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公开(公告)号：US5159378A
公开(公告)日：1992-10-27
申请号：US599311
申请日：1990-10-17
申请人： Seiji Takada , Takaaki Kotani , Shigenori Goto , Tatsuo Saito
发明人： Seiji Takada , Takaaki Kotani , Shigenori Goto , Tatsuo Saito
IPC分类号： G02B7/32
CPC分类号： G02B7/32
摘要： A range finding device having a light projector and a light receiver. The light projector has a mirror for reflecting toward a subject near-infrared light emitted laterally from an IRED. The mirror has a reflection surface extending farther in a direction perpendicular to the base line direction than in the base line direction. According to the embodiment of this invention, for a light source unit, a base plate holding a plurality of IREDs is packaged in a transparent plastic package. The base plate is formed with arms extending out of the package. The light source unit is fixed on the camera body by the arms. The light receiver also uses a base plate with the similar arms.
摘要翻译： 具有投影仪和光接收器的测距装置。 光投射器具有用于向从IRED侧向发射的物体近红外光反射的反射镜。 反射镜具有在与基线方向垂直的方向上比在基线方向上更远的反射面。 根据本发明的实施例，对于光源单元，将多个IRED的基板封装在透明塑料封装中。 基板形成有从包装件伸出的臂。 光源单元通过臂固定在相机主体上。 光接收器还使用具有相似臂的底板。
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公开(公告)号：US5257060A
公开(公告)日：1993-10-26
申请号：US779881
申请日：1991-10-21
申请人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
发明人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
CPC分类号： G02B7/32
摘要： A CPU writes in a RAM various data obtained in a rangefinding procedure, e.g. offset values, gain values, data actually measured using a series of rangefinding LEDs, corresponding distance data obtained from each of the measurement data, and the optimum distance data used for setting a taking lens. When specifying an inspection mode, a microcomputer reads these written data out of the RAM to indicate them on an LCD numerically. Light emitting diode displays output the write data as light signals in intermittent light emission. To correct an error in the mounting position of the rangefinding LEDs, correction data are generated and written beforehand in an erasable ROM.
摘要翻译： CPU在RAM中写入在测距过程中获得的各种数据，例如。 偏移值，增益值，使用一系列测距LED实际测量的数据，从每个测量数据获得的相应距离数据和用于设置拍摄镜头的最佳距离数据。 当指定检查模式时，微型计算机从RAM中读取这些写入的数据，以数字方式在LCD上指示它们。 发光二极管显示器将写入数据作为间歇发光中的光信号输出。 为了校正测距LED的安装位置的错误，校正数据被预先生成并写入可擦除的ROM中。
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公开(公告)号：US5148211A
公开(公告)日：1992-09-15
申请号：US600821
申请日：1990-10-22
申请人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
发明人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
CPC分类号： G01S17/46 , G01S11/12 , G01S7/4814
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5386263A
公开(公告)日：1995-01-31
申请号：US157436
申请日：1993-11-26
申请人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
发明人： Takaaki Kotani , Seiji Takada , Shigenori Goto , Tatsuo Saito
CPC分类号： G02B7/32
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5832321A
公开(公告)日：1998-11-03
申请号：US671669
申请日：1996-06-28
申请人： Tatsuo Saito , Shigenori Goto
发明人： Tatsuo Saito , Shigenori Goto
摘要： In a camera of the present invention, when a shutter button is depressed half, a focusing and a photometry are executed. If the shutter button is held in a state of being depressed half, the results are retained. In this case, if an MF button is depressed, the photometry result is retained while the MF button 48 is being depressed, even if the shutter button is released. When the shutter button is depressed half again, only the photometry is performed.
摘要翻译： 在本发明的照相机中，当半按下快门按钮时，执行聚焦和测光。 如果快门按钮保持在半按下的状态，则保持结果。 在这种情况下，如果按下MF按钮，则即使按下快门按钮，MF按钮48被按下时也保持测光结果。 再次按下半按钮时，仅进行测光。
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公开(公告)号：US5784654A
公开(公告)日：1998-07-21
申请号：US703016
申请日：1996-08-26
申请人： Tatsuo Saito , Shigenori Goto
发明人： Tatsuo Saito , Shigenori Goto
CPC分类号： G02B7/285 , G03B7/09979
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5758214A
公开(公告)日：1998-05-26
申请号：US674576
申请日：1996-06-28
申请人： Tatsuo Saito , Shigenori Goto
发明人： Tatsuo Saito , Shigenori Goto
CPC分类号： G03B17/00
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5666568A
公开(公告)日：1997-09-09
申请号：US727005
申请日：1996-10-08
申请人： Tatsuo Saito , Shigenori Goto
发明人： Tatsuo Saito , Shigenori Goto
CPC分类号： G03B17/18 , G03B11/041 , G03B13/04 , G03B7/08
摘要： A lens cap in a camera is shaped so as to cover a distance measuring optical system when it is mounted on a taking lens. A photodiode array as a light receiving element for measurement of distance is utilized to obtain a luminance level of the light incident thereto, and it is compared with a luminance level obtained through a light receiving element for photometry. If a difference between the two luminance levels is large, a predetermined cap alarm process is carried out as determining that the lens cap is mounted on the taking lens. Thus, photography is surely prevented in a mounting state of the lens cap.
摘要翻译： 相机中的镜头盖被成形为当其安装在拍摄镜头上时覆盖距离测量光学系统。 利用作为测量距离的光接收元件的光电二极管阵列来获得入射到其的光的亮度级，并将其与通过用于光度测量的光接收元件获得的亮度水平进行比较。 如果两个亮度级之间的差异大，则在确定透镜盖安装在拍摄镜头上时执行预定的盖报警处理。 因此，在透镜盖的安装状态下可以确实地防止拍摄。
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公开(公告)号：US5603067A
公开(公告)日：1997-02-11
申请号：US355050
申请日：1994-12-13
申请人： Shigenori Goto , Tatsuo Saito , Shiro Hashimoto
发明人： Shigenori Goto , Tatsuo Saito , Shiro Hashimoto
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5589910A
公开(公告)日：1996-12-31
申请号：US357431
申请日：1994-12-14
申请人： Tatsuo Saito , Shigenori Goto
发明人： Tatsuo Saito , Shigenori Goto
CPC分类号： G02B7/285 , G03B7/09979
摘要： 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.
摘要翻译： 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。
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