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公开(公告)号：US4764784A
公开(公告)日：1988-08-16
申请号：US115250
申请日：1987-10-30
CPC分类号： G02B7/10
摘要： A camera with a built-in zoom lens includes at least first and second lens groups, a zoom frame for moving these lens groups along their optical axis during a zooming operation, a first lens holding frame carrying the first lens group and movable together with the zoom frame, a second lens holding frame carrying the second lens group and movable together with the zoom frame, a rocking arm disposed between the zoom frame and the second lens holding frame, rockingly supported on a camera body and having a first abutment which bears against the zoom frame and a second abutment which bears against the second lens holding frame, and a resilient biasing element for urging the second lens holding frame towards the zoom frame side; in addition to the above biasing element is a lock member for locking the second lens holding frame during a macro operation.
摘要翻译： 具有内置变焦透镜的照相机至少包括第一和第二透镜组，用于在变焦操作期间沿着它们的光轴移动这些透镜组的变焦框架，承载第一透镜组的第一透镜保持框架以及与第一透镜组一起移动的第一透镜保持框架 变焦框架，承载第二透镜组并与变焦框一起移动的第二透镜保持框架，设置在变焦框架和第二透镜保持框架之间的摆动臂，摇摆地支撑在相机主体上，并具有抵靠 所述变焦框架和抵靠所述第二透镜保持框架的第二抵接部以及用于将所述第二透镜保持框架朝向所述变焦框架侧推压的弹性偏置元件; 除了上述偏置元件之外，在宏操作期间是用于锁定第二镜头保持框架的锁定号码。
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公开(公告)号：US4945372A
公开(公告)日：1990-07-31
申请号：US307367
申请日：1989-02-06
申请人： Tatsuji Higuchi , Kazuo Yamamoto , Hitoshi Shirai , Yasuo Yamazaki , Yuichi Torikoshi , Kazuyuki Iwasa , Toshifumi Nakano
发明人： Tatsuji Higuchi , Kazuo Yamamoto , Hitoshi Shirai , Yasuo Yamazaki , Yuichi Torikoshi , Kazuyuki Iwasa , Toshifumi Nakano
CPC分类号： G03B3/10 , G03B13/12 , G03B15/05 , G03B2215/051
摘要： A camera includes a photographic optical system movable along its optical axis, and a cam ring rotatable about the optical axis of the optical system. When it is rotated by a motor, the cam ring moves the optical system to change the focal length thereof. Arranged at the outside of the cam ring are a viewfinder optical system, whose optical axis is parallel to that of the photographic optical system, and a strobe mechanism movable in a direction parallel to the optical axis of the photographic optical system. First and second cam portions are arranged on the cam ring and engage the viewfinder optical system and strobe mechanism, respectively, so as to move them along the optical axis of the photographic optical system, in association with the rotation of the cam ring.
摘要翻译： 相机包括可沿着其光轴移动的摄影光学系统和可围绕光学系统的光轴旋转的凸轮环。 当电动机旋转时，凸轮环移动光学系统以改变其焦距。 在凸轮环的外侧排列有取景器光学系统，其光轴平行于摄影光学系统的光学系统，以及可沿平行于摄影光学系统的光轴的方向移动的闪光灯机构。 第一和第二凸轮部分分别布置在凸轮环上并分别与取景器光学系统和选通机构接合，以便随着凸轮环的旋转而沿着摄影光学系统的光轴移动它们。
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公开(公告)号：US4363547A
公开(公告)日：1982-12-14
申请号：US284461
申请日：1981-07-17
申请人： Akira Hashimoto , Hitoshi Shirai
发明人： Akira Hashimoto , Hitoshi Shirai
CPC分类号： G03B17/30 , G03B17/425 , G03B2217/268
摘要： An apparatus for mounting a film magazine into camera includes a magazine receiving casing which is adapted to receive a film magazine therein and which includes a drive shaft for driving a film winding shaft of the magazine for rotation. The casing is disposed in a tiltable manner with respect to a camera body to permit the insertion or removal of a film magazine into or from the casing.
摘要翻译： 一种用于将胶片盒安装到照相机中的装置包括一个适用于在其中容纳胶片盒的盒子容纳壳体，它包括用于驱动盒子的胶片卷绕轴旋转的驱动轴。 壳体相对于照相机主体以可倾斜的方式设置，以允许将胶片盒插入或从壳体中取出。
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公开(公告)号：US4368439A
公开(公告)日：1983-01-11
申请号：US275293
申请日：1981-06-19
申请人： Kiyoshi Shibuya , Hitoshi Shirai
发明人： Kiyoshi Shibuya , Hitoshi Shirai
IPC分类号： H04L27/12
CPC分类号： H04L27/122
摘要： In a frequency shift keying system, sine waves of different frequencies f.sub.0 and f.sub.1 are selectively provided as a modulated output signal in accordance with the level of an input code. One of two pulse signals having frequencies N times higher than the frequencies f.sub.0 and f.sub.1 is selected by a selector in accordance with the level of the input code, and the selector output pulse signal is frequency divided by a counter down to 1/N to obtain a pulse signal having a duty ratio of 50% and a frequency of f.sub.0 or f.sub.1. The pulse signal obtained is converted by a low-pass filter into a sine wave. The modulated output signal has no phase shift even at the point of transition of the input code level and has continuity and hence has little modulation distortion.
摘要翻译： 在频移键控系统中，根据输入码的电平，选择性地提供不同频率f0和f1的正弦波作为调制输出信号。 通过选择器根据输入代码的电平来选择频率比频率f0和f1高出N倍的两个脉冲信号中的一个，并且选择器输出脉冲信号被一个计数器频率除以1 / N，以获得 占空比为50％，频率为f0或f1的脉冲信号。 所获得的脉冲信号由低通滤波器转换成正弦波。 调制输出信号即使在输入代码电平的转换点也没有相移，具有连续性，因此调制失真很小。
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公开(公告)号：US4621906A
公开(公告)日：1986-11-11
申请号：US716527
申请日：1985-03-27
摘要： A zoom lens assembly with an auto-focus function includes first and second lens groups, and a control device for causing a drive mechanism to rotate a distance-presetting ring which moves one of the lens groups, to adjust a focus in accordance with a signal sent from a light-receiving element for indicating the focused state of a foreground object. A line pattern substrate is arranged to move with the distance-presetting ring. A change in the focal length caused by the rotation of a zoom ring is sensed by a substrate detecting element which informs the control device of that extent to which the distance-presetting ring is to be rotated in order to assure a proper focus notwithstanding the changed focal length. The corrective rotation of the distance-presetting ring is detected by movement of the line pattern substrate relative to the detecting element. The light-receiving element is supplied with a beam of light reflected from the foreground object through the first and second groups of lenses.
摘要翻译： 具有自动对焦功能的变焦透镜组件包括第一透镜组和第二透镜组，以及用于使驱动机构旋转移动透镜组之一的距离预设环的控制装置，以根据信号调整焦点 从用于指示前景对象的聚焦状态的光接收元件发送。 布线图案基板与距离预定环一起移动。 通过变焦环的旋转引起的焦距的变化被基板检测元件感测到，该基板检测元件通知控制装置在距离预定环将被旋转的程度上，以便确保适当的焦点，尽管改变了 焦距。 通过线图案衬底相对于检测元件的移动来检测距离预定环的校正旋转。 光接收元件被提供有通过第一和第二组透镜从前景物体反射的光束。
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公开(公告)号：US4572645A
公开(公告)日：1986-02-25
申请号：US670559
申请日：1984-11-13
申请人： Yoichi Yoshida , Akihiko Hashimoto , Tatsuya Suzuki , Hitoshi Shirai , Hiroshi Akitake , Hirotsugu Nakazawa
发明人： Yoichi Yoshida , Akihiko Hashimoto , Tatsuya Suzuki , Hitoshi Shirai , Hiroshi Akitake , Hirotsugu Nakazawa
CPC分类号： G03B7/097
摘要： An exposure control device for camera includes a detector for detecting the opening of a sector shutter. By detecting an actual opening of the sector shutter, an amount of incremental exposure is calculated based on the opening and the corresponding time interval. Such amount is accumulated to provide an accumulated value. An amount of proper exposure is determined on the basis of photographing information including the brightness of an object being photographed and a film speed. The sector shutter is controlled in accordance with the accumulated value and the amount of proper exposure.
摘要翻译： 用于照相机的曝光控制装置包括用于检测扇形快门的打开的检测器。 通过检测扇区快门的实际打开，基于打开和对应的时间间隔来计算增量曝光量。 这样的数量被累积以提供累计值。 基于包括拍摄对象的亮度和胶片速度的拍摄信息来确定适当的曝光量。 扇区快门根据累积值和正确曝光量进行控制。
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公开(公告)号：US4411509A
公开(公告)日：1983-10-25
申请号：US331587
申请日：1981-12-17
申请人： Hitoshi Shirai
发明人： Hitoshi Shirai
CPC分类号： G03B17/30 , G03B1/04 , G03B1/58 , G03B17/425 , G03B2217/261
摘要： A take-up assembly for automatic film loading comprises a film take-up spool sleeve having a notch window formed therein for receiving a film catch member, a spool shaft rotatably fitted inside the spool sleeve and supported by a camera body so as to present a given magnitude of friction for its rotation relative to the body, a catch member rotatably mounted on the spool shaft and having a pawl which is disposed inside the notch window for fitting engagement with one of perforations formed in a perforated roll film, a first spring for causing the catch member to project out of the notch window during a film loading operation, and a second spring for causing the spool sleeve to rotate through a given angle relative to the spool shaft for receiving the catch member inside the notch window.
摘要翻译： 用于自动胶片装载的卷取组件包括一个胶片卷取卷轴套筒，其中形成有用于接收胶片捕捉部件的切口窗口，卷筒轴可转动地装在卷轴套筒内并被照相机主体支撑， 给定其相对于主体的旋转的摩擦力，可旋转地安装在卷筒轴上并具有棘爪的卡扣构件，其设置在切口窗内部，用于与形成在多孔辊膜中的穿孔中的一个配合接合;第一弹簧， 在胶片装载操作期间使卡扣构件伸出凹口窗口;以及第二弹簧，用于使卷轴套相对于卷筒轴旋转一个给定的角度，以在凹口窗口内容纳卡扣构件。
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公开(公告)号：US4508443A
公开(公告)日：1985-04-02
申请号：US524671
申请日：1983-08-19
申请人： Minoru Matsuzaki , Akihiko Hachimoto , Takashi Inoue , Hitoshi Shirai , Akira Watanabe , Ikuo Tofukuji
发明人： Minoru Matsuzaki , Akihiko Hachimoto , Takashi Inoue , Hitoshi Shirai , Akira Watanabe , Ikuo Tofukuji
CPC分类号： G02B7/08
摘要： A lens barrel is capable of selectively establishing a power focus mode in which an internally housed motor moves a taking lens to a position of any desired focal length, a single "auto-focus" mode in which the taking lens is moved to a position which is in focus to a stationary object being photographed, and a sequence "auto-focus" mode in which the taking lens is continuously moved in focus to a moving object being photographed. Any one of these modes is suitably selected by a mode changing switch. A movement of the taking lens in each mode is initiated by an operating member.
摘要翻译： 透镜镜筒能够选择性地建立功率对焦模式，其中内部容纳的马达将拍摄镜头移动到任何所需焦距的位置，单次“自动对焦”模式，其中拍摄镜头移动到 对被拍摄的静止物体进行聚焦，以及将拍摄镜头连续移动到拍摄的移动物体的顺序“自动对焦”模式。 这些模式中的任何一个通过模式切换开关适当选择。 拍摄镜头在每种模式下的移动由操作构件启动。
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公开(公告)号：US4293931A
公开(公告)日：1981-10-06
申请号：US135184
申请日：1980-03-28
IPC分类号： G11C11/34 , G06F1/04 , G11C11/406 , G11C11/41 , H03K5/15
CPC分类号： G11C11/406 , G06F1/04 , H03K5/15 , H03K5/15013
摘要： In a memory refresh control system for refresh control of a memory having, as refresh addresses, addresses respectively corresponding to combinations of n+N bits, there are provided a refresh control circuit which yields, as refresh addresses, addresses respectively corresponding to combinations of n bits and generates, in a certain period of time, refresh clocks respectively corresponding to the abovesaid addresses for specifying 2.sup.n refresh times, a circuit which divides each of the refresh clock into 2.sup.N in terms of time and an overhead bit generator which is supplied with the divided clocks to produce successively addresses respectively corresponding to combinations of N bits for each divided clock. The n bits available from the refresh control circuit are added with the N bits generated by the overhead bit generator and then applied as an address of n+N to a memory, which is refreshed by the divided clock. The refresh clock divider is composed of monostable multivibrators of suitable time constants, and the overhead bit generator is formed by a counter.
摘要翻译： 在用于对具有分别对应于n + N位组合的地址作为刷新地址的存储器进行刷新控制的存储器刷新控制系统中，提供了刷新控制电路，其产生分别对应于n的组合的刷新地址 并且在一定时间段内产生分别对应于上述地址的刷新时钟，用于指定2n个刷新时间，将刷新时钟中的每一个在时间上划分为2N的电路以及被提供给 分割时钟，以产生分别对应于每个分频时钟的N比特的组合的连续地址。 从刷新控制电路可以得到的n位加上由开销位产生器产生的N位，然后作为n + N的地址施加到由分频时钟刷新的存储器。 刷新时钟分频器由具有合适时间常数的单稳态多谐振荡器组成，并且开销位发生器由计数器形成。
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