公开(公告)号：US3722988A

公开(公告)日：1973-03-27

申请号：US3722988D

申请日：1971-06-22

Applicant: AGFA GEVAERT AG

Inventor： NEUDECKER K

IPC: G03B21/43 ,  G03B23/00

CPC classification number: G03B21/43

Abstract: A motion picture projector wherein two takeup reels are pivotable about vertical axes together with hollow guide members having inlets movable into and out of register with the slot of a switching device. The housing of the projector supports a set of cassettes which are movable sideways to assume a viewing position and thereupon a rewinding position. An automatic film threading mechanism advances the leader of film in the cassette occupying the viewing position behind the projection lens, through the switching device and into one of the guide members so that the leader is attached to the core of the respective reel. At the same time, a rewinding mechanism transports the film from the core of the other reel into the cassette occupying the rewinding position. The reels and the guide members are pivoted whenever the cassettes are shifted by a step whereby the guide member which moves out of registry with the switching device withdraws the respective film from the slot so that such film can be returned into the respective cassette without passing through the switching device. The latter is pivotable between two end positions to place the outlet of its slot into registry with the inlet of one guide member in one end position and into registry with the inlet of the other guide member in the other end position.

Abstract translation: 一种电影投影仪，其中两个卷取卷轴可围绕垂直轴线枢转，并且具有可移动进入切换装置的槽的入口的空心引导构件。 投影机的外壳支持一组盒，这些盒可以侧面移动以呈现观察位置，并且随后具有重绕位置。 自动薄膜穿线机构使盒子中的胶片领先者通过开关装置进入投影透镜后方的观看位置并进入其中一个引导部件，从而将引导件安装在各个卷轴的芯部上。 同时，倒带机构将膜从另一个卷轴的芯部输送到占据重绕位置的盒中。 每当磁带盒被移动一个台阶时，卷轴和引导构件都可枢转，由此移动离开与切换装置对准的引导构件从狭缝中撤回相应的胶片，使得这种胶片可以不经过通过而返回到相应的盒中 开关装置。 后者可以在两个端部位置之间枢转，以使其狭槽的出口与一个引导构件的入口在一个端部位置对准，并且在另一个端部位置处与另一个引导构件的入口对准。

公开(公告)号：US3764199A

公开(公告)日：1973-10-09

申请号：US3764199D

申请日：1972-03-07

Applicant: AGFA GEVAERT AG

Inventor： NEUDECKER K

IPC: G03B9/10 ,  G02F1/30

CPC classification number: G03B9/10

Abstract: An adjustable shutter for motion picture cameras wherein a disk having a light-admitting aperture rotates with two blades which are movable relative to the disk to thereby overlie varying portions of the aperture. The disk carries a leaf spring having a radially extending slot for a follower pin which extends into arcuate cam slots of the blades and is in frictional engagement with the leaf spring. A shifter is reciprocable in the body of the camera and has two displacing cams one of which can move the follower pin radially outwardly and the other of which can move the follower pin radially inwardly to thereby turn the blades relative to the disk while the disk and the blades rotate. The shifter can be moved by a program wheel to effect gradual changes in the aperture size during the making of exposures with fade-in and/or fade-out effect.

Abstract translation: 一种用于运动摄像机的可调节快门，其中具有光入口的盘旋转，其中两个叶片可相对于盘移动，从而覆盖孔的不同部分。 该盘带有一个板簧，其具有用于随动销的径向延伸的槽，其延伸到叶片的弓形凸轮槽中并且与板簧摩擦接合。 移位器可在照相机的主体中往复运动，并且具有两个位移凸轮，其中一个位移可以径向向外移动从动销，另一个位置可径向向内移动从动销，从而相对于盘旋转叶片， 叶片旋转。 移位器可以通过程序轮移动，以在进行具有淡入淡出效果和/或淡出效果的曝光过程中实现光圈尺寸的逐渐变化。

公开(公告)号：US3712720A

公开(公告)日：1973-01-23

申请号：US3712720D

申请日：1970-09-30

Applicant: AGFA GEVAERT AG

Inventor： WINKLER A ,  ZANNER J ,  WINKLER F ,  NEUDECKER K

IPC: G03B19/18 ,  G03B19/26 ,  G03B21/36

CPC classification number: G03B19/26

Abstract: A motion picture camera wherein the exposures with fade-out effect are automatically followed by a rearward transport of that length of film which was exposed during fade-out and the camera motor is arrested on completion of such rearward transport. The systems which adjust the diaphragm during fade-out, which reverse the direction of operation of the motor subsequent to fade-out, and which stop the motor on completion of rearward transport of the film receive motion from a programming disk which is indexed stepwise in response to operation of the film transporting mechanism as soon as the user moves an actuating knob to an operative position. The exposures with fade-in effect begin on movement of the actuating knob from its operative position and in response to depression of the camera release element.

Abstract translation: 一种电影摄像机，其中具有淡出效果的曝光将自动跟随在淡出期间曝光的该长度的胶片的向后传送，并且在完成这种向后传送时相机电机被捕获。 在淡出期间调节隔膜的系统，其在淡出之后使电动机的操作方向反向，并且在完成向后传送胶片时停止电动机从编程盘接收运动，该程序盘被逐步地索引 一旦用户将致动旋钮移动到操作位置，响应于胶片传送机构的操作。 具有淡入淡出效果的曝光开始于致动旋钮从其操作位置的移动以及响应于相机释放元件的按压。

公开(公告)号：US3817608A

公开(公告)日：1974-06-18

申请号：US31516372

申请日：1972-12-14

Applicant: AGFA GEVAERT AG

Inventor： NEUDECKER K ,  THEER A

IPC: G03B9/10 ,  G03B19/18 ,  G03B17/26

CPC classification number: G03B19/18 ,  G03B9/10

Abstract: A motion picture camera for use with film-containing cassettes having externally applied encoded information which is indicative of the sensitivity of confined film employs a scanning lever or slide which is displaced by the encoded information on a properly inserted cassette and thereby adjusts the size of the opening which is defined by the blades of a rotary shutter. This insures that the length of exposure times is a function of the sensitivity of film in the housing of the camera. A cassette containing highly sensitive film will cause the lever or slide to select relatively long exposure times so that the user can make exposures when the scene light is weak without using an electronic flash unit or an analogous source of artificial light. The exposure times will be relatively short when the camera contains film of average sensitivity which can be used in broad daylight whereby the selection of relatively short exposure times reduces the likelihood that the quality of exposures would be affected by camera shake. The camera is provided with an overriding knob which enables the user to adjust the shutter independently of the sensitivity of film in that cassette which is properly installed in the camera body.

Abstract translation: 用于带有胶卷的盒子的运动图像摄像机，其具有指示受限膜的灵敏度的外部施加的编码信息采用扫描杆或滑块，该扫描杆或滑块被编码信息移位在正确插入的盒上，从而调整 开口由旋转快门的叶片限定。 这确保曝光时间的长短是胶片在相机外壳中的灵敏度的函数。 含有高灵敏度胶卷的盒将导致杠杆或滑动件选择相对长的曝光时间，使得当场景光弱时，用户可以进行曝光，而不使用电子闪光灯组件或类似的人造光源。 当相机包含平均灵敏度的胶片时，曝光时间将相对较短，这些胶片可在宽阔的日光下使用，因此选择相对较短的曝光时间可降低曝光质量将受到相机抖动的影响。 相机设置有一个覆盖旋钮，使用户能够独立于正确安装在照相机机身中的该盒式磁带中的胶片的灵敏度来调节快门。

公开(公告)号：US3712722A

公开(公告)日：1973-01-23

申请号：US3712722D

申请日：1971-03-15

Applicant: AGFA GEVAERT AG

Inventor： NEUDECKER K

IPC: G03B21/32 ,  G03B21/04

CPC classification number: G03B21/323

Abstract: A motion picture projector wherein a reciprocable carriage supports a set of abutting cassettes for motion picture film which is stored therein on supply reels and can be withdrawn through openings in bottom walls of the respective cassettes. The cassettes are insertable directly into the carriage or into a magazine which is removably inserted into the carriage. Each cassette has limited freedom of movement with reference to the carriage. The carriage is movable between several positions in each of which a different cassette occupies a projection position in which the parts of a film threading or withdrawing mechanism can enter the opening of such cassette from below in order to withdraw the leader of convoluted film and to move the leader into the range of a film transporting mechanism. A lever which is pivotable by the advancing mechanism for the carriage enters the opening of the cassette which occupies the projection position to insure that such opening assumes an optimum position with reference to the film withdrawing mechanism, irrespective of eventual deviations of the dimensions of cassettes from a desired dimension. The cassettes are movable with reference to the carriage against the opposition of springs which yield when the lever enters into the opening of a cassette in the projection position to thereby cause a movement of the opening of such cassette into exact registry with the film withdrawing mechanism.

Abstract translation: 一种电动投影仪，其中可往复运动的支架支撑用于电影胶卷的一组邻接盒，该胶卷盒存储在供应卷轴上，并且可以通过各个盒的底壁中的开口抽出。 盒可以直接插入到滑架中或插入到可移除地插入滑架中的盒中。 每个盒子相对于滑架具有有限的移动自由度。 托架可以在多个位置之间移动，在每个位置中，不同的盒子占据一个投影位置，在该突出位置，薄膜穿线或抽出机构的部分可以从下方进入这种盒子的开口，以便抽出卷曲胶卷的引导件并移动 领导进入影片传播机制的范围。 可以通过用于滑架的前进机构枢转的杠杆进入占据突出位置的盒的开口，以确保这样的开口相对于胶片抽出机构呈现最佳位置，而不管盒的尺寸的最终偏差如何 一个理想的尺寸。 盒可以相对于滑架抵靠着弹簧的相对位置而移动，当弹簧杆进入突出位置的盒的开口中时，弹簧产生这种弹性，从而使这种盒的开口移动到与胶片提取机构精确对准的位置。