Exposure indicator control circuit
    21.
    发明授权
    Exposure indicator control circuit 失效
    曝光指示灯控制电路

    公开(公告)号:US4261659A

    公开(公告)日:1981-04-14

    申请号:US9603

    申请日:1979-02-05

    IPC分类号: G03B17/18 G03B7/093 G03B17/20

    CPC分类号: G03B17/20

    摘要: In the view-finder of a camera having a TTL type light meter connected to an integrating-type analog-to-digital converter through a repeatedly operated electronic switch, there are positioned fifteen light emitting diodes upon selection of an exposure value by the converter, to illuminate a corresponding indicium on a scale of 15 exposure values, such as shutter times. Since a photo-cell exposed to scene light is also positioned in the view-finder, when the brightness of a scene to be photographed is lowered to such an extent that the influence of light from the energized diode on the photo-cell is not negligible, then the decoder for the diode arrangement is controlled to defer initiation of actuation of the one of the diodes which presents the display of an exposure value derived in the preceding cycle of light metering operation pending transition from the light integrating to the analog-to-digital converting step in the following cycle. With the scene brightness above the critical level, a corresponding diode is allowed to light up at the start of each cycle of light metering operation, so that the intensity of illumination on the exposure indicium is increased to make the reading of that indicium easier.

    摘要翻译: 在具有通过重复操作的电子开关连接到积分型模数转换器的TTL型光度计的摄像机的取景器中,在通过转换器选择曝光值时,设置了15个发光二极管, 以15个曝光值的刻度照亮相应的标记,例如快门时间。 由于暴露于场景光的光电池也位于取景器中,所以当要被拍摄的场景的亮度降低到这样的程度时,来自通电二极管的光对光电池的影响是不可忽略的 然后控制用于二极管布置的解码器以推迟二极管中的一个的启动,该二极管中的一个显示在光计量操作的前一循环中导出的曝光值的显示,等待从光积分转换到模拟 - 数字转换步骤如下。 在场景亮度高于临界水平的情况下,允许相应的二极管在每次测光操作循环开始时亮起,从而增加曝光指示灯上的照明强度,使得该标记的读数更加容易。

    Photographic camera with a release locking device
    22.
    发明授权
    Photographic camera with a release locking device 失效
    具有释放锁定装置的照相机

    公开(公告)号:US4178085A

    公开(公告)日:1979-12-11

    申请号:US780018

    申请日:1977-03-22

    CPC分类号: G03B17/42

    摘要: A release locking device for use in photographic cameras of the type in which an exposure meter and electromagnetic actuating and releasing means for automatic exposure control are rendered operative in separate manner by their respective control or release switches as may be operatively associated with a display button and a shutter release button respectively. This device comprises a master switch connected between an electrical power source and a common input lead of these release switches to be closed and opened in response to an actuation and a release, respectively, of a manually operable member, thereby all of the release switches are rendered effective and ineffective at a time. In a preferred embodiment, this device is operatively associated with a shutter cocking mechanism to be actuable in automatic response to a protracting movement of the shutter cocking lever into an effective range of shutter cocking operation.

    摘要翻译: 一种用于照相机的释放锁定装置,其中曝光计和用于自动曝光控制的电磁致动和释放装置通过它们各自的控制或释放开关以分开的方式操作,如可操作地与显示按钮相关联, 快门释放按钮。 该装置包括连接在这些释放开关的电源和公共输入引线之间的主开关,以分别响应于可手动操作的构件的致动和释放而被关闭和打开,由此所有释放开关是 一次有效和无效。 在优选实施例中,该装置可操作地与快门启动机构相关联,以便能够自动响应快门推杆的伸出运动进入快门启动操作的有效范围。

    Vibration wave motor
    25.
    发明授权
    Vibration wave motor 失效
    振动马达

    公开(公告)号:US4513219A

    公开(公告)日:1985-04-23

    申请号:US552373

    申请日:1983-11-16

    CPC分类号: H02N2/14 H02N2/147 H02N2/163

    摘要: A pair of electro-strain element groups each having at least one polarized or non-polarized electro-strain element are arranged or polarized phase-differentially, and the electro-strain element groups are electrically insulated from each other and the electro-strain element groups and a vibrating member are also electrically insulated from each other. Pulse voltages of different phases derived from one DC power supply are applied to the respective electro-strain element groups, and a moving member press-contacted to the vibrating member is friction-driven by a travelling vibration wave generated in the vibrating member.

    摘要翻译: 每个具有至少一个极化或非极化电应变元件的电应变元件组彼此相对地排列或极化,并且电应变元件组彼此电绝缘,并且电应变元件组 并且振动构件也彼此电绝缘。 从一个直流电源得到的不同相的脉冲电压被施加到各个电应变元件组,并且与振动部件压接的移动部件被振动部件中产生的行进振动波摩擦驱动。

    Camera with automatic focusing device
    27.
    发明授权
    Camera with automatic focusing device 失效
    相机带自动对焦装置

    公开(公告)号:US4474447A

    公开(公告)日:1984-10-02

    申请号:US439786

    申请日:1982-11-08

    CPC分类号: G02B7/38

    摘要: In a still-picture camera using a servo-like automatic focusing device, the automatic focusing device is locked and inhibited from operating when a shutter release is performed. The invented arrangement permits the use of a servo-like automatic focusing device for a still-picture camera without impairing operability. Furthermore, the invention permits selection of a servo-like automatic focusing function or a one-shot focusing function which is effected during a sequence of steps on an member such as a release operation member, so that the automatic focusing functions can be selected by utilizing the operability of the still-picture camera without impairing the operability thereof.

    摘要翻译: 在使用伺服式自动聚焦装置的静态照相机中,当执行快门释放时,自动聚焦装置被锁定和禁止操作。 本发明的装置允许使用伺服式自动聚焦装置用于静态图像摄像机,而不损害可操作性。 此外,本发明允许选择在诸如释放操作构件的构件上的一系列步骤期间实现的伺服式自动聚焦功能或一次聚焦功能,使得可以通过利用自动聚焦功能来选择自动聚焦功能 静止图像摄像机的可操作性而不损害其可操作性。

    Liquid crystal display device for camera
    28.
    发明授权
    Liquid crystal display device for camera 失效
    相机用液晶显示装置

    公开(公告)号:US4452522A

    公开(公告)日:1984-06-05

    申请号:US327617

    申请日:1981-12-04

    CPC分类号: G03B17/20

    摘要: A liquid crystal display device for a camera includes a display member having liquid crystal material for providing a display of photographic information, and a focusing glass for forming an image of an object which is to be photographed. A mask is arranged to face the display member and the focusing glass, the mask including a first transparent part which faces a display part of the display member, and a second transparent part which faces the object image formed on the focusing glass. A light shading part is provided between the first and second transparent parts of the mask to shade an end part of the display member from light. The mask enables view finder optics provided in the camera to display a rectangular view field having straight sides to the camera user. This is accomplished by forming boundary lines between the first and second transparent parts and the light shading part of the mask, wherein each boundary line substantially forms an arc having a center located on a straight line which is perpendicular to one of a long and short side of the view field, and which line passes through the center of the view field. The arcuate boundary lines overcome distortion produced by the view finder optics so that they are visually recognized as being straight.

    摘要翻译: 用于照相机的液晶显示装置包括具有用于提供照相信息的显示的液晶材料的显示部件和用于形成要拍摄的被摄体的图像的聚焦玻璃。 掩模面向显示构件和聚焦玻璃,掩模包括面向显示构件的显示部分的第一透明部分和面对形成在聚焦玻璃上的物体图像的第二透明部分。 在荫罩的第一透明部分和第二透明部分之间设置遮光部分,以使显示部件的端部从光线上遮光。 该掩模使得相机中提供的取景器光学元件能够显示具有直视相机用户的矩形视野。 这是通过在第一和第二透明部分和掩模的遮光部分之间形成边界线来实现的,其中每个边界线基本上形成具有位于垂直于长边和短边之一的直线上的中心的圆弧 的视图字段,哪条线通过视图字段的中心。 弧形边界线克服了取景器光学器件产生的变形,使得它们被视觉上被认为是直的。

    Camera
    29.
    发明授权
    Camera 失效
    相机

    公开(公告)号:US4431287A

    公开(公告)日:1984-02-14

    申请号:US267045

    申请日:1981-05-26

    IPC分类号: G03B7/087 G03B7/081 G03B7/20

    摘要: This invention relates to cameras capable of making exposures in shutter priority, or manual and program modes. Since in the program mode the shutter time and diaphragm aperture are unequivocally determined, the computed value of shutter time is liable to exceed a limit such that effects of shaking of the operator's hand become noticeable. The present invention solves this problem by making use of the shutter dial used for selection of the shutter priority or manual mode to set the limit value. When a longer shutter time than this limit is derived, the diaphragm aperture is readjusted in accordance with this limit of shutter time and the object brightness, while the shutter is adjusted to that limit value.

    摘要翻译: 本发明涉及能够进行快门优先曝光的照相机,或手动和程序模式。 由于在程序模式中明确地确定了快门时间和光阑孔径,因此计算出的快门时间值容易超过操作者的手抖动的效果。 本发明通过使用用于选择快门优先级或手动模式的快门拨盘来设置限制值来解决这个问题。 当获得比此限制更长的快门时间时,根据快门时间和对象亮度的这个限制来重新调整光阑孔径,同时将快门调整到该限制值。

    Focusing screen interchanging device in single lens reflex camera
    30.
    发明授权
    Focusing screen interchanging device in single lens reflex camera 失效
    聚焦屏交换设备在单镜头反光相机

    公开(公告)号:US4346973A

    公开(公告)日:1982-08-31

    申请号:US230272

    申请日:1981-01-30

    CPC分类号: G03B19/12 G03B13/24 G03B13/28

    摘要: In a single lens reflex camera a focusing screen is removably attached with a focusing screen fitting member unitarily formed therewith for fitting the focusing screen in the camera body with a spring being provided therebetween to form a focusing screen unit. The focusing screen fitting member is provided with a clamp holder portion for engagement with an interchanging tool for use in attaching and detaching the focusing screen unit to and from the camera body, whereby the interchanging operation of the focusing screen may be performed with ease and safety.

    摘要翻译: 在单个透镜反射相机中,聚焦屏幕可拆卸地附着有与其一体形成的聚焦屏幕配件,用于将聚焦屏幕装配在照相机主体中,其间设置弹簧以形成聚焦屏幕单元。 聚焦屏幕配件构件设置有夹具保持器部分,用于与用于将聚焦屏单元连接和从相机主体分离的互换工具接合,由此可以容易且安全地执行聚焦屏的交换操作 。