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    Stereoscopic projecting apparatus
    1.
    发明授权
    Stereoscopic projecting apparatus 失效
    立体投影仪

    公开(公告)号：US4544247A

    公开(公告)日：1985-10-01

    申请号：US563987

    申请日：1983-12-21

    Applicant: Yoshio Ohno ,  Katsuhiko Koyama ,  Kohsaku Nishio

    Inventor： Yoshio Ohno ,  Katsuhiko Koyama ,  Kohsaku Nishio

    IPC: G03B35/16 ,  G03B35/18 ,  G03B35/26 ,  G03B41/08 ,  G03B35/02 ,  G03B41/06

    CPC classification number: G03B35/26 ,  G03B35/18 ,  G03B41/08

    Abstract: A stereoscopic projecting apparatus has a polyhedral prism and two types of polarizing filters which are arranged at the incident (or emerging) planes of the prism and which have orthogonal deflecting directions. Left and right-eye pictures are alternately formed on the consecutive frames of a cinefilm. The cinefilm is driven in such a way as to cross the projection region of light emitted from a lamp. An optical image transmitted from the cinefilm is projected onto a screen by the polyhedral prism, through a relay lens, a projection lens or the like. The left and right-eye images are deflected in directions 90.degree. apart from each other, by the polarizing filters at the respective incident or emerging planes of the prism. A viewer can stereoscopically observe the image superimposed on the screen, using polarized viewing glasses having polarized lenses deflected in the deflecting directions of the images.

    Abstract translation: 立体投影装置具有多棱镜和两种类型的偏振滤光器，它们布置在棱镜的入射（或出现）平面处并具有正交的偏转方向。 左眼图像和右眼图像交替地形成在电影胶片的连续帧上。 电影胶片以这样的方式被驱动，以便穿过从灯发出的光的投影区域。 从电影胶片发送的光学图像通过多面体棱镜通过中继透镜，投影透镜等投射到屏幕上。 通过棱镜的相应入射面或出射平面处的偏振滤光器，左眼和右眼图像在彼此相隔90°的方向上偏转。 观看者可以立体观察叠加在屏幕上的图像，使用具有在图像的偏转方向偏转的偏光镜片的偏振观察眼镜。

    Optical rectification apparatus
    2.
    发明授权
    Optical rectification apparatus 失效
    光整流装置

    公开(公告)号：US4199232A

    公开(公告)日：1980-04-22

    申请号：US873146

    申请日：1978-01-27

    Applicant: Robert A. Olodort

    Inventor： Robert A. Olodort

    IPC: G03B21/10 ,  G03B41/04 ,  G03B41/08

    CPC classification number: G03B41/08 ,  G03B21/10 ,  G03B41/04

    Abstract: When used for projecting or editing motion picture film the optical rectification apparatus produces a stationary image of a frame of a moving film and a succession of superimposed stationary images from successive frames of the moving film. The apparatus employs an optically transmissive hollow cylindrical prism having a cylindrical external surface and an internal surface consisting of a number of facets. Light from the moving film is passed outwardly through the wall of the rotating prism and through a stationary plano-concave cylindrical lens positioned with its concave surface adjacent the external surface of the prism, but spaced slightly from it. The prism is connected to the same shaft as the film sprocket wheel resulting in an isotransport system in which the prism rotates in synchronism with movement of the film to deviate the light through an angle sufficient at each instant to compensate for the angular deviation of the light caused by movement of the film.

    Abstract translation: 当用于投影或编辑电影胶片时，光学整流装置从移动胶片的连续帧产生移动胶片的帧的静止图像和连续的叠加的静止图像。 该装置采用具有圆柱形外表面和由许多小面组成的内表面的透光中空圆柱形棱镜。 来自移动薄膜的光从外部通过旋转棱镜的壁并通过固定的平凹圆柱透镜，其位于其凹表面邻近棱镜的外表面，但与其稍微间隔开。 棱镜连接到与薄膜链轮相同的轴上，从而产生等离子体输送系统，其中棱镜与薄膜的运动同步旋转，以使光在每一时刻足够的角度偏转以补偿光的角度偏差 由电影的运动造成的。

    Lens system
    3.
    发明授权
    Lens system 失效
    镜头系统

    公开(公告)号：US3917388A

    公开(公告)日：1975-11-04

    申请号：US40086573

    申请日：1973-09-26

    Applicant: RINGPRISM PTY LIMITED

    Inventor： ECKSTEIN VICTOR

    IPC: G03B41/08 ,  G03B41/04

    CPC classification number: G03B41/08

    Abstract: A film projector in which light from a light source is transmitted through a gate across which the film is fed. The light is directed through a ring prism comprising two coaxial contra-rotatable prism elements which are rotated in synchronism with the movement of the film. The radially outer surface of the outer prism element and the radially inner surface of the inner prism element are cylindrical. The light is directed through the prism elements in their radially inwards direction and a director element is disposed inside the ring prism to direct the beam of light from the projector. A positionally adjustable magnifying element is disposed between the gate and the ring prism to vary the apparent size of the film frame. A cyclically operating beam sweep element is disposed intermediate the light source and the gate to cause the light falling on any part of the film to illuminate that part alone during its passage across the gate opening.

    Abstract translation: 一种胶片投影仪，其中来自光源的光透过通过薄膜供给的栅极。 光被引导通过环形棱镜，其包括与膜的运动同步地旋转的两个同轴的可反转的棱镜元件。 外棱镜元件的径向外表面和内棱镜元件的径向内表面是圆柱形的。 光沿其径向向内的方向被引导通过棱镜元件，并且引导元件设置在环形棱镜内部以引导来自投影仪的光束。 位于可调节放大元件之间设置在门和环形棱镜之间以改变胶片框架的表观尺寸。 循环操作的光束扫描元件设置在光源和栅极之间，以使得落在膜的任何部分上的光在其通过栅极开口的过程中单独照射该部分。

    Sequential picture apparatus with continuous film feed
    4.
    发明授权
    Sequential picture apparatus with continuous film feed 失效
    连续电影摄影的连续影像设备

    公开(公告)号：US3776622A

    公开(公告)日：1973-12-04

    申请号：US3776622D

    申请日：1972-10-06

    Applicant: BELL & HOWELL CO

    Inventor： BROWDER L

    IPC: G03B41/08 ,  G03B41/04

    CPC classification number: G03B41/08

    Abstract: A sequential picture apparatus, such as a motion picture camera, projector, viewer or scanner, or a microfilm reader, employs a film drive for continuously moving a film. The continuous film motion is compensated by a rotary prism having a predetermined overall diameter and a plurality of facets and having a first axis of rotation. The film is guided adjacent the rotary prism with the film sequentially facing the facets of the prism at the film guiding path. A rotary prism drive device has an effective diameter smaller than the overall diameter of the prism and has a second axis of rotation spaced from the first axis of rotation. The first axis of rotation of the prism extends through the rotary film drive means. The prism drive device is placed into driving engagement with the film adjacent the prism. The prism drive device continuously rotates the prism at the same angular velocity as the prism drive device whereby the prism is driven to compensate the continuous film motion.

    Abstract translation: 诸如电影摄像机，投影仪，观看者或扫描仪或微缩胶片读取器之类的顺序图像装置采用胶片驱动器来连续移动胶卷。 连续膜运动由具有预定总直径和多个小面并具有第一旋转轴线的旋转棱镜补偿。 薄膜在旋转棱镜附近被引导，其中薄膜顺序地面对棱镜的薄片引导路径的小面。 旋转棱镜驱动装置的有效直径小于棱镜的总直径，并且具有与第一旋转轴线间隔开的第二旋转轴线。 棱镜的第一旋转轴线延伸穿过旋转膜驱动装置。 棱镜驱动装置被放置成与邻近棱镜的胶片驱动接合。 棱镜驱动装置以与棱镜驱动装置相同的角速度连续地旋转棱镜，由此驱动棱镜以补偿连续的胶片运动。

    Refractive shutter for rotating prism cameras
    5.
    发明授权
    Refractive shutter for rotating prism cameras 失效
    用于旋转摄像机的折射快门

    公开(公告)号：US3606544A

    公开(公告)日：1971-09-20

    申请号：US3606544D

    申请日：1969-08-18

    Applicant: TRW INC

    Inventor： ARNDT JOSEPH H

    IPC: G03B35/24 ,  G03B41/08 ,  G03B41/06

    CPC classification number: G03B41/08 ,  G03B35/24

    Abstract: A ROTATING PRISM IS USED AS A SHUTTER TO INTERMITTENTLY TRANSMIT LIGHT TO FILM THAT IS MOVED IN TIMED RELATION WITH THE ROTATING PRISM SHUTTER. THE PRISM SHUTTER CONTAINS AN INTERFACE BETWEEN TWO MEDIA OF DIFFERENT INDEX OF REFRACTION. THE INTERFACE ORIENTATION AND THE INDEX OF REFRACTION TO PASS LIGHT ARE ADJUSTED SUCH THAT DESIRABLE LIGHT PASSING THROUGH THE PRISM WILL MEET THE INTERFACE AT AN ANGLE OF INCIDENCE WHICH IS LESS THAN THE CRITICAL ANGLE, AND, HENCE, WILL PASS THROUGH THE INTERFACE. UNWANTED LIGHT WILL BE INCIDENT TO THE INTERFACE AT AN ANGLE GREATER THAN THE CRITICAL ANGLE AND, HENCE, WILL BE TOTALLY REFLECTED AND NOT PASS THROUGH THE INTERFACE.

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