Light measurement device
    1.
    发明授权
    Light measurement device 失效
    光测量装置

    公开(公告)号:US5327210A

    公开(公告)日:1994-07-05

    申请号:US22790

    申请日:1993-02-23

    IPC分类号: G01J1/42 G01J1/44

    摘要: A light measurement device includes a photoelectric converter for receiving light from an object to be measured and converting the light to a measuring electrical energy in accordance with the intensity of the light, an offset amount measurement device for measuring the offset amount of the photoelectric converter, temperature measurement device for measuring a first temperature of the photoelectric converter when measuring the offset amount, and a second temperature of the photoelectric converter when measuring the light from the object, a memory device for storing a characteristic of the photoelectric converter with respect to temperature, correction amount calculation device for calculating a correction amount based on the characteristic, the first temperature, and the second temperature, and a light intensity calculation device for calculating a light intensity based on the measuring electrical energy, the offset amount, and the correction amount.

    摘要翻译: 光测量装置包括用于接收来自被测量物体的光的光电转换器,并根据光的强度将光转换成测量电能;测量光电转换器偏移量的偏移量测量装置, 温度测量装置,用于当测量偏移量时测量光电转换器的第一温度,以及当测量来自物体的光时光电转换器的第二温度,存储光电转换器相对于温度的特性的存储器件, 校正量计算装置,用于基于特性,第一温度和第二温度计算校正量;以及光强度计算装置,用于基于测量电能,偏移量和校正量来计算光强度。

    Device for measuring luminance of fluourscent screen of cathode ray tube
    2.
    发明授权
    Device for measuring luminance of fluourscent screen of cathode ray tube 失效
    用于测量阴极射线管荧光屏亮度的装置

    公开(公告)号:US5122651A

    公开(公告)日:1992-06-16

    申请号:US550636

    申请日:1990-07-10

    CPC分类号: H04N17/04 H01J9/42

    摘要: A device for measuring a luminance of a fluorescent screen of a cathode ray tube includes a photoelectric conversion device for receiving light from the fluorescent screen and converting the light to electrical energy, an integral device for integrating the electrical energy, a measurement device for measuring the glowing interval time of the cathode ray tube, and a control device for controlling the integral device so as to integrate the electric energy for a general integral time corresponding to the interval time. Also, this device has a calculation device for calculating an offset integrated electrical energy corresponding to a bias component of the photoelectric conversion device, another calculation device for calculating a true integrated electrical energy by subtracting the offset integrated electrical energy from the measured general integrated electrical energy.

    摘要翻译: 用于测量阴极射线管的荧光屏的亮度的装置包括:用于从荧光屏接收光并将光转换成电能的光电转换装置,用于积分电能的整体装置,用于测量 阴极射线管的发光间隔时间,以及用于控制积分装置的控制装置,以将电能整合为与间隔时间相对应的一般积分时间。 此外,该装置具有用于计算与光电转换装置的偏置分量对应的偏移积分电能的计算装置,另一计算装置,用于通过从所测量的一般综合电能中减去偏移积分电能来计算真实积分电能 。

    Enlarger for use in photography
    5.
    发明授权
    Enlarger for use in photography 失效
    放大镜用于摄影

    公开(公告)号:US4576470A

    公开(公告)日:1986-03-18

    申请号:US532717

    申请日:1983-09-14

    IPC分类号: G03B27/46 G03B27/73 G03B27/80

    CPC分类号: G03B27/735

    摘要: An enlarger for use in photography capable of printing a color copy from a color original film includes a light source for generating a plurality of primary colors and a microcomputer for controlling the light source. The microcomputer has various functions which are: for providing a plurality of exposure data corresponding to a plurality of primary colors; for designating at least one of the primary colors; for altering the exposure data corresponding to the designated primary color; for displaying an information relating to the exposure data to be altered; for indicating the direction of change in tone of the color copy caused by altering the exposure data; for selecting the type of the original film; and for controlling the relation between the direction of change in tone of the color copy as indicated and the direction of change in the exposure data as displayed in response to the selected type of original film.

    摘要翻译: 用于能够从彩色原版胶片打印彩色副本的摄影用的放大器包括用于产生多种原色的光源和用于控制光源的微型计算机。 微型计算机具有以下功能:用于提供对应于多种原色的多个曝光数据; 用于指定至少一种原色; 用于改变对应于所指定的原色的曝光数据; 用于显示与要改变的曝光数据有关的信息; 用于指示通过改变曝光数据引起的彩色副本的色调变化方向; 用于选择原始电影的类型; 并且用于控制如所指示的彩色复印件的色调变化方向与响应于所选择的原始胶片类型显示的曝光数据的变化方向之间的关系。

    Light measuring device
    6.
    发明授权
    Light measuring device 失效
    光测量装置

    公开(公告)号:US4994845A

    公开(公告)日:1991-02-19

    申请号:US446383

    申请日:1989-12-05

    CPC分类号: G01J1/4214

    摘要: An improved light measuring device for measuring flash light is provided, and includes a sensor for measuring the quantity of flash light to produce a flash measuring signal. A starting signal is produced upon a detection of the start of the flash emission to enable the sensor for measuring the quantity of flash light. The light measuring device is kept in an operative condition for a predetermined time period after it is manually turned on so that it is available to detect the start of any flash emission during that time period. A counter can be utilized to set the predetermined time period, and the counter can be reset in response to any light measuring operation.

    Light measuring device
    8.
    发明授权
    Light measuring device 失效
    光测量装置

    公开(公告)号:US4655576A

    公开(公告)日:1987-04-07

    申请号:US697711

    申请日:1985-02-01

    IPC分类号: G01J1/42 G03B15/05

    CPC分类号: G03B15/05 G03B2215/05

    摘要: A light measuring device for use in flash photography, which measures preliminary flash light and ambient light to obtain camera exposure information under a mixture of primary flash light and ambient light, there are provided light measuring means and means for displaying the result of the measurement in such a manner that the desired exposure information of the several positions of the photographic object can be displayed on a common scale so that the effect of the flash light, ambient light and the total light can be recognized in one glance.

    摘要翻译: 一种用于闪光摄影的光测量装置,其用于测量初步闪光和环境光以在初级闪光灯和环境光的混合下获得照相机曝光信息,提供了光测量装置和装置,用于将测量结果显示在 这样一种方式,可以以共同的尺度显示摄影对象的几个位置的期望的曝光信息,从而可以一目了然地识别闪光,环境光和总光的影响。

    Key switch input control circuit
    9.
    发明授权
    Key switch input control circuit 失效
    钥匙开关输入控制电路

    公开(公告)号:US4482978A

    公开(公告)日:1984-11-13

    申请号:US296144

    申请日:1981-08-25

    CPC分类号: G06F15/0216 G03B7/0807

    摘要: In an instrument such as an electronic desk-top or pocket calculator, an exposure meter or the like, having a plurality of data-inputting switches in the form of a pushbutton switch, key switch, pressure or touch sensor switch, a control switch is provided for preventing inadvertent change of data stored or registered in the instrument. To this end, gates are interposed between the data inputting switches and a data storage member in the instrument. The instrument could alternatively include a microcomputer programmed to change its stored data in response to the operation of the input switches and to be prevented from changing the data upon operation of the control switch.

    摘要翻译: 在诸如电子桌面或袖珍计算器,曝光表等的仪器中,具有按钮开关,按键开关,压力或触摸传感器开关形式的多个数据输入开关,控制开关是 用于防止意外更改在仪器中存储或注册的数据。 为此,门被插入在数据输入开关和仪器中的数据存储构件之间。 仪器可以替代地包括微处理器,其被编程为响应于输入开关的操作而改变其存储的数据,并且在操作控制开关时防止其改变数据。

    Light source device
    10.
    发明授权
    Light source device 失效
    光源装置

    公开(公告)号:US4857967A

    公开(公告)日:1989-08-15

    申请号:US156424

    申请日:1988-02-16

    摘要: In a light source device in which one or more light emitting tubes are adapted to emit light sequentially, there are provided one or more counters for counting the number of times of failure of light emission of the light emitting tubes, and comparator or judging circuit for comparing the number counted by the counters with a predetermined number to produce an interruption signal when the counted number is over the predetermined value, a control unit acts to interrupt the light emission of the light emitting tube in response to the interruption signal and a warning device is activated for indicating a warning in response to the interruption signal.

    摘要翻译: 在其中一个或多个发光管适于依次发光的光源装置中,设置有一个或多个计数器,用于对发光管的发光故障次数进行计数,以及比较器或判断电路 当计数值超过预定值时,将由计数器计数的数量与预定数量进行比较以产生中断信号,控制单元响应于中断信号而起作用以中断发光管的发光,以及警告装置 被激活以响应于中断信号指示警告。