Digital information conversion system
    2.
    发明授权
    Digital information conversion system 失效
    数字信息转换系统

    公开(公告)号:US4125832A

    公开(公告)日:1978-11-14

    申请号:US786797

    申请日:1977-04-12

    CPC分类号: H03M7/001 G03B7/091

    摘要: A conversion system for a camera of a type controlled through computation of digital information. The system converts a coded digital value into a digital value of another coding. The code which comprises a gray code representing an integer part of the value and a code pattern representing a decimal part of the value is converted in such a manner that: The integer part is converted into a binary code while the decimal part is converted into a code to which a weight of 1/2, 1/4 or 1/8 is applied. With such a method of conversion employed, values set at 1/3 increment or decrement steps such as ASA film sensitivity values are readily converted into binary codes to facilitate the computing operation of the camera.

    摘要翻译: 用于通过计算数字信息控制的类型的照相机的转换系统。 系统将编码的数字值转换为另一编码的数字值。 包含表示该值的整数部分的灰度代码的代码和表示该值的小数部分的代码模式被转换成:将整数部分转换为二进制代码,而将小数部分转换为 施加1/2,1/4或1/8的重量的代码。 通过采用这种转换方法,将设置为1/3的增量或递减步骤(例如ASA胶片敏感度值)的值容易地转换为二进制码,以便于照相机的计算操作。

    Display device
    3.
    发明授权
    Display device 失效
    显示设备

    公开(公告)号:US4291960A

    公开(公告)日:1981-09-29

    申请号:US017923

    申请日:1979-03-06

    CPC分类号: G08B5/36 G03B17/18

    摘要: In the display system disclosed, a manually operated switching arrangement sets a display circuit, which displays data in response to a data signal from a data circuit, either into a display mode or a non-display mode. A control arrangement controls the display of the display circuit independently of the switching arrangement and produces a display signal automatically when a display operation is necessary. A warning circuit sets the display circuit into the display state independent of the switching means for displaying warning data instead of display data.

    摘要翻译: 在所公开的显示系统中,手动切换装置设置显示电路,显示电路响应于来自数据电路的数据信号显示数据到显示模式或非显示模式。 控制装置独立于开关装置控制显示电路的显示,并且当需要显示操作时自动产生显示信号。 警告电路将显示电路设置为独立于用于显示警告数据而不是显示数据的切换装置的显示状态。

    Exposure indicator control circuit
    5.
    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。

    Shutter speed display device for a camera
    6.
    发明授权
    Shutter speed display device for a camera 失效
    相机快门速度显示装置

    公开(公告)号:US4821056A

    公开(公告)日:1989-04-11

    申请号:US141490

    申请日:1980-04-18

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

    CPC分类号: G03B7/093 G03B17/20

    摘要: A digital display system connected to an exposure indicator in a camera to provide a digital display representative of the exposure value in shutter speed by an array of numerical indicators of the block number eight type. When the numerical value of shutter speed is equal to or larger than one second, the indicator which is directly to the right of the least significant digit is utilized to display an indicium representing a "second" unit as is usual in digital stop watch art by driving a pair of upper-positioned parallel segments in the "FIG. eight" pattern to be lit serially from the least significant digit.

    摘要翻译: 连接到照相机中的曝光指示器的数字显示系统,通过块数8类型的数字指示器阵列提供代表快门速度的曝光值的数字显示。 当快门速度的数值等于或大于1秒时,直接在最低有效位右侧的指示符被用来显示代表“数字秒表”中常用的“第二”单位的标记 在“图8”模式中驱动一对上位平行段,从最低有效数字串行点亮。

    Camera with program system
    7.
    发明授权
    Camera with program system 失效
    相机与程序系统

    公开(公告)号:US4329034A

    公开(公告)日:1982-05-11

    申请号:US175950

    申请日:1980-08-07

    CPC分类号: G03B7/087

    摘要: In the disclosed camera, an exposure value determining arrangement produces an electrical signal in response to a light measuring facility and a film sensitivity setting device. An exposure factor unit determines a combination of shutter speed and aperture value for a proper exposure in response to the exposure value determining arrangement. A control connected to the exposure factor unit varies the combination of exposure factors in the exposure factor unit in response to the set position of a program constant setting arrangement which is set for a particular program constant.

    摘要翻译: 在所公开的相机中,曝光值确定装置响应于光测量设备和胶片感光度设置而产生电信号。 曝光因子单元响应于曝光值确定装置确定适当曝光的快门速度和光圈值的组合。 连接到曝光因子单元的控制响应于针对特定节目常数设置的节目恒定设置布置的设置位置来改变曝光因子单元中的曝光因子的组合。

    Program-controlled camera
    8.
    发明授权
    Program-controlled camera 失效
    程控摄像机

    公开(公告)号:US4345829A

    公开(公告)日:1982-08-24

    申请号:US128400

    申请日:1980-03-10

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

    CPC分类号: G03B7/087

    摘要: The present invention concerns with a so-called program-controlled camera where only one different combination of diaphragm aperture and shutter time value is determined based on a different object brightness. Particularly in the program-controlled camera where the object brightness is measured at the full open aperture and then combined with the preset value of film speed to derive a difference between the full open aperture and the effective diaphragm value, in accordance with which the shutter time is controlled while the diaphragm is adjusted to that effective value, a device is provided for carrying out a program shift in automatic response to the full open aperture value of the interchangeable lens used in the camera.

    摘要翻译: 本发明涉及一种所谓程控摄像机,其中仅基于不同的物体亮度来确定光圈孔径和快门时间值的一个不同的组合。 特别是在程序控制的相机中,其中在全开孔径处测量物体亮度,然后与胶片速度的预设值相结合,以导出全开孔径和有效光圈值之间的差异,根据该相机的快门时间 在光阑被调节到该有效值的同时被控制,提供用于执行程序移位以自动响应于相机中使用的可互换镜头的全开孔径值的装置。

    Camera
    9.
    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。