Timed piezoelectric shutter control for cameras
    1.
    发明授权
    Timed piezoelectric shutter control for cameras 失效
    相机定时压电快门控制

    公开(公告)号:US4119979A

    公开(公告)日:1978-10-10

    申请号:US816835

    申请日:1977-07-18

    IPC分类号: G03B7/08 G03B7/083

    CPC分类号: G03B7/083 G03B7/0807

    摘要: A camera is disclosed which includes a shutter latchable in an open position to permit scene light to pass through a camera aperture, an electronic circuit for producing a sudden change in voltage after an exposure period determined by the level of scene luminance, and a piezoelectric energy conversion device, such as a bimorph, which is responsive to such voltage change to rapidly change shape and thereby unlatch the shutter and allow it to move toward a closed position.

    摘要翻译: 公开了一种照相机,其包括可打开位置的快门,以允许场景光通过照相机孔径,用于在由场景亮度水平确定的曝光周期之后产生电压的突然变化的电子电路和压电能量 转换装置,例如双压电晶片,其响应于这种电压变化以快速地改变形状,从而解锁快门并允许其朝着关闭位置移动。

    Piezoelectric electronic shutter control for cameras
    2.
    发明授权
    Piezoelectric electronic shutter control for cameras 失效
    用于相机的压电电子快门控制

    公开(公告)号:US4104657A

    公开(公告)日:1978-08-01

    申请号:US816834

    申请日:1977-07-18

    CPC分类号: G03B7/083 G03B9/40 G03B9/62

    摘要: A shutter control device is disclosed which includes a shutter which is openable to permit scene light to pass through a camera aperture, an electronic circuit for producing a signal which varies in accordance with the level of scene illumination, and a single piezoelectric energy conversion device such as a bimorph for providing electrical energy to the circuit and for controlling the condition of the shutter in response to the signal from the electronic circuit to automatically establish the exposure period.

    摘要翻译: 公开了一种快门控制装置,其包括可打开以允许场景光通过相机孔的快门,用于产生根据场景照明的水平而变化的信号的电子电路,以及单个压电能量转换装置 作为用于向电路提供电能并响应于来自电子电路的信号来控制快门的状态以自动建立曝光周期的双压电晶片。

    Mirror-type beam steerer having a virtual pivot
    3.
    发明授权
    Mirror-type beam steerer having a virtual pivot 失效
    具有虚拟枢轴的镜式梁式转向器

    公开(公告)号:US4025203A

    公开(公告)日:1977-05-24

    申请号:US639671

    申请日:1975-12-11

    申请人: James Kelly Lee

    发明人: James Kelly Lee

    CPC分类号: G02B7/1821

    摘要: A mirror-type beam steering apparatus employs at least one flexible mirror support member having, generally, the shape of the Greek letter lambda. Each such member has a pair of flexible leg sections that slant toward one another and are truncated into an interconnecting section. The diverging ends of the leg sections are fixed and an optical beam steering mirror is mounted to the interconnecting section. With this arrangement, a "virtual pivot" occurs at the intersection of the leg section axis (although the legs themselves do not intersect), and torque components applied to deflect the mirror result in rotation of the mirror about the virtual pivot axis. In preferred forms of the invention, the mirror's center of gravity is located on the virtual pivot axis, thereby reducing the inertial resistance to rotation and improving steerer performance.

    摘要翻译: 镜面式光束转向装置采用至少一个柔性反射镜支撑构件,其通常具有希腊字母λ的形状。 每个这样的构件具有一对彼此倾斜并被截短成互连部分的柔性腿部。 腿部的发散端是固定的,并且光束操纵反射镜安装到互连部分。 利用这种布置,“腿部”轴线(尽管腿部本身不相交)发生“虚拟枢轴”,并且施加以使镜子偏转的转矩分量导致镜子围绕虚拟枢转轴线旋转。 在本发明的优选形式中,反射镜的重心位于虚拟枢转轴线上,由此降低了旋转的惯性阻力,提高了转子性能。

    Camera with magnetic roller recorder for repetitively recording information along magnetic track on filmstrip
    4.
    发明授权
    Camera with magnetic roller recorder for repetitively recording information along magnetic track on filmstrip 失效
    带磁辊记录器的相机,用于在胶片上沿着磁迹重复记录信息

    公开(公告)号:US06233407B1

    公开(公告)日:2001-05-15

    申请号:US08698707

    申请日:1996-08-16

    IPC分类号: G03B1724

    CPC分类号: G03B17/24

    摘要: A camera comprises an information-bearing medium movable to record predetermined information on a filmstrip. The information-bearing medium is a magnetic roller recorder on which is magnetically stored the information, and which is rotationally supported in place for stationary rolling contact with a magnetic track on a filmstrip as the filmstrip is advanced, whereby the information can be repetitively recorded along the magnetic track on the filmstrip. The magnetic roller recorder can be provided apart from the camera as an owner-personalization accessory for the camera.

    摘要翻译: 相机包括可移动以在胶片上记录预定信息的信息承载介质。 信息承载介质是一种磁性辊式记录器,在其上磁信息存储,当胶片前进时,其被旋转地支撑在与胶片上的磁道静止滚动接触的位置,由此信息可以沿着重复记录 胶片上的磁迹。 作为照相机的所有者个性化附件,磁辊记录器可以与相机分开设置。