首页> 外国专利> FILM TOUR AND PROJECTOR, CAMERA O.AE. DEVICE WITH SUCH A FURNISHING.

FILM TOUR AND PROJECTOR, CAMERA O.AE. DEVICE WITH SUCH A FURNISHING.

机译：电影巡回演出和投影仪，美国俄亥俄州阿格拉。具有此类家具的设备。

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摘要

A film support element assembly (20) is disclosed, primarily for supporting film (42) in relation to a projection aperture in a motion picture projector having a rolling loop film transport mechanism. In a preferred embodiment the film support element (44; 44 min ) is a so-called "field flattener" and has a cylindrically curved surface over which successive frames in the film are laid by the mechanism. Cleaning means (52, 54; 154, 156; 186, 188; 220, 222; 234; 234 min ) are provided adjacent the film path and the lens element can be displaced to bring a fresh portion of the surface into the film path. At the same time, the cleaning means remove debris from the surface. In one embodiment the lens element (44 min ) is vibrated (234; 234 min ) to discourage adhesion of debris.

机译：公开了一种膜支撑元件组件（20），其主要用于相对于具有卷环膜输送机构的电影放映机中的投影孔支撑膜（42）。在一个优选的实施例中，薄膜支撑元件（44; 44min）是所谓的“场平整器”，并且具有圆柱形弯曲的表面，通过该机构将薄膜中的连续框架放置在该圆柱形弯曲表面上。清洁装置（52、54、154、156、186、188、220、222、234、234分钟）靠近胶片通道设置，透镜元件可以移动以使表面的新鲜部分进入胶片通道。同时，清洁装置从表面清除碎屑。在一实施例中，使镜片元件（44分钟）振动（234; 234分钟）以阻止碎屑的粘附。

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公开/公告号AT40013T

专利类型
公开/公告日1989-01-15

原文格式PDF
申请/专利权人 IMAX SYSTEMS CORPORATION;
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申请/专利号AT19850107043T
发明设计人 SHAW WILLIAM CHESTER;
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申请日1982-08-04
分类号G03B41/02;G03B1/48;
国家 AT
入库时间 2022-08-22 06:37:00

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