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    • 11. 发明授权
    • Exposure calculation device for camera
    • 相机曝光计算装置
    • US5687407A
    • 1997-11-11
    • US702857
    • 1996-08-26
    • Hiroyuki IwasakiTadao Takagi
    • Hiroyuki IwasakiTadao Takagi
    • G03B7/099G03B7/28H04N5/235G03B7/00
    • H04N5/2351G03B7/09979G03B7/28
    • An exposure calculation device for use in a camera, is provided with a light metering device for effecting light metering in each of plural areas divided in the object field and generating a light metering signal, containing information relating to the color of the object in each area. A first judgment device judges, whether the object in each area is colored or uncolored, based on the light metering signal and determining colored areas in which the object is colored and uncolored areas in which the object is uncolored; A second judgment device judges whether a predetermined uncolored area contains a white or black object, based on the light metering signals from the colored areas and those from the uncolored areas; An exposure value determining device determines the exposure value according to the light metering signals, based on the results of judgment by the first and second judgment devices.
    • 一种用于照相机的曝光计算装置,设置有用于在物场中划分的多个区域中的每一个中进行光计量的光计量装置,并且生成包含与每个区域中的对象的颜色相关的信息的测光信号 。 第一判断装置基于测光信号判断每个区域中的物体是否着色或未着色,并确定物体着色的着色区域和未着色物体的未着色区域; 第二判断装置基于来自着色区域的光计量信号和来自未着色区域的光计量信号来判断预定的未着色区域是否包含白色或黑色物体; 曝光值确定装置基于第一和第二判断装置的判断结果,根据测光信号来确定曝光值。
    • 13. 发明授权
    • Ultrasonic motor having high drive efficiency
    • 超声波电机具有较高的驱动效率
    • US5661360A
    • 1997-08-26
    • US484861
    • 1995-06-07
    • Tadao TakagiDaisuke Saya
    • Tadao TakagiDaisuke Saya
    • H01L41/09H02N2/12H02N2/16H01L41/08
    • H02N2/163H02N2/007H02N2/0085
    • An ultrasonic motor has a stator having a piezoelectric member vibrated by a drive signal, and an elastic member for generating traveling vibration wave in a drive surface thereof upon vibration of the piezoelectric member, a rotor which is urged against the drive surface of the elastic member and is driven by the generated traveling vibration wave, a support member integrally molded on the elastic member, and a fixing member for holding the support member. In the ultrasonic motor, one end face of the support member is formed at the same level as the drive surface or the junction surface of the elastic member, an electrode of the piezoelectric member is grounded through the support member, a plurality of holes are regularly formed in the circumferential direction of the support member, or the support member is fixed to the fixing member by an adhesive, thereby improving drive efficiency.
    • 超声波马达具有具有通过驱动信号振动的压电构件的定子,以及用于在压电构件的振动时在其驱动表面中产生行进振动波的弹性构件,被推压在弹性构件的驱动表面上的转子 并且由所产生的行进振动波驱动,一体地模制在弹性构件上的支撑构件和用于保持支撑构件的固定构件。 在超声波马达中,支撑构件的一个端面形成在与弹性构件的驱动面或接合面相同的高度,压电构件的电极通过支撑构件接地,多个孔是规则的 在支撑构件的圆周方向上形成,或者通过粘合剂将支撑构件固定到固定构件,从而提高驱动效率。
    • 15. 发明授权
    • Automatic flash amount control apparatus of camera
    • 相机自动闪光量控制装置
    • US5442417A
    • 1995-08-15
    • US81221
    • 1993-06-25
    • Tadao Takagi
    • Tadao Takagi
    • G03B7/099G03B7/16G03B13/36G03B15/05
    • G03B7/16G03B7/09979
    • An automatic flash amount control apparatus of camera in which a flash device and a photographic lens are set, comprises a focus detection device for performing focus detection with a photographic field being divided into a plurality of focus detection zones, a metering device for metering in a plurality of divided metering regions beams emitted from the flash device and then reflected by the photographic field, a control region selecting device for selecting a metering region preponderantly to contribute to a flash amount control, and a control device for adjusting a flash amount of the flash device, based on a metering value in the metering region selected by the control region selecting device, wherein the control region selecting device selects a region determined in accordance with an output of the focus detecting device if the photographic lens has a long focal length, but a region preliminarily determined if the photographic lens has a short focal length.
    • 一种其中设置有闪光装置和摄影透镜的相机的自动闪光量控制装置,包括:焦点检测装置,用于利用被分成多个焦点检测区域的照相场进行焦点检测;计量装置, 从闪光装置发出的多个分光计量区域光束,然后由照相场反射;控制区域选择装置,主要用于选择测光区域以有助于闪光量控制;以及控制装置,用于调节闪光灯的闪光量 装置,基于由控制区域选择装置选择的测光区域中的测光值,其中,如果摄影镜头具有长焦距,则控制区域选择装置选择根据焦点检测装置的输出确定的区域,但是 预先确定摄影镜头是否具有短焦距的区域。
    • 16. 发明授权
    • Exposure calculation device for camera
    • 相机曝光计算装置
    • US5434640A
    • 1995-07-18
    • US104619
    • 1993-08-11
    • Tadao TakagiHiroyuki Iwasaki
    • Tadao TakagiHiroyuki Iwasaki
    • G03B7/091G03B7/099G03B7/08
    • G03B7/09979G03B7/095
    • The exposure calculation device for camera comprises a first photometric means which performs photometry on the photographic field divided into a plurality of regions and a second photometric means for which by comparison with the first photometric means the separation number is lower and which excels at low luminance photometric performance, and a calculation means which calculates an exposure value in a comparatively high luminance situation by dominantly using the output of the first photometric means and in a comparatively low illumination situation by dominantly using the output of the second photometric means; and it is possible to obtain an accurate exposure value, even in a special environment such as a high temperature situation or low luminance or the like.
    • 照相机曝光计算装置包括:第一测光装置,对分成多个区域的摄影场进行测光;第二测光装置与第一测光装置进行比较,分离次数较低,并且在低亮度光度测定 以及计算装置,其通过主要使用第一测光装置的输出并且在相对较低的照明情况下主要使用第二测光装置的输出来计算在较高亮度情况下的曝光值; 并且即使在诸如高温情况或低亮度等的特殊环境中也可以获得准确的曝光值。
    • 18. 发明授权
    • Flash lighting apparatus
    • 闪光照明设备
    • US5424797A
    • 1995-06-13
    • US115650
    • 1993-09-03
    • Tadao TakagiTakatoshi Ashizawa
    • Tadao TakagiTakatoshi Ashizawa
    • G03B7/099G03B7/16G03B15/05
    • G03B15/05G03B7/09979G03B7/16G03B2215/0528G03B2215/0535
    • A flash lighting apparatus effects proper lighting for different portions of an object field by the use of a light control device disposed on an optical path between a flash light emitter and the object field. In one embodiment, the flash light control device has a plurality of main control portions and at least one sub-control portion adjacent to main control portions. An adjusting circuit adjusts the quantity of light projected by the control portions so that the quantity of light projected by a sub-control portion may be between the quantities of light projected by the adjacent main control portions. In one embodiment, a single booster circuit provides boosted voltage for use in a light emission control circuit that causes flash light emission and also for use in a control circuit for a light control device. In one embodiment, a photometering circuit photometers areas of an object field, and the number of light control portions is greater than the number of photometered areas.
    • 闪光照明装置通过使用设置在闪光发光器和物场之间的光路上的光控制装置来对物场的不同部分施加适当的照明。 在一个实施例中,闪光灯控制装置具有多个主控制部分和与主控制部分相邻的至少一个子控制部分。 调节电路调节由控制部分投射的光量,使得由副控制部分投射的光量可以在相邻主控部分投射的光量之间。 在一个实施例中,单个升压电路提供用于发光控制电路的升压电压,其引起闪光发光并且还用于光控制装置的控制电路。 在一个实施例中,物体场的测光电路光度计区域和光控制部分的数量大于测光区域的数量。
    • 19. 发明授权
    • Automatic flash limiting apparatus in a camera
    • 相机中的自动闪光限制装置
    • US5371568A
    • 1994-12-06
    • US156651
    • 1993-11-16
    • Tadao TakagiNorikazu Yokonuma
    • Tadao TakagiNorikazu Yokonuma
    • G03B7/099G03B7/16G03B15/05
    • G03B7/16G03B7/09974G03B7/09976G03B7/09979
    • The apparatus of the present invention is provided with flashing device for effecting preliminary flashing and main flashing, a split photometry unit for metering reflected light from the area of the object field divided into a plurality of areas and outputting a photometric output for each of these areas, preliminary flashing control unit, a calculation unit and a main flashing control unit. The preliminary flashing control unit causes the flashing device to effect preliminary flashing prior to main flashing, and when in that case, at least one of the photometric outputs from the split photometry unit reaches a predetermined value, causes the flashing device to repeat the preliminary flashing while decreasing the quantity of emitted light thereof, and when the photometric outputs become null before the predetermined value is reached, causes the flashing device to stop the preliminary flashing. The calculation unit determines the divided areas which are not used for the flash limiting during the main flashing by the use of the photometric outputs and the quantity of emitted light during preliminary flashing at the last stage. The main flashing control unit controls the main flashing of the flashing device on the basis of the output of the calculation unit.
    • 本发明的装置设置有用于进行预闪和主闪光的闪光装置,分光测光单元,用于计量被划分成多个区域的物场区域的反射光,并输出这些区域中的每一个区域的光度输出 预备闪光控制单元,计算单元和主闪光控制单元。 预备闪光控制单元使得闪光装置在主闪光之前实现初步闪光,并且当在这种情况下,来自分光测光单元的至少一个测光输出达到预定值时,使闪光装置重复预闪 同时减少其发射光量,并且当光度输出在达到预定值之前变为零时,使闪光装置停止初步闪光。 计算单元通过在最后阶段通过使用光度输出和初步闪光期间的发光量来确定在主闪光期间不用于闪光限制的分割区域。 主闪烁控制单元根据计算单元的输出控制闪光装置的主闪烁。
    • 20. 发明授权
    • Exposure control apparatus for camera
    • 照相机曝光控制装置
    • US4984007A
    • 1991-01-08
    • US259748
    • 1988-10-19
    • Tadao Takagi
    • Tadao Takagi
    • G01J1/44G03B7/20
    • G03B7/20
    • A camera body to which a photographing lens storing data associated with a full-aperture value and data associated with a position of an exit pupil can be attached, includes an optical member for scattering radiation from the photographing lens, light-receiving element, and a photometric optical system for guiding the radiation from the photographing lens through the optical member toward the light-receiving element. The optical member is arranged on a side opposite to an object with respect to the photographing lens. The light-receiving element generates an output according to the radiation incident from the photometric optical system. The camera body further includes a correction circuit for reading out the data associated with the full-aperture value and the position of the exit pupil, calculating a correction amount based on the readout data, and correcting the output from the light-receiving element based on the calculated correction amount, and an exposure control circuit for performing exposure control based on the corrected output.
    • 存储与全光圈值相关联的数据的拍摄镜头和与出射光瞳的位置相关联的数据可以附接到其上的相机体包括用于散射来自拍摄镜头,光接收元件和 光度光学系统,用于将来自拍摄透镜的辐射通过光学构件引向光接收元件。 光学构件相对于摄影镜头布置在与物体相对的一侧。 光接收元件根据从测光光学系统入射的辐射产生输出。 相机主体还包括校正电路,用于读出与全光圈值相关联的数据和出射光瞳的位置,基于读出的数据计算校正量,并且基于来自光接收元件的输出进行校正 所计算的校正量,以及用于基于校正输出执行曝光控制的曝光控制电路。