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    • 51. 发明授权
    • Exposure factor setting device for a camera
    • 相机曝光因子设定装置
    • US4121231A
    • 1978-10-17
    • US771385
    • 1977-02-23
    • Tatsuya TaguchiNobuaki Date
    • Tatsuya TaguchiNobuaki Date
    • G03B7/01G03B7/02G03B7/081G03B17/18
    • G03B7/02G03B7/087
    • An exposure factor setting device for a photographic camera comprising manually adjustable shutter speed and diaphragm aperture setting components, an indicator cooperative with a shutter speed scale and capable of responding to either of the outputs of the shutter speed setting component and an exposure value computer, and first and second gates connected respectively between the shutter speed setting component and the indicator and between the computer and the indicator and arranged to be acted on alternately in sequence by a common pulse generator. When the previously selected combination of shutter speed and diaphragm aperture is not correct in conformity with the prevailing scene brightness, the indicator is caused to flicker between two positions for the automatic and manual shutter speed values. To attain correct adjustment of shutter speed and diaphragm aperture, the photographer may operate with either of the shutter speed and diaphragm aperture setting components until the amplitude of flickering of the indicator is reduced to zero, while looking through the finder as the indicator is visible in or adjacent the finder image field.
    • 一种用于照相机的曝光因子设置装置,包括手动调节的快门速度和光圈孔径设置部件,与快门速度刻度器协调的并且能够响应快门速度设置部件和曝光值计算机中的任一个的指示器,以及 第一和第二门分别连接在快门速度设定部件和指示器之间以及计算机与指示器之间,并且被布置为通过公共脉冲发生器顺序交替地进行操作。 当先前选择的快门速度和光圈光圈的组合不符合当前的场景亮度时,指示灯会在自动和手动快门速度值的两个位置之间闪烁。 为了获得快门速度和光圈孔径的正确调整,拍摄者可以使用快门速度和光圈孔径设置组件中的任何一个进行操作,直到指示灯闪烁的幅度减小到零,同时通过取景器观察指示器是否可见 或邻近取景器图像场。
    • 60. 发明授权
    • Image sensing device with shutter-readout coordination
    • 具有快门读出协调的图像感测装置
    • US4918533A
    • 1990-04-17
    • US248270
    • 1988-09-20
    • Nobuaki DateNobuo TezukaSyuichiro SaitoAkihiko TojoSusumu Kozuki
    • Nobuaki DateNobuo TezukaSyuichiro SaitoAkihiko TojoSusumu Kozuki
    • H04N5/235H04N3/14
    • H04N5/2353
    • An image sensing device comprises image sensing apparatus for converting an optical image into an electrical signal; shutter apparatus for blocking light incident upon the image sensing apparatus; periodic signal generating apparatus for forming periodic signals which are produced for periodically reading the electrical signal of the image sensing apparatus; a switch for giving an instruction to operate the shutter apparatus; first timer apparatus to operate in response to a predetermined periodic signal produced after the switch is operated; and shutter driving apparatus which begins to operate for opening the shutter apparatus after the lapse of a predetermined time counted by the timer apparatus. The device is capable of cancelling a delay in the operation of the shutter apparatus, etc. by the first timer apparatus. The device is provided with closure detecting apparatus to detect a shift of the shutter apparatus from an open state to a closed state; and an inhibiting apparatus to inhibit the above-stated reading by the periodic signal generating apparatus until the output of the closure detecting apparatus is obtained after commencement of a still picture image sensing process. This arrangement deletes any adverse effect of a bounce or bound of the shutter apparatus even if it takes place at the end of a shutter travel. The device is provided further with second timer apparatus which operates in response to a predetermined periodic signal obtained after the switch is operated. The shutter driving apparatus starts to open the shutter apparatus after the lapse of a predetermined length of time counted by the first timer apparatus and starts to close the shutter apparatus after the lapse of another length of time counted by the second timer apparatus, so that the shutter apparatus can be opened and closed with highly precise timing.
    • 图像感测装置包括用于将光学图像转换成电信号的图像感测装置; 用于遮挡入射到图像感测装置上的光的快门装置; 用于形成用于周期性地读取图像感测装置的电信号的周期性信号的周期信号发生装置; 用于给出操作快门装置的指令的开关; 第一定时器装置,用于响应于在所述开关被操作之后产生的预定周期信号而工作; 以及快门驱动装置,其在经过定时器装置计数的预定时间之后开始操作以打开快门装置。 该装置能够消除第一定时装置对快门装置等的操作的延迟。 该装置设置有闭合检测装置,以检测快门装置从打开状态到关闭状态的移动; 以及在静止图像感测处理开始之后获得闭包检测装置的输出之前,通过周期信号发生装置禁止上述读取的禁止装置。 这种布置消除了快门装置的弹跳或束缚的任何不利影响,即使在快门行进结束时发生。 该设备还具有响应于在操作开关之后获得的预定周期信号而工作的第二定时器设备。 快门驱动装置在经过第一定时装置计数的预定时间长度之后开始打开快门装置,并且在经过由第二定时装置计数的另一个时间长度之后开始关闭快门装置, 快门装置可以高精度定时打开和关闭。