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51 条记录 (耗时 0.02 秒)

    Indicating apparatus for electronic flash system of TTL light measurement type
    1.
    发明授权
    Indicating apparatus for electronic flash system of TTL light measurement type 失效
    TTL光测量型电子闪光灯系统指示装置

    公开(公告)号：US4449803A

    公开(公告)日：1984-05-22

    申请号：US319618

    申请日：1981-11-09

    申请人： Masanori Yamada ,  Akira Hiramatsu

    发明人： Masanori Yamada ,  Akira Hiramatsu

    IPC分类号： G03B7/16 ,  G03B15/05

    CPC分类号： G03B7/16

    摘要： An annunciating apparatus for use with an electronic flash system includes a flash system which employs a trigger device generating a trigger signal at a time of test light emission and a light producing device responsive to the trigger signal for initiating operation of the light producing device to produce light. The annunciating apparatus includes a light sensitive device arranged to receive light passed through a photographic taking lens and produces a first electrical signal corresponding to an amount of light from a scene. The annunciating apparatus also includes a signal generating device for producing a second electrical signal corresponding to an aperture value preset on a camera at the time of test light emission for the electronic flash system and a comparison device for receiving the first and second signals to produce a control signal when the first electrical signal reaches a predetermined level. Finally, an annunciator responsive to the control signal annunciates whether a correct exposure obtains.

    摘要翻译： 用于电子闪光灯系统的报警装置包括：闪光系统，其采用在测试发光时产生触发信号的触发装置，以及响应于触发信号的发光装置，用于启动发光装置的操作以产生 光。 通知装置包括光敏装置，其被配置为接收通过摄影镜头的光，并产生对应于来自场景的光量的第一电信号。 通知装置还包括信号发生装置，用于产生对应于在电子闪光灯系统的测试发光时在相机上预设的光圈值的第二电信号;以及比较装置，用于接收第一和第二信号以产生 当第一电信号达到预定电平时的控制信号。 最后，响应于控制信号的信号器指示是否获得正确的曝光。

    Image reading apparatus with image sensor having selectively readable segments
    4.
    发明授权
    Image reading apparatus with image sensor having selectively readable segments 失效
    具有图像传感器的图像读取装置具有选择性可读段

    公开(公告)号：US5283668A

    公开(公告)日：1994-02-01

    申请号：US739492

    申请日：1991-08-02

    申请人： Akira Hiramatsu

    发明人： Akira Hiramatsu

    IPC分类号： H04N1/10 ,  H04N1/191 ,  H04N1/193 ,  H04N1/04

    CPC分类号： H04N1/128 ,  H04N1/1911 ,  H04N1/193 ,  H04N1/1013

    摘要： An image reading apparatus of the type which reads an original image by dividing it into a plurality of stripe-like areas each having a fixed width, wherein image reading is performed by reading an original image a plurality of times in a reading width which corresponds to an integral multiple of the fixed width, and wherein image signals, having a fixed width and corresponding to different respective areas, are sequentially selected in synchronism with the image reading performed a plurality of times, from among the totality of the image signals obtained by the reading.

    摘要翻译： 一种图像读取装置，其类型是通过将原始图像分割成多个具有固定宽度的条状区域来读取原图像，其中通过以与读取宽度对应的读取宽度多次读取原始图像来执行图像读取 固定宽度的整数倍，并且其中具有固定宽度并且对应于不同相应区域的图像信号与从多个图像获得的图像信号的整体中同步执行多次来顺序地选择 读。

    Apparatus for reading a film image with a photoelectric converting element and for adjusting the gain of said element
    5.
    发明授权
    Apparatus for reading a film image with a photoelectric converting element and for adjusting the gain of said element 失效
    用于利用光电转换元件读取胶片图像并调节所述元件的增益的装置

    公开(公告)号：US4974068A

    公开(公告)日：1990-11-27

    申请号：US13119

    申请日：1987-02-10

    申请人： Akira Hiramatsu ,  Yuichi Sato ,  Tokuichi Tsunekawa ,  Makoto Katsuma ,  Takeshi Kobayashi ,  Shigeki Yamada

    发明人： Akira Hiramatsu ,  Yuichi Sato ,  Tokuichi Tsunekawa ,  Makoto Katsuma ,  Takeshi Kobayashi ,  Shigeki Yamada

    IPC分类号： H04N1/10 ,  H04N1/407 ,  H04N1/48 ,  H04N5/225 ,  H04N5/253 ,  H04N5/372 ,  H04N9/78

    CPC分类号： H04N5/2254 ,  H04N1/1008 ,  H04N1/4072 ,  H04N1/484 ,  H04N3/1556 ,  H04N5/253

    摘要： There is a film image information reading apparatus called a film scanner. This apparatus comprises: a lighting optical system to illuminate a film document; a photoelectric conversion element, such as a CCD to convert the image information of the film document into the electric signal; and an adjusting circuit to adjust the output of the photoelectrical conversion element such that a predetermined density of the film document is output as an output of almost the saturation level of that element. The predetermined density is the color density of the base color of a negative film. The adjusting circuit may control the charge storage period, gain, or output level of the photoelectric conversion element. With this apparatus, the positive image can be easily derived by reversing the negative image without considering the base color of the negative film and the image signal of a high quality can be obtained.

    摘要翻译： 有一种称为胶片扫描仪的胶片图像信息读取装置。 该装置包括：照明胶片文档的照明光学系统; 诸如CCD的光电转换元件，以将胶片文档的图像信息转换成电信号; 以及调节电路，用于调节光电转换元件的输出，使得胶片原稿的预定浓度被输出为该元件的几乎饱和水平的输出。 预定的密度是负片的基色的颜色密度。 调节电路可以控制光电转换元件的电荷存储周期，增益或输出电平。 利用该装置，可以通过反转负像而不考虑负片的基色来获得正像，并且可以获得高品质的图像信号。

    Focus detecting device with shading reduction optical filter
    6.
    发明授权
    Focus detecting device with shading reduction optical filter 失效
    带遮光减光滤光片的聚焦检测装置

    公开(公告)号：US4670645A

    公开(公告)日：1987-06-02

    申请号：US659950

    申请日：1984-10-11

    申请人： Keiji Ohtaka ,  Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Akira Hiramatsu

    发明人： Keiji Ohtaka ,  Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Akira Hiramatsu

    IPC分类号： G02B7/28 ,  G02B7/34 ,  G02B27/40 ,  G03B3/00 ,  G01J1/20

    CPC分类号： G02B7/34 ,  G02B27/40

    摘要： This specification discloses a focus detecting system in which a plurality of images are formed on the basis of light beams passing through different portions of the pupil of an objective lens and the focus state of the objective lens is detected from the relative positional relation of these images and wherein filters of which the density distribution varies along the direction of arrangement of photoelectric conversion elements are disposed in front of photoelectric conversion element arrays for detecting the distributions of quantity of light of the images, thereby accomplishing shading correction.

    摘要翻译： 本说明书公开了一种焦点检测系统，其中基于通过物镜的光瞳的不同部分的光束形成多个图像，并且从这些图像的相对位置关系检测物镜的聚焦状态 并且其中密度分布沿着光电转换元件的排列方向变化的滤光器设置在用于检测图像的光量分布的光电转换元件阵列的前面，从而完成阴影校正。

    In-focus state detecting device for camera
    7.
    发明授权
    In-focus state detecting device for camera 失效
    照相机对焦状态检测装置

    公开(公告)号：US4473284A

    公开(公告)日：1984-09-25

    申请号：US420311

    申请日：1982-09-20

    申请人： Akira Hiramatsu ,  Masayoshi Yamamichi ,  Takashi Kawabata

    发明人： Akira Hiramatsu ,  Masayoshi Yamamichi ,  Takashi Kawabata

    IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/36 ,  G03B11/00 ,  G03B13/18

    CPC分类号： G02B7/36

    摘要： An in-focus state detecting device which is provided with erroneous signal discriminating means is arranged such that: The lens cap of a photo-taking lens has the whole surface or a part of the surface thereof formed into a diffuse transmission face. With this lens cap put on the photo-taking lens, a light flux is allowed to be diffused by the diffuse transmission face to obtain a uniform brightness face at the cap. Then, a light flux from the uniform brightness face of the cap is guided to the in-focus detecting device to perform a checking operation with the discriminating means to check for an erroneous action of the device.

    摘要翻译： 设置有错误信号识别装置的对焦状态检测装置被布置成使得：摄影镜头的透镜盖的整个表面或其一部分表面形成为漫射透射面。 通过将该透镜盖放置在摄影镜头上，允许光束通过漫射透射面扩散，以在帽子处获得均匀的亮度面。 然后，从盖的均匀亮度面的光束被引导到对焦检测装置，以通过识别装置执行检查操作，以检查装置的错误动作。

    Focus detecting device
    8.
    发明授权
    Focus detecting device 失效
    对焦检测装置

    公开(公告)号：US4456351A

    公开(公告)日：1984-06-26

    申请号：US343975

    申请日：1982-01-29

    申请人： Akira Hiramatsu ,  Masayoshi Yamamichi

    发明人： Akira Hiramatsu ,  Masayoshi Yamamichi

    IPC分类号： G02B7/36 ,  G03B7/08

    CPC分类号： G02B7/36

    摘要： A device which detects the focus condition of an optical system with respect to an object, includes a sensor having at least one sensing surface, the senor providing an electrical indication to associated circuitry corresponding to light which has passed through the optical system. A cleaning mechanism is operatively arranged with respect to the sensing surface of the sensor so as to keep the sensing surface clean, and thereby insure that the overall device operates properly to detect an in-focus condition of the optical system.

    摘要翻译： 检测光学系统相对于物体的聚焦状态的装置包括具有至少一个感测表面的传感器，所述传感器向对应于已通过光学系统的光的相关电路提供电指示。 清洁机构相对于传感器的感测表面可操作地布置，以便保持感测表面清洁，从而确保整个设备正常工作以检测光学系统的聚焦状态。