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公开(公告)号：US4717929A
公开(公告)日：1988-01-05
申请号：US843629
申请日：1986-03-25
Applicant: Norifumi Nakagawa , Toyonori Sasaki , Kunio Matsumoto
Inventor： Norifumi Nakagawa , Toyonori Sasaki , Kunio Matsumoto
CPC classification number: G03B7/24
Abstract: In order to make possible the automatic setting of the sensitivity of a film to be used in an exposure controlling system by a simplified structure manufacturable at a low cost, the camera auto sensing system for ISO speed comprises: a pair of switches rendered to either a conductive state or a non-conductive state by judging a digital pattern indicative of the film sensitivities provided on a film cartridge mounted in a camera; a pair of electromagnets connected to respective switches; a film sensitivity changing lever coupled to the armatures of the respective electromagnets so as to be allowed to be moved to four positions in accordance with the operative state and the non-operative state of the respective electromagnets; and light amount changing means coupled to the film sensitivity changing lever to change the amount of light incident to an exposure-controlling light-receiving device in accordance with the movement of the changing lever. Thus, in this system, the sensitivity of the film to be used is sensed and set to the exposure-controlling system at each shutter release.
Abstract translation: 为了能够通过以低成本制造的简化结构自动设定要在曝光控制系统中使用的胶片的感光度，用于ISO感光度的照相机自动感测系统包括：一对开关， 通过判断指示安装在照相机中的胶卷暗盒上提供的胶片敏感度的数字图案来确定导电状态或非导通状态; 一对连接到相应开关的电磁铁; 电影灵敏度变化杆，其耦合到各个电磁体的电枢，以便根据各个电磁体的操作状态和非操作状态被允许移动到四个位置; 以及光量改变装置，其耦合到胶片感光度变换杆，以根据变化杆的移动改变入射到曝光控制光接收装置的光量。 因此，在该系统中，在每个快门释放时感测并设置到曝光控制系统的胶片的灵敏度。
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公开(公告)号：US4695887A
公开(公告)日：1987-09-22
申请号：US930199
申请日：1986-11-13
Applicant: Dean M. Peterson
Inventor： Dean M. Peterson
CPC classification number: G03B9/12 , H04N5/2254 , H04N5/2353
Abstract: A compact video camera which is operable at continuously variable shutter speeds to capture high speed events which may be recorded and played back in slow motion for scene analysis. The video camera includes an image sensor, a zoom lens, and a rotating shutter which is continuously adjustable to different shutter speeds. The camera components are dimensioned and configured in a compact design for easy-to-use hand-held operation. The shutter includes a pair of rotating shutter discs having openings which are selectively adjustable relative to each other to vary the interval during which the imager sensor is exposed to a scene projected onto it by the zoom lens. The shutter discs are mounted on a pair of spaced, hollow shafts. Adjustment of the relative rotational position of the two discs to control the size of the relative shutter opening is effected by a push rod linked to and slidably mounted within the hollow shafts. Axial movement of the push rod in response to a change in sensor signal intensity varies the opening defined by the two shutters.
Abstract translation: 一种紧凑型摄像机，可以以连续不变的快门速度操作，以捕获可以以慢动作记录和播放的场景分析的高速事件。 视频摄像机包括图像传感器，变焦镜头和可连续调节到不同快门速度的旋转快门。 相机组件的尺寸和配置采用紧凑的设计，便于手持操作。 快门包括一对旋转快门盘，其具有相对于彼此可选择性地调节的开口，以改变成像器传感器暴露于由变焦镜头投影到其上的场景的间隔。 快门盘安装在一对间隔开的空心轴上。 通过连接到并可滑动地安装在空心轴内的推杆来实现两个盘的相对旋转位置的调整以控制相对快门开口的尺寸。 响应于传感器信号强度的变化，推杆的轴向运动改变了由两个百叶窗限定的开口。
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公开(公告)号：US4576456A
公开(公告)日：1986-03-18
申请号：US550237
申请日：1983-11-08
Applicant: Tadashi Okino , Syuichiro Saito
Inventor： Tadashi Okino , Syuichiro Saito
CPC classification number: G03B9/16
Abstract: An image sensing system having an image sensing part for sensing the image of an object to be photographed, two shutter blades which block image light, two motors arranged to drive the two shutter blades respectively and a control circuit arranged to keep a turning phase difference unvarying between the two motors.
Abstract translation: 一种图像感测系统，其具有用于感测要拍摄的物体的图像的图像感测部分，用于阻挡图像光的两个快门叶片，分别驱动两个快门叶片的两个马达和布置成保持转向相位差不变的控制电路 两台电机之间。
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公开(公告)号：US4394082A
公开(公告)日：1983-07-19
申请号：US225524
申请日：1981-01-16
Applicant: Michio Senuma , Kunio Watanabe
Inventor： Michio Senuma , Kunio Watanabe
Abstract: The shutter blades of a camera are made lighter in weight in order to reduce the driving power needed to obtain a desired running speed by forming the shutter blades of a metal coated plastic sheet member which may be painted black in order to prevent light reflection, with the thickness of the metal coating being between 0.001 to 0.005 mm.
Abstract translation: 相机的快门叶片重量更轻，以便通过形成金属涂覆的塑料片部件的快门叶片来减少所需的驱动力，以获得所需的行进速度，其可以被涂黑以防止光反射， 金属涂层的厚度在0.001至0.005mm之间。
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55.发明授权
公开(公告)号：US4393403A
公开(公告)日：1983-07-12
申请号：US267215
申请日：1981-05-26
Applicant: Hans P. Geis , Holger Helber
Inventor： Hans P. Geis , Holger Helber
CPC classification number: H04N5/2254 , G01J5/62 , H04N5/33
Abstract: By rotating a diaphragm in front of a pickup device, for example a pyroelectric vidicon, eddy currents are generated in the diaphragm if the diaphragm is made of a metal. These eddy currents are generated as a result of the interaction between the moving diaphragm and the magnetic field of the deflection coils of the vidicon. If the diaphragm is instead made of an insulating material, separation of charges occurs on it as a result electrostatic generation, due to the interaction between the diaphragm and the electrostatic field of the vidicon. Compensation of the charge separation causes interference in the video signal. According to the invention a diaphragm of an insulating material is used which is covered with a pattern of electrically conductive tracks or a very high resistance layer. As a result of this no eddy currents and no noteworthy electrostatic charges can occur, so that an interference-free video signal is obtained.
Abstract translation: 如果隔膜由金属制成，则通过在拾取装置的前面旋转隔膜，例如热电伏隔膜，在隔膜中产生涡流。 这些涡流是由于移动光阑与摄像机的偏转线圈的磁场之间的相互作用而产生的。 如果膜片由绝缘材料制成，则由于膜片和静电场的静电场之间的相互作用，电荷分离会导致静电产生。 电荷分离的补偿会导致视频信号的干扰。 根据本发明，使用绝缘材料的隔膜，其被导电迹线图案或非常高的电阻层覆盖。 作为这样的结果，不会产生涡流，并且不会发生值得注意的静电电荷，从而获得无干扰的视频信号。
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Patent Agency Ranking
公开(公告)号：US4349264A
公开(公告)日：1982-09-14
申请号：US231040
申请日：1981-02-04
Applicant: Nobuo Tezuka , Michio Hirohata
Inventor： Nobuo Tezuka , Michio Hirohata
Abstract: In an electromagnetically driven shutter of the type having a shutter driving rotor arranged to rotate on the optical axis of a photograph-taking lens, the shutter driving rotor is provided with a circular opening and is formed into an approximately rhombic shape consisting of circumferential parts which are concentric with the circular opening and straight parts which extend in the tangential directions of the circumferential parts. A conductor coil is provided along the periphery of the shutter driving rotor. A magnetic field is arranged to act on the straight parts of the coil to rotate the rotor upon supply of electrical energy.
Abstract translation: 在具有布置成在摄影镜头的光轴上旋转的快门驱动转子的类型的电磁驱动的快门中，快门驱动转子设置有圆形开口，并且形成为由圆周部分组成的大致菱形， 与圆形开口和沿周向部分的切线方向延伸的直线部分同心。 沿着快门驱动转子的周边设置导体线圈。 磁场被布置成作用在线圈的直线部分上以在供应电能时旋转转子。
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公开(公告)号：US4330183A
公开(公告)日：1982-05-18
申请号：US190860
申请日：1980-03-07
Applicant: Erich Kastner
Inventor： Erich Kastner
IPC: G03B19/18 , C04B35/524 , G02B5/08 , G03B9/10
CPC classification number: C04B35/524 , G02B5/08 , Y10T428/30
Abstract: Reflex devices, preferably on cinematographic and photographic cameras with rotating, oscillating or displaceable retracting mirrors are easier to balance the lighter the dynamically operated reflecting mirror is in weight. The weight reduction is achieved by using pure carbon, preferably in the form of glass-like carbon, for the mirror carrier material. The pores in the micro range exposed at the polished surface during the precision treatment are eliminated by an additional vacuum treatment in the production of the three-dimensionally cross-linked plastics intermediate product.
Abstract translation: PCT No.PCT / DE79 / 00070 Sec。 371日期1980年3月7日 102（e）1980年3月6日PCT PCT。 公开号WO80 / 00194 日期1980年2月7日。反射装置，优选地在具有旋转，摆动或可移位的后退镜的电影和照相机上更容易平衡动态操作的反射镜的重量。 重量减轻通过使用优选为玻璃状碳的纯碳作为镜载体材料来实现。 通过在三维交联的塑料中间产品的生产中的另外的真空处理，消除了精密处理期间在抛光表面暴露的微观孔隙。
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公开(公告)号：US4325619A
公开(公告)日：1982-04-20
申请号：US205209
申请日：1980-11-07
Applicant: Bernard A. Seckendorf , Jack W. Kalbfeld
Inventor： Bernard A. Seckendorf , Jack W. Kalbfeld
CPC classification number: G03B19/023 , G03B17/26 , G03B9/10
Abstract: A wrist camera having a cassette housing for receiving a cassette, and a front housing enclosing a shutter assembly. The cassette includes a gear cup for holding a film in a recess of a first cassette disc, and a second cassette disc rotatably held in the first cassette disc. The cassette discs have projections cooperating with one another and with a projection in the front housing, to enable alignment of apertures therein. The shutter in the front housing has magnets cooperating with a magnet on an actuator, to open the optical axis by a magnetic repulsion force, as well as by a magnetic attraction force.
Abstract translation: 一种具有用于容纳盒的盒壳体的手腕相机和包围快门组件的前壳体。 盒包括用于将膜保持在第一盒式盘的凹部中的齿轮杯，以及可旋转地保持在第一盒式盘中的第二盒式盘。 盒式盘具有彼此协作并具有在前壳体中的突起的凸起，以使得孔中的对准。 前壳体中的挡板具有与致动器上的磁体配合的磁体，以通过磁力排斥力以及通过磁吸引力来打开光轴。
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公开(公告)号：US4319823A
公开(公告)日：1982-03-16
申请号：US208343
申请日：1980-11-19
Applicant: Teiji Hashimoto
Inventor： Teiji Hashimoto
CPC classification number: G03B9/08
Abstract: An electromagnetic driving device for driving shutter blades wherein a field coil used as stator encircles a permanent magnet rotor and extends across the rotational axis thereof. The rotor is arranged to undergo reciprocating rotation through less than one half turn in driving the shutter blades to open and close the shutter. Interference between the field coil and a coaxially arranged output shaft is avoided by the provision of a U-shaped intermediate member extending about the field coil and connecting the output shaft and the rotor.
Abstract translation: 一种用于驱动快门叶片的电磁驱动装置，其中用作定子的励磁线圈环绕永磁转子并且横过其旋转轴线延伸。 转子被布置成在驱动快门叶片时经过少于一半的往复旋转以打开和关闭快门。 通过设置围绕励磁线圈延伸并连接输出轴和转子的U形中间构件来避免励磁线圈与同轴布置的输出轴之间的干扰。
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公开(公告)号：US4227210A
公开(公告)日：1980-10-07
申请号：US876266
申请日：1978-02-09
Applicant: Ralph D. Nixon
Inventor： Ralph D. Nixon
CPC classification number: H04N5/2254 , G02B5/005 , H01J31/49 , H04N5/33
Abstract: A rotatable thermal shutter for use with a pyroelectric camera tube is provided with blades having opening and closing edges in the shape of a spiral. The use of a spiral shape allows the rotatable shutter to have a particularly small diameter while still providing satisfactory performance.
Abstract translation: 与热电相机管一起使用的可旋转热快门设置有具有螺旋形形状的开闭边缘的叶片。 使用螺旋形状允许可旋转快门具有特别小的直径，同时仍然提供令人满意的性能。
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