公开(公告)号：US5315889A

公开(公告)日：1994-05-31

申请号：US900276

申请日：1992-06-18

申请人： Shuuji Moro ,  Kanehiro Tada ,  Yasuo Nishida ,  Eiji Ohshima

发明人： Shuuji Moro ,  Kanehiro Tada ,  Yasuo Nishida ,  Eiji Ohshima

IPC分类号： G03B9/02 ,  G03B9/06 ,  F16H21/44

CPC分类号： G03B9/02 ,  Y10T74/18944 ,  Y10T74/18952

摘要： An iris drive mechanism has two slidable diaphragms which are operatively connected with a motor through a lever arrangement which, for a given motor output shaft rotational speed moves the diaphragms slowly at their extreme positions wherein the aperture is small and large respectively, and more quickly at an intermediate stage. The slower movement when the aperture is small improves the F number resolution.

摘要翻译： 虹膜驱动机构具有两个可滑动隔膜，其通过杠杆装置与电动机可操作地连接，对于给定的电动机输出轴转速，其隔膜在其极小的位置缓慢地移动，其中孔径分别小且较大，并且更快地 中间阶段 当光圈小时，较慢的移动提高了F数分辨率。

公开(公告)号：US5860030A

公开(公告)日：1999-01-12

申请号：US521407

申请日：1995-08-30

申请人： Kanehiro Tada ,  Ryuzo Ohta

发明人： Kanehiro Tada ,  Ryuzo Ohta

IPC分类号： G02B7/08 ,  G03B17/04 ,  G03B17/00

CPC分类号： G03B17/04

摘要： In a new retractable lens barrel of a type wherein a movable barrel is mounted protrudably in an optical axis direction from a fixed barrel or a camera body and filming is possible when the movable barrel is in a protruded state and comprising a movable lens of a variable power and/or focusing system, a space formed when the movable barrel is protruded from the fixed barrel or camera body is made a space in which the movable lens is movable during filming and the casing of the iris unit and a lens holder of a fixed lens are formed integrally. Because the space in which the movable lens is movable during filming is used to accommodate the movable barrel when the camera is not being used and the movable barrel is retracted, the length of the retracted lens barrel in the front-rear direction can be made short. Also, because the casing of the iris unit and the lens holder of a fixed lens are formed integrally, the number of parts is reduced and the optical axes of different lens groups and the iris unit are not readily misaligned when the lens barrel is being assembled.

摘要翻译： 在一种新的可伸缩镜筒中，其中可移动镜筒从固定镜筒或照相机主体沿光轴方向突出地安装，并且当可动镜筒处于突出状态并且包括可变镜头的可移动镜片时，可以进行成像 动力和/或聚焦系统，当可动筒从固定筒或照相机体突出时形成的空间被制成一个空间，在该空间中，可动镜头在成像过程中可移动，并且可旋转镜头的壳体和固定 透镜一体形成。 因为在成像期间可移动透镜可移动的空间用于容纳可移动的镜筒，当照相机未被使用并且可移动的镜筒缩回时，缩回镜筒在前后方向上的长度可以缩短 。 此外，由于可变光学单元的壳体和固定透镜的透镜保持器一体地形成，所以当组装透镜镜筒时，部件的数量减少，不同透镜组和光圈单元的光轴不容易对准 。

公开(公告)号：US5377048A

公开(公告)日：1994-12-27

申请号：US021681

申请日：1993-02-24

申请人： Kanehiro Tada ,  Eiji Ohshima

发明人： Kanehiro Tada ,  Eiji Ohshima

IPC分类号： G02B7/02 ,  G02B7/04 ,  H04N5/225 ,  H04N5/232 ,  G02B15/14

CPC分类号： G02B7/04

摘要： A lens barrel is composed of a shaft located in a lens barrel parallel to the optical axis thereof, a movable lens frame installed in the lens barrel having a bearing to receive the shaft and holding a lens therein to be moved therewith along the direction of the optical axis via the bearing and the shaft, and a cantilever made from a elastic material of which one end is fixed to the bearing and another end is pressed to the shaft, the cantilever being extended along the direction of the optical axis. The cantilever may be a flat spring formed of synthetic resin.

摘要翻译： 镜筒由位于平行于其光轴的镜筒中的轴组成，安装在透镜镜筒中的可移动透镜框架具有用于接收轴并将透镜保持在其中的轴承，以沿其移动的方向沿着 光轴通过轴承和轴，以及由弹性材料制成的悬臂，其一端固定在轴承上，另一端被压向轴，悬臂沿光轴方向延伸。 悬臂可以是由合成树脂形成的扁平弹簧。

公开(公告)号：US4746993A

公开(公告)日：1988-05-24

申请号：US865283

申请日：1986-05-21

申请人： Kanehiro Tada

发明人： Kanehiro Tada

IPC分类号： G11B5/012 ,  G11B27/34 ,  G11B31/00 ,  G11B33/10 ,  H04N1/21 ,  H04N5/225 ,  H04N5/765 ,  H04N5/781

CPC分类号： H04N1/2112 ,  G11B27/34 ,  G11B31/006 ,  G11B33/10 ,  G11B5/012 ,  H04N1/2125 ,  H04N2101/00 ,  H04N2201/214 ,  H04N2201/3264 ,  Y10S358/906

摘要： A solid-state still camera includes a detector for detecting how much track space is already occupied and producing a detector signal for every occupied track. A counter counts the detector signals and produces a counter signal representative of the number of occupied tracks. The solid-state still camera is also provided with a manually operable mode selector for selecting video recording mode from among a plurality of different modes, such as frame mode and field mode. An arithmetic circuit is associated with the counter to receive the counter signals therefrom. The arithmetic circuit is also connected to the mode selector to receive a selected mode indicative signal. The arithmetic circuit derives the number of pictures that can be taken based on the counter signal value and the selected mode indicative signal. The value derived by the arithmetic circuit is displayed on a visual display. Preferably, the solid-state still camera also includes an audio recording feature. The detector also detects the tracks occupied by recording audio signals. The indicator makes it possible to conveniently know the number of blank tracks available for taking pictures or recording audio sounds.

摘要翻译： 固态静态照相机包括用于检测多少磁道空间已被占用的检测器，并为每个占用磁道产生检测器信号。 计数器对检测器信号进行计数，并产生表示占用轨道数量的计数器信号。 固态静态照相机还具有手动操作的模式选择器，用于从诸如帧模式和场模式的多个不同模式中选择视频记录模式。 算术电路与计数器相关联以从其接收计数器信号。 算术电路也连接到模式选择器以接收所选择的模式指示信号。 算术电路根据计数器信号值和所选择的模式指示信号，得出可拍摄的图像数量。 由运算电路得到的值显示在视觉显示器上。 优选地，固态静态照相机还包括音频记录特征。 检测器还检测记录音频信号所占据的轨迹。 该指示灯使得可以方便地知道可用于拍摄照片或录制音频声音的空白轨迹的数量。