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    • 32. 发明授权
    • Rangefinder apparatus
    • 测距仪
    • US06583861B2
    • 2003-06-24
    • US09764440
    • 2001-01-19
    • Yasuhiro MiwaTatsuo Saito
    • Yasuhiro MiwaTatsuo Saito
    • G01C300
    • G01C3/08G02B7/32
    • In a rangefinder apparatus for projecting a light beam toward a target object a number of times; detecting light of the light beam reflected from the target object, and successively integrating output signals corresponding to the distance to the target object to carry out rangefinding; a voltage of an integrating capacitor in a rangefinding routine is detected, and the rangefinding routine is forcibly terminated if the voltage of the integrating capacitor is out of a preset range. Since the rangefinding routine is forcibly terminated if the voltage of the integrating capacitor in the rangefinding routine is outside of the preset range, malfunctions of a signal processing IC can be detected.
    • 在用于将光束投射到目标物体的测距装置中多次; 检测从目标物体反射的光束的光,并且将与距离对应的输出信号依次积分到目标物体上进行测距; 检测测距程序中的积分电容器的电压,并且如果积分电容器的电压超出预设范围,则强制终止测距程序。 如果测距程序中的积分电容器的电压超出预设范围,则由于测距程序被强制终止,所以可以检测到信号处理IC的故障。
    • 36. 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。
    • 37. 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。
    • 40. 发明授权
    • Lens apparatus
    • 镜头设备
    • US08301023B2
    • 2012-10-30
    • US12977787
    • 2010-12-23
    • Tatsuo SaitoTadayoshi Edamoto
    • Tatsuo SaitoTadayoshi Edamoto
    • G03B17/00
    • G03B3/10G03B13/34
    • The lens apparatus according to an aspect of the present invention includes: a focus lens which is driven for bringing a desired subject into focus; a zoom lens which is driven for changing a focal length; and a diaphragm having an aperture diameter which is changed for adjusting an amount of photography light, and the lens apparatus is configured to adjust a position of the focus lens, to thereby perform flange back distance adjustment. In such a lens apparatus, the aperture diameter of the diaphragm is changed at a time of mode transition between a photography mode in which a normal photographing operation is possible and an adjustment mode in which the flange back distance adjustment is possible. Accordingly, the user can instantly know whether or not the lens apparatus is in the flange back distance adjustment mode, only by checking a video picture photographed by a television camera.
    • 根据本发明的一个方面的透镜装置包括:被驱动以使期望的被摄体聚焦的聚焦透镜; 用于改变焦距的变焦镜头; 以及具有用于调节拍摄光量的孔径直径的光阑,并且透镜装置被配置为调节聚焦透镜的位置,从而执行凸缘返回距离调节。 在这样的透镜装置中,在能够进行正常拍摄操作的拍摄模式和可以进行凸缘后退距离调整的调节模式之间,模式转换时,光阑的孔径直径变化。 因此,只有通过检查由电视摄像机拍摄的视频图像,用户才能立即知道透镜装置是否处于凸缘后方距离调节模式。