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公开(公告)号：US4653874A
公开(公告)日：1987-03-31
申请号：US879825
申请日：1986-06-26
IPC分类号： G02B13/18 , G02B15/173 , G02B15/20 , G02B15/16
CPC分类号： G02B15/173
摘要： A zoom lens having at least three components, or, from front to rear, a first component of positive power, a second component of negative power and a third component with the air separations between the successive two of said three components being varied to effect zooming, whereby said first component is constructed with, from front to rear, a bi-convex first lens, a second lens of negative power and a third lens of positive power.
摘要翻译： 具有至少三个分量的变焦透镜，或从前到后具有正功率的第一分量，负功率的第二分量和具有所述三个分量中的连续两个之间的空气分离的第三分量变化以实现变焦 由此所述第一部件从前到后构造为双凸第一透镜，负功率的第二透镜和正光焦度的第三透镜。
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公开(公告)号：US4626076A
公开(公告)日：1986-12-02
申请号：US706918
申请日：1985-02-28
申请人： Sigeru Oshima , Sadahiko Tsuji
发明人： Sigeru Oshima , Sadahiko Tsuji
CPC分类号： G02B15/17
摘要： A zoom lens having at least 4 components of which the 1st component counting from the front is of positive refractive power and the 2nd and 3rd components are of negative refractive power, wherein the aforesaid 1st, 2nd and 3rd components are made movable for moving in respective loci, which are different from each other, to effect zooming.
摘要翻译： 具有至少4个分量的变焦透镜，其中从前面计数的第一分量具有正折光力，第二和第三分量具有负屈光力，其中上述第一，第二和第三分量可移动以在相应的 轨迹彼此不同，以实现缩放。
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公开(公告)号：US4618762A
公开(公告)日：1986-10-21
申请号：US563584
申请日：1983-12-20
申请人： Jun Hattori , Sadahiko Tsuji
发明人： Jun Hattori , Sadahiko Tsuji
CPC分类号： G02B7/32
摘要： An in-focus position detecting optical system comprises a focus lens for imaging the image of an object to be photographed at an imaging position. The focus lens has integrally formed therewith a light projecting lens for projecting a distance measuring light flux onto the object to be photographed. The light projecting lens has the same focal length as that of the focus lens.
摘要翻译： 对焦位置检测光学系统包括用于对要在摄像位置拍摄的被摄体的图像进行成像的聚焦透镜。 聚焦透镜与其一体地形成有用于将测量光束投射到待拍摄对象上的投光透镜。 光投影透镜具有与聚焦透镜相同的焦距。
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公开(公告)号：US4618219A
公开(公告)日：1986-10-21
申请号：US581953
申请日：1984-02-21
IPC分类号： G02B15/167 , G02B15/17 , G02B15/14
CPC分类号： G02B15/17
摘要： The disclosed zoom lens includes, from front to rear, a first lens component of positive power for focusing the lens, a second lens component of negative power for varying magnification power, a third lens component of negative power for compensating for the image shift resulting from the change of magnification power, and a fourth lens component of positive power for forming an image. The second lens component includes, from front to rear, a negative meniscus-shaped lens having a strong refracting rear surface, and another negative mensicus-shaped lens having a strong refracting front surface and a cemented surface of forward convexity. A front group of the fourth component includes, from front to rear, a bi-convex lens having a rear surface of strong curvature, another bi-convex lens having a front surface of strong curvature, a lens of negative power having a front surface of strong curvature and a lens of positive power having a front surface of strong curvature. The second group of the fourth component includes, from front to rear, a bi-concave lens having a rear surface of strong curvature, a bi-convex lens having a rear surface of strong curvature, and another bi-convex lens having a front surface of strong curvature. This permits a compact lens with good correction throughout the zooming range.
摘要翻译： 所公开的变焦镜头包括从前到后的用于聚焦透镜的正功率的第一透镜部件，用于变化放大倍率的负功率的第二透镜部件，负功率的第三透镜部件，用于补偿由 放大倍率的变化，以及用于形成图像的正电力的第四透镜分量。 第二透镜部件包括从前到后的具有强折射后表面的负弯液面透镜，以及具有强折射前表面和具有向前凸起的胶合表面的另一阴性主棱镜形透镜。 第四组件的前组包括从前到后的具有强曲率后表面的双凸透镜，具有强曲率前表面的另一双凸透镜，负功率透镜具有前表面的前表面 强曲率和具有强曲率前表面的正功率透镜。 第四组件的第二组件包括从前到后的具有强曲率后表面的双凹透镜，具有强曲率后表面的双凸透镜，以及具有前表面的另一双凸透镜 强曲率。 这允许在整个变焦范围内具有良好校正的紧凑型透镜。
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公开(公告)号：US4580878A
公开(公告)日：1986-04-08
申请号：US693815
申请日：1985-01-22
申请人： Sadahiko Tsuji
发明人： Sadahiko Tsuji
CPC分类号： H04N5/2254
摘要： A picture taking optical system for a color video camera of the frequency dividing type in which a half mirror for automatic focus detection and a double refraction plate for use as an optical low pass filter are in proper relation to prevent a reduction in the performance of the low pass filter.
摘要翻译： 用于自动聚焦检测用半反射镜和用作光学低通滤波器的双折射板的分频型彩色摄像机的摄像光学系统正确关系，以防止降低 低通滤波器。
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公开(公告)号：US4544250A
公开(公告)日：1985-10-01
申请号：US613590
申请日：1984-05-23
申请人： Kazuo Tanaka , Sadahiko Tsuji
发明人： Kazuo Tanaka , Sadahiko Tsuji
摘要： A photographic optical system including a beam splitter for a finder is provided with a releasably attached extender in between the beam splitter and a focal plane, while the finder is provided with means for changing the magnification of an image thereof as the extender is inserted into, or retracted from, axial alignment to the optical system. The camera has, despite the addition of the magnification power changing capability along with the finder image magnification correcting capability, to be made small in the size and light in the weight.
摘要翻译： 包括用于取景器的分束器的摄影光学系统在分束器和焦平面之间设置有可释放地附接的扩展器，而取景器设置有用于在扩展器插入时改变其图像的放大倍数的装置， 或从轴向对准缩回到光学系统。 尽管增加了放大倍率变化能力以及取景器图像放大校正能力，相机具有小的重量和尺寸。
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公开(公告)号：US4371261A
公开(公告)日：1983-02-01
申请号：US196442
申请日：1980-10-14
申请人： Sadahiko Tsuji
发明人： Sadahiko Tsuji
CPC分类号： G01C3/02
摘要： An active type of range finder includes a beam projection lens which is formed by a number of parts each having a different optical axis for use in a beam projection optical system, and a beam receiving optical system for widening the range finding angular field without lowering range finding accuracy.
摘要翻译： 一种有源式的测距仪包括一个束投影透镜，该透镜由多个具有不同光轴的部分形成，用于光束投影光学系统;以及光束接收光学系统，用于在不降低范围的情况下加宽测距角场 寻找准确性。
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公开(公告)号：US4368954A
公开(公告)日：1983-01-18
申请号：US155171
申请日：1980-06-02
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 compact zoom objective disclosed includes, from front to rear, a first lens group having positive power, a second lens group of negative power, a third lens group of positive power for collimating incident rays of light, and a fourth lens group of positive power. The fourth lens group is composed of a positive first lens of convex forward surface, a negative second lens of concave forward surface, a positive third lens, a biconvex and a positive fourth lens, and a negative fifth lens of concave forward surface arranged in this order from the front, and being characterized by fulfilling the following conditions:(1) 0.75F.sub.IV
摘要翻译： 所公开的紧凑变焦目标包括从前到后具有正功率的第一透镜组，负功率的第二透镜组，用于准直入射光的正功率的第三透镜组和正功率的第四透镜组 。 第四透镜组由正向前表面的正的第一透镜，凹形前表面的负的第二透镜，正的第三透镜，双凸面和正的第四透镜以及设置在该第二透镜的正的第四透镜的负的第五透镜 其特征在于满足以下条件：（1）0.75FIV
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公开(公告)号：US4240699A
公开(公告)日：1980-12-23
申请号：US902499
申请日：1978-05-03
申请人： Yasuhisa Sato , Sadahiko Tsuji , Katsumi Tanaka
发明人： Yasuhisa Sato , Sadahiko Tsuji , Katsumi Tanaka
IPC分类号： G02B15/167 , G02B13/24 , G02B15/14 , G02B15/173 , G02B15/22 , G02B15/18
CPC分类号： G02B13/24 , G02B15/173
摘要： A method of designing a telephoto type zoom lens having a convergent front member movable for focusing and capable of providing focusing down to as short an object distance as 6.5 times the longest focal length to achieve good stabilization of correction of spherical aberration on adjustment of the other aberrations within predetermined limits throughout the extended focusing range even when zooming is effected to the telephoto settings. This is accomplished by means of the formula:F(Ao, Lo) = .phi..sup.3 h.sup.4 Ao(1-.lambda..sup.4 -4a.beta.+6a.sup.2 .beta..sup.2) + 4.phi..sup.2 h.sup.2 Lo(-.beta.+3a.beta..sup.2) - .beta.(.alpha.').sup.2 + .beta..sup.2 {2.phi.(3+Po) + 3.alpha.'.alpha.'}In the case of the telephoto type zoom lens comprising, in addition to such front component, a divergent second component or variator, a convergent or divergent third component or compensator and a convergent fourth component or relay lens,-0.25.ltoreq.F(Ao, Lo).ltoreq.0.25is found as acceptable.
摘要翻译： 一种长焦型变焦镜头的设计方法，具有可聚焦的会聚前部构件，能够将目标距离设定为距离最长焦距的6.5倍，从而实现对其他调整的球面像差校正的良好稳定性 即使对长焦设置进行变焦，在整个扩展对焦范围内的像差也在预定的范围内。 这通过以下公式来实现：F（Ao，Lo）= phi 3h4Ao（1-λ4-4aβ+6a2β2）+ 4phi2h2Lo（-β+3aβ2）-β（α'）2 +β2 {2 phi（3 + Po）+3α'alpha'}在长焦型变焦透镜的情况下，除了这种前部分量之外，还包括发散的第二分量或变换器，收敛或发散的第三分量或 补偿器和收敛的第四分量或中继透镜，-0.25
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公开(公告)号：US4200358A
公开(公告)日：1980-04-29
申请号：US919770
申请日：1978-06-28
申请人： Sadahiko Tsuji , Yasuhisa Sato
发明人： Sadahiko Tsuji , Yasuhisa Sato
IPC分类号： G02B15/167 , G02B15/17 , G02B15/18
CPC分类号： G02B15/17
摘要： A zoom lens having a focal length range of about 1:9.5 with a relative aperture of 1:1.4 and whose minimum focal length is made shorter than has heretofore been possible to correspond to an image angle of 56.degree. or more, while good stability of aberration correction is maintained throughout the extended zooming range at the increased relative aperture with limitation of the overall dimensions to a minimum. The lens is suitable for cine cameras of small size and includes a positive first group of four lens elements movable for focusing, negative second and negative third groups axially movable to effect zooming, a positive fourth group acting in afocal manner, and a positive fifth group having an image forming function, the first, fourth and fifth groups being stationary during zooming.
摘要翻译： 焦距为约1:9.5的变焦透镜，相对孔径为1：1.4，其最小焦距缩短到迄今为止可以对应于56°以上的图像角度，同时良好的稳定性 在增大的相对孔径的整个扩展变焦范围内，维持整体尺寸的限制的像差校正最小。 该镜头适用于小尺寸的电影照相机，包括一个可以聚焦的四个透镜元件的正的第一组，可以轴向移动以实现变焦的负第二和负第三组，正焦点的第四组和第五组 具有图像形成功能，第一，第四和第五组在变焦期间是静止的。
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