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    • 5. 发明授权
    • Single lens reflex camera
    • 单镜头反光相机
    • US4615603A
    • 1986-10-07
    • US656170
    • 1984-09-28
    • Nozomu KitagishiSusumu ItohSayoko Amano
    • Nozomu KitagishiSusumu ItohSayoko Amano
    • G03B13/02G03B7/099G03B7/0997G03B19/12
    • G03B19/12G03B7/09972
    • In the single lens reflex camera whose movable mirror for reflecting light from the photographic lens to the finder is made partly half-mirrored to give a portion of the light to the photosensitive element, the finder is provided with a focusing screen of high diffusing property, the movable mirror having a half-mirrored portion at the center of the entire area with the surrounding area being made perfectly reflective is provided with a pattern of finely divided areas some of which are half-mirrored and the others of which are perfectly reflective in gradually varying area ratios in a boundary area between the central and surrounding areas, and a mask is provided on the back surface of the movable mirror for shutting off the passed light through the finely divided area pattern.
    • 在将用于将来自摄影镜头的光反射到取景器的可移动镜被部分半透镜以将一部分光提供给感光元件的单镜头反光照相机中,取景器设置有高扩散特性的聚焦屏幕, 具有在整个区域的中心处的半透镜部分的周围区域被制成完全反射的可移动反射镜设置有细分区域的图案,其中一些图案是半透镜的,并且其中一些被逐渐地完全反射 在中心区域和周围区域之间的边界区域中的面积比变化,并且在可移动反射镜的后表面上设置掩模,以关闭通过细分区域图案的经过的光。
    • 8. 发明授权
    • Single lens reflex camera system capable of TTL flash output control
    • 单反相机系统能够进行TTL闪光输出控制
    • US4359275A
    • 1982-11-16
    • US215345
    • 1980-12-11
    • Hiroshi Hasegawa
    • Hiroshi Hasegawa
    • G03B7/083G03B7/099G03B7/16G03B15/05
    • G03B7/083G03B7/09972G03B7/16
    • A single lens reflex camera system capable of TTL flash output control of a flash unit which enables transmission light from the phototaking lens from a movable mirror device to a light receiving device when the mirror device is in one position and from a film surface to the light receiving device when the mirror is in a second position, the light receiving device generating a signal corresponding to the quantity of light it receives. A trigger circuit enables flash tube actuation upon film exposure and a control device controls the quantity of light emission of the tube in response to the output of the light receiving device. The trigger circuit is actuated when the mirror device is in the one position by an actuating device which includes circuitry for correcting the response of the control device of the output of the light receiving device in accordance with the difference, with respect to the same object, between the quantity of light incident on the light receiving device when the mirror device is in the one position and the quantity of light incident on the light receiving device when the mirror device is in the second position.
    • 一种能够对闪光单元进行TTL闪光输出控制的单透镜反射相机系统,当镜装置处于一个位置并且从胶片表面到光的位置时,能够将来自感光透镜的光从可移动镜装置传输到光接收装置 当反射镜处于第二位置时,光接收装置产生对应于其所接收的光量的信号。 触发电路使得能够在胶片曝光时进行闪光管激活,并且控制装置响应于光接收装置的输出来控制管的发光量。 当反射镜装置通过致动装置处于一个位置时,触发电路被致动,该致动装置包括用于根据相对于相同物体的差异来校正光接收装置的输出的控制装置的响应的电路, 在反射镜装置处于一个位置时入射到光接收装置的光量与反射镜装置处于第二位置时入射到光接收装置的光量之间。