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公开(公告)号：US4687303A
公开(公告)日：1987-08-18
申请号：US628447
申请日：1984-07-06
IPC分类号： G02B15/20 , G02B15/177 , G02B15/16
CPC分类号： G02B15/177
摘要： A zoom lens system having, from front to rear, a positive first component, a negative second component, a positive third component and a fourth component, in which to effect zooming, the first, second and third components are moved axially in A relation such that the movements of the first and second components are non-linear with respect to that of the third component, and that when in the telephoto end, the first and third components lie more toward the front and the second component lies more toward the rear than when in the wide angle end. By specifying the relation in which the first, second and third components move as zooming nears the wide angle end, a valuable decrease in the diameter of the front lens members is achieved to provide a compact zoom lens system.
摘要翻译： 一种变焦透镜系统，其从前到后具有正的第一分量，负的第二分量，正的第三分量和第四分量，其中，为了进行变焦，第一，第二和第三分量以如下关系如下 第一和第二部件的运动相对于第三部件的运动是非线性的，并且当在长焦端时，第一和第三部件更靠近前部，而第二部件更靠近后部， 当在广角端。 通过指定第一，第二和第三分量随着广角端附近的变焦而移动的关系，实现了前透镜构件的直径的有价值的降低以提供紧凑的变焦透镜系统。
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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：US4659187A
公开(公告)日：1987-04-21
申请号：US546083
申请日：1983-10-27
IPC分类号： G02B1/04 , G02B15/167 , G02B15/173 , G02B15/22 , G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens with a frontmost lens group made to have the focusing function, said focusing lens group being provided with at least one member made of a plastic material. The other part of the lens system than the focusing lens group is constructed with lenses made of materials which assure that the focal length will not vary with variation of the surrounding temperature and humidity so that when focusing is followed by zooming displacement of the image plane can be prevented.
摘要翻译： 具有使聚焦功能具有最前面的透镜组的变焦透镜，所述聚焦透镜组设置有由塑料材料制成的至少一个构件。 透镜系统的其他部分比聚焦透镜组的构造是由材料制成的透镜，这些透镜确保焦距不会随着周围温度和湿度的变化而变化，因此当聚焦后跟着图像平面的变焦位移 被阻止
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公开(公告)号：US4515446A
公开(公告)日：1985-05-07
申请号：US452122
申请日：1982-12-22
IPC分类号： G02B15/20 , G02B15/173 , G02B15/16
CPC分类号： G02B15/173
摘要： A zoom objective comprising four lens groups of which the first three lens groups counting from the object side are movable for zooming, whereby the refractive powers and the conditions of zooming movement of the aforesaid three lens groups are properly specified so as to improve the compactness while still maintaining good correction of aberrations.
摘要翻译： 包括四个透镜组的变焦目标，其中从物体侧计数的前三个透镜组可移动以进行变焦，由此适当地指定上述三个透镜组的屈光力和变焦运动的条件，以便提高紧凑性，同时 仍然保持良好的畸变矫正。
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公开(公告)号：US4696553A
公开(公告)日：1987-09-29
申请号：US471839
申请日：1983-03-03
IPC分类号： G02B15/173 , G02B15/20
CPC分类号： G02B15/173
摘要： A zoom lens having at least four components of which the 1st counting from the object side is of positive power, the 2nd is of negative power and the 3rd and 4th are of positive or negative power, wherein the 2nd component is made fixed, and the 1st component and at least one of those that follow the 2nd component are made movable for zooming, whereby the bulk and size of the lens system is minimized, while still permitting good correction of aberrations.
摘要翻译： 具有至少四个分量的变焦透镜，其中从物体侧进行第一次计数为正功率，第二次为负功率，第三次和第四次为正或负功率，其中第二分量固定， 第一部件和跟随第二部件的那些中的至少一个可以进行变焦，从而使透镜系统的体积和尺寸最小化，同时仍允许良好的像差校正。
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公开(公告)号：US4720180A
公开(公告)日：1988-01-19
申请号：US475532
申请日：1983-03-15
IPC分类号： G02B15/20 , G02B15/173 , G02B15/14 , G02B9/64
CPC分类号： G02B15/173
摘要： The disclosed zoom lens has at least four lens groups with proper refractive powers operating such that while the third lens group counting from front is held stationary, the first and second lens groups and at least one of the fourth lens group and those that follow are moved axially in differential relation to effect zooming. A given range of variation with zooming of the image magnification of the second lens group and a given differential relation for the zooming movement of the first and second lens groups achieve good stability of aberration correction over an extended zooming range.
摘要翻译： 所公开的变焦透镜具有至少四个透镜组，其具有适当的折射力操作，使得当从前方计数的第三透镜组保持静止时，第一透镜组和第四透镜组中的至少一个以及随后的至少一个被移动 轴向差异关系，以实现变焦。 通过第二透镜组的图像放大率的变焦和给定的第一和第二透镜组的变焦运动的差分关系的变化的给定范围实现了在扩展变焦范围上的像差校正的良好稳定性。
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7.发明授权Compact zoom lens having a large aperture and good aberation correction over an extended zooming range 失效紧凑型变焦镜头具有大的光圈和在扩展变焦范围内的良好的像差校正
公开(公告)号：US4749266A
公开(公告)日：1988-06-07
申请号：US552486
申请日：1983-11-16
IPC分类号： G02B15/20 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens including, from front to rear, a first lens group of positive power, a second lens group of negative power, a third lens group of positive power, a fourth lens group of negative power, and a fifth lens group of positive power. For zooming from the shortest focal length to the longest focal length, the first lens group is moved forward, the air space between the first and second lens groups is increased, the air space between the second and the third lens groups is decreased, the air space between the third and fourth lens groups is increased, and the air space between the fourth and fifth lens groups is decreased. The fifth lens group remains stationary during zooming. This construction and arrangement results in a zoom lens of compact form with a large aperture while still permitting good stability of aberration correction throughout a greatly extended zooming range.
摘要翻译： 一种变焦透镜，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，正光焦度的第三透镜组，负功率的第四透镜组和正功率的第五透镜组 。 为了从最短焦距变焦到最长焦距，第一透镜组向前移动，第一和第二透镜组之间的空气空间增加，第二和第三透镜组之间的空气空间减小，空气 第三透镜组和第四透镜组之间的空间增加，并且第四和第五透镜组之间的空气空间减小。 第五个透镜组在变焦期间保持静止。 这种结构和布置导致具有大孔径的紧凑形式的变焦镜头，同时仍然允许在大大延长的变焦范围内的像差校正的良好稳定性。
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公开(公告)号：US4695133A
公开(公告)日：1987-09-22
申请号：US717376
申请日：1985-03-29
IPC分类号： G02B15/20 , G02B15/173 , G02B15/16
CPC分类号： G02B15/173
摘要： The disclosed zoom lens includes, from front to rear, a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power, and a fourth lens unit. When zooming, the first and third lens units are axially moved independently of each other, the second lens unit remains stationary, and the fourth lens unit is axially moved but changes the direction of advance at an intermediate point in the zooming range.
摘要翻译： 所公开的变焦镜头包括从前到后的正功率的第一透镜单元，负功率的第二透镜单元，正光焦度的第三透镜单元和第四透镜单元。 当变焦时，第一透镜单元和第三透镜单元彼此独立地轴向移动，第二透镜单元保持静止，并且第四透镜单元轴向移动，但是在变焦范围的中间点改变前进方向。
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公开(公告)号：US5253005A
公开(公告)日：1993-10-12
申请号：US806786
申请日：1991-12-12
摘要： A small-sized camera in which while the light emerging from a photographic lens having an optical axis parallel with a photosensitive plane is conducted by first and second mirrors to the photosensitive plane to form a photographic system, the first or second mirror is turned around a predetermined axis to conduct the light to an eyepiece lens to form a finder system. And, a structure of construction for efficiently removing the stray light of this camera is disclosed.
摘要翻译： 一种小型照相机，其中当从具有与光敏平面平行的光轴的摄影镜头出射的光由第一和第二反射镜传导到感光平面以形成照相系统时，第一或第二镜转向 预定轴线将光线导向目镜，以形成取景器系统。 并且，公开了一种用于有效地去除该照相机的杂散光的结构的结构。
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10.发明授权Zoom lens capable of selecting a focal length beyond a standard focal length range 失效变焦镜头能够选择超出标准焦距范围的焦距
公开(公告)号：US4865434A
公开(公告)日：1989-09-12
申请号：US782584
申请日：1985-10-01
IPC分类号： G02B15/173
CPC分类号： G02B15/173
摘要： A zoom lens including, from front to rear, a first lens unit of positive power, a second lens unit of negative power and a third lens unit of positive power, wherein for a standard focal length range at least the first and second lens units move simultaneously and independently of each other, and to obtain a focal length beyond the standard range, at least the second lens unit moves, whereby the locus of movement of the first lens unit bends at an end of the standard range, and as the standard range is exceeded, the first lens unit either remains stationary or moves forward.
摘要翻译： 一种变焦透镜，包括从前到后的正功率的第一透镜单元，负功率的第二透镜单元和正光焦度的第三透镜单元，其中对于标准焦距范围，至少第一和第二透镜单元移动 同时且彼此独立，并且为了获得超过标准范围的焦距，至少第二透镜单元移动，由此第一透镜单元的移动轨迹在标准范围的末端弯曲，并且作为标准范围 超过，第一个镜头单元保持静止或向前移动。
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