公开(公告)号：US4243308A

公开(公告)日：1981-01-06

申请号：US920254

申请日：1978-06-29

申请人： Sadao Yamada ,  Isao Arita ,  Tadashi Ito ,  Soichi Nakamoto

发明人： Sadao Yamada ,  Isao Arita ,  Tadashi Ito ,  Soichi Nakamoto

IPC分类号： G03B7/093 ,  G03B17/18

CPC分类号： G03B7/093

摘要： The present invention relates to an exposure computation circuit by means of which a computation is carried out with the values inversely proportional to all the exposure factors excepting the diaphragm value of the APEX system so as to obtain computation results in proportional relation with the actual shutter time value or the actual diaphragm value in order to control the exposure basing upon the computation results.

摘要翻译： 曝光计算电路本发明涉及曝光计算电路，通过该曝光计算电路以与APEX系统的光阑值以外的所有曝光因子成反比的值进行计算，以获得与实际快门时间成比例关系的计算结果 值或实际振膜值，以便根据计算结果控制曝光。

公开(公告)号：US4139289A

公开(公告)日：1979-02-13

申请号：US746205

申请日：1976-12-01

申请人： Sadao Yamada ,  Isao Arita ,  Tadashi Ito ,  Soichi Nakamoto

发明人： Sadao Yamada ,  Isao Arita ,  Tadashi Ito ,  Soichi Nakamoto

IPC分类号： G03B7/093 ,  G03B7/08

CPC分类号： G03B7/093

摘要： The present invention relates to an exposure computation circuit by means of which a computation is carried out with the values inversely proportional to all the exposure factors excepting the diaphragm value of the APEX system so as to obtain computation results in proportional relation with the actual shutter time value or the actual diaphragm value in order to control the exposure basing upon the computation results.

摘要翻译： 曝光计算电路本发明涉及曝光计算电路，通过该曝光计算电路以与APEX系统的光阑值以外的所有曝光因子成反比的值进行计算，以获得与实际快门时间成比例关系的计算结果 值或实际振膜值，以便根据计算结果控制曝光。

公开(公告)号：US3982254A

公开(公告)日：1976-09-21

申请号：US561624

申请日：1975-03-24

申请人： Tadashi Ito ,  Soichi Nakamoto ,  Sadao Yamada

发明人： Tadashi Ito ,  Soichi Nakamoto ,  Sadao Yamada

IPC分类号： G03B17/18 ,  G03B17/20 ,  G06F3/147 ,  G09F9/30 ,  G09G3/14

CPC分类号： G03B17/20

摘要： An indication system of a camera which allows the use of an indication system such that photographing information of a camera is indicated with illumination by a plural number of indication elements being positioned in parallel. Further such letters and symbols which distinguish different kinds of photographing information are indicated by at least a part of the plural number of indication elements.

摘要翻译： 一种照相机的指示系统，其允许使用指示系统，使得照相机的拍摄信息由并行定位的多个指示元件的照明指示。 另外，区分不同种类的拍摄信息的这种字母和符号由多个指示元素的至少一部分指示。

公开(公告)号：US4245900A

公开(公告)日：1981-01-20

申请号：US864479

申请日：1977-12-27

申请人： Soichi Nakamoto ,  Fumio Ito ,  Yasuo Isobe ,  Tadashi Ito

发明人： Soichi Nakamoto ,  Fumio Ito ,  Yasuo Isobe ,  Tadashi Ito

IPC分类号： G03B7/091 ,  G03B7/097

CPC分类号： G03B7/097

摘要： An electronic exposure control apparatus for a camera includes a setting means to set the exposure factor, a compression means connected to the setting means, for compressing the above-mentioned exposure factor logarithmically and an analogue-digital conversion means, being connected to said compression means, and generating a pulse number which corresponds to the output from the compression means. Also included is a first counter, which is connected to the output of the above-mentioned analogue-digital conversion means, for counting the pulse number from the above-mentioned analogue-digital conversion means, a pulse generating means, a binary counter having plural number of bits and connected to the output of the above-mentioned pulse generating means, wherein the counter counts the pulse number from the above-mentioned pulse generating means in association with shutter release, and the output of the counter is connected to the first counter for resetting the memorized content of the first counter. A coincidence detection means is connected to the output of the binary counter, wherein the means generates signals when the memorized content of the first counter is reset, and a control means is connected to the above-mentioned coincidence detection means, wherein the opening and closing of shutter is controlled by the signal from the above-mentioned coincidence detection means.

摘要翻译： 一种用于照相机的电子曝光控制装置包括：设置曝光因子的设定装置，连接到设定装置的压缩装置，用于压缩上述对数曝光因子和模拟数字转换装置，连接到所述压缩装置 并产生对应于来自压缩装置的输出的脉冲数。 还包括第一计数器，其连接到上述模拟数字转换装置的输出端，用于对来自上述模拟数字转换装置的脉冲数进行计数，脉冲发生装置，具有多个数字转换装置的二进制计数器 与上述脉冲发生装置的输出端连接的位数，其中计数器与上述脉冲发生装置相关的快门释放计数脉冲数，计数器的输出连接到第一计数器 用于重置第一计数器的存储内容。 重合检测装置连接到二进制计数器的输出端，其中当第一计数器的存储内容被复位时，该装置产生信号，并且控制装置连接到上述重合检测装置，其中打开和关闭 快门的控制由来自上述重合检测装置的信号控制。

公开(公告)号：US4057809A

公开(公告)日：1977-11-08

申请号：US666458

申请日：1976-03-12

申请人： Soichi Nakamoto ,  Tadashi Ito ,  Fumio Ito ,  Nobuhiko Shinoda

发明人： Soichi Nakamoto ,  Tadashi Ito ,  Fumio Ito ,  Nobuhiko Shinoda

IPC分类号： G01J1/46 ,  G03B7/093

CPC分类号： G03B7/093

摘要： This invention relates to photographic cameras, and more particularly to an exposure control circuit of the type in which an analog output representative of the object brightness level is converted to a digital signal which is factored into an exposure value, and the period of actuation of the camera shutter is controlled in accordance with this exposure value. Still more particularly, it relates to an improvement over this conventional type exposure control with respect to the A-D conversion. The prior art converts a voltage representative of the object brightness to a digital form by the use of an A-D converter such as of the follow comparison type which is characterized by the lack of integrating aspect in converting the input voltage to the corresponding digital signal. Therefore, when the illumination for the object being photographed is caused to flicker in a period of time shorter than the effective exposure time interval, an alternating current component is introduced into the input voltage of the converter. Accordingly, it is made impossible to effect accurate exposure control based on the digital signal representing the only object brightness level. The invention provides an exposure control circuit which is not susceptible of this alternate current component as it is removed in the course of the A-D conversion.

摘要翻译： 本发明涉及摄影相机，更具体地说，涉及一种类型的曝光控制电路，其中表示对象亮度级的模拟输出被转换成被考虑到曝光值中的数字信号，以及 照相机快门根据此曝光值进行控制。 更具体地，涉及相对于A-D转换的这种常规型曝光控制的改进。 现有技术通过使用诸如以下比较类型的A-D转换器将表示对象亮度的电压转换为数字形式，其特征在于在将输入电压转换为相应的数字信号时缺乏集成方面。 因此，当拍摄对象的照明在比有效曝光时间间隔短的时间段内被闪烁时，将交流分量引入转换器的输入电压。 因此，不可能基于表示唯一对象亮度级的数字信号来实现精确的曝光控制。 本发明提供了一种曝光控制电路，其在A-D转换过程中被去除时不会受到该交流分量的影响。

公开(公告)号：US4534640A

公开(公告)日：1985-08-13

申请号：US664924

申请日：1984-10-24

申请人： Tadashi Ito ,  Yasuo Isobe ,  Fumio Ito ,  Soichi Nakamoto

发明人： Tadashi Ito ,  Yasuo Isobe ,  Fumio Ito ,  Soichi Nakamoto

IPC分类号： G03B7/095 ,  G03B7/085 ,  G03B17/00

CPC分类号： G03B7/095

摘要： An exposure control system for a photographic camera of the type provided with a shutter preselection automatic exposure range and a diaphragm preselection automatic exposure range, wherein various exposure control parameters are digitized and applied to a digital computer for providing either shutter interval or diaphragm aperture control signals. For exposure control in the shutter preselection automatic exposure range, there are provided a signal generator associated with the camera diaphragm mechanism, an analog-to-digital converter cooperative therewith for providing digital signals corresponding to ever varying aperture sizes as the diaphragm mechanism is operated from its fully open position, and a comparator connected between said computer and converter upon detection of coincidence of the signal from the computer with one of the signals from the converter to provide a diaphragm mechanism arresting signal. Further, the invention provides various types of non-contact device usuable as the diaphragm information generator.

摘要翻译： 一种具有快门预选自动曝光范围和光圈预选自动曝光范围的类型的照相机的曝光控制系统，其中各种曝光控制参数被数字化并应用于数字计算机，以提供快门间隔或光圈孔径控制信号 。 对于快门预选自动曝光范围中的曝光控制，提供了与照相机光阑机构相关联的信号发生器，与之相配合的模拟 - 数字转换器，用于提供对应于不断变化的光圈尺寸的数字信号， 其完全打开位置以及连接在所述计算机和转换器之间的比较器，用于检测来自计算机的信号与来自转换器的信号之一的一致以提供隔膜机构阻滞信号。 此外，本发明提供了可用作隔膜信息发生器的各种类型的非接触装置。

公开(公告)号：US4353630A

公开(公告)日：1982-10-12

申请号：US871492

申请日：1978-01-23

申请人： Fumio Ito ,  Tadashi Ito ,  Soichi Nakamoto ,  Yasuo Isobe

发明人： Fumio Ito ,  Tadashi Ito ,  Soichi Nakamoto ,  Yasuo Isobe

IPC分类号： G03B7/0805 ,  G03B7/091 ,  G03B7/095 ,  G03B7/14

CPC分类号： G03B7/097

摘要： A camera having an exposure control device in which various photographing informations are converted into digital amounts and supplied to a digital operation circuit and the exposure is controlled by the output of the operation circuit. The camera comprises a digital-analogue converter for converting diaphragm informations from the operation circuit into analogue diaphragm informations, a comparison means for comparing the analogue diaphragm informations from a photographing lens with the analogue informations from the above digital-analogue converter, and an alternating switch which supplies the informations from the photographing lens to the comparison means for shutter preference photographing, and supplies the analogue informations from the photographing lens to the analogue-digital converter for diaphragm preference photographing. The output of the analogue-digital converter is supplied to the operation circuit, and the shutter preference and diaphragm preference photographings is made possible by the changeover of the alternating switch.

摘要翻译： 一种具有曝光控制装置的相机，其中各种拍摄信息被转换成数字量并提供给数字操作电路，并且曝光由操作电路的输出控制。 相机包括用于将来自操作电路的光阑信息转换为模拟信息的数模转换器，用于将来自拍摄镜头的模拟信息与来自上述数模转换器的模拟信息进行比较的比较装置，以及交替开关 其将来自拍摄镜头的信息提供给用于快门偏好拍摄的比较装置，并且将来自拍摄镜头的模拟信息提供给用于隔膜偏好拍摄的模拟数字转换器。 模拟数字转换器的输出被提供给操作电路，并且通过交替开关的切换使得快门优先和隔膜偏好照片成为可能。

公开(公告)号：US4125848A

公开(公告)日：1978-11-14

申请号：US787793

申请日：1977-04-15

申请人： Tadashi Ito ,  Fumio Ito ,  Soichi Nakamoto ,  Yasuo Isobe

发明人： Tadashi Ito ,  Fumio Ito ,  Soichi Nakamoto ,  Yasuo Isobe

IPC分类号： G03B7/00 ,  G03B7/081 ,  G03B7/085 ,  G03B9/58 ,  G03B19/12 ,  G03B7/08

CPC分类号： G03B19/12 ,  G03B7/00 ,  G03B7/085 ,  G03B7/087 ,  G03B7/089 ,  G03B9/58

摘要： An exposure control for a single lens reflex camera includes an adjustable shutter which is arranged to furnish a plurality of exposure times, and an adjustable electrical delay circuit which is operative to adjust the shutter to select the exposure time. An adjustable diaphragm is also included which is arranged to furnish a plurality of aperture sizes and is mounted into a lens and which further includes circuitry for receiving light from a photographing object through the diaphragm and converting it into electrical signal. A diaphragm determining device is connected with the diaphragm to select an aperture size, and which is connected to the receiving circuitry and further includes circuitry for detecting the adjustable aperture limit connected with the delay circuit to compensate the adjusted exposure time for proper exposure. A manually operated selector is included for adjusting the diaphragm determining device to insert the adjusted time. A storage capacitor is also included for memorizing the electrical signal of the receiving circuitry connected with the delay circuit when shutter operation is effected.

摘要翻译： 用于单个镜头反射照相机的曝光控制器包括布置成提供多个曝光时间的可调节快门以及可调节电延迟电路，其可操作以调节快门以选择曝光时间。 还包括可调整的膜片，其被布置成提供多个孔径尺寸并且被安装到透镜中，并且还包括用于通过隔膜接收来自拍摄对象的光并将其转换成电信号的电路。 光阑确定装置与光阑连接以选择光圈尺寸，并且其连接到接收电路，并且还包括用于检测与延迟电路相连接的可调节孔径极限的电路，以补偿经适当曝光的调整曝光时间。 包括一个手动选择器，用于调节隔膜确定装置以插入调整时间。 还包括存储电容器，用于在快门操作时存储与延迟电路连接的接收电路的电信号。

公开(公告)号：US4053909A

公开(公告)日：1977-10-11

申请号：US547462

申请日：1975-02-06

申请人： Nobuhiko Shinoda ,  Tadashi Ito ,  Fumio Ito ,  Soichi Nakamoto

发明人： Nobuhiko Shinoda ,  Tadashi Ito ,  Fumio Ito ,  Soichi Nakamoto

IPC分类号： G03B17/24

CPC分类号： G03B17/245 ,  G03B2217/243

摘要： The present invention relates to an equipment which converts various data, including exposure setting data, for a photograph into codes so as to be stored in a register in order that the data stored in the register is later decoded and registered on the film. The equipment comprises a decoder for reading out and decoding the stored data in accordance with a signal corresponding to the feeding of the film and a plural number of registering heads operated by means of the output of the decoder, whereby the stored data is registered on the film in general indications such as letters or figures.

摘要翻译： 本发明涉及将用于照片的各种数据（包括曝光设置数据）转换成代码以将其存储在寄存器中的设备，以使得存储在寄存器中的数据稍后被解码并登记在电影上。 该设备包括：解码器，用于根据与胶片馈送相对应的信号和通过解码器的输出操作的多个记录头来读出和解码存储的数据，由此存储的数据被登记在 一般的电影，如字母或数字。

公开(公告)号：US4106033A

公开(公告)日：1978-08-08

申请号：US697108

申请日：1976-06-17

申请人： Soichi Nakamoto ,  Nobuaki Sakurada ,  Tadashi Ito ,  Fumio Ito ,  Nobuhiko Shinoda

发明人： Soichi Nakamoto ,  Nobuaki Sakurada ,  Tadashi Ito ,  Fumio Ito ,  Nobuhiko Shinoda

IPC分类号： G03B17/20 ,  G03B7/08

CPC分类号： G03B17/20

摘要： A camera having a digital exposure control device which converts photographing informations into digital amounts and computes them according to the Appex system, and in which the Appex value of the photographing conditions supplied by the above computing operation is converted into practical indications such as numerical references.

摘要翻译： 具有将摄影信息转换为数字量并且根据Appex系统计算它们的数字曝光控制装置的相机，其中通过上述计算操作提供的拍摄条件的Appex值被转换成诸如数字参考的实际指示。