专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4090208A Electronic exposure control apparatus for cameras 失效
标题翻译：电子曝光控制装置
公开(公告)号：US4090208A
公开(公告)日：1978-05-16
申请号：US727628
申请日：1976-09-28
申请人： Nobuhiko Shinoda , Tadashi Ito , Soichi Nakamoto , Fumio Ito
发明人： Nobuhiko Shinoda , Tadashi Ito , Soichi Nakamoto , Fumio Ito
IPC分类号： G03B7/093 , G03B7/08
CPC分类号： G03B7/093
摘要： In the camera exposure control apparatus disclosed, a light sensor produces a first analog signal corresponding to the brightness of an object to be photographed. This signal is compared to a gradually varying second analog signal. The variation of the second analog signal is discontinued when the first and second signals reach a predetermined relationship and the second analog signal is stored. As the aperture of the camera's diaphragm is varied, the stored signal is compared with an analog signal corresponding to the diaphragm opening to produce a control signal that inhibits aperture variation when the latter compared signals reach a predetermined relationship.
摘要翻译：在所公开的照相机曝光控制装置中，光传感器产生与被拍摄物体的亮度对应的第一模拟信号。该信号与逐渐变化的第二模拟信号进行比较。当第一和第二信号达到预定关系并且存储第二模拟信号时，第二模拟信号的变化被中止。随着照相机光阑的孔径变化，将存储的信号与对应于光阑开口的模拟信号进行比较，以产生当后者比较信号达到预定关系时抑制孔径变化的控制信号。

2. 发明授权

US4057809A Exposure control circuit 失效
标题翻译：曝光控制电路
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。

3. 发明授权

US4106033A System for indicating photographing conditions 失效
标题翻译：用于指示拍摄条件的系统
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。

4. 发明授权

US4103307A Exposure control device 失效
标题翻译：接触控制装置
公开(公告)号：US4103307A
公开(公告)日：1978-07-25
申请号：US799568
申请日：1977-05-23
申请人： Nobuhiko Shinoda , Tadashi Ito , Soichi Nakamoto , Fumio Ito
发明人： Nobuhiko Shinoda , Tadashi Ito , Soichi Nakamoto , Fumio Ito
IPC分类号： G03B7/091 , G03B17/20 , G03B7/08
CPC分类号： G03B17/20 , G03B7/097
摘要： An automatic exposure control device to convert the analogue value of an object to be photographed, to digital value for controlling appropriate exposure value using said digital value. The device has a photo-sensing means to sense the light from the object digitally, a photographing information setting means to digitally set various photographing information such as film sensitivity, diaphragm aperture value, shutter speed, etc., a calculating means to digitally calculate diaphragm aperture value, shutter speed value means corresponding to the output of the above mentioned photo-sensing means and the photographing information setting means, a function detecting and setting means to detect and set each functional state, and a sequence control means having an instructional function for various calculating operations to control sequence-wise the computation operation of the above mentioned computation device, corresponding to the output of said function detecting and setting means, wherein the sequence control means determines the photographing mode corresponding to the output of the above mentioned function detecting and setting means. At the same time, appropriate exposure value is calculated by the calculating means in accordance with the content of the above mentioned photographing means and the output of the photo-sensing means is converted to digital value.

5. 发明授权

US4053909A Data registering equipment for a camera 失效
标题翻译：相机数据注册设备
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。

6. 发明授权

US4125846A Electronic exposure control apparatus 失效
标题翻译：电子曝光控制装置
公开(公告)号：US4125846A
公开(公告)日：1978-11-14
申请号：US717669
申请日：1976-08-25
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 , G03B7/08
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 said 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 said 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 said means generates a signal 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 the 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，连接到所述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相连，其中所述计数器与快门释放相关联地对上述脉冲发生装置的脉冲数进行计数，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。一致检测装置连接到二进制计数器的输出端，其中所述装置在第一计数器的存储内容被复位时产生信号，并且控制装置连接到上述重合检测装置，其中，快门的关闭由来自上述重合检测装置的信号控制。

7. 发明授权

US4074292A System for indicating photographic information 失效
标题翻译：制作摄影信息系统
公开(公告)号：US4074292A
公开(公告)日：1978-02-14
申请号：US678033
申请日：1976-04-19
申请人： Soichi Nakamoto , Tadashi Ito , Fumio Ito , Yasuo Isobe
发明人： Soichi Nakamoto , Tadashi Ito , Fumio Ito , Yasuo Isobe
IPC分类号： G03B17/20 , G03B7/00
CPC分类号： G03B17/20
摘要： A system for indicating photographic information which includes a circuit for converting an optical signal into an electrical signal. Comparing elements are provided for comparing the electrical signal with one of a plurality of reference signals having different levels, and electrical elements serve to produce an indication signal responsive to the output from one of the comparing elements. A plurality of luminescent components are connected to the signal producing element for turning-on in response to an indication signal. A plurality of indicating segments indicate the photographic information which the luminescent elements irradiate, the number of indicating segments being less than the number of luminescent elements and at least one of the indicating elements is selectively illuminated by more than one of the luminescent elements. The indicating segments have different colors to indicate different kinds of photographic information, whereby one indicating segment is capable of indicating two different modes of operation of the system. This is a continuation of application Ser. No. 437,621 filed Jan. 29, 1974, now abandoned.

8. 发明授权

US4052727A Exposure control device for a single lens reflex camera 失效
标题翻译：单镜反射相机的曝光控制装置
公开(公告)号：US4052727A
公开(公告)日：1977-10-04
申请号：US527016
申请日：1974-11-25
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 , G03B7/14
CPC分类号： G03B19/12 , G03B7/00 , G03B7/085 , G03B7/089 , G03B9/58
摘要： An exposure control device 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 device is also included which is arranged to furnish a plurality of aperture sizes and is mounted into a lens and which further includes means for receiving light from a photographing object through the diaphragm device and converting it into electrical signal. A diaphragm determining means is connected with the diaphragm device to select an aperture size, and which is connected to the receiving means and further includes means for detecting the adjustable aperture limit connected with the delay circuit to compensate the adjusted exposure time for proper exposure. A manually operated selector means is included for adjusting the diaphragm determining means to insert the adjusted time thereinto. Storage means is also included for memorizing the electrical signal of the receiving means connected with the delay means when shutter operation is effected.

9. 发明授权

US4045807A Automatic exposure control apparatus which prevents simultaneous diaphragm and shutter speed preselection 失效
标题翻译：自动接触控制装置，同时防止同时进行的膜片和快门速度的选择
公开(公告)号：US4045807A
公开(公告)日：1977-08-30
申请号：US638029
申请日：1975-12-05
申请人： Fumio Ito , Tadashi Ito , Yasuo Isobe , Soichi Nakamoto
发明人： Fumio Ito , Tadashi Ito , Yasuo Isobe , Soichi Nakamoto
IPC分类号： G03B7/081 , G03B7/083 , G03B9/07 , G03B9/58 , G03B7/08 , G03B9/00
CPC分类号： G03B9/07 , G03B7/083 , G03B7/087 , G03B9/58
摘要： An automatic exposure control apparatus for a single lens reflex camera equipped with a shutter speed preselection exposure range and a diaphragm aperture preselection exposure range. When the apparatus is set for operation in the shutter speed preselection exposure range, the shutter speed preselecting dial is incapable of being set to its automatic adjustment position. When set for operation in the diaphragm aperture preselection exposure range, the diaphragm aperture preselecting dial is incapable of being set to its automatic adjustment positon.

10. 发明授权

US4245900A Electronic exposure control apparatus 失效
标题翻译：电子曝光控制装置
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式