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    • 5. 发明授权
    • Method and apparatus for attenuating a light beam
    • 用于衰减光束的方法和装置
    • US5394263A
    • 1995-02-28
    • US54557
    • 1993-04-28
    • John GaltJames Pearman
    • John GaltJames Pearman
    • H04N9/11G02B5/00G02B26/02H04N1/04
    • G02B5/005H04N9/11
    • A light valve for attenuating a collimated light beam contains a focusing lens, a light vane and motor control. The focusing lens contains a focal length and lens diameter. The focusing lens focuses a collimated light beam to generate a light cone such that the dimensions of the light cone are based on the diameter and focal length of the focusing lens. The light vane deflects light within the light cone. The motor is controlled to position the light vane to attenuate the light within the light cone by placing the light vane in at least one position ranging from a zero stop attenuation position to a full stop attenuation position. For a single degree of light vane rotation into the light cone, the light beams is attenuated by three percent. In the zero stop position, the light vane is parallel to an edge of the light cone so that no light is attenuation. In the full stop position, the light vane is located thirty degrees, relative to the zero stop position, into the light cone.
    • 用于衰减准直光束的光阀包括聚焦透镜,光叶片和电动机控制。 聚焦透镜包含焦距和透镜直径。 聚焦透镜将准直光束聚焦以产生光锥,使得光锥的尺寸基于聚焦透镜的直径和焦距。 光叶片将光线偏转在光锥内。 控制电机以通过将光叶片放置在从零停止衰减位置到完全停止衰减位置的至少一个位置来定位光叶片以衰减光锥内的光。 对于单个光叶片旋转到光锥中,光束衰减3%。 在零停止位置,灯叶平行于光锥的边缘,因此没有光衰减。 在完全停止位置,灯叶相对于零停止位置位于三十度,进入光锥。
    • 8. 发明授权
    • Motion picture film composition method
    • 电影胶片组合方法
    • US5563668A
    • 1996-10-08
    • US773963
    • 1991-12-18
    • Yoshio OzakiJohn GaltTomio Omata
    • Yoshio OzakiJohn GaltTomio Omata
    • G03B15/08H04N5/253H04N5/272A63J5/00G03B19/18
    • H04N5/253G03B15/08
    • A motion picture film composition method can be provided in which when a first motion picture film on which a first picture is imaged and a second motion picture on which a second picture is imaged are combined, the first motion picture film is converted into a video signal and processed in accordance with predetermined video signal processing to form an intermediate film and a mask film necessary for film composition, and a latent image obtained by superposing the intermediate film and the mask film and another latent image obtained by superposing the second picture film and the mask film are imaged for double exposure to combine the first motion picture film and the second motion picture film with high accuracy so that a combined motion picture film in which the second picture is superposed on the first picture can be made easily.
    • PCT No.PCT / JP91 / 00342 Sec。 371 1991年12月18日第 102(e)1991年12月18日PCT PCT 1991年3月13日PCT。 公开号WO91 / 14337 日期1991年9月19日可以提供一种电影胶片组合方法,其中当组合有第一影像成像的第一动画影像和其上成像第二画面的第二动画时,第一动画影片 转换为视频信号,并根据预定的视频信号处理进行处理,以形成膜成分所需的中间膜和掩模膜,以及通过叠加中间膜和掩模膜获得的潜像和通过叠加 第二图像胶片和掩模胶片被成像以进行双重曝光,以高精度组合第一电影胶片和第二动画影像胶片,从而可以容易地制作其中第二图像叠加在第一图像上的组合电影胶片 。
    • 10. 发明申请
    • Anamorphic three-perforation imaging system
    • 变形三孔成像系统
    • US20050225726A1
    • 2005-10-13
    • US10927731
    • 2004-08-27
    • Takuo MiyagishimaJohn Galt
    • Takuo MiyagishimaJohn Galt
    • G03B31/02G11B7/003
    • G11B7/0032G03B31/02G03B37/06
    • An anamorphic imaging system is disclosed which maximizes the use of available image area to minimize display magnification and image degradation due to display magnification, reduces the amount of anamorphic squeeze during photography to lower image degradation due to anamorphosis, and in film applications, utilizes a film frame that is only three perforations in height to reduce the amount of original film needed. The frame for either film or digital applications has an aspect ratio of approximately 16:9, is contained within the total available frame area of a three-perforation frame or digital imager, and is sized to maximize image area. In preferred embodiments, the image capture area is approximately 0.900 inches wide by approximately 0.506 inches tall.
    • 公开了一种变形成像系统,其最大限度地利用可用的图像区域以最小化显示放大率和由于显示放大率引起的图像劣化,减少摄影期间的变形挤压量,以降低由于变形造成的图像劣化,并且在膜应用中,利用膜 框架只有三个高度的穿孔,以减少所需的原始胶片的数量。 电影或数字应用的帧具有大约16:9的宽高比,包含在三孔或数字成像器的总可用帧区域内,并且其尺寸被设计成使图像面积最大化。 在优选实施例中,图像捕获区域大约为0.900英寸宽,大约0.506英寸高。