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    • 2. 发明授权
    • Stabilized range finder for use with an electronically controlled camera
    • 用于电子照相机的稳定测距仪
    • US5148211A
    • 1992-09-15
    • US600821
    • 1990-10-22
    • Takaaki KotaniSeiji TakadaShigenori GotoTatsuo Saito
    • Takaaki KotaniSeiji TakadaShigenori GotoTatsuo Saito
    • G01S11/12G01S17/46
    • G01S17/46G01S11/12G01S7/4814
    • A range finding device having a plurality of LEDs for projecting toward a scene to be photographed a plurality of spot beams of light disposed in a horizontal line, and a PSD for receiving light reflected from the object. Two channel signals from the PSD are amplified by gain control amplifiers and converted into digital signals. The two channel digital signals are obtained for each LED, and the ratio between the two digital signals is used for calculating a distance datum. Of a plurality of distance data obtained for respective LEDs, an optimum one is selected. For the calculation of a distance datum, there is used a microcomputer which controls an image taking sequence. The gain of the gain control amplifier is automatically adjusted by the measured data obtained in accordance with pulsed light emitted during the initial period of driving the LED. Digital signals obtained prior to the light emission of the LED are used for calculating an offset correction value. Each LED emits a pulsed light beam at a predetermined interval. An average value of digital signals for the pulsed light beams is used for calculating a distance datum. Several pulsed light beams during the initial period are not used for range finding or gain control. If the gain of the gain control amplifier is not proper, the range finding is interrupted and a distance datum specific to the then-existing gain value is used.
    • 一种测距装置,具有多个LED,用于朝向要拍摄的场景投射多个设置在水平线上的点光束;以及PSD,用于接收从物体反射的光。 来自PSD的两通道信号由增益控制放大器放大并转换为数字信号。 对于每个LED获得双通道数字信号,并且使用两个数字信号之间的比率来计算距离数据。 在针对各个LED获得的多个距离数据中,选择最佳的距离数据。 对于距离数据的计算,使用控制图像拍摄序列的微型计算机。 增益控制放大器的增益通过根据在驱动LED的初始周期期间发射的脉冲光获得的测量数据自动调整。 在LED的发光之前获得的数字信号用于计算偏移校正值。 每个LED以预定间隔发射脉冲光束。 用于脉冲光束的数字信号的平均值用于计算距离基准。 初始阶段的几个脉冲光束不用于测距或增益控制。 如果增益控制放大器的增益不正确,则范围查找被中断,并且使用与当时存在的增益值特定的距离数据。
    • 3. 发明授权
    • Method and apparatus for rangefinding
    • 测距方法和装置
    • US5386263A
    • 1995-01-31
    • US157436
    • 1993-11-26
    • Takaaki KotaniSeiji TakadaShigenori GotoTatsuo Saito
    • Takaaki KotaniSeiji TakadaShigenori GotoTatsuo Saito
    • G02B7/32G03B3/00G03B13/18
    • G02B7/32
    • A multi-beam type rangefinding method and device uses three LEDs arranged along a line perpendicular to a base line, and a PSD for receiving light reflected from three measurement regions of a photographic scene. In the gain determining procedure, a selected LED emits light at least once. In the rangefinding procedure, it emits light a plurality of times. Light reflected from an object is received by the PSD which outputs two channel signals. The two channel signals are amplified by two gain control amplifiers which are adjusted to have the same gain. The gain is adjusted to be an optimum value for the two channel output signal levels. Upon changing the gain, light projection by a selected LED is stopped until the output of each gain control amplifier becomes stable. If one of the two channel output signals saturates during the rangefinding procedure, the light projection/measurement is repeated at the same gain after a lapse of predetermined delay time. If the number of times when the output signal saturates becomes a predetermined number during the rangefinding procedure, the rangefinding procedure is recommenced.
    • 多光束型测距方法和装置使用沿着垂直于基线的线布置的三个LED和用于接收从摄影场景的三个测量区域反射的光的PSD。 在增益确定过程中,所选择的LED至少发光一次。 在测距过程中,多次发光。 从物体反射的光被PSD接收,PSD输出两个通道信号。 两个通道信号由被调整为具有相同增益的两个增益控制放大器放大。 增益被调整为两通道输出信号电平的最佳值。 在改变增益时,所选择的LED的光投影停止,直到每个增益控制放大器的输出稳定。 如果两个通道输出信号之一在测距过程中饱和,则在经过预定的延迟时间之后,以相同的增益重复光投射/测量。 如果在测距过程期间输出信号饱和的次数变为预定数,则重新开始测距过程。
    • 5. 发明授权
    • Camera with setting/film feed switch
    • 相机带设置/胶片供纸开关
    • US5758214A
    • 1998-05-26
    • US674576
    • 1996-06-28
    • Tatsuo SaitoShigenori Goto
    • Tatsuo SaitoShigenori Goto
    • G03B7/00G03B17/00G03B17/02
    • G03B17/00
    • An UP/DOWN dial is used with at least one of switches including a back cover switch detecting whether the cover switch of the camera is opened or closed, so as to also serve as a switch for driving a feed motor by the manual operation. As a result, the number of switches can be reduced. That is, the switch for driving the feed motor by the manual operation is used only when the film is set in the camera (only when the back cover opens). Therefore, if the cover switch detects that the back cover opens, the UP/DOWN dial is operated regardless of the currently-set mode, so that the feed motor can be driven.
    • UP / DOWN拨盘与至少一个开关一起使用,其中包括检测相机的盖开关是否打开或关闭的后盖开关,以及用作通过手动操作驱动进给电机的开关。 结果,可以减少开关的数量。 也就是说,通过手动操作来驱动进给电动机的开关仅在胶片被设置在相机中时才使用(仅当后盖打开时)。 因此,如果盖开关检测到后盖打开,则无论当前设置的模式如何,UP / DOWN拨盘都将被操作,从而可以驱动进给电机。
    • 6. 发明授权
    • Camera with bar code reader
    • 相机带条码阅读器
    • US06208812B1
    • 2001-03-27
    • US09082584
    • 1998-05-21
    • Tokuji SatoHisashi HamadaShiro HashimotoShigenori GotoTatsuo SaitoHiroyuki AraiAkio OmiyaMakoto Akiba
    • Tokuji SatoHisashi HamadaShiro HashimotoShigenori GotoTatsuo SaitoHiroyuki AraiAkio OmiyaMakoto Akiba
    • G03B700
    • G03B19/04G03B7/24G03B2206/006
    • 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.
    • 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。
    • 7. 发明授权
    • Auto-focus camera
    • 自动对焦摄像头
    • US5895130A
    • 1999-04-20
    • US672922
    • 1996-06-28
    • Tatsuo SaitoShigenori Goto
    • Tatsuo SaitoShigenori Goto
    • G02B7/28G03B7/08G03B13/36G03B3/10
    • G02B7/28G03B7/0807
    • An auto-focus camera performs a focusing and a photometry when a shutter button is half depressed in an auto-focus mode. In this case, when an MF button is depressed, a result value of the focusing is held as long as the MF button is depressed even if the shutter button is released. When the shutter button is depressed again, only the photometry is performed. On the other hand, when the MF button is depressed in a manual focus mode, an object distance can be set by an UP/DOWN dial which is also used for setting various kinds of photographing items. The MF button is used for maintaining an AF lock, and is used for instructing the setting of the object distance in the manual-focus mode.
    • 当自动对焦模式下半按下快门按钮时,自动对焦相机执行对焦和测光。 在这种情况下,当按下MF按钮时,即使按下快门按钮,只要按下MF按钮,就保持对焦的结果值。 再次按下快门按钮时,仅进行测光。 另一方面,当在手动对焦模式中按下MF按钮时,可以通过也用于设置各种拍摄项目的UP / DOWN拨盘来设置物体距离。 MF按钮用于保持AF锁定,并用于指示手动对焦模式下对象距离的设置。
    • 9. 发明授权
    • Camera
    • 相机
    • US5603067A
    • 1997-02-11
    • US355050
    • 1994-12-13
    • Shigenori GotoTatsuo SaitoShiro Hashimoto
    • Shigenori GotoTatsuo SaitoShiro Hashimoto
    • G03B17/00G03B1/50G03B17/02G03B17/18G03B17/28G03B17/36G03B7/00G03B17/26
    • G03B1/50G03B17/02G03B17/18
    • A camera is of a type using the 120 size of roll film or the 220 size of roll film, which is so arranged that the height of a pressure plate on a back lid is changed over depending upon a type of a used film. A reflection-type photosensor is provided in the camera body, whereby a state of a lock mechanism of the back lid is detected. A second reflective plate is mounted on the pressure plate, and the second reflective plate reflects light from the photosensor when the back lid is in a lock state. A reflecting position where the light from the photosensor impinges is changed between reflective portions depending upon the height of the pressure plate. Since reflectivities of these reflective portions are different from each other, the height of the pressure plate, that is, the type of the used film can be determined by analyzing an output from the photosensor receiving the reflected light from the second reflective plate.
    • 相机是使用120尺寸的卷膜或220尺寸的卷膜的类型,其布置成使得背盖上的压板的高度根据所使用的膜的类型而改变。 在相机机体中设置反射型光电传感器,由此检测后盖的锁定机构的状态。 第二反射板安装在压板上,当后盖处于锁定状态时,第二反射板反射来自光电传感器的光。 来自光传感器的光的反射位置根据压板的高度在反射部之间变化。 由于这些反射部分的反射率彼此不同,因此可以通过分析接收来自第二反射板的反射光的光电传感器的输出来确定压板的高度,即所用膜的类型。
    • 10. 发明授权
    • Apparatus for measuring a distance
    • 用于测量距离的装置
    • US5589910A
    • 1996-12-31
    • US357431
    • 1994-12-14
    • Tatsuo SaitoShigenori Goto
    • Tatsuo SaitoShigenori Goto
    • G02B7/28G03B7/099G03B13/36
    • G02B7/285G03B7/09979
    • A distance measuring apparatus according to the present invention comprises two types of distance measuring units, which are a first distance measuring unit of the active method for receiving reflected light of measuring light returning from an object and performing distance measurement based on a focused position thereof, and a second distance measuring unit of the passive method for receiving the natural light reflected by the object through two optical systems and performing the distance measurement based on two optical images thus obtained. The apparatus further has a luminance determining unit for determining a luminance of the external field from a photometry result, and a distance selecting device for selecting and outputting either one of distance measurement results obtained by the first distance measuring unit and second distance measuring unit as a proper distance value, based on the luminance of the external field determined by the luminance determining unit. This distance selecting device may be so arranged that the luminance of external field obtained by the luminance determining unit is determined in two levels of high level and low level. Then it selects the distance measurement result of the first distance measuring unit when the luminance of external field is determined as a low level or selects the distance measurement result of the second distance measuring unit when the luminance of external field is determined as a high level.
    • 根据本发明的距离测量装置包括两种距离测量单元,它们是用于接收从物体返回的测量光的反射光的主动方法的第一距离测量单元,并且基于其聚焦位置进行距离测量, 以及第二距离测量单元,用于通过两个光学系统接收由物体反射的自然光,并且基于由此获得的两个光学图像执行距离测量。 该装置还具有用于从测光结果确定外场亮度的亮度确定单元和用于选择并输出由第一距离测量单元和第二距离测量单元获得的距离测量结果中的任一个的距离选择设备,作为 基于由亮度确定单元确定的外部场的亮度的适当的距离值。 该距离选择装置可以被布置成使得由亮度确定单元获得的外部场的亮度在高电平和低电平的两个级别中确定。 然后,当外部亮度的亮度被确定为低电平时,选择第一距离测量单元的距离测量结果,或者当外部亮度的亮度被确定为高电平时,选择第二距离测量单元的距离测量结果。