公开(公告)号：US4025931A

公开(公告)日：1977-05-24

申请号：US560318

申请日：1975-03-20

申请人： Tetsuya Taguchi ,  Mutsunobu Yazaki ,  Noriaki Sanada

发明人： Tetsuya Taguchi ,  Mutsunobu Yazaki ,  Noriaki Sanada

IPC分类号： G03B17/24

CPC分类号： G03B17/24 ,  G03B2217/243

摘要： A device for printing an image of an indicium manually selected from a series of indicia representing different exposure values in or near the corresponding exposed frame of the film associated with a camera. Responsive to an actuation of the camera shutter release member, a pulse-forming circuit produces a pulse signal in a predetermined potential form which drives a switching circuit until the time dependant potential of the pulse signal reaches a threshold level for actuating an electronic switch controlling the period of actuation of a lamp by which said selected indicium is illuminated, whereby the time of exposure of the film to the indicium printing light is maintained constant irrespective of variation of the period of actuation of the camera shutter release member.

摘要翻译： 一种用于打印标记的图像的装置，其手动地从表示与相机相关联的胶片的相应曝光框中或附近的不同曝光值的一系列标记中选择。 响应于相机快门释放构件的致动，脉冲形成电路产生预定电势形式的脉冲信号，该脉冲信号驱动开关电路，直到脉冲信号的时间相关电位达到阈值水平，以启动控制 所选择的标记被照亮的灯的致动周期，由此，与照相机快门释放构件的致动周期的变化无关地，胶片暴露于标记印刷光的时间保持恒定。

公开(公告)号：US3988748A

公开(公告)日：1976-10-26

申请号：US534886

申请日：1974-12-20

申请人： Yukio Iura ,  Takashi Uchiyama ,  Masayoshi Yamamichi ,  Yukio Mashimo ,  Tetsuya Taguchi

发明人： Yukio Iura ,  Takashi Uchiyama ,  Masayoshi Yamamichi ,  Yukio Mashimo ,  Tetsuya Taguchi

IPC分类号： G03B7/085 ,  G03B19/12 ,  G03B7/14

CPC分类号： G03B7/085 ,  G03B19/12

摘要： A single lens reflex camera adjusted to a shutter preference exposure range in which responsive to the light sensor and preselected shutter speed, an Appex type computer derives an exposure value which is previously stored, and thereafter automatic adjustment of the diaphragm mechanism in accordance with the stored exposure value starts in substantial coincidence with the start of pivoting movement of the mirror from its viewing to non-viewing position which is followed by the operation of the shutter mechanism to thereby minimize the time interval between the time when the shutter button is depressed and the time at which the shutter is released from its cocked position.

摘要翻译： 根据光传感器和预选的快门速度调整到快门偏好曝光范围的单镜头反光照相机，Appex型计算机得到预先存储的曝光值，然后根据所存储的光盘机构自动调节光阑机构 曝光值与反射镜从其观察到非观看位置的枢转运动的开始基本一致开始，随后是快门机构的操作，从而最小化快门按钮被按下的时间与时间间隔 从快门释放位置的时间。

公开(公告)号：US3973267A

公开(公告)日：1976-08-03

申请号：US534578

申请日：1974-12-19

申请人： Teiji Hashimoto ,  Seiichi Matsumoto ,  Tetsuya Taguchi ,  Takehiko Kiyohara ,  Tokuichi Tsunekawa

发明人： Teiji Hashimoto ,  Seiichi Matsumoto ,  Tetsuya Taguchi ,  Takehiko Kiyohara ,  Tokuichi Tsunekawa

IPC分类号： G03B7/081 ,  G03B7/085 ,  G03B7/08

CPC分类号： G03B7/085

摘要： The present invention relates to an exposure control apparatus for a camera which is so designed that the output terminal of the light measuring circuit of the brightness of the object to be photographed having a photo electric transducing means is connected to one input terminal of an operation amplifier. The output of the photographing information setting circuit, having a variable resistance means for setting other photographing informations than the information of the brightness of the object to be photographed, is connected to the other input terminal of the above mentioned operation amplifier. This is done in such a manner that proper exposure conditions can be obtained by means of the output of the exposure control circuit connected to the output of the above mentioned operation amplifier. Each input signal to the operational amplifier is adjusted by a bias signal which is controlled in accordance with ambient temperature conditions.

摘要翻译： 本发明涉及一种照相机的曝光控制装置，其被设计成使得具有光电转换装置的被拍摄对象的亮度的光测量电路的输出端子连接到运算放大器的一个输入端 。 具有用于设置其他拍摄信息的可变电阻装置的拍摄信息设置电路的输出与被拍摄对象的亮度的信息相连接，连接到上述运算放大器的另一输入端。 这样可以通过连接到上述运算放大器的输出的曝光控制电路的输出来获得适当的曝光条件。 通过根据环境温度条件控制的偏置信号来调整到运算放大器的每个输入信号。