公开(公告)号：US07230598B2

公开(公告)日：2007-06-12

申请号：US10311656

申请日：2002-04-19

申请人： Masaru Kawabata ,  Toru Udaka ,  Toshiharu Yanagida ,  Toshifumi Takaoka ,  Kazuhiro Tanaka

发明人： Masaru Kawabata ,  Toru Udaka ,  Toshiharu Yanagida ,  Toshifumi Takaoka ,  Kazuhiro Tanaka

IPC分类号： G09G3/36

CPC分类号： H04N5/238 ,  G02F1/13306 ,  G02F1/133528 ,  G02F1/13725

摘要： An electrical dimmer device and its driving method applicable to, for example, an image pickup unit and a display unit operate so that when a control signal for stop adjustment is changed from its current value of stop adjustment to a larger value, which occurs when the light transmissivity of a positive type liquid crystal is raised, or when the light transmissivity of a negative type liquid crystal is lowered, the control signal is temporarily varied to an intermediate value that is larger than the larger value. The energy of the varied larger value and a time during which that varied value is applied are determined in accordance with predetermined values. By doing so, it is possible to make a response speed when changing the light transmissivity extremely faster and thus attain a response time, of for example, one field period of time or less required for a stop mechanism of a video camera.

摘要翻译： 适用于例如图像拾取单元和显示单元的电气调光装置及其驱动方法进行操作，使得当用于停止调整的控制信号从其当前的停止调整值改变为更大的值时 正型液晶的透光率提高，或者当负型液晶的透光率降低时，控制信号暂时变化为大于较大值的中间值。 根据预定值确定变化的较大值的能量和施加该变化值的时间。 通过这样做，可以更快地改变光透射率时作出响应速度，从而获得例如对于摄像机的停止机构所要求的一个场周期或更短的响应时间。

公开(公告)号：US20050078265A1

公开(公告)日：2005-04-14

申请号：US10946282

申请日：2004-09-21

申请人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

发明人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

IPC分类号： G02B5/00 ,  G02B27/28 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/139 ,  H04N5/225 ,  H04N5/238 ,  C09K19/60

CPC分类号： G02F1/13725 ,  G02B5/005 ,  G02B27/281 ,  G02F1/13306 ,  G02F1/133509 ,  H04N5/2254 ,  H04N5/238

摘要： A light control device and an imaging device suitable for the effective and stabilized driving of a Guest-Host type liquid crystal element. A light control device which is provided with a light controlling GH cell and a UV cut filter provided on the light incident side of the GH cell and which is therefore reduced significantly in the quantity of ultraviolet ray applied to the GH cell, thereby preventing the photodecomposition or photodegradation of materials constituting a liquid crystal layer in the GH cell; and an imaging device such as a CCD camera having this light control device disposed on the optical path thereof.

摘要翻译： 一种适用于宾客型液晶元件的有效和稳定驱动的光控制装置和成像装置。 一种光控装置，其设置有控制GH电池和设置在GH电池的光入射侧的紫外线截止滤波器，因此能够显着减少施加到GH电池的紫外线的量，从而防止光分解 或在GH细胞中构成液晶层的材料的光降解; 以及诸如具有设置在其光路上的该光控制装置的CCD照相机的成像装置。

公开(公告)号：US06791657B2

公开(公告)日：2004-09-14

申请号：US09947120

申请日：2001-09-05

申请人： Toshiharu Yanagida ,  Toru Udaka ,  Masaru Kawabata

发明人： Toshiharu Yanagida ,  Toru Udaka ,  Masaru Kawabata

IPC分类号： C09K1960

CPC分类号： G02F1/13725 ,  G02F2001/133388

摘要： A light control device includes a GH cell and a polarizer wherein a host material is made of a negative type liquid crystal whose dielectric anisotropy is negative and a guest material is made of a dichromatic positive type dye. The polarizer is provided at a side of light incident on the polarizer. A cell gap ranges from 2 &mgr;m to 4 &mgr;m, at least, in an effective light path.

摘要翻译： 光控制装置包括GH电池和偏振器，其中主体材料由介电各向异性为负的负型液晶制成，客体材料由二色正性型染料制成。 偏振器设置在入射在偏振器上的光的一侧。 至少在有效光路中，细胞间隙范围为2μm至4μm。

公开(公告)号：US06876412B2

公开(公告)日：2005-04-05

申请号：US10297304

申请日：2002-04-05

申请人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

发明人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

IPC分类号： G02B5/00 ,  G02B27/28 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/139 ,  H04N5/225 ,  H04N5/238

CPC分类号： G02F1/13725 ,  G02B5/005 ,  G02B27/281 ,  G02F1/13306 ,  G02F1/133509 ,  H04N5/2254 ,  H04N5/238

摘要： A light control device and an imaging device suitable for the effective and stabilized driving of a Guest-Host type liquid crystal element. A light control device (23) which is provided with a light controlling GH cell (12) and a UV cut filter (65) provided on the light incident side of the GH cell (12), and which is therefore reduced significantly in the quantity of ultraviolet ray applied to the GH cell (12), thereby preventing the photodecompositon or photodegradation of materials constituting a liquid crystal layer in the GH cell (12); and an imaging device such as a CCD camera (50) having this light control device disposed on the optical path thereof.

摘要翻译： 一种适用于宾客型液晶元件的有效和稳定驱动的光控制装置和成像装置。 一种光控制装置（23），其设置有设置在GH电池（12）的光入射侧的光控GH电池（12）和紫外线截止滤光器（65），并且因此大量减少 施加到GH电池（12）上的紫外线，从而防止在GH电池（12）中构成液晶层的材料的光分解或光降解。 以及诸如具有设置在其光路上的该光控制装置的CCD照相机（50）的成像装置。

公开(公告)号：US07057683B2

公开(公告)日：2006-06-06

申请号：US10946282

申请日：2004-09-21

申请人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

发明人： Toru Udaka ,  Keiichi Nito ,  Toshiharu Yanagida ,  Masaru Kawabata

IPC分类号： G02F1/1335

CPC分类号： G02F1/13725 ,  G02B5/005 ,  G02B27/281 ,  G02F1/13306 ,  G02F1/133509 ,  H04N5/2254 ,  H04N5/238

摘要： A light control device and an imaging device suitable for the effective and stabilized driving of a Guest-Host type liquid crystal element. A light control device which is provided with a light controlling GH cell and a UV cut filter provided on the light incident side of the GH cell and which is therefore reduced significantly in the quantity of ultraviolet ray applied to the GH cell, thereby preventing the photodecomposition or photodegradation of materials constituting a liquid crystal layer in the GH cell; and an imaging device such as a CCD camera having this light control device disposed on the optical path thereof.

摘要翻译： 一种适用于宾客型液晶元件的有效和稳定驱动的光控制装置和成像装置。 一种光控装置，其设置有控制GH电池和设置在GH电池的光入射侧的紫外线截止滤波器，因此能够显着减少施加到GH电池的紫外线的量，从而防止光分解 或在GH细胞中构成液晶层的材料的光降解; 以及诸如具有设置在其光路上的该光控制装置的CCD照相机的成像装置。

公开(公告)号：US06720742B2

公开(公告)日：2004-04-13

申请号：US09974565

申请日：2001-10-10

申请人： Toshiharu Yanagida ,  Toru Udaka ,  Masaru Kawabata ,  Kazuhiro Tanaka

发明人： Toshiharu Yanagida ,  Toru Udaka ,  Masaru Kawabata ,  Kazuhiro Tanaka

IPC分类号： G05F100

CPC分类号： G02F1/13306 ,  G02F1/13725

摘要： A light control device comprises a liquid crystal cell 12, and a pulse control unit 62 or 64 wherein when a transmittance of light transmitted from said liquid crystal element is changed from an actual light transmittance to an intended light transmittance, the pulse control unit is able to insert beforehand a drive pulse for control corresponding to a minimum light transmittance or a maximum light transmittance, at least, prior to application of a drive pulse corresponding to the intended light transmittance. A method of driving the light control device is also described wherein the light control device is driven by use of the drive pulse for control, along with a pickup device wherein the light control device is arranged in a light path of a pickup system.

摘要翻译： 光控制装置包括液晶单元12和脉冲控制单元62或64，其中当从所述液晶元件透射的光的透射率从实际透光率改变为预期透光率时，脉冲控制单元能够 至少在施加与预期透光率相对应的驱动脉冲之前，预先插入对应于最小透光率或最大透光率的用于控制的驱动脉冲。 还描述了一种驱动光控制装置的方法，其中通过使用用于控制的驱动脉冲来驱动光控制装置，以及其中光控制装置布置在拾取系统的光路中的拾取装置。

公开(公告)号：US07558000B2

公开(公告)日：2009-07-07

申请号：US11365586

申请日：2006-03-02

申请人： Keita Tanaka ,  Toru Udaka ,  Yukihiro Sano

发明人： Keita Tanaka ,  Toru Udaka ,  Yukihiro Sano

IPC分类号： G02B1/06 ,  G02B26/00

CPC分类号： G02B26/005 ,  G02B3/14

摘要： An optical device includes: a sealed container having edge walls facing each other in a thickness direction of the container and a side wall connecting both of the edge walls; a first liquid with polarity or electrical conductivity and sealed within the container; a second liquid that is sealed within the container and does not mixed with the first liquid; and a voltage applying unit for applying a voltage across the first liquid. The first and second liquid have equal specific gravity, and transmissivity of the first liquid is lower than the transmissivity of the second liquid. An interface between the first liquid and the second liquid changes shape in response to a voltage applied by the voltage applying unit. The first liquid is formed so as to have equal specific gravity to the second liquid by mixing three or more kinds of liquids each having a different specific gravity.

摘要翻译： 光学装置包括：密封容器，其具有沿着容器的厚度方向彼此面对的边缘壁和连接两个边缘壁的侧壁; 具有极性或导电性的第一液体并密封在容器内; 第二液体，密封在容器内并且不与第一液体混合; 以及施加电压跨过第一液体的电压施加单元。 第一液体和第二液体具有相等的比重，第一液体的透过率低于第二液体的透过率。 第一液体和第二液体之间的界面响应于由施加电压施加的电压而改变形状。 通过混合三种以上各自具有不同比重的液体，第一液体被形成为具有与第二液体相等的比重。

公开(公告)号：US06804037B1

公开(公告)日：2004-10-12

申请号：US09711651

申请日：2000-11-13

申请人： Keiichi Nito ,  Toru Udaka

发明人： Keiichi Nito ,  Toru Udaka

IPC分类号： G02F107

CPC分类号： G02F1/13725 ,  G02F1/13318 ,  G02F1/133528 ,  G02F2001/13312 ,  G02F2001/13712 ,  G09G2320/041

摘要： Disclosed are a light modulation apparatus including a liquid crystal device; and a polarizing plate disposed in an optical path of light made incident on said liquid crystal device; wherein said liquid crystal device is of a guest-host type using a negative type liquid crystal as a host material, an image pickup apparatus using the light modulation apparatus, and methods of driving the light modulation apparatus and image pickup apparatus.

摘要翻译： 公开了一种包括液晶装置的光调制装置; 以及设置在入射在所述液晶装置上的光的光路中的偏振片; 其中所述液晶装置是使用负型液晶作为主体材料的客体主体型，使用该光调制装置的图像拾取装置，以及驱动光调制装置和图像拾取装置的方法。

公开(公告)号：US06261478B1

公开(公告)日：2001-07-17

申请号：US09146961

申请日：1998-09-04

申请人： Toru Udaka

发明人： Toru Udaka

IPC分类号： G02F115

CPC分类号： G02F1/1506

摘要： A power-saving, highly-reversible optical device is provided. The transmittance through the device is well controlled within a visible ray range. The device has good spectral characteristics while shielded from light, and the electrodes in the device are prevented from being in overpotential condition. The device has a long life, and is protected from being discolored and deteriorated in cycle use. Also, an electrolytic solution to be used in the device is provided. The optical device comprises a solution as so put between working electrodes and a counter electrode that driving control of these electrodes brings about deposition or dissolution of silver. In this, the solution is prepared by dissolving a silver salt in a solvent, to which are added a supporting salt of an alkali metal halide such as LiBr or the like, and an alkanolamine, and optionally coumarin and a mercaptoalkylimidazole.

摘要翻译： 提供省电，高度可逆的光学器件。 通过器件的透射率在可见光线范围内良好控制。 该器件具有良好的光谱特性，同时屏蔽光，并且可防止器件中的电极处于过电压状态。 该设备使用寿命长，防止周期使用变色和恶化。 此外，提供了用于该器件的电解液。光学器件包括如此放置在工作电极和对电极之间的溶液，驱动这些电极的控制引起银的沉积或溶解。 在此，通过将银盐溶解在溶剂中来制备溶液，向其中加入碱金属卤化物如LiBr等的支持盐和链烷醇胺，以及任选的香豆素和巯基烷基咪唑。

公开(公告)号：US6045725A

公开(公告)日：2000-04-04

申请号：US924599

申请日：1997-09-04

申请人： Toru Udaka ,  Hideharu Miyagaki

发明人： Toru Udaka ,  Hideharu Miyagaki

IPC分类号： G02F1/17 ,  G02B5/24 ,  G02F1/15 ,  G02B5/23 ,  G02F1/153

CPC分类号： G02F1/1506 ,  G02B5/24

摘要： An optical device is provided as an optical filter including a pair of substrates at least one of which is transparent, at least one transparent electrode disposed on one side of the transparent substrate, at least one counter electrode, a spacer provided between a pair of the substrates at peripheries thereof, and an RED solution as a filtering material provided in a space between a pair of the substrates. The RED solution includes a silver salt and a mixed solvent, preferably DMSO and another solvent, for dissolving the silver salt. The transparent electrodes and the counter electrode are driven by applying a voltage thereto, and the silver salt is reversibly deposited and dissolved by controlling the voltage. The RED solution is brought to be colored and to be colorless, respectively, so that an amount of light passing through the device may be adjusted.

摘要翻译： 提供一种光学器件作为滤光器，其包括一对基板，其中至少一个是透明的，设置在透明基板的一侧上的至少一个透明电极，至少一个对电极，设置在一对基板之间的间隔件 在其周围的基板和设置在一对基板之间的空间中的作为过滤材料的RED溶液。 RED溶液包括用于溶解银盐的银盐和混合溶剂，优选DMSO和另一种溶剂。 通过向其施加电压来驱动透明电极和对电极，并且通过控制电压可逆地沉积和溶解银盐。 RED溶液分别被着色并且是无色的，使得可以调节通过该装置的光量。