发明涉及一种能够在获得宽透镜效果的一端拍摄近距离照片的宏观变焦透镜，以及在获得长焦镜头效果的另一端。变焦透镜中的一组或两组可移动透镜沿着可在获得宽透镜效果的一端处的光轴沿可移动方向移动。在另一端，获得长焦透镜效果。在通常的变焦状态下，变焦透镜中的每个透镜与其下一个透镜之间的距离与拍摄近照时的相应透镜之间的距离相比较小。

62. 发明授权

US4105291A Large aperture zoom lens 失效
标题翻译：大光圈变焦镜头
公开(公告)号：US4105291A
公开(公告)日：1978-08-08
申请号：US655542
申请日：1976-02-05
申请人： Sadahiko Tsuji
发明人： Sadahiko Tsuji
IPC分类号： G02B15/167 , G02B15/173 , G02B15/18
CPC分类号： G02B15/173
摘要： The present invention relates to a zoom lens comprising four groups, the first group from the side of the object to be photographed presenting a positive refraction power, consisting of a positive compound lens of a negative and a positive lens and of a positive lens seen from the side of the object to be photographed and movable at the time of focussing, the second group presenting a negative refracting power and movable largely forth and back at the time of zooming, the third group presenting a positive refraction power and movable to and from in functional engagement with the second group at the time of zooming, whereby the first, the second and the third group almost composing an afocal system, and the fourth group presenting a positive refraction power and the image forming effect and consisting two positive lenses, a negative lens, a positive lens and a positive compound lens of a positive and a negative lens.
摘要翻译：本发明涉及一种包括四组的变焦透镜，来自被拍摄对象侧的第一组呈现正折射率，由正透镜的正复合透镜和从正透镜观察的正透镜在聚焦时要拍摄和移动的物体的侧面，第二组呈现负折射力，并且在变焦时可大量向前和向后移动，第三组呈现正折射光并且可移动到在缩放时与第二组的功能性接合，由此第一组，第二组和第三组几乎构成无焦点系统，第四组具有正折射力和图像形成效果，并且包括两个正透镜，负像透镜，正透镜和正透镜和负透镜的正复合透镜。

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