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公开(公告)号：US4562344A
公开(公告)日：1985-12-31
申请号：US445989
申请日：1982-12-01
申请人： Shin-ichi Mihara , Toshihiro Imai , Ken-ichi Nakahashi , Youichi Iba , Masaki Imaizumi , Akio Taira
发明人： Shin-ichi Mihara , Toshihiro Imai , Ken-ichi Nakahashi , Youichi Iba , Masaki Imaizumi , Akio Taira
CPC分类号： G02B7/36 , G02B23/2407
摘要： An endoscope provided with a light receiving device on the eyepiece side in respect of an image guide and with a driving means for moving an objective lens near an eyepiece, to make the whole endoscope slim and to make it simple in formation despite its being provided with an automatic focus detecting mechanism.
摘要翻译： 一种内窥镜，其在图像导向器的目镜侧设置有光接收装置，以及用于使目镜附近的物镜移动的驱动装置，使得整个内窥镜变薄，并使其形成简单，尽管其设置有 自动对焦检测机构。
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公开(公告)号：US4516840A
公开(公告)日：1985-05-14
申请号：US392350
申请日：1982-06-25
CPC分类号： G02B21/22 , G02B21/245
摘要： An in-focus detector for a binocular stereomicroscope having a pair of left- and right-hand observation optics includes a pair of beam splitters, each disposed intermediate the objective lens and the eyepieces of the respective observation optics. The first one of the beam splitters introduces the optical image of a mark into one of the observation optics, which then focuses it on an object being observed. The image is then reflected by the object and passes through the other observation optics to be reflected by the second beam splitter so as to be directed externally of the observation optics and focussed on a photoelectric transducer element, which is effective to detect an in-focus condition.
摘要翻译： 用于具有一对左右观察光学元件的双目立体显微镜的对焦检测器包括一对分束器，每个分束器设置在物镜的中间和各个观察光学器件的目镜之间。 分光器的第一个将标记的光学图像引入到观察光学器件中的一个中，然后将其聚焦在被观察的物体上。 然后，该图像被物体反射并穿过另一个观察光学元件以被第二分束器反射，以便被引导到观察光学器件的外部，并聚焦在光电换能器元件上，这有效地检测聚焦 条件。
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公开(公告)号：US4635125A
公开(公告)日：1987-01-06
申请号：US724336
申请日：1985-04-17
申请人： Shin-ichi Mihara , Toshihiro Imai , Kazuo Ikari , Toru Fujii
发明人： Shin-ichi Mihara , Toshihiro Imai , Kazuo Ikari , Toru Fujii
CPC分类号： G03B7/09974 , G03B7/09972
摘要： A light-measuring system for single-lens reflex cameras wherein the light coming from an object to be photographed as reflected at the image-pickup surface is reflected once again by a partially reflecting means disposed in the photographing light path, so that this latter reflection light is measured on its own optical axis, to enable to perform the real-time measurement of light with a high precision.
摘要翻译： 用于单镜头反光相机的光测量系统，其中来自在图像拾取表面处反射的要拍摄的物体的光再次被设置在拍摄光路中的部分反射装置反射，使得后一反射 光在其自己的光轴上测量，以便能够以高精度执行光的实时测量。
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公开(公告)号：US4534626A
公开(公告)日：1985-08-13
申请号：US524082
申请日：1983-08-17
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
摘要： A large relative aperture telephoto lens system comprising a first converging lens group, a diverging lens group and a second converging lens group, arranged in said first lens group being a first positive lens component made of a glass material having a large anomalous partial dispersion ratio .theta..sub.i, a negative lens component made of a glass material having a small anomalous partial dispersion ratio .theta..sub.i and at least one of a second and third positive lens components made of a glass material having a large anomalous partial dispersion ratio .theta..sub.i, whereby longitudinal chromatic aberration is corrected to a very low level.
摘要翻译： 布置在所述第一透镜组中的第一会聚透镜组，发散透镜组和第二会聚透镜组的大的相对孔径远摄透镜系统是由具有大的异常部分色散比θ的玻璃材料制成的第一正透镜组件 i，由具有小的异常部分色散比θi的玻璃材料制成的负透镜部件和由具有大的异常部分色散比θi的玻璃材料制成的第二和第三正透镜部件中的至少一个，由此纵向色 像差被校正到非常低的水平。
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公开(公告)号：US4818083A
公开(公告)日：1989-04-04
申请号：US119899
申请日：1987-11-12
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
IPC分类号： G02B15/16 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A vari-focal lens system comprising a first lens group having a positive focal length, a second lens group having a negative focal length, a third lens group having a positive focal length, and a fourth lens group having a positive focal length in the order from the object side and arranged that the first and third lens groups are always kept fixed, the second lens group is arranged to be movable when varying the focal length of the lens system as a whole and to be kept fixed at the time of focusing, the fourth lens group is arranged to be movable for the purpose of compensating the displacement of the focal point which occurs when varying the focal length of the lens system as a whole and to be movable also for the purpose of focusing, and the rays coming out from the third lens group becomes approximately afocal, the vari-focal lens system being further arranged that the lens group to be moved for focusing is light in weight and, moreover, arranged to have a large aperture ratio, high vari-focal ratio and high performance.
摘要翻译： 一种变焦透镜系统，包括具有正焦距的第一透镜组，具有负焦距的第二透镜组，具有正焦距的第三透镜组和具有正焦距的第四透镜组， 从物体侧排列第一透镜组和第三透镜组总是保持固定的，第二透镜组被布置为在整体上改变透镜系统的焦距并且在聚焦时被保持固定的可移动， 第四透镜组被布置为可移动以便补偿当改变整个透镜系统的焦距并且为了聚焦的目的而可移动时发生的焦点的位移，并且射出的光线 从第三透镜组变得大致无焦点，变焦透镜系统进一步被布置为使得要聚焦的移动的透镜组重量轻，并且还设置为具有大的开口率，高 h变焦率和高性能。
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公开(公告)号：US4792219A
公开(公告)日：1988-12-20
申请号：US885647
申请日：1986-07-15
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
摘要： A large aperture long focus macro lens system comprising a first lens group having positive refractive power, a stop, a second lens group having positive refractive power, and a third lens group in the order from the object side, the large aperture long focus marco lens system being arranged to be focused on an object at a short distance by advancing the lens system as a whole in the state that the first lens group, the stop and the second lens group are advanced integrally by varying the relative airspace in respect to the third lens group, the large aperture long focus macro lens system being arranged that aberrations are corrected favorably and the variation of aberrations at the time of focusing is small and that the working distance does not become short and the advancing amount of the lens system does not become large when focused on the object at a very short distance.
摘要翻译： 大孔径长焦距微距透镜系统，包括具有正屈光力的第一透镜组，具有正屈光力的第二透镜组，具有正屈光力的第二透镜组，以及从物体侧开始的第三透镜组， 系统被布置为通过在第一透镜组，止挡和第二透镜组相对于第三透镜组改变相对空间的方向整体地推进的状态下通过前进透镜系统作为整体而在短距离处聚焦在物体上 透镜组，大孔径长焦微距透镜系统被布置为有利地校正像差，并且聚焦时的像差变化小，并且工作距离不变短，并且透镜系统的前进量不变 当在非常短的距离上聚焦于物体时很大。
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公开(公告)号：US4359271A
公开(公告)日：1982-11-16
申请号：US197743
申请日：1980-10-16
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
CPC分类号： G02B9/34
摘要： A compact photographic camera lens system having a short overall length, favorably corrected aberrations, especially off axial aberrations and a field angle of at least 63.degree. comprising a first positive meniscus lens component having a convex surface on the object side, a second bisconcave lens component, a third biconvex lens component and a fourth negative meniscus lens component, said fourth lens component having aspherical surfaces on both the sides.
摘要翻译： 一种紧凑的摄影相机透镜系统，其具有短的整体长度，有利的校正像差，特别是偏离轴向像差和至少63°的场角，包括在物体侧具有凸面的第一正弯月透镜部件，第二双凹透镜部件 ，第三双凸透镜部件和第四负弯月透镜部件，所述第四透镜部件在两侧具有非球面。
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公开(公告)号：US4568151A
公开(公告)日：1986-02-04
申请号：US592085
申请日：1984-03-22
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
IPC分类号： G02B9/34
CPC分类号： G02B9/34
摘要： A photographic lens system for compact cameras comprising a first positive meniscus lens component having a convex surface on the object side, a second lens component having negative refractive power, a third lens component having positive refractive power and a fourth negative meniscus lens component having a convex surface on the image side, at least one of said four lens components being a cemented doublet. Said photographic lens system has a relative aperture of F/2.8, aberrations corrected sufficiently favorably and a short total length.
摘要翻译： 一种用于小型照相机的照相镜头系统，包括：在物体侧具有凸面的第一正弯月透镜部件，具有负屈光力的第二透镜部件，具有正屈光力的第三透镜部件和具有凸折角度的第四负弯月形透镜部件 所述四个透镜组件中的至少一个是胶合双面胶。 所述摄影透镜系统具有F / 2.8的相对孔径，足够有利地修正像差和短的总长度。
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公开(公告)号：US4487484A
公开(公告)日：1984-12-11
申请号：US532150
申请日：1983-09-14
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
IPC分类号： G02B9/20
CPC分类号： G02B9/20
摘要： A behind-stop Tesser type lens system comprising a first lens component of a positive meniscus lens of which a convex surface is faced to the object-side, a second lens component of biconcave lens, and a third lens component of a cemented doublet comprising a negative meniscus lens and a biconvex lens and so arranged as to be compact and provided with a favorable image forming ability.
摘要翻译： 一种后轮Tesser型透镜系统，包括凸面朝向物体侧的正弯月形透镜的第一透镜部件，双凹透镜的第二透镜部件和胶结双面镜的第三透镜部件，其包括 负弯月透镜和双凸透镜，并且被布置为紧凑并且具有良好的图像形成能力。
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公开(公告)号：US4749267A
公开(公告)日：1988-06-07
申请号：US748396
申请日：1985-06-24
申请人： Shin-ichi Mihara
发明人： Shin-ichi Mihara
IPC分类号： G02B13/18 , G02B15/167 , G02B15/17 , G02B15/20 , G02B15/00
CPC分类号： G02B15/17
摘要： A large aperture ratio zoom lens system comprising a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having negative refractive power, and a fourth lens group comprising a front subgroup and a rear subgroup wherein the front subgroup comprises at least one negative lens component and the rear subgroup comprises at least one positive lens component, the large aperture ratio zoom lens system having at least one aspherical surface in the front subgroup, having a short overall length, a long back focal length, high resolving power and high performance, and being capable of coping with the use with an electronic image pick-up device.
摘要翻译： 包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有负屈光力的第三透镜组和包括前子组和后子组的第四透镜组的大开口率变焦透镜系统，其中， 所述前子组包括至少一个负透镜部件，所述后子组包括至少一个正透镜部件，所述大孔径比变焦透镜系统在所述前子组中具有至少一个非球面，具有短的总长度，长后焦距 高分辨能力和高性能，并且能够应对电子图像拾取装置的使用。
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