Small-sized camera
    2.
    发明授权
    Small-sized camera 失效
    小型相机

    公开(公告)号:US5253005A

    公开(公告)日:1993-10-12

    申请号:US806786

    申请日:1991-12-12

    IPC分类号: G03B17/17 G03B19/12

    CPC分类号: G03B19/12 G03B17/17

    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。

    Optical system for stabilizing an image
    3.
    发明授权
    Optical system for stabilizing an image 失效
    用于稳定图像的光学系统

    公开(公告)号:US5270857A

    公开(公告)日:1993-12-14

    申请号:US261231

    申请日:1988-10-24

    IPC分类号: G02B27/64

    CPC分类号: G02B27/646

    摘要: An image stabilizing system includes a photographic lens device having a plurality of lens units, wherein for zooming at least one lens unit separation varies, a detecting circuit for detecting the jiggle of the system, and a drive device for driving at least one lens unit in a direction perpendicular to a photographic optical axis of the photographic lens device on the basis of an output of the detecting circuit to stabilize an image.

    摘要翻译: 一种图像稳定系统包括具有多个透镜单元的摄影透镜装置,其中,用于变焦的至少一个透镜单元分离变化,用于检测系统的抖动的检测电路,以及用于驱动至少一个透镜单元的驱动装置 根据检测电路的输出,垂直于摄影透镜装置的摄影光轴的方向,以稳定图像。

    Zoom lens
    5.
    发明授权
    Zoom lens 失效
    变焦镜头

    公开(公告)号:US4629294A

    公开(公告)日:1986-12-16

    申请号:US622713

    申请日:1984-06-20

    CPC分类号: G02B15/173

    摘要: A zoom lens includes, from front to rear, a positive first component, a negative second component, a positive third component and a positive or negative fourth component. The first, third and fourth components are movable to vary the focal length of the entire system. In the wide angle position, the image modification of the third component contributes to the ratio of the focal length of the third component to the focal length of the fourth component, and the ratio of that fraction of the zoom ration of the entire system which the second component assumes to the zoom ratio of the entire system, satisfies specific conditions such that minimization of the bulk and size of the zoom lens and a stabilized correction of aberrations are achieved.

    摘要翻译: 变焦透镜从前到后包括正的第一分量,负的第二分量,正的第三分量和正或负的第四分量。 第一,第三和第四组件可移动以改变整个系统的焦距。 在广角位置,第三分量的图像修正有助于第三分量的焦距与第四分量的焦距的比率,以及整个系统的变焦比率的比率 第二分量假定为整个系统的变焦比,满足特定条件,使得实现变焦透镜的体积和尺寸的最小化以及稳定的像差校正。

    Finder of variable magnification
    6.
    发明授权
    Finder of variable magnification 失效
    Finder的可变放大倍数

    公开(公告)号:US4842395A

    公开(公告)日:1989-06-27

    申请号:US159471

    申请日:1988-02-19

    CPC分类号: G02B15/177 G02B23/145

    摘要: The disclosed variable magnification finder includes, from front to rear, a first lens unit of negative power, a second lens unit of positive power, a third lens unit of positive power, the first, second and third lens units constituting an objective lens of positive power, and an eyepiece of positive power. The first and second lens units form a finder image on a plane just in front of the third lens unit. The second lens unit is moved axially forward to increase the image magnification, while the shift of diopter of the finder is simultaneously compensated for by moving the first lens unit.

    摘要翻译: 所公开的可变倍率取景器包括从前到后的负功率的第一透镜单元,正光焦度的第二透镜单元,正光焦度的第三透镜单元,构成正的物镜的第一,第二和第三透镜单元 权力和一个正面力量的目镜。 第一和第二透镜单元在刚好在第三透镜单元前面的平面上形成取景器图像。 第二透镜单元轴向移动以增加图像放大率,同时通过移动第一透镜单元来同时补偿取景器的屈光度偏移。

    Compact zoom lens
    7.
    发明授权
    Compact zoom lens 失效
    紧凑型变焦镜头

    公开(公告)号:US4666257A

    公开(公告)日:1987-05-19

    申请号:US705565

    申请日:1985-02-26

    CPC分类号: G02B15/173

    摘要: A compact zoom lens including, 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, if desired, further a fourth lens unit, with the separations between the first and second units, between the second and third units and between the third and fourth units being made variable to vary the focal length of the entire system, wherein as the focal length is varied from the shortest to the longest value, the first and third units move axially forward, and the third unit is provided with a positive lens having an aspherical surface.

    摘要翻译: 一种紧凑型变焦透镜,包括从前到后具有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,以及如果需要的话,还具有第四透镜单元, 在第二单元和第三单元之间以及第三单元和第四单元之间的第一单元和第二单元是可变的,以改变整个系统的焦距,其中当焦距从最短到最长值变化时,第一和第三单元 单元轴向向前移动,并且第三单元设置有具有非球面的正透镜。

    Zoom lens capable of selecting a focal length beyond a standard focal
length range
    8.
    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。

    Zoom lens capable of obtaining focal lengths beyond a variable focal
length range
    9.
    发明授权
    Zoom lens capable of obtaining focal lengths beyond a variable focal length range 失效
    变焦镜头能够获得超过可变焦距范围的焦距

    公开(公告)号:US4830477A

    公开(公告)日:1989-05-16

    申请号:US724280

    申请日:1985-04-17

    CPC分类号: G02B15/173

    摘要: A zoom lens comprising, from front to rear, a first zoom section and a second zoom section, the first zoom section having a plurality of movable lens units which simultaneously move to effect zooming, and the second zoom section having a plurality of axially movable lens units, the light beam exiting from the rearmost unit in the first section enters directly the frontmost unit in the second section, and the refractive powers of the front and rear lens units are made positive and negative respectively, whereby the front and rear lens units are simultaneously moved in such a way that the magnifying power of the rear lens unit remains positive when the focal length of the entire system varies.

    摘要翻译: 一种变焦透镜,包括从前到后的第一变焦部分和第二变焦部分,所述第一变焦部分具有同时移动以实现变焦的多个可移动透镜单元,并且所述第二变焦部分具有多个可轴向移动的透镜 在第一部分中从最后面单元排出的光束直接进入第二部分中的最前面的单元,并且前后透镜单元的折射力分别为正负透镜单元, 同时移动,使得当整个系统的焦距变化时,后透镜单元的放大倍率保持为正。