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公开(公告)号：US20040170423A1
公开(公告)日：2004-09-02
申请号：US10786599
申请日：2004-02-26
发明人： Kouichi Kudo , Nobuyoshi Inoue
IPC分类号： G03B009/70
CPC分类号： G03B9/18
摘要： A focal plane shutter for cameras is provided with a shutter blade which can be actuated to both directions for opening and for closing a photographing optical path by an electromagnetic apparatus. When a rotor is rotated to the direction corresponding to the direction of conduction of coils an actuating member which is formed in one with the rotor make arms rotate by its actuating pin and actuates four blades of the shutter blade about upward and downward direction. A brake member rotatably arranged together with on a friction plate on a shaft has bent portions formed near tip portions of the arm portions which are inserted in a slot on a shutter base plate. An operation for opening the shutter blade is braked by the actuating pin contacting, pressing and moving one of the bent portions at termination stage, and a closing operation is braked by the actuating pin contacting, pressing and moving another bent portion at the termination stage. Thus the shutter blade can be braked suitably at the termination stage and stopped early.
摘要翻译： 用于照相机的焦平面快门设置有快门叶片，该快门叶片可以被驱动到两个方向，以便通过电磁设备打开和关闭拍摄光路。 当转子旋转到对应于线圈传导方向的方向时，与转子一体形成的致动构件使其臂由其致动销旋转并且致动快门叶片的四个叶片绕上下方向。 可转动地布置在轴上的摩擦板上的制动构件具有形成在臂部分的顶端部分附近的弯曲部分，这些弯曲部分插入在快门基板上的狭槽中。 用于打开快门叶片的操作通过致动销在终止阶段接触压紧和移动一个弯曲部分而被制动，并且关闭操作由致动销制动，在终止阶段按压并移动另一个弯曲部分。 因此，快门叶片可以在终止阶段适当地制动并提前停止。
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公开(公告)号：US20040042787A1
公开(公告)日：2004-03-04
申请号：US10646782
申请日：2003-08-25
发明人： Hiroshi Miyazaki
IPC分类号： G03B009/40
CPC分类号： G03B9/40
摘要： A focal-plane shutter for cameras is constructed so that the second blade group is placed in a blade chamber on the shutter base plate side and the first blade group is placed in a blade chamber on the auxiliary base plate side. The auxiliary base plate is placed on the image sensor side in a camera and secures projecting members, each having a spherical convex portion whose surface is palladium-plated. In the first blade group, five blades are pivotally supported by two arms, and immediately before, at least, a joint shank for pivotally supporting a slit-forming blade is moved inside the aperture for exposure of the auxiliary base plate during operation and reaches a position corresponding to the edge of the aperture, the arm strikes on the projecting member and is shifted to the object side so that the head of the joint shank does not abut against the edge of the aperture. Consequently, it is avoidable that the head of the joint shank abuts against the edge of the aperture to produce wear dust.
摘要翻译： 用于照相机的焦平面快门被构造成使得第二叶片组被放置在快门基板侧的叶片室中，并且第一叶片组被放置在辅助基板侧上的叶片室中。 辅助基板被放置在相机中的图像传感器侧上，并且固定突出构件，每个具有表面镀钯的球形凸部。 在第一叶片组中，五个叶片由两个臂枢转地支撑，并且紧接在之前，至少一个用于枢转地支撑狭缝形成叶片的关节柄在孔内移动，以在操作期间暴露辅助底板并达到 位置对应于孔的边缘，臂撞击突出构件，并且移动到物体侧，使得接合柄的头部不抵靠孔的边缘。 因此，可以避免接头柄的头部与孔的边缘抵接以产生磨损灰尘。
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公开(公告)号：US20030234586A1
公开(公告)日：2003-12-25
申请号：US10600835
申请日：2003-06-23
发明人： Masato Iwase , Masaaki Takagi
IPC分类号： H02K037/00
CPC分类号： H02K1/06 , H02K3/47 , H02K37/14 , H02K2211/03
摘要： A stepping motor including a rotor (1) having a permanent magnet 1b and magnetized in multipoles, a plurality of coils (2) arranged at a surrounding of the rotor (1) and wound around a radius direction of the rotor (1), a supporter (3) in a cylindrical shape for supporting the coils (2), and a casing (4) for surrounding the permanent magnet (1b), the coils (2) and the supporter (3) and fixed with the supporter (3), characterized in that the supporter (3) comprises an insulating film having a flexibility.
摘要翻译： 一种步进电动机，包括具有永磁体1b并被多次磁化的转子（1），设置在转子（1）周围并围绕转子（1）的半径方向缠绕的多个线圈（2） 用于支撑线圈（2）的圆柱形支撑件（3）和用于围绕永磁体（1b），线圈（2）和支撑件（3）并用支撑件（3）固定的壳体（4） ，其特征在于，所述支架（3）包括具有柔性的绝缘膜。
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公开(公告)号：US20030228145A1
公开(公告)日：2003-12-11
申请号：US10454539
申请日：2003-06-05
发明人： Shinji Ito , Nobuyoshi Inoue
IPC分类号： G03B009/40
CPC分类号： G03B9/40
摘要： A first blade actuating member and a second blade actuating member have pins, respectively. A movable contact member, which is urged to rotate in a counterclockwise direction, has locking arms and a contact piece member. When the first blade actuating member is rotated in the counterclockwise direction in photographing, the movable contact member causes a locking arm of to follow a pin of the first blade actuating member and causes the contact piece portion to come into contact with the contact piece portion of a stationary contact portion to thereby detect an abnormal actuation of the first blade actuating member by offset from normal timing. Next, when the second blade actuating member is rotated in the counterclockwise direction, a locking arm of the movable contact member is rotated by being pressed by a pin and causes the contact piece portion thereof to come into contact with the contact piece portion of the stationary contact portion to thereby detects an abnormal actuation of the second blade actuating member, similarly to the above mentioned.
摘要翻译： 第一刀片致动构件和第二刀片致动构件分别具有销。 被推动沿逆时针方向旋转的可动接触构件具有锁定臂和接触件构件。 当第一刀片致动构件在拍摄中沿逆时针方向旋转时，可动接触构件使得锁定臂跟随第一刀片致动构件的销，并使接触片部分与接触片部分的接触片部分接触 固定接触部分，从而通过偏离正常定时来检测第一叶片致动构件的异常致动。 接下来，当第二刀片致动构件沿逆时针方向旋转时，可动接触构件的锁定臂通过被销按压而旋转，并使其接触片部分与固定件的接触片部分接触 接触部分，从而检测第二刀片致动构件的异常致动，类似于上述。
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公开(公告)号：US20030128976A1
公开(公告)日：2003-07-10
申请号：US10280089
申请日：2002-10-25
发明人： Shuji Ichinose , Takao Ogawa , Yutaka Okazaki
IPC分类号： G03B009/40
CPC分类号： G03B9/40
摘要： A focal plane shutter apparatus is constructed by a light shielding blade, a fitting pin attached to the blade and an arm which is slidably engaged with the fitting pin to open or close the blade. A surface hardness of the fitting pin is higher than that of the arm. Concretely, the surface hardness of the arm is Hv300 to 600, and the surface hardness of the fitting pin is Hv450 to 1000. The arm and the fitting pin are subjected to chemical polishing treatment. Furthermore, the fitting pin is plated with nickel, chromium, palladium or rhodium. The fitting pin and arm have a substantially equal material hardness, or the material hardness of the fitting pin is higher. As the case may be, the fitting pin or arm may be plated with gold. Such an arrangement can suppress generation and accumulation of abrasion powder in the focal plane shutter apparatus assembled into a digital camera.
摘要翻译： 焦平面快门装置由遮光叶片，安装在叶片上的装配销和与装配销可滑动地接合以打开或关闭叶片的臂构成。 装配销的表面硬度高于手臂的表面硬度。 具体地说，臂的表面硬度为Hv300〜600，配合销的表面硬度为Hv450〜1000。臂和配合销进行化学抛光处理。 此外，配合销镀镍，铬，钯或铑。 配合销和臂具有大致相同的材料硬度，或装配销的材料硬度较高。 根据情况，配件销或臂可以镀金。 这种布置可以抑制组装成数码相机的焦平面快门装置中磨损粉末的产生和积累。
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96.发明申请公开(公告)号：US20030123869A1
公开(公告)日：2003-07-03
申请号：US10329475
申请日：2002-12-27
发明人： Takanori Kohno , Tomio Kurosu
IPC分类号： G03B013/00
CPC分类号： G02B7/32
摘要： An optical range finder has a projection unit for projecting optical flux to an object, a photoreceiving unit for receiving the optical flux returned from the object and outputting a detection signal in accordance with a light quantity of the received optical flux, and a circuitry unit for conducting a measurement of a distance to the object based on the detection signal. In the circuitry unit, a light quantity determination circuit compares a signal level of the detection signal with a reference level to carry out binary determination of the light quantity of the returned optical flux. A reference level setting circuit switchably supplies a plurality of reference levels to the light quantity determination circuit, the reference levels being preset in correspondence to multiple stages of the distance. A control circuit controls the reference level setting circuit to supply the reference levels while switching the reference levels so as to enable the light quantity determination circuit to execute a plurality of the binary determination with the supplied reference levels for one measurement, thereby specifying the distance to one of the multiple stages based on the thus obtained plurality of the binary determination.
摘要翻译： 光学测距仪具有用于将光通量投射到物体的投影单元，用于接收从物体返回的光通量并根据所接收的光通量的光量输出检测信号的光接收单元，以及用于 基于检测信号进行到物体的距离的测量。 在电路单元中，光量确定电路将检测信号的信号电平与参考电平进行比较，以执行返回的光通量的光量的二进制确定。 参考电平设置电路可切换地将多个基准电平提供给光量确定电路，该参考电平是根据该距离的多个级来预设的。 控制电路控制参考电平设置电路，以便在切换参考电平时提供参考电平，以使光量确定电路能够利用所提供的参考电平执行多个二进制确定用于一次测量，从而指定到 基于由此获得的多个二进制确定的多个级中的一个。
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公开(公告)号：US20010041074A1
公开(公告)日：2001-11-15
申请号：US09858213
申请日：2001-05-15
IPC分类号： G03B009/00
CPC分类号： G03B9/00
摘要： The camera shutter unit of the present invention is provided with a diaphragm blade arranged to be capable of moving between a stopping-down position wherein an aperture is stopped down and an evacuating position wherein the aperture is opened, a shutter blade arranged to be capable of moving between an opening position wherein the aperture is opened and a dosing position wherein the aperture is closed, and a drive-control mechanism for drive-controlling the shutter blade and the diaphragm blade. The drive-control mechanism has a single electromagnetic drive source, and a spring for restricting movement of the shutter blade toward the closing position when the diaphragm blade is positioned in the stopping-down position and for releasing its restriction by a predetermined or more drive force generated by the electromagnetic drive source. Therefore, the unit can become small size and low in cost, and its reliability of function can be improved.
摘要翻译： 本发明的相机快门单元设置有光阑叶片，其被布置成能够在其中停止孔的停止位置和开口的抽空位置之间移动;快门叶片，其布置成能够 在打开所述孔的打开位置与所述孔关闭的配量位置之间移动;以及用于驱动所述快门叶片和所述光阑叶片的驱动控制机构。 驱动控制机构具有单个电磁驱动源，弹簧用于当光阑叶片位于停止位置时限制快门叶片向关闭位置的移动，并且通过预定的或更大的驱动力释放其限制 由电磁驱动源产生。 因此，该装置体积小，成本低，功能可靠性得到提高。
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公开(公告)号：US11979653B2
公开(公告)日：2024-05-07
申请号：US17299784
申请日：2019-12-06
发明人： Kenzo Imai , Nobuaki Watanabe , Daisuke Kakemizu
摘要： An imaging device includes an image sensor, a blade operable to switch between a closed state to at least partially block light incident on the image sensor and an open state to allow light to be incident on the image sensor, a blade driver that drives the blade, a blade controller that controls the blade driver, an authentication processor that performs authentication based on a result of imaging performed by the image sensor, and an operation detector that detects an operation. The blade controller controls the blade driver to place the blade in the open state in response to a predetermined operation detected by the operation detector and to place the blade in the closed state in response to a predetermined time passing in the open state of the blade and no success in the authentication performed by the authentication processor.
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公开(公告)号：US11960194B2
公开(公告)日：2024-04-16
申请号：US18063682
申请日：2022-12-09
发明人： Mami Muramatsu
摘要： A camera includes a viewfinder portion causing a frontward field of view to be visible through a viewfinder, and a drive lever rotatable about a shaft. An operation cylinder operable to extend and contract an extendable unit includes a guide surface extending in a circumferential direction and a recess adjacent to the guide surface. The drive lever includes an actuation portion that comes in contact with the guide surface of the operation cylinder. The camera further includes an urging member urging the actuation portion in the drive lever, a prism that changes a direction of a field of view visible through the viewfinder portion, and a prism guide lever rotatable about a shaft. The prism guide lever includes a prism holder holding the prism, and a follower gear meshing with a drive gear in the drive lever. The prism holder is placeable into the viewfinder portion.
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公开(公告)号：US11937012B2
公开(公告)日：2024-03-19
申请号：US17890267
申请日：2022-08-18
发明人： Ryuzo Nakano , Taizo Takiguchi
CPC分类号： H04N5/77 , G03B11/043 , H04N23/56 , H04N23/71 , H04N23/76
摘要： To reduce increased consumption of the recording capacity of a recording medium to record generated image data, an imaging device includes an imaging element and an image processor that receive subject light through an opening in a housing and generate image data, a recording controller that records the image data generated by the imaging processor onto a memory card, a lens cover movable to a position at which the lens cover covers the opening to restrict the subject light from entering the imaging element, and a determiner that detects a position of the lens cover based on the image data generated by the imaging processor and determines whether the lens cover covers the opening. The recording controller stops recording the image data onto the memory card when the determiner determines that the lens cover covers the opening.
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