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公开(公告)号：US4423940A
公开(公告)日：1984-01-03
申请号：US338528
申请日：1982-01-11
CPC分类号： G03B7/16 , G03B15/05 , G03B2215/0528
摘要： A photographic equipment provided with a focal-length sensing means for sensing the focal length of a photographic lens mounted on a camera body and generating the electrical output signal representative of the detected focal length and a beam-angle control means responsive to the output signal from the focal-length sensing means for changing, in response to the detected focal length, the beam angle of an electronic flash unit mounted on the camera body.
摘要翻译： 一种摄影设备，其设置有焦距感测装置，用于感测安装在照相机主体上的照相镜头的焦距并产生表示检测到的焦距的电输出信号;以及光束角度控制装置，其响应于来自 焦距检测装置，用于响应于检测到的焦距改变安装在照相机主体上的电子闪光灯单元的光束角度。
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2.发明授权
公开(公告)号：US4472039A
公开(公告)日：1984-09-18
申请号：US400680
申请日：1982-07-22
CPC分类号： G03B9/07
摘要： A photographic lens device with a built-in electronic aperture-stop control system or mechanism comprising a step motor and an aperture-stop setting device which are spaced apart from each other by a suitable distance in the direction of the optical axis of the photographic lens system and are coupled to each other through a coupling means. In one embodiment, the aperture-stop control system can be incorporated in the lens device simply by slightly enlarging the diameter of the lens device or barrel without increasing its axial length because of full possible use of a heretofore unused dead space available in the lens device.
摘要翻译： 一种具有内置电子孔径光阑控制系统或机构的摄影镜头装置，包括步进电机和孔径光阑设置装置，它们在摄影镜头的光轴方向上彼此间隔适当的距离 并且通过耦合装置彼此耦合。 在一个实施例中，孔径光阑控制系统可以简单地通过稍微扩大透镜装置或镜筒的直径而不增加其轴向长度而被并入透镜装置中，这是因为完全可能使用透镜装置中现有的未使用的死空间 。
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公开(公告)号：US4461560A
公开(公告)日：1984-07-24
申请号：US326111
申请日：1981-11-30
IPC分类号： G03B17/18
CPC分类号： G03B17/18
摘要： So far, the windows for displaying the number of frames exposed, a film speed, an aperture, a shutter speed and the like have been located at various positions on a camera body, but according to the present invention such photographic information can be displayed at the same place in the vicinity of a viewfinder or in the field of view thereof by a display device comprising an electro-optical display unit and a display information selection means adapted to cause the display unit to display the desired information.
摘要翻译： 到目前为止，用于显示曝光的帧数，胶片速度，光圈，快门速度等的窗口已经位于相机机身的各个位置，但是根据本发明，这样的照片信息可以显示在 通过包括电光显示单元和适于使显示单元显示所需信息的显示信息选择装置的显示装置，在取景器附近或其视场中的相同位置。
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公开(公告)号：US4371245A
公开(公告)日：1983-02-01
申请号：US290402
申请日：1981-08-05
摘要： A photographing lens, which is to be mounted on a camera in an interchangeable manner is provided with a focus-informing means, which informs the photographer of focussings of the photographing lens during manual focussing operation thereof by buzzer or by small lamp, thereby enabling to provide a semi-automatic focussing for a conventional camera body without provision of an automatic focus adjusting means.
摘要翻译： 要以可互换的方式安装在相机上的摄影镜头设置有聚焦通知装置，其通过蜂鸣器或小灯在其手动聚焦操作期间向摄影者通知拍摄镜头的聚焦，从而能够 为常规相机机身提供半自动聚焦，而无需提供自动对焦调整装置。
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公开(公告)号：US4443087A
公开(公告)日：1984-04-17
申请号：US420859
申请日：1982-09-21
CPC分类号： G02B7/40 , G01S15/101 , G03B17/18
摘要： A focus state indicator for a camera is provided such that the photographer may know a focus state in accordance with electrical signals respectively corresponding to the lens position in the previous focusing operation and a distance between a camera and a subject to be photographed. A circuit is arranged to generate a differential signal between the output electrical signals. The alarm operation of an alarm element is continuously changed between focused and out of focused states in accordance with the differential signal, so that the photographer can know the focus state.
摘要翻译： 提供了一种用于照相机的聚焦状态指示器，使得摄影者可以根据分别对应于先前聚焦操作中的透镜位置的电信号和照相机和要拍摄的被摄体之间的距离来知道对焦状态。 电路被布置成在输出电信号之间产生差分信号。 报警元件的报警操作根据差分信号在聚焦状态和聚焦状态之间持续变化，从而摄影者可以知道对焦状态。
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公开(公告)号：US4394077A
公开(公告)日：1983-07-19
申请号：US313668
申请日：1981-10-21
CPC分类号： G02B7/343
摘要： Image focusing device especially adapted for use in single-lens reflex cameras. A light-beam emission or projection means is incorporated in each interchangeable photographic lens in such a way that the direction of the light beam emitted or projected therefrom can be varied in response to the axial displacement of a lens group for focusing an object. The light rays which are reflected from the object and pass through the photographic lens along and in the vicinity of its optical axis are intercepted by a photodetection means disposed within a camera body, whereby whether or not the photographic lens is sharply focused at the object can be detected.
摘要翻译： 图像聚焦装置特别适用于单镜头反光相机。 光束发射或投影装置被结合在每个可互换的摄影镜头中，使得从其发射或投射的光束的方向可以响应于用于聚焦物体的透镜组的轴向位移而变化。 从物体反射并沿其光轴附近通过摄影透镜的光线被设置在照相机主体内的光检测装置截取，由此摄影镜头是否被锐利地聚焦在物体罐 被检测。
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公开(公告)号：US4585313A
公开(公告)日：1986-04-29
申请号：US560993
申请日：1983-12-13
CPC分类号： G02B7/10
摘要： A lens drive mechanism comprising a lens mount, a basic barrel having a compartment defined therein for accommodating the lens mount for movement in a direction parallel to the optical axis, a pin member, and a generally semicircular cross-sectioned cam member mounted so as to cover the basic barrel for rotation about the optical axis and having a cam groove defined therein with the free end of the pin member engaged in the cam groove.
摘要翻译： 一种透镜驱动机构，包括透镜支架，基本筒体，其具有限定在其中的隔室，用于容纳用于在平行于光轴的方向上移动的透镜支架;销构件;以及大致半圆形横截面的凸轮构件， 覆盖基本筒体以围绕光轴旋转并且具有限定在其中的凸轮槽，销构件的自由端接合在凸轮槽中。
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公开(公告)号：US4596449A
公开(公告)日：1986-06-24
申请号：US560989
申请日：1983-12-13
IPC分类号： G02B7/10
CPC分类号： G02B7/10
摘要： A zoom lens apparatus comprising a moving construction for moving a zoom-ratio adjusting barrel composed of a variator-lens amount and a compensator-lens mount by the rotation along the direction of the optical axis within the fixed barrel; a stepping motor, which is coupled to the moving construction is composed of a rotor having a hollow portion as a light path including the optical axis and a stator to be combined with the rotor, and reversibly rotates in accordance with the pulse signal to be applied; and a circuit means for controlling the operation of the stepping motor with providing advantages and that the reduction gear and clutch mechanism are not required, the outer shape is kept cylindrical, but is not required bigger in size and the price can be made lower.
摘要翻译： 一种变焦透镜装置，包括：移动构造，用于通过沿着固定筒内的光轴方向的旋转来移动由变倍透镜量组成的变焦倍率调节筒和补偿透镜座; 耦合到移动结构的步进电机由具有作为包括光轴的光路的中空部分和与转子组合的定子的转子构成，并且根据要施加的脉冲信号可逆地旋转 ; 以及用于控制步进电动机的操作的电路装置，并且不需要减速齿轮和离合器机构，外形保持为圆柱形，但不需要尺寸更大，并且可以降低价格。
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公开(公告)号：US5028945A
公开(公告)日：1991-07-02
申请号：US584100
申请日：1990-09-18
IPC分类号： G02B7/10
CPC分类号： G02B7/102
摘要： Electric zoom camera wherein zooming speed is not influenced even by drop of power source voltage, by driving its zooming electric motor by an electric pulse current such that the period (T.sub.0, T.sub.1, T.sub.2, - - -) is defined by present period of a lens position signal "b" from a lens position detector (2) which consists of a photo-interrupter and a photo-coupler, and each of the period length is divided into a first portion (Po) (off-portion) wherein motor current is off and a second portion (Pd) (duty portion) wherein the motor current is on, the length of the first portion (Po) being adjusted responding to the present zooming speed obtained from the lens position signal outputted from the lens position detector (2).
摘要翻译： 电动变焦摄像机，即使通过电动电压下降也不会影响变焦速度，通过用电脉冲电流驱动其变焦电动机，使得周期（T0，T1，T2， - - ）由当前周期定义 透镜位置信号“b”由光电断路器和光电耦合器构成的透镜位置检测器（2）中，每个周期长度被分成第一部分（Po）（偏离部分），其中电动机电流 以及电动机电流接通的第二部分（负载部分），响应于从透镜位置检测器输出的透镜位置信号获得的当前变焦速度来调节第一部分（Po）的长度 2）。
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公开(公告)号：US4259615A
公开(公告)日：1981-03-31
申请号：US19403
申请日：1979-03-12
申请人： Toshitsugu Kashihara , Kazuo Tanaka
发明人： Toshitsugu Kashihara , Kazuo Tanaka
CPC分类号： H05B41/32
摘要： A photographic flash device comprising a main capacitor for flashing a flash discharge tube, a DC-DC converter, a constant-voltage circuit for controlling the oscillation function of the DC-DC converter and an indication means capable of discriminatively indicating states of the voltage of the main capacitor in three different voltage ranges, first range being from zero to a first predetermined voltage above which flashing is possible, second range being from a first predetermined voltage to a second predetermined voltage, the third range being from the second predetermined voltage to a third predetermined maximum voltage, respectively.
摘要翻译： 一种照相闪光装置，包括用于闪光闪光放电管的主电容器，DC-DC转换器，用于控制DC-DC转换器的振荡功能的恒压电路，以及能够区分地指示电压的状态的指示装置 所述主电容器在三个不同的电压范围内，第一范围从零到第一预定电压，高于该第一预定电压可能闪烁，第二范围是从第一预定电压到第二预定电压，第三范围是从第二预定电压到 第三预定最大电压。
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