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公开(公告)号：US4950054A
公开(公告)日：1990-08-21
申请号：US359388
申请日：1989-05-31
申请人： Hiroyuki Wada , Naoya Kaneda , Masahide Hirasawa , Hirofumi Suda
发明人： Hiroyuki Wada , Naoya Kaneda , Masahide Hirasawa , Hirofumi Suda
CPC分类号： G02B7/102
摘要： A position control device for a lens system, the system including a variator and a compensator the latter of which also serves as the focusing lens, comprising device for detecting the degree of focus, device for detecting the positions of the variator and compensator, device for controlling movement of the compensator in accordance with at least the output of the position detecting device, and device responsive to occurrence of an out-of-focus state for correcting the manner in which the control device controls movement of the compensator, whereby the correcting device varies the manner between when the variator moves from the telephoto side to the wide-angle side and when from the wide-angle side to the telephoto side.
摘要翻译： 一种用于透镜系统的位置控制装置，该系统包括变换器和补偿器，后者还用作聚焦透镜，包括用于检测聚焦透镜的装置，用于检测变倍器和补偿器的位置的装置，用于 至少根据所述位置检测装置的输出控制所述补偿器的移动，以及响应于出现所述控制装置控制所述补偿器的运动的方式来校正所述失焦状态的装置，由此所述校正装置 改变变焦器从长焦侧向广角侧移动时以及从广角侧向长焦侧移动的方式。
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公开(公告)号：US4692650A
公开(公告)日：1987-09-08
申请号：US843624
申请日：1986-03-25
申请人： Ichiro Okumura , Takayuki Tsukimoto , Takuo Okuno , Kazuhiro Izukawa , Hiroyuki Seki , Hitoshi Mukohjima , Naoya Kaneda , Akira Hiramatsu
发明人： Ichiro Okumura , Takayuki Tsukimoto , Takuo Okuno , Kazuhiro Izukawa , Hiroyuki Seki , Hitoshi Mukohjima , Naoya Kaneda , Akira Hiramatsu
摘要： A vibration wave motor is driven at a high efficiency by arranging a contact area of a movable member which contacts a vibration member such that a displacement locus in the contact area is essentially coincident with a vibration locus in the vibration member.
摘要翻译： 通过配置与振动部件接触的可动部件的接触面积使得接触区域中的位移轨迹与振动部件的振动轨迹基本一致，能够高效率地驱动振动波马达。
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公开(公告)号：US4623237A
公开(公告)日：1986-11-18
申请号：US752170
申请日：1985-07-03
申请人： Naoya Kaneda , Youichi Iwasaki , Masamichi Tohyama
发明人： Naoya Kaneda , Youichi Iwasaki , Masamichi Tohyama
摘要： An automatic focusing device having a light projecting device, a light receiving device arranged to detect a reflection light quantity reflected by an object to be photographed as a result of light projection by the light projecting device and a distance measuring device arranged to measure a distance to the object by the reflection light quantity received by the light receiving device is capable of adequately performing a focusing operation even in cases where the reflection light quantity is at a level too low for the distance measuring device to give any result of distance measurement. This advantage is attained by the following arrangement: (i) the automatic focusing device is provided with a current control device which is arranged to increase the power of a light flux to be emitted from the light projecting device; (ii) a lens driving operation is brought to a stop in the event of an object of a low reflection factor; (iii) the light quantity accumulating time of the light receiving means can be lengthened; or (iv) a comparison level can be lowered.
摘要翻译： 一种具有投光装置的自动对焦装置，受光装置，被配置为检测由所述投光装置的光投射而被被拍摄物体反射的反射光量;以及距离测量装置，其被配置为测量与 即使在距离测量装置的反射光量处于太低的水平的情况下，由光接收装置接收到的反射光量的物体也能够适当地执行聚焦操作，以给出距离测量的任何结果。 该优点通过以下配置来实现：（i）自动聚焦装置设置有电流控制装置，该电流控制装置被布置成增加从光投射装置发射的光束的功率; （ii）在反射系数低的物体的情况下使透镜驱动动作停止; （iii）光接收装置的光量累积时间可以延长; 或（iv）可以降低比较水平。
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公开(公告)号：US4591919A
公开(公告)日：1986-05-27
申请号：US536369
申请日：1983-09-27
CPC分类号： H04N5/23212
摘要： Disclosed is an automatic focus control system including an active type automatic focusing device. The system further includes detecting apparatus which produces a characteristic signal when detecting that an image forming optical apparatus is in an out-of-focus condition, and control means which renders the automatic focusing device in an inoperative condition when the optical apparatus reaches an in-focus condition. It also renders the focusing device in an operative condition in response to the characteristic signal produced by the detecting apparatus.
摘要翻译： 公开了一种包括主动型自动对焦装置的自动聚焦控制系统。 该系统还包括当检测到图像形成光学装置处于离焦状态时产生特征信号的检测装置，以及当光学装置达到内部状态时使自动聚焦装置处于不工作状态的控制装置， 聚焦条件。 它还使聚焦装置响应于由检测装置产生的特征信号而处于操作状态。
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75.发明授权Piezoelectric vibration wave motor with multiple traveling wave generating members 失效具有多个行波发生元件的压电振动波马达
公开(公告)号：US4484099A
公开(公告)日：1984-11-20
申请号：US560527
申请日：1983-12-12
CPC分类号： H02N2/163
摘要： In a vibration motor, electrostrictive elements arranged or polarized phase-differentially are bonded to a plurality of concentric ring-shaped vibration members arranged on at least one of a stator and a rotor, voltages are applied to the electrostrictive elements to generate travelling vibration waves in the vibration members and the rotor contacting to the vibration members is friction-driven by the travelling vibration wave.
摘要翻译： 在振动电动机中，相互差分地配置或偏振的电致伸缩元件被接合到布置在定子和转子中的至少一个上的多个同心环形振动部件，电压施加到电致伸缩元件以产生行进振动波 与振动构件接触的振动构件和转子由行进振动波摩擦驱动。
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