公开(公告)号：US5956170A

公开(公告)日：1999-09-21

申请号：US947941

申请日：1997-10-09

申请人： Hideharu Miyagaki ,  Koichi Ise

发明人： Hideharu Miyagaki ,  Koichi Ise

IPC分类号： G02F1/15 ,  G02F1/157 ,  G02F1/153

CPC分类号： G02F1/157

摘要： An optical unit which comprises a pair of substrates 1, 1', which are provided with electrodes of specific configuration 4a, 4b, 4a', 4b', facing each other with the electrodes inside, a substance 7 placed between said paired substrates, said substance being capable of controlling the amount of transmitted light in response to a specific voltage applied to said electrodes, and light shielding films 2, 2' to confine the area to be shielded, said light shielding films being formed on the same side of the substrates 1, 1' that on which the electrodes 4a, 4b, 4a', 4b' are formed.A process for producing an optical unit, said process comprising the steps of forming light shielding films 2, 2' in the area to be shielded on a pair of substrates 1, 1', forming electrodes of specific configuration 4a, 4b, 4a', 4b' on that side of the substrate on which said light shielding films have been formed, and filling the gap between said paired substrates 1, 1' with a substance 7 capable of controlling the amount of transmitted light in response to a specific voltage applied to said electrodes 4a, 4b, 4a', 4b'.The optical unit exhibits good display and optical characteristics (such as good light shielding properties, narrow light shielding width, and large display part). The process is superior in productivity.

摘要翻译： 一种光学单元，其包括一对基板1,1'，其具有特定构型4a，4b，4a'，4b'的彼此面对的电极，电极内部，放置在所述成对基板之间的物质7， 能够响应于施加到所述电极的特定电压而控制透射光量的物质以及限制待屏蔽区域的遮光膜2,2'，所述遮光膜形成在基板的同一侧上 1,1'，其上形成有电极4a，4b，4a'，4b'。 一种制造光学单元的方法，所述方法包括以下步骤：在要被屏蔽的区域中形成一个形成特定构型4a，4b，4a'的电极的一对基板1,1'上的遮光膜2,2' 4b'，其上形成有所述遮光膜的基板的一侧，并且将能够根据施加到所述遮光膜的特定电压控制透射光量的物质7填充所述成对基板1,1'之间的间隙 所述电极4a，4b，4a'，4b'。 光学单元具有良好的显示和光学特性（例如良好的遮光性，窄的遮光宽度和大的显示部分）。 该过程在生产力方面是优越的。

公开(公告)号：US4878737A

公开(公告)日：1989-11-07

申请号：US133788

申请日：1987-12-16

申请人： Koichi Ise

发明人： Koichi Ise

IPC分类号： G02B27/46 ,  H04N9/07

CPC分类号： G02B27/46

摘要： An optical low-pass filter for use in the optical system of a color video camera has first and second periodic structures on the same or opposed major surfaces of a transparent substrate and which are dimensioned and arranged in respect to each other to provide a modulation transfer function, in at least the horizontal scanning direction of the camera, which is higher than a predetermined value for frequencies in a range lower than a cut-off spatial frequency and which is low over a range of frequencies extending from the cut-off spatial frequency to substantially more than twice said cut-off spatial frequency.

摘要翻译： 用于彩色摄像机的光学系统的光学低通滤波器在透明基板的相同或相对的主表面上具有第一和第二周期性结构，并且它们相对于彼此尺寸和布置以提供调制转印 在至少相机的水平扫描方向上的功能，其对于低于截止空间频率的范围内的频率而高于预定值，并且在从截止空间频率延伸的频率范围内为低 到大约两倍以上的截止空间频率。

公开(公告)号：US5463496A

公开(公告)日：1995-10-31

申请号：US209714

申请日：1994-03-14

申请人： Koichi Ise

发明人： Koichi Ise

IPC分类号： G02B13/18 ,  G02B13/00 ,  G02B15/16 ,  G02B27/46 ,  G02B3/02 ,  G02B9/14

CPC分类号： G02B13/00 ,  G02B27/46

摘要： An image pickup optical system having an image pickup lens system having in turn a plurality of lenses arranged in multiple stages for forming an image of an object on an image plane of an image pickup device is disclosed. The image pickup optical system includes a double refraction plate arranged downstream of the image pickup lens system, a diaphragm unit, as a first optical unit, for determining the F-number of the image pickup lens system by a diaphragm aperture, and a second optical unit. When the F-number is equal to a pre-set value Fd or less, the second optical unit operates in conjunction with the double refraction plate for lowering the modulation transfer function (MTF) by the aberration due to an aspherical surface for a range of the spatial frequency not less than the cut-off frequency r.sub.c. Sufficient spurious signal suppressive effects may be obtained even if the optical low-pass filter is constituted by a sole double refraction plate, such as a quartz plate.

摘要翻译： 公开了一种摄像光学系统，其具有摄像透镜系统，其具有多个以多级布置的透镜，用于在图像拾取器件的图像平面上形成物体的图像。 图像拾取光学系统包括布置在图像拾取透镜系统的下游的双折射板，作为第一光学单元的光阑单元，用于通过光阑孔确定图像拾取透镜系统的F数，以及第二光学 单元。 当F数等于预定值Fd或更小时，第二光学单元与双折射板一起操作，用于通过非球面的像差降低调制传递函数（MTF），范围为 空间频率不小于截止频率rc。 即使光学低通滤波器由诸如石英板的唯一双折射板构成，也可以获得足够的寄生信号抑制效果。

公开(公告)号：US5293542A

公开(公告)日：1994-03-08

申请号：US718970

申请日：1991-06-21

申请人： Koichi Ise ,  Yoshinori Tomita

发明人： Koichi Ise ,  Yoshinori Tomita

IPC分类号： G03B9/02 ,  G03B9/06 ,  H04N5/238 ,  H04N5/30

CPC分类号： H04N5/238 ,  G03B9/06

摘要： A video camera in which an iris in an optical system is composed of a plurality of diaphragms, and at least two of the plurality of diaphragms are respectively provided with a light amount limiting filter such that the light amount limiting filters attached on the at least two diaphragms completely surround a transparent portion when the iris is half closed, to thereby provide satisfactory characteristics of the optical system when the iris is half closed.

摘要翻译： 一种摄像机，其中光学系统中的光圈由多个光阑组成，并且所述多个光阑中的至少两个分别设置有光量限制滤光器，使得所述光量限制滤光片附着在所述至少两个 当虹膜半闭合时，隔膜完全围绕透明部分，从而当虹膜半闭合时提供令人满意的光学系统特性。

公开(公告)号：US06456345B1

公开(公告)日：2002-09-24

申请号：US09301557

申请日：1999-04-29

申请人： Koichi Ise

发明人： Koichi Ise

IPC分类号： G02F13335

CPC分类号： G02F1/13475 ,  G02F1/133528

摘要： A light controlling apparatus comprises a GH cell and a polarizing plate. The polarizing plate is attached to an iris blade, and movable inside/outside the effective optical path of the light incident to the GH cell. The iris blades are driven by a motor not shown in the drawing to overlap each other, and at the time, the polarizing plate is moved inside the effective optical path to cover the aperture. If the brightness of an object increases more, the GH cell absorbs the light to control the light. Because the polarizing plate is movable outside the effective optical path of the light, the light is not absorbed by the polarizing plate, and the maximum transmittance of the light controlling apparatus is increased, therefore the contrast ratio is increased and the light quantity is maintained uniform.

摘要翻译： 光控制装置包括GH电池和偏振片。 偏振片安装在虹膜叶片上，可以在入射到GH细胞的光的有效光路内/外移动。 虹膜叶片由图中未示出的马达驱动，彼此重叠，此时偏振板在有效光路内移动以覆盖孔。 如果物体的亮度增加，GH细胞吸收光线来控制光线。 由于偏振板可以在光的有效光路外移动，所以光不被偏振片吸收，并且光控制装置的最大透射率增加，因此对比度增加并且光量保持均匀 。

公开(公告)号：US5471339A

公开(公告)日：1995-11-28

申请号：US209713

申请日：1994-03-14

申请人： Koichi Ise ,  Yasuo Nishida ,  Akio Yasuda

发明人： Koichi Ise ,  Yasuo Nishida ,  Akio Yasuda

IPC分类号： G02F1/15 ,  G02F1/155 ,  G03B9/02 ,  G02F1/153

CPC分类号： G02F1/155

摘要： A small-sized diaphragm device for an image pickup lens system having an electrochromic element the light transmitting properties of which are changed on application of an electrical voltage. The diaphragm device also includes a first set of plural concentrically arranged transparent electrodes, a second set of plural concentrically arranged transparent electrodes and third electrodes formed on the outermost peripheries of these sets of transparent electrodes for acting as counter-electrodes for the transparent electrodes. The diaphragm device has a sufficient light transmittance when in the transparent state, while having high light interrupting properties when in the light interrupting state.

摘要翻译： 一种用于摄像透镜系统的小尺寸隔膜装置，具有电致变色元件，其透光性能在施加电压时发生变化。 隔膜装置还包括第一组多个同心布置的透明电极，第二组多个同心布置的透明电极和形成在这些透明电极组的最外周的第三电极，用作透明电极的对电极。 当处于透光状态时，隔膜装置具有足够的透光性，同时在遮光状态下具有高的光中断特性。