公开(公告)号：US06208812B1

公开(公告)日：2001-03-27

申请号：US09082584

申请日：1998-05-21

申请人： Tokuji Sato ,  Hisashi Hamada ,  Shiro Hashimoto ,  Shigenori Goto ,  Tatsuo Saito ,  Hiroyuki Arai ,  Akio Omiya ,  Makoto Akiba

发明人： Tokuji Sato ,  Hisashi Hamada ,  Shiro Hashimoto ,  Shigenori Goto ,  Tatsuo Saito ,  Hiroyuki Arai ,  Akio Omiya ,  Makoto Akiba

IPC分类号： G03B700

CPC分类号： G03B19/04 ,  G03B7/24 ,  G03B2206/006

摘要： A camera has a bar code reader for reading a bar code from a roll film loaded therein. Bar code data read from the bar code is checked out whether it has a proper format or not. If the bar code data read from the bar code of the loaded roll film is proper, the bar code data is written in a nonvolatile memory, and the camera is set up in accordance with the bar code data. The bar code data of the nonvolatile memory is renewed each time proper bar code data is obtained. If the bar code data read from the bar code of the loaded roll film is improper, a display device displays film data represented by bar code data having been stored in the nonvolatile memory, along with an error indicia. If the displayed film data is invalid for the loaded roll film, the photographer enters film data of the loaded roll film through manual operation switches. Then, the camera is set up with the manually entered film data. If no film data is manually entered, the camera is set up in accordance with the displayed film data.

摘要翻译： 相机具有条形码读取器，用于从其中装载的卷膜读取条形码。 检查从条形码读取的条码数据是否具有正确的格式。 如果从加载的卷膜的条形码读取的条形码数据是适当的，则将条形码数据写入非易失性存储器，并且根据条形码数据建立相机。 每当获得适当的条形码数据时，更新非易失性存储器的条形码数据。 如果从加载的卷膜的条形码读取的条形码数据不正确，则显示装置显示已经存储在非易失性存储器中的条形码数据表示的胶片数据以及错误标记。 如果所显示的胶片数据对于所装载的卷膜无效，则摄影者通​​过手动操作开关来输入加载的卷膜的胶卷数据。 然后，使用手动输入的胶片数据设置相机。 如果手动输入胶卷数据，则根据显示的胶片数据设置相机。

公开(公告)号：US6052536A

公开(公告)日：2000-04-18

申请号：US249778

申请日：1999-02-16

申请人： Hiroyuki Arai ,  Makoto Akiba ,  Tatsuo Saito ,  Akio Omiya ,  Hisashi Hamada ,  Tokuji Sato

发明人： Hiroyuki Arai ,  Makoto Akiba ,  Tatsuo Saito ,  Akio Omiya ,  Hisashi Hamada ,  Tokuji Sato

IPC分类号： G03B7/08 ,  G03B11/04 ,  G03B17/00 ,  G03B17/24

CPC分类号： G03B17/00 ,  G03B11/041 ,  G03B7/09908

摘要： In a camera wherein a lens cap is detachably attached there are provided first and second photometric sensors on a lens barrel and the camera main frame, respectively. It is detected in accordance with the photometric values by the first and second photometric sensors whether the lens cap is mounted. According to the camera, it is possible to detect with great accuracy whether the lens cap is mounted, with a standard type lens cap.

摘要翻译： 在其中可拆卸地安装透镜盖的相机中，分别在镜筒和相机主框上分别设置第一和第二测光传感器。 根据第一和第二测光传感器的光度值来检测透镜盖是否被安装。 根据相机，可以用标准型透镜盖高精度地检测镜头盖是否安装。

公开(公告)号：US6061527A

公开(公告)日：2000-05-09

申请号：US275871

申请日：1999-03-25

申请人： Hiroyuki Arai ,  Tatsuo Saito ,  Makoto Akiba ,  Minoru Takahashi

发明人： Hiroyuki Arai ,  Tatsuo Saito ,  Makoto Akiba ,  Minoru Takahashi

IPC分类号： G03B15/05

CPC分类号： G03B15/05 ,  G03B2215/05

摘要： A D/A converter performs a D/A conversion on digital light quantity indication data outputted from a CPU to generate an analog light quantity indication signal. The analog light quantity indication signal thus generated is supplied to both a power supply circuit and a light quantity control circuit comprising a photometric sensor, an integration circuit, and a comparison circuit. The light quantity control circuit outputs to a flash light emission circuit a light emission stop signal at the time point when the integrated quantity of light reaches a threshold according to the light quantity indication signal.

摘要翻译： D / A转换器对从CPU输出的数字光量指示数据执行D / A转换，以产生模拟光量指示信号。 由此产生的模拟光量指示信号被提供给包括光度传感器，积分电路和比较电路的电源电路和光量控制电路。 光量控制电路根据光量指示信号向闪光发光电路输出在光的总量达到阈值的时刻的发光停止信号。

公开(公告)号：US20060163454A1

公开(公告)日：2006-07-27

申请号：US11090162

申请日：2005-03-28

申请人： Makoto Akiba ,  Mikio Fujiwara

发明人： Makoto Akiba ,  Mikio Fujiwara

IPC分类号： H01J40/14

CPC分类号： H01L31/107 ,  H01L27/1446 ,  H01L31/028 ,  H04N5/3745 ,  Y02E10/547

摘要： A low-level light detector includes an avalanche photodiode (APD) to which is applied a bias voltage adjusted to produce a multiplication factor of not more than 30, and a capacitor for accumulating carriers produced by light in the APD and multiplied using the APD characteristics, the capacitor being connected to the avalanche photodiode. The detector detects the intensity of light impinging on the avalanche photodiode by periodically reading the capacitor voltage and obtaining time-based differences in the voltage, or by resetting the capacitor voltage to a predetermined voltage each time the capacitor voltage is read.

公开(公告)号：US20050035274A1

公开(公告)日：2005-02-17

申请号：US10883988

申请日：2004-07-06

申请人： Mikio Fujiwara ,  Masahide Sasaki ,  Makoto Akiba

发明人： Mikio Fujiwara ,  Masahide Sasaki ,  Makoto Akiba

IPC分类号： G01J1/44 ,  G01J1/42 ,  H01L31/00 ,  H01L31/10 ,  H04B10/2507 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04B10/67 ,  H04B10/69

CPC分类号： H01L31/0203 ,  G01J1/44 ,  H01L2224/45015 ,  H01L2224/45144 ,  H01L2924/00011 ,  H01L2924/20752 ,  H01L2924/00 ,  H01L2924/01005 ,  H01L2924/01033

摘要： This invention provides a photodetector for weak light and a weak light detection system including the photodetector for weak light the photodetector for weak light is comprised of a substrate on which an integrating read circuit including a PIN photodiode or an APD and an FET is mounted, wherein the entire assembly is mounted while separating the substrate from a ground potential without grounding the substrate, such a photodetector for weak light can reduce noise and ensure a high enough sensitivity enough to be able to discriminate the number of photons.

摘要翻译： 本发明提供一种弱光用光检测器和弱光检测系统，其包括用于弱光的光检测器，用于弱光的光检测器由其上安装有包含PIN光电二极管或APD和FET的积分读电路的基板组成，其中 整个组件安装在将基板与接地电位分离而不使基板接地的情况下，这种用于弱光的光检测器可以降低噪声并确保足够高的足够的灵敏度以能够区分光子的数量。

公开(公告)号：US06334718B1

公开(公告)日：2002-01-01

申请号：US09585270

申请日：2000-06-02

申请人： Makoto Akiba ,  Kazuaki Nagata

发明人： Makoto Akiba ,  Kazuaki Nagata

IPC分类号： G03B1700

CPC分类号： G03B17/04

摘要： A camera is provided with a lens barrier for covering and uncovering an opening which is formed in a front face of the camera and is for exposing a taking lens. The lens barrier protects the taking lens when the camera is not used. The lens barrier is driven by a motor. This motor is controlled by a motor control unit relative to its rotational direction (forward and backward direction), its rotational amount and its rotational speed. As the motor, a DC motor is used. Into this DC motor, drive-pulse trains having different duty factor are inputted to control the rotational speed. Owing to this, an operation speed of the lens barrier is controlled so as to be faster when the lens barrier opens the opening, and so as to be slower when the lens barrier closes the opening.

摘要翻译： 相机设置有透镜屏障，用于覆盖和露出形成在相机的前表面中并用于曝光拍摄镜头的开口。 当相机不使用时，透镜屏障保护拍摄镜头。 透镜屏障由电机驱动。 该电动机由电动机控制单元相对于其旋转方向（前后方向），其旋转量和转速控制。 作为电动机，使用直流电动机。 在该DC电动机中，输入具有不同占空因数的驱动脉冲串来控制转速。 由此，透镜屏障的操作速度被控制为当透镜屏障打开开口时更快，并且当透镜屏障闭合开口时变得更慢。

公开(公告)号：US20090095883A1

公开(公告)日：2009-04-16

申请号：US12314614

申请日：2008-12-12

申请人： Makoto Akiba

发明人： Makoto Akiba

IPC分类号： H01L31/00

CPC分类号： H04N5/357

摘要： The photo-detecting device includes a photodetector for detecting incident light, an input J FET for reading the sensing signal from the photodetector, an amplifier for amplifying the signal detected by the input J FET, a feed-back circuit for feeding the output of the amplifier back to the gate of the input J FET through a feed-back capacitor, a reset circuit for resetting the feed-back capacitor by discharging it with a reset MOS FET, and a circuit of a switch and resistor. The same level voltage as the gate voltage of the input J FET is applied to its source through a resistor, and the circuit of the switch and the resistor is connected between the source of the reset MOS FET and the feed-back capacitor. The reset MOS FET and switch are controlled so that the reset MOS FET is turned “on” and “off” while the switch is “on”.

公开(公告)号：US20070115568A1

公开(公告)日：2007-05-24

申请号：US11601688

申请日：2006-11-20

申请人： Makoto Akiba ,  Hideo Yoshida

发明人： Makoto Akiba ,  Hideo Yoshida

IPC分类号： G02B7/02

CPC分类号： G03B3/02 ,  G02B7/08 ,  G03B13/36 ,  H02N2/025 ,  H02N2/062

摘要： A driving control device 20 controls supply of driving pulses to expand and contract a piezoelectric element 12 so that an expansion rate is different from a contraction rate, to vibrate a driving rod 17 and move a lens 21 frictionally engaging with the driving rod 17 in two directions. The driving control device 20 includes an actual driving pulse number measuring unit 32 that measures actual driving pulse numbers, which are required to move the lens 21 by a predetermined movement amount in the two directions, before a focusing operation of the lens 21, a correction factor calculating unit 33 that calculates correction factors relating to a driving pulse number, based on the actual driving pulse numbers and a predetermined reference pulse number; and a driving pulse number correcting unit 34 that corrects a driving pulse number supplied to the piezoelectric element 12 based on the correction factors.

公开(公告)号：US07135669B2

公开(公告)日：2006-11-14

申请号：US11090162

申请日：2005-03-28

申请人： Makoto Akiba ,  Mikio Fujiwara

发明人： Makoto Akiba ,  Mikio Fujiwara

IPC分类号： H03F3/08 ,  H03K3/42

CPC分类号： H01L31/107 ,  H01L27/1446 ,  H01L31/028 ,  H04N5/3745 ,  Y02E10/547

摘要： A low-level light detector includes an avalanche photodiode (APD) to which is applied a bias voltage adjusted to produce a multiplication factor of not more than 30, and a capacitor for accumulating carriers produced by light in the APD and multiplied using the APD characteristics, the capacitor being connected to the avalanche photodiode. The detector detects the intensity of light impinging on the avalanche photodiode by periodically reading the capacitor voltage and obtaining time-based differences in the voltage, or by resetting the capacitor voltage to a predetermined voltage each time the capacitor voltage is read.

摘要翻译： 低电平光检测器包括雪崩光电二极管（APD），施加了被调整以产生不大于30的乘法因子的偏置电压，以及用于累积由APD中的光产生并由APD特性乘以的载流子的电容器 电容器连接到雪崩光电二极管。 检测器通过周期性地读取电容器电压并获得基于时间的电压差异，或者每当读取电容器电压时，将电容器电压复位到预定电压，来检测入射在雪崩光电二极管上的光的强度。

公开(公告)号：US07115868B2

公开(公告)日：2006-10-03

申请号：US10883990

申请日：2004-07-06

申请人： Mikio Fujiwara ,  Masahide Sasaki ,  Makoto Akiba

发明人： Mikio Fujiwara ,  Masahide Sasaki ,  Makoto Akiba

IPC分类号： G01J5/20

CPC分类号： G01J1/04 ,  G01J1/0252 ,  G01J1/0295 ,  G01J1/42 ,  G01J1/46 ,  G01J2001/442

摘要： The present invention provides a photodetector for weak light that can prevent noise from impurities, prevent electrodes from disconnecting from the substrate, and can be easily cooled; the present invention further provides a photodetector for weak light that can count the number of photons; the present invention solves the above problems by using an ultraviolet light transparent substrate on the photodetector for weak light.

摘要翻译： 本发明提供一种能够防止杂质产生噪声的弱光检测器，防止电极与基板断开，容易冷却; 本发明还提供一种能够对光子数进行计数的弱光检测器; 本发明通过在用于弱光的光检测器上使用紫外光透明基板来解决上述问题。