公开(公告)号：US3860332A

公开(公告)日：1975-01-14

申请号：US47708374

申请日：1974-06-06

申请人： BOSCH PHOTOKINO GMBH

发明人： ZIEGLER KARL

IPC分类号： G03B1/18 ,  G03B1/22

CPC分类号： G03B1/22

摘要： An intermittent for stepwise transport of film in cinematographic apparatus or printers has a shuttle with a filmengaging claw and a rotary advancing cam with an endless cam face having sections whose configuration satisfies a higher order sine curve and which are tracked by a follower of the shuttle while the claw moves in or counter to the direction of film transport. A first section is tracked by the follower after the claw penetrates into a perforation of the film under the action of an in-out cam and while the claw moves toward engagement with film at the leading end of the perforation. A second section is tracked by the follower while the claw advances the film forwardly; a third section is tracked by the follower while the claw moves rearwardly and away from the film upon completion of a forward stroke but prior to withdrawal of the claw from the perforation by the in-out cam; and a fourth section is tracked by the follower while the claw moves counter to the direction of film transport to move into register with a further perforation.

摘要翻译： 用于在电影摄影装置或打印机中逐步传送胶片的间歇性具有带有胶片接合爪的梭子和具有环形凸轮面的旋转进给凸轮，该环形凸轮面具有满足高阶正弦曲线的部分，并且被跟随者跟踪 穿梭时，爪子移动或抵消胶片运送的方向。 爪子在入口凸轮的作用下穿透薄膜的过程中以及在穿孔的前端与薄膜接合时，由跟随器跟踪第一部分。 第二部分由追随者跟踪，而爪向前推动胶片; 在向前行程完成时，但是在通过进出凸轮从穿孔中取出爪之前，爪从跟随器跟踪的第三部分被跟踪，同时爪向后移动并远离胶片。 并且第四部分由跟随者跟踪，而爪相对于胶片传送的方向移动以进一步穿孔注入。

公开(公告)号：US3860331A

公开(公告)日：1975-01-14

申请号：US45159274

申请日：1974-03-15

申请人： BOSCH PHOTOKINO GMBH

发明人： FLECK WERNER ,  WEINBRECHT ERWIN ,  BORNER GERHARD

IPC分类号： G03B1/56 ,  G03B31/02 ,  G03B31/00

CPC分类号： G03B1/56 ,  G03B31/02

摘要： A sound projector for motion picture film wherein the standard distance between film frames and the corresponding portions of the sound track is maintained during rewinding of film onto the supply reel, even if the film is damaged in the region of several successive perforations. The film which is being withdrawn from the takeup reel engages a sprocket prior to passing around a drum forming part of the sound reproducing unit. The film thereupon reengages the sprocket before it reaches the film gate. Two spring-biased rollers tension the film between the drum and the sprocket. When the motor for the sprocket is operated in reverse, a slide engages and holds the shafts of tensioning rollers in predetermined positions to thus insure that a portion of recorded sound is adjacent to the drum while the corresponding film frame registers with the film gate.

摘要翻译： 一种用于电影胶片的声音投影仪，其中即使胶片在几个连续穿孔的区域中被损坏，胶片框架和声轨的相应部分之间的标准距离也保持在胶卷到供带盘上。 从卷取卷轴取出的胶片在形成声音再现单元的一部分的鼓之前绕过链轮。 这部电影在到达电影门之前重新链接了链轮。 两个弹簧偏置的滚轮在滚筒和链轮之间拉紧薄膜。 当用于链轮的电动机反向操作时，滑块将张紧辊的轴接合并保持在预定位置，从而确保一部分记录的声音与滚筒相邻，同时相应的胶片框架与胶片门对准。

公开(公告)号：US3860196A

公开(公告)日：1975-01-14

申请号：US30041672

申请日：1972-10-17

申请人： BOSCH PHOTOKINO GMBH

发明人： KRUMBEIN FRITZ

IPC分类号： G03B1/56 ,  G03D13/00 ,  G11B15/67 ,  G03B1/58 ,  G03B1/04

CPC分类号： G11B15/67 ,  G03B1/56 ,  G03D13/003

摘要： The leader of convoluted motion picture film which is stored on a supply reel in a motion picture camera or projector is automatically intercepted and advanced in a direction toward a takeup reel by a composite intercepting device having a hook which can enter a perforation of the leader while the supply reel rotates in a direction to collect the film. The intercepting device can be moved from an inoperative position by way of a manually operated actuating device which causes a driving wheel to engage a convex surface of the intercepting device whereby the hook of the intercepting device automatically moves toward a catching position in which it bears against the outermost convolution of the film and enters the oncoming perforation. The rotating supply reel causes the intercepted leader to disengage the convex surface from the driving wheel and to move a concave surface of the intercepting device into engagement with the driving wheel whereby the intercepting device, with the leader attached to its hook, automatically returns to its inoperative position. The hook inserts the leader into the nip of two advancing rolls which disengage the leader from the hook and advance the leader toward a takeup reel. The motor for the driving wheel is started in response to movement of the intercepting device from inoperative position and is automatically arrested when the intercepting device reassumes its inoperative position or when the user returns the actuating device to an idle position.

摘要翻译： 存储在电影照相机或投影仪的供带盘上的卷积电影胶片的领导者通过具有可以进入导片的穿孔的钩子的复合拦截装置被自动地拦截并朝向卷绕卷轴的方向前进，同时 供带盘沿收集薄膜的方向旋转。 拦截装置可以通过手动操作的致动装置从非工作位置移动，该致动装置使得驱动轮接合拦截装置的凸形表面，由此拦截装置的钩自动朝着捕获位置移动， 胶片的最外圈卷入并进入迎面而来的穿孔。 旋转的供给卷轴使被截取的引导件将凸表面与驱动轮分离，并使拦截装置的凹表面移动到与驱动轮接合，由此引导件附接到其钩的拦截装置自动返回到其 无效位置。 钩将引导件插入两个前进辊的辊隙中，这两个前进辊将引导件与钩分离，并使引导件朝向收紧卷轴移动。 用于驱动轮的电机响应于拦截装置从不工作位置的移动而启动，并且当拦截装置重新启动其不工作位置时或者当使用者将致动装置返回到空转位置时，该马达自动停止。

公开(公告)号：US3829039A

公开(公告)日：1974-08-13

申请号：US28438072

申请日：1972-08-28

申请人： BOSCH PHOTOKINO GMBH

发明人： KRUMBEIN F

IPC分类号： G03B19/18 ,  G03B21/43 ,  G03B1/04 ,  G11B15/32

CPC分类号： G03B19/18 ,  G03B21/43

摘要： A motion picture projector wherein a stripping mechanism threads the leader of motion picture film has a manually operable lever which carries a friction coupling serving to rotate the shaft for the core of the supply reel in a direction to collect the film while the band of the stripping mechanism engages the outermost film convolution. The coupling becomes ineffective when the convolutions of the film are tightly packed around the core of the supply reel. The shaft for the supply reel can be rotated by the motor which drives the coupling when the operation of the motor is reversed whereby the supply reel collects the film by drawing it off the takeup reel.

摘要翻译： 一种电影投影机，其中剥离机构螺纹电影胶片的前导件具有可手动操作的杠杆，该杠杆承载摩擦联接器，用于沿着收集胶片的方向旋转供应卷轴的芯部的轴线，同时剥离带 机构接合最外面的膜卷积。 当膜的卷绕紧密地包装在供应卷轴的芯部周围时，耦合变得无效。 当电动机的操作反转时，用于供应卷轴的轴可以由驱动联接器的电动机旋转，由此供给卷轴通过从卷取卷轴上拉出而收集胶卷。

公开(公告)号：US3825329A

公开(公告)日：1974-07-23

申请号：US34281273

申请日：1973-03-19

申请人： BOSCH PHOTOKINO GMBH

发明人： HEINRICH F ,  KIEFER H

IPC分类号： G03B7/08 ,  G03B7/085 ,  G03B19/18 ,  G03B21/44 ,  H02P7/29

CPC分类号： G03B7/085 ,  G03B7/0807 ,  G03B19/18

摘要： A motion picture camera is adapted to operate at a first and second film speed and requires a first and second aperture size at the first and second film speed, respectively. A speed regulator regulates the speed of the camera to the first and second speed, respectively, when connected to the battery through a first and second resistor, respectively. Aperture control means open the aperture to the aperture size corresponding to the first film speed when connected to the battery through a third resistor and open the aperture to the second aperture size corresponding to the second film speed when connected to the source of electrical energy through a fourth resistor. First, second, third and fourth transistors connect the corresponding respective resistors to the battery when in a conductive state. A speed selector switch is externally operable to select the first or second speed. Connected to the speed selector switch is a control transistor which is interconnected with the bases of the first, second, third and fourth transistors in such a way that the first and third resistor is connected to the battery when the speed selector switch is in the first position and that the second and fourth transistors are conductive when the speed selector switch is in the second position.

公开(公告)号：US3790264A

公开(公告)日：1974-02-05

申请号：US3790264D

申请日：1972-06-08

申请人： BOSCH PHOTOKINO GMBH

发明人： HEINRICH F

IPC分类号： G03B19/18 ,  G03B1/00

CPC分类号： G03B19/18

摘要： Activation of the camera release button causes a first transistor to become fully conductive, furnishing a high energizing current to the release magnet. A timing circuit connected to the transistor causes cut-off of the transistor after a predetermined time interval. A second transistor furnishing a decreased holding current then becomes activated. A Zener diode serves to stabilize the voltage for both transistors, causing the circuit to be independent of battery voltage variations.

摘要翻译： 激活相机释放按钮使得第一晶体管变得完全导电，向释放磁体提供高能量电流。 连接到晶体管的定时电路在预定时间间隔之后导致晶体管截止。 提供降低的保持电流的第二晶体管被激活。 齐纳二极管用于稳定两个晶体管的电压，导致电路与电池电压变化无关。

公开(公告)号：US3759615A

公开(公告)日：1973-09-18

申请号：US3759615D

申请日：1970-07-06

申请人： BOSCH PHOTOKINO GMBH

IPC分类号： G03B13/36 ,  G01C3/10 ,  G02B7/32 ,  G01C3/08

CPC分类号： G02B7/32 ,  G01C3/10

摘要： A photoelectric range finder wherein the differential circuit contains four photoelectric receivers connected in twos in two branches of the circuit. Each receiver of one branch is paired with a receiver of the other branch and the two pairs of receivers are mirror symmetrical to each other. Each of two mirror symmetrical beams of light which is reflected by the selected portion of an object is directed against one of the two pairs of receivers. The circuit is balanced when exactly one-half of each beam impinges upon each of the respective pair of receivers regardless of eventual lack of uniformity of light intensity in various parts of the light beams. The circuit can be used to adjust the position of an objective in a camera or projector.

摘要翻译： 一种光电测距仪，其中差分电路包含在电路的两个分支中以两个连接的四个光电接收器。 一个分支的每个接收机与另一个分支的接收机配对，两对接收机彼此镜像对称。 由对象的所选部分反射的两个镜对称光束中的每一个针对两对接收器之一。 当光束的每一个入射到相应的一对接收器的每一个正好一半时，该电路是平衡的，而不管光束的各个部分中光强度的最终均匀性如何。 该电路可用于调整相机或投影机中物镜的位置。

公开(公告)号：US3738238A

公开(公告)日：1973-06-12

申请号：US3738238D

申请日：1971-04-01

申请人： BOSCH PHOTOKINO GMBH

发明人： HAGER K

IPC分类号： G03B11/04 ,  G03B13/26 ,  G03B

CPC分类号： G03B13/26 ,  G03B11/046

摘要： The eyecup which surrounds the eyepiece of the viewfinder in a reflex camera has an elastic extension provided with a plug which can be fitted into an opening in the rear of the eyepiece to prevent entry of light into the viewfinder. The plug has a handgrip portion which can be grasped by fingers to facilitate its withdrawal from or insertion into the opening.

摘要翻译： 在反光相机中围绕取景器的目镜的眼罩具有弹性延伸部，该弹性延伸部设置有可插入到目镜后部的开口中的插头，以防止光进入取景器。 插头具有手指部分，该手柄部分可以用手指抓住以便于其从开口中撤出或插入开口中。

公开(公告)号：US3601025A

公开(公告)日：1971-08-24

申请号：US3601025D

申请日：1969-03-07

申请人： BOSCH PHOTOKINO GMBH

发明人： STIERINGER ALBERT

IPC分类号： G03B7/00 ,  G03B17/08 ,  G03B19/04

CPC分类号： G03B7/24 ,  G03B7/00 ,  G03B17/08

摘要： A photographic camera which utilizes magazines provided with markers indicating the sensitivity of film therein. The marker of a magazine which is inserted into the camera is scanned by a scanning member which is coupled to the door-locking device of the camera by a looped snapover spring. When the locking device is moved by hand to an inoperative position in which the user can open the door to gain access to the magazine in a camera housing, the spring biases the scanning member to a predetermined starting position. When the door is closed and the user moves the locking member toward operative position, the spring snaps over and shifts the scanning member into engagement with the marker of the inserted magazine. The spring then biases the scanning member against the marker and simultaneously opposes movement of the locking member from operative position.

公开(公告)号：US3875490A

公开(公告)日：1975-04-01

申请号：US46138674

申请日：1974-04-16

申请人： BOSCH PHOTOKINO GMBH

发明人： ACKERMANN KARL

IPC分类号： H02J7/00 ,  H02J7/10

CPC分类号： H02J7/0091 ,  H02J7/008

摘要： A full-wave rectifier connected to an AC source supplies a pulsating DC voltage. A thyristor is interconnected between the output of the rectifier and the battery. A voltage divider including a capacitor and the emitter-collector circuit of a transistor is connected across the output of the rectifier. The voltage divider has tap connected to the gate of the thyristor. A voltage proportional to the battery voltage is applied to the base of the transistor. Variations in the emitter-collector resistance of the transistor, which correspond to changes in the battery output voltage determine the cut-in time of the thyristor. When the battery voltage is sufficiently high the thyristor blocks completely.

摘要翻译： 连接到交流电源的全波整流器提供脉动直流电压。 晶闸管在整流器的输出和电池之间互连。 包括电容器的分压器和晶体管的发射极 - 集电极电路跨过整流器的输出端连接。 分压器分接头连接到晶闸管的栅极。 与电池电压成比例的电压被施加到晶体管的基极。 晶体管的发射极 - 集电极电阻的变化对应于电池输出电压的变化决定了晶闸管的截止时间。 当电池电压足够高时，晶闸管完全阻塞。