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121. 发明授权

US4080610A Exposure-time control system having a closed-loop circuit arrangement for providing a timing control signal 失效
标题翻译：曝光时间控制系统具有用于提供定时控制信号的闭环电路装置
公开(公告)号：US4080610A
公开(公告)日：1978-03-21
申请号：US683846
申请日：1976-05-06
申请人： Yukiyasu Nishikawa , Takuo Itagaki
发明人： Yukiyasu Nishikawa , Takuo Itagaki
IPC分类号： G03B7/093 , G03B7/083 , G03B17/18 , G03B7/08
CPC分类号： G03B7/083 , G03B17/18
摘要： A closed-loop circuit arrangement sequentially operates in a tracking mode before the shutter of a single lens reflex camera is actuated, and then in a holding mode after the shutter is actuated. The circuit arrangement receives from a conventional photoelectric circuit a first analog signal that instantaneously represents exposure time so long as light entering the camera impinges on the photoelectric circuit. A register in the circuit arrangement provides a digital multi-bit signal that is converted to a second analog signal. The first and second analog signals are compared to produce an error signal used during the tracking mode in controlling the register so that the digital multi-bit signal varies until the first and second analog signals represent the same exposure time. After the shutter is actuated, the register serves as a memory thereby causing the second analog signal to statically represent exposure time.
摘要翻译：在单镜头反光相机的快门被致动之前，然后在快门被致动之后处于保持模式下，闭环电路装置依次以跟踪模式操作。只要入射到相机的光照射在光电路上，电路装置从传统的光电路接收瞬时表示曝光时间的第一模拟信号。电路装置中的寄存器提供转换成第二模拟信号的数字多位信号。对第一和第二模拟信号进行比较，以产生在跟踪模式期间用于控制寄存器的误差信号，使得数字多位信号变化，直到第一和第二模拟信号表示相同的曝光时间。在快门被激活之后，寄存器用作存储器，从而使得第二模拟信号静态地表示曝光时间。

122. 发明授权

US4070682A Exposure time control circuit 失效
标题翻译：曝光时间控制电路
公开(公告)号：US4070682A
公开(公告)日：1978-01-24
申请号：US701076
申请日：1976-06-30
申请人： Saburo Numata , Shinichiro Fujino
发明人： Saburo Numata , Shinichiro Fujino
IPC分类号： G03B7/089 , G03B7/083 , G03B7/02
CPC分类号： G03B7/083
摘要： An exposure time control circuit for a camera includes a level selecting circuit between a light measuring circuit and a memory circuit to have a selected output memorized in the memory circuit. The level selecting circuit is provided with two inputs, one of which is the output of the light measuring circuit indicative of the scene brightness and the other of which is the output of a maximum exposure time output source indicative of the maximum exposure time acceptable to the camera. The memory circuit memorizes the output selected by the level selecting circuit which output indicates a shorter exposure time between the two.
摘要翻译：照相机的曝光时间控制电路包括在光测量电路和存储器电路之间的电平选择电路，以使存储在存储器电路中的选择输出。电平选择电路设置有两个输入，其中一个是指示场景亮度的光测量电路的输出，另一个是指示最大曝光时间输出源的输出，表示最大曝光时间可接受的曝光时间相机。存储电路存储由电平选择电路选择的输出，该输出指示两者之间的较短的曝光时间。

123. 发明授权

US4065777A Photometric apparatus for single lens reflex camera 失效
标题翻译：单镜反光相机光度测量仪
公开(公告)号：US4065777A
公开(公告)日：1977-12-27
申请号：US717089
申请日：1976-08-24
申请人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
IPC分类号： G03B7/083 , G03B7/099 , G03B7/08
CPC分类号： G03B7/083 , G03B7/09974
摘要： A photometric apparatus for single lens reflex camera and of the type in which an exposure value is determined by photometry of light which is transmitted through a photographic optical system and is reflected by at least one of the surfaces of a shutter blind and a film, said apparatus comprising a photoelectric transducer element for receiving light reflected by at least one of the surfaces of a shutter blind and a film, and an operational amplifier for biasing the photoelectric transducer element to maintain the voltage applied thereacross substantially null, thereby enabling a photometric output of the photoelectric transducer element to be effectively derived even when the amount of light received is minimal. The shutter blind is provided with a surface upon which at least two portions thereof have different coefficients of reflectivity to reduce adverse effects of reflected light upon the desired exposure period.
摘要翻译：一种用于单镜头反光照相机的测光装置，其中曝光值由通过照相光学系统透射并由快门帘和薄膜的至少一个表面反射的光的测光确定的类型，所述光测量装置该装置包括用于接收由快门遮罩和薄膜的至少一个表面反射的光的光电换能器元件和用于偏置光电换能器元件的运算放大器，以保持其上施加的电压基本上为零，从而使得能够进行光度输出即使当接收到的光量很小时，光电传感器元件也被有效地导出。百叶窗具有表面，在该表面上，其至少两部分具有不同的反射系数，以减少反射光对所需曝光周期的不利影响。

124. 发明授权

US4062024A Control system consisting of semi-conductor integrated circuits for a camera 失效
标题翻译：由相机的半导体集成电路组成的控制系统
公开(公告)号：US4062024A
公开(公告)日：1977-12-06
申请号：US618125
申请日：1975-09-30
申请人： Tokuichi Tsunekawa , Masanori Uchidoi , Masami Shimizu , Masayoshi Yamamichi , Keiya Murayama , Hiroshi Aizawa
发明人： Tokuichi Tsunekawa , Masanori Uchidoi , Masami Shimizu , Masayoshi Yamamichi , Keiya Murayama , Hiroshi Aizawa
IPC分类号： G03B17/18 , G03B7/083 , G03B7/30 , H01L21/8234 , H01L27/06 , G03B7/00
CPC分类号： G03B7/083 , G03B7/0807
摘要： The present invention relates to a control system consisting of a semi-conductor integrated circuit for a camera, particularly a control system from providing secure operation as well as a reduction of complexity. The system provides for separation of actuating signals from the low level signals for the integrated circuit so as to prevent added noise of the actuating signals from mixing with the low level signal.
摘要翻译：本发明涉及一种由相机的半导体集成电路组成的控制系统，特别是提供安全操作的控制系统以及复杂性的降低。该系统用于将致动信号与用于集成电路的低电平信号分离，以防止致动信号的附加噪声与低电平信号混合。

125. 发明授权

US4020433A Release type electromagnetic device 失效
标题翻译：释放型电磁装置
公开(公告)号：US4020433A
公开(公告)日：1977-04-26
申请号：US539048
申请日：1975-01-07
申请人： Masanori Uchidoi , Hideaki Miyakawa , Tetsuya Taguchi , Yukio Mashimo , Satoshi Watanabe
发明人： Masanori Uchidoi , Hideaki Miyakawa , Tetsuya Taguchi , Yukio Mashimo , Satoshi Watanabe
IPC分类号： G03B9/62 , G03B7/083 , G05D3/00 , H01F7/06 , H01F7/122 , H01F7/16 , H02K33/00 , H01F7/08
CPC分类号： G03B7/083 , H01F7/064 , H01F7/1646 , H01F2007/1692 , H01F7/122
摘要： The device includes a permanent magnet for attracting a movable iron armature. A pair of elongated rectilinear magnetic bodies have planar pole faces at one end facing the iron armature, and the permanent magnet is sandwiched between these two magnetic members intermediate their ends, with the permanent magnet extending perpendicularly to the magnetic members. Respective magnetizing windings embrace each magnetic member between the permanent magnet and the pole faces of the members, to produce a magnetic flux in the magnetic members opposing the flux provided by the permanent magnet so as to release the iron armature. In one embodiment of the invention, the other ends of the members, projecting beyond the permanent magnet, are angled to face each other to provide an air gap therebetween. In a second embodiment of the invention, the magnetic members or yokes have respective second windings thereon, beyond the permanent magnet, and the ends of these yokes, beyond the second windings, are formed with planar pole faces for operative association with a second iron armature. Both iron armatures are spring biased to disengage the magnetic yokes or members. As the permanent magnet engages the yokes intermediate their ends, the magnetic flux path due to the magnetizing windings does not include the permanent magnet and therefore an effective armature releasing magnetic flux can be provided with only a relatively small current supplied to the magnetizing windings.
摘要翻译：该装置包括用于吸引可动铁衔铁的永磁体。一对细长直线磁体在与铁电枢相对的一端具有平面的极面，并且永磁体被夹在这两个磁性部件之间的中间，永磁体垂直于磁性部件延伸。各个磁化绕组包括永磁体和构件的极面之间的每个磁性构件，以在磁性构件中产生与由永磁体提供的磁通相对的磁通量，以便释放铁衔铁。在本发明的一个实施例中，突出超过永磁体的构件的另一端成角度以彼此面对以在它们之间提供气隙。在本发明的第二实施例中，磁性构件或轭在其上具有超过永磁体的相应的第二绕组，并且这些磁轭的超过第二绕组的端部形成有平面极面，用于与第二铁衔铁。两个铁电枢都被弹簧偏压以使磁轭或构件脱离。由于永磁体在其端部之间接合轭铁，所以由于磁化绕组而导致的磁通路径不包括永久磁铁，因此可以仅提供给磁化绕组的相对较小的电流提供有效的电枢释放磁通量。

126. 发明授权

US3988750A Exposure time indicating device for camera shutter 失效
标题翻译：照相机快门的曝光时间指示装置
公开(公告)号：US3988750A
公开(公告)日：1976-10-26
申请号：US577079
申请日：1975-05-13
申请人： Takeo Saito
发明人： Takeo Saito
IPC分类号： G03B7/083 , G03B9/58 , G03B7/08
CPC分类号： G03B7/083 , G03B9/58
摘要： An exposure time indicating apparatus for a camera shutter having a switching circuit that has a switching level which is compensated for the brightness of an object or field of exposure. The apparatus includes an indicating circuit that indicates the exposure time. The signal developed to indicate the exposure time takes into consideration exposure factors other then the delay for variaions in brightness, for control of exposure time. This other factor is introduced by camera adjustments which effect automatically adjustment of a variable resistor as a function of the exposure factor being adjusted and this resistor varies a bias voltage on a transistor of a differential amplifier for varying the output thereof to apply a variation to a switching circuit controlling the shutter to change its switching level and the switching signal closing the shutter. This varied and time-delayed signal is visually indicated in a meter as the actual exposure time before the taking of an exposure.
摘要翻译：一种具有开关电路的照相机快门的曝光时间指示装置，该切换电路的开关电平被补偿对象或曝光场的亮度。该装置包括指示曝光时间的指示电路。开发以指示曝光时间的信号考虑了除了亮度变化的延迟之外的曝光因子，以控制曝光时间。这个另一个因素是通过照相机调整来引入的，其随着调整曝光因子的作用而自动调节可变电阻器，并且该电阻改变差分放大器的晶体管上的偏置电压，以改变其输出以将变化应用于切换电路控制快门以改变其开关电平和切换信号关闭快门。这种变化和时间延迟的信号在仪表中被视觉地表示为在曝光之前的实际曝光时间。

127. 发明授权

US3980908A Exposure control system 失效
标题翻译：曝光控制系统
公开(公告)号：US3980908A
公开(公告)日：1976-09-14
申请号：US592112
申请日：1975-07-01
申请人： Richard D. McClintock
发明人： Richard D. McClintock
IPC分类号： G03B7/083 , H01F7/122 , H01F7/14 , H01F7/16 , H02K35/02 , H02K39/00
CPC分类号： H01F7/14 , G03B7/083 , H01F7/1615 , H02K35/02 , H02K39/00 , H01F7/122
摘要： A system for controlling the closing of a camera shutter includes photosensitive means for detecting the available light level in the field of view of the camera to provide an output control signal a predetermined time after initiation of shutter closure dependent on the detected available light level. The power supply for the system includes a bidirectional linear magnetic generator which includes a spring drive which is mechanically loaded and unloaded by the film advance mechanism of the camera to power the exposure control circuitry. A solenoid, such as a rotary solenoid or linear solenoid magnetically latches the shutter in the open position during exposure until the solenoid coil is energized at the completion of the required exposure time to neutralize the magnetic flux in the magnetic stator of the solenoid, overcoming the magnetic latch and, due to a spring, thereafter biasing the armature to a second position which, through the mechanical linkage of the camera, closes the shutter.
摘要翻译：用于控制相机快门关闭的系统包括用于检测相机视野中的可用光级别的光敏装置，以根据检测到的可用光级别在快门关闭开始之后的预定时间提供输出控制信号。该系统的电源包括双向线性磁性发生器，其包括弹簧驱动器，其通过照相机的膜前进机构机械地装载和卸载以为曝光控制电路供电。螺线管，例如旋转螺线管或线性螺线管在曝光期间将闸门磁化地锁定在打开位置，直到螺线管线圈在所需的曝光时间完成时通电，以中和螺线管的磁定子中的磁通量，克服磁性闩锁，并且由于弹簧，此后将电枢偏置到第二位置，该第二位置通过照相机的机械连杆关闭快门。

128. 发明授权

US3973266A Light measuring system of camera 失效
标题翻译：照相机测光系统
公开(公告)号：US3973266A
公开(公告)日：1976-08-03
申请号：US468983
申请日：1974-05-10
申请人： Masamichi Kakunodate , Soichi Nakamoto
发明人： Masamichi Kakunodate , Soichi Nakamoto
IPC分类号： G03B7/099 , G03B7/083 , G03B7/08 , G01J1/46
CPC分类号： G03B7/083
摘要： A camera shutter control device includesA light intensity to electric signal conversion means, which means further includes a first photosensitive means and a second and a third photosensitive means. The first means and the second and third means are designed in such a manner that they receive the light beams coming from a substantially different part of the object to be photographed and give electrical signals corresponding to the light quantity received.A memory means is included, which is electrically connected with the first and second conversion means and serves to memorize the difference between the signal outputs of both conversion means.An operation means, the inputs of which are connected with said memory means and the third conversion means so as to give the difference between the outputs of both means as the operation output, andA control means, which is connected with the operation means so as to control the time for opening the shutter in accordance with the output of the operation means are also included.
摘要翻译：照相机快门控制装置包括对电信号转换装置的光强度，其进一步包括第一感光装置和第二和第三感光装置。第一装置和第二和第三装置被设计成使得它们接收来自待拍摄对象的基本上不同部分的光束，并且给出对应于所接收的光量的电信号。

129. 发明授权

US3971047A Single lens reflex camera having an electric shutter 失效
标题翻译：具有电动快门的单镜头反光相机
公开(公告)号：US3971047A
公开(公告)日：1976-07-20
申请号：US467473
申请日：1974-05-06
申请人： Yasuo Isobe , Tadashi Ito , Fumio Ito
发明人： Yasuo Isobe , Tadashi Ito , Fumio Ito
IPC分类号： G03B7/083 , G03B7/08 , G03B9/62
CPC分类号： G03B7/083
摘要： In a single lens reflex camera, a lever responsive to operation of a shutter button initiates timing of an electronic shutter control a predetermined time interval before the shutter is actually opened. The predetermined time interval corresponds to the time elapse between the moment the shutter control changes the current which operates the magnet that holds the shutter open and the moment the magnet actually causes the shutter to close. After this predetermined time interval the shutter is opened, such as by running of the opening screen. After the measured shutter interval has ended, a current in the shutter control changes and operates on a magnet which has been holding the shutter open and causes the magnet to close the shutter, such as by releasing a closing screen.
摘要翻译：在单镜头反光相机中，响应于快门按钮的操作的控制杆在快门实际打开之前预定时间间隔开始电子快门控制的定时。预定时间间隔对应于快门控制改变操作保持快门打开的磁体的电流与磁体实际上使快门关闭的时刻之间的时间。在该预定时间间隔之后，例如通过打开屏幕的运行来打开快门。在测量的快门间隔结束之后，快门控制中的电流改变并且操作在已经保持快门打开的磁体上，并且例如通过释放关闭屏幕使磁体关闭快门。

130. 发明授权

US3968502A Electric shutter circuit 失效
标题翻译：电动快门电路
公开(公告)号：US3968502A
公开(公告)日：1976-07-06
申请号：US491174
申请日：1974-07-23
申请人： Kazuo Shiozawa , Junji Kajiwara
发明人： Kazuo Shiozawa , Junji Kajiwara
IPC分类号： G03B7/083 , G03B9/58 , G03B7/08
CPC分类号： G03B7/083 , G03B9/58
摘要： An electric shutter circuit is disclosed, which linearly varies the resistance in a bias electric power source for setting exposure factors for an automatic exposure control to thereby adjust the collector current of an electric current controlling transistor in a negative feedback circuit, and which even at the time of the manual exposure time setting, linearly varies the resistance in the bias electric power source for introducing exposure factor and setting the exposure time manually to adjust the collector current in an electric current controlling transistor in the negative feedback circuit. This circuit features that the collector current in an exposure time controlling transistor is equalized to the collector current in the electric-current controlling transistor, so that the trigger level in a comparator detector in a time constant circuit will be maintained constant.
摘要翻译：公开了一种电动快门电路，其线性地改变偏置电源中的电阻，用于设定用于自动曝光控制的曝光因子，从而调节负反馈电路中的电流控制晶体管的集电极电流，并且即使在手动曝光时间设置的时间线性地改变用于引入曝光因子的偏置电源中的电阻并且手动设置曝光时间以调节负反馈电路中的电流控制晶体管中的集电极电流。该电路的特征在于，曝光时间控制晶体管中的集电极电流与电流控制晶体管中的集电极电流相等，使得时间常数电路中的比较器检测器中的触发电平将保持恒定。

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