公开(公告)号：US3785265A

公开(公告)日：1974-01-15

申请号：US3785265D

申请日：1973-05-25

Applicant: SOPELEM

Inventor： LARDEAU J

IPC: G03B9/00 ,  G03B9/08 ,  G03B19/18 ,  H04N5/238 ,  G03B9/06

CPC classification number: G03B9/08 ,  G03B19/18

Abstract: An iris diaphragm includes shutter blades moved by a conventional control member during a first phase of adjustment to reduce the aperture to a size at which diffraction effects are still unimportant. In a second phase of adjustment the shutter blades are stationary and a transparent support member is moved to introduce increasingly dense portions of a graduated filter into the optical path. Light control over a range of 1:1,000,000 may thus be obtained. There may follow a third phase in which the shutter blades again move to reduce the aperture to zero. The blades and the filter support may be placed on opposite sides of a permanent stop and actuated by respective control members coupled to a common setting ring. Alternatively the blades and filter support may be on the same side of the stop and actuated by a common control member. The filter support may be introduced into the optical path only after the first phase has ended, or a transparent portion thereof may be always in the optical path, the filter-carrying portion being brought into action only during the second phase.

Abstract translation: 虹膜光阑包括在调节的第一阶段期间由常规控制构件移动的快门叶片，以将孔径减小到衍射效应仍然不重要的尺寸。 在调节的第二阶段中，快门叶片是静止的，并且透明支撑构件被移动以将渐变过滤器的越来越致密的部分引入到光路中。 因此可以获得1：1,000,000范围内的光控制。 可能会遵循第三阶段，其中快门叶片再次移动以将孔径减小到零。 叶片和过滤器支撑件可以被放置在永久性止动件的相对侧上，并由耦合到公共设定环的相应控制构件致动。 或者，叶片和过滤器支撑件可以在止动件的同一侧上并且由公共控制构件致动。 只有在第一阶段结束之后，滤光器支架才可以被引入到光路中，或者其透明部分总是在光路中，仅在第二阶段期间使滤光器承载部分起作用。

公开(公告)号：US3814853A

公开(公告)日：1974-06-04

申请号：US30629772

申请日：1972-11-14

Applicant: SOPELEM

Inventor： LARDEAU J

IPC: G03B15/12 ,  G03B31/02 ,  H01J29/89

CPC classification number: G03B15/12 ,  G03B31/02

Abstract: A variable feed mixer which includes two semi-reflective blocks for location in front of a television camera lens focussed for infinity and defining three injection apertures for receiving images from three sources, a variable focal length lens of the zoom type generally comprising a primary lens associated with the varying element, the primary lens having been removed being positioned in front of one of the injection apertures.

Abstract translation: 一种可变进料混合器，其包括用于位于电视摄像机透镜前面的两个半反射块，其聚焦​​无限远并且限定三个注射孔，用于从三个源接收图像，变焦类型的可变焦距透镜通常包括主要透镜相关联 随着变化的元件，已经移除的主要透镜被定位在一个注入孔的前面。