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    • 6. 发明申请
    • Projector with auto focus device
    • 投影机带自动对焦装置
    • US20050099609A1
    • 2005-05-12
    • US10979199
    • 2004-11-03
    • Tomonari MasuzawaYasuhiro MiwaTatsuo SaitoTakao Araki
    • Tomonari MasuzawaYasuhiro MiwaTatsuo SaitoTakao Araki
    • G02B7/28G01C3/10G02B7/32G03B21/00G03B21/14G03B21/53H04N5/74H04N17/00
    • G03B21/53G01C3/10H04N5/74H04N9/317H04N9/3185
    • An image displayed on a liquid crystal panel is projected on a projection surface by a projection lens. An optical axis of a projection lens is perpendicular to the projection surface. However, alight emitting optical axis of a distance measurement light and an optical axis of a light receiving lens is inclined with respect to the optical axis of a projection lens, not to be perpendicular to the projection surface. A distance measurement unit is formed by unitizing a light emitting element, a light emitting lens, the light receiving lens, and a light receiving element, and the distance measurement unit is held with the projection lens by a common holder. Even if a surface like a whiteboard which has high reflectivity is used as the projection surface, high accuracy of the distance measurement is kept because diffused light from the light emitting lens, which is regularly reflected from the projection surface, is away from an effective photodetecting region of the light receiving element.
    • 通过投影透镜将显示在液晶面板上的图像投影在投影面上。 投影透镜的光轴垂直于投影面。 然而,远距离测量光的发光光轴和受光透镜的光轴相对于投影透镜的光轴倾斜,而不垂直于投影面。 通过将发光元件,发光透镜,受光透镜和受光元件组合而形成距离测量单元,并且距离测量单元通过公共保持器与投影透镜保持。 即使使用具有高反射率的白板的表面作为投影面,由于从投影面经常反射的来自发光透镜的扩散光远离有效的光电检测,因此保持距离测量的高精度 光接收元件的区域。
    • 7. 发明授权
    • Distance measuring apparatus
    • 距离测量仪
    • US5745806A
    • 1998-04-28
    • US661547
    • 1996-06-11
    • Tatsuo Saito
    • Tatsuo Saito
    • G02B7/32G03B13/20G03B13/18
    • G02B7/32
    • A distance measuring apparatus includes distance measuring units of the active and passive methods, and a distance-value selecting circuit for selecting and outputting one of distance measurement results obtained from these distance measuring units. When a self-timer mode is set, distance measurement of the active method is inhibited, and distance measurement is executed by only the passive method. When the power supply voltage is lower than a predetermined voltage value at which distance measurement can be properly executed by the active method, distance measurement by the active method is inhibited, and distance measurement is executed by only the passive method. Therefore, erroneous distance measurement can be prevented, and distance measurement having high reliability can be performed.
    • 距离测量装置包括有源和无源方法的距离测量单元和用于选择和输出从这些距离测量单元获得的距离测量结果之一的距离值选择电路。 当设置自拍模式时,禁用活动方法的距离测量,仅通过被动方式进行距离测量。 当电源电压低于通过主动方式可以适当地执行距离测量的预定电压值时,通过主动方法的距离测量被禁止,并且仅通过被动方式执行距离测量。 因此,可以防止错误的距离测量,并且可以执行具有高可靠性的距离测量。
    • 9. 发明授权
    • Distance measuring apparatus
    • 距离测量仪
    • US5652926A
    • 1997-07-29
    • US654603
    • 1996-05-29
    • Tatsuo Saito
    • Tatsuo Saito
    • G02B7/32G03B13/36
    • G02B7/32
    • A distance measuring apparatus for measuring a distance to an object, which comprises an active distance measuring unit, a passive distance measuring unit, a parameter determining unit, a memory and a distance-value selecting circuit. The memory stores a distance measurement value look-up table and a parameter look-up table. The distance-value selecting circuit outputs an active distance measurement value or a passive distance measurement value as a distance to the object on the basis of first type active and passive distance measurement points picked up from the distance measurement value look-up table and second type active and passive distance measurement points picked up from the parameter look-up table.
    • 一种距离测量装置,用于测量到物体的距离,其包括有源距离测量单元,被动距离测量单元,参数确定单元,存储器和距离值选择电路。 存储器存储距离测量值查找表和参数查找表。 距离值选择电路基于从距离测量值查找表拾取的第一类型有源和无源距离测量点和第二类型的距离输出有效距离测量值或被动距离测量值作为到达物体的距离 主动和被动距离测量点从参数查找表中提取。
    • 10. 发明授权
    • Apparatus for supporting article in heating furnace
    • 用于在加热炉中支撑物品的装置
    • US5417399A
    • 1995-05-23
    • US308959
    • 1994-09-20
    • Tatsuo SaitoKohei KobayashiKouji TakataYuichi OhgaHikaru Sato
    • Tatsuo SaitoKohei KobayashiKouji TakataYuichi OhgaHikaru Sato
    • C03B37/014C03B37/012
    • C03B37/01486Y10T403/5733
    • In an apparatus for suspending from a quartz rotary shaft, a glass article to be heat treated in a heating furnace so as to support the glass article, a slot is provided for receiving a cylindrical projection formed at an upper end of the glass article, the slot has an elliptical cross section and is formed at a lower end of the rotary shaft. A pin hole for securing the glass article to the rotary shaft, which is formed on the rotary shaft along a minor axis of the slot; wherein a clearance between a peripheral surface of the slot and that of the cylindrical projection along the minor axis of the slot is set to not more than 0.2 mm, while a clearance between the peripheral surface of the slot and that of the cylindrical projection along a major axis of the slot is set to not less than 0.4 mm. An apparatus for supporting a glass article including first and second dummy rods and a coupling member is also provided. Pins extending through the respective dummy rods and coupling member secure the rods to the member.
    • 在用于从石英旋转轴悬挂的装置中,在加热炉中热处理以支撑玻璃制品的玻璃制品设置有用于容纳形成在玻璃制品的上端的圆柱形突起的狭槽, 槽具有椭圆形截面并形成在旋转轴的下端。 一个针孔,用于将玻璃制品固定到旋转轴上,旋转轴沿着狭槽的短轴形成在旋转轴上; 其中所述槽的外周表面和所述圆柱形突起沿着所述狭槽的短轴的间隙被设定为不大于0.2mm,同时所述槽的外周表面与所述圆柱形突起的外周表面之间的间隙沿着 槽的长轴设定为不小于0.4mm。 还提供了一种用于支撑包括第一和第二虚拟棒和联接构件的玻璃制品的装置。 延伸穿过相应的虚拟杆和联接构件的销将杆固定到构件。