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公开(公告)号：US4828383A
公开(公告)日：1989-05-09
申请号：US928451
申请日：1986-11-10
申请人： Keiji Kunishige , Hirofumi Tsuchida
发明人： Keiji Kunishige , Hirofumi Tsuchida
CPC分类号： G01S7/4811 , G02B7/32
摘要： A range-finding optical system comprising a light emitting element, a light projecting lens located in front of the light emitting element and serving to project the light emitted from the light emitting element onto an object, a light receiving element, a light receiving lens located in front of the light receiving element and serving to converge the light, which is emitted from the light emitting element and reflected by the object, onto the light receiving element, a member for interconnecting the light projecting lens and light receiving lens and for defining the distance therebetween, and a member for interconnecting the light emitting element and light receiving element and for defining the distance therebetween, the range-finding optical system being arranged that the displacement of the focus point of the photographic lens system to be caused by temperature variation is easily compensated by means of the difference between the coefficient of thermal linear expansion of the member for interconnecting the light projecting lens and light receiving lens and the coefficient of thermal linear expansion of the member for interconnecting the light emitting element and light receiving element without additionally adopting a particular member.
摘要翻译： 一种测距光学系统，包括发光元件，位于发光元件前方的投光透镜，用于将从发光元件发射的光投射到物体上，光接收元件，位于 在光接收元件的前面并且用于会聚从发光元件发射并被物体反射的光到光接收元件上，用于互连光投影透镜和光接收透镜的元件，并用于限定 距离，以及用于互连发光元件和光接收元件并且用于限定它们之间的距离的构件，测距光学系统被布置为使得由温度变化引起的摄影镜头系统的焦点的位移为 通过膜的热线膨胀系数之间的差异容易地补偿 用于将光投射透镜和光接收透镜互连，并且用于互连发光元件和光接收元件的构件的热线性膨胀系数，而不额外地采用特定构件。
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公开(公告)号：US07604423B2
公开(公告)日：2009-10-20
申请号：US11903475
申请日：2007-09-21
摘要： An interchangeable-lens camera including a camera body on which a lens unit is capable to mount. The camera body includes a lens mounting unit which is provided to the camera body and on which the lens unit is capable to mount at least one dummy mounting unit which is provided to the camera body and on which a device is capable to mount under the same lens mounting system as the lens mounting unit, and a processing unit for reading information about the lens unit mounted to the lens mounting unit; and the processing unit for reading information about the device mounted to the dummy mounting unit.
摘要翻译： 一种可互换镜头相机，包括可在其上安装透镜单元的照相机主体。 相机主体包括一个透镜安装单元，该透镜安装单元设置在照相机主体上，透镜单元能够安装至少一个虚拟安装单元，该虚拟安装单元设置在相机主体上，并且可在其上安装设备 透镜安装系统作为透镜安装单元，以及处理单元，用于读取关于安装到透镜安装单元的透镜单元的信息; 以及用于读取关于安装到虚拟安装单元的装置的信息的处理单元。
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公开(公告)号：US20080075450A1
公开(公告)日：2008-03-27
申请号：US11903148
申请日：2007-09-19
IPC分类号： G03G15/00
CPC分类号： G03B17/12
摘要： There is provided an image taking device with removable optical unit, with which it is possible to operate the power supply of the image taking device body without operating a power switch, and operation of the power supply of the image taking device body is made easy. The image taking device with removable optical element is provided with an image taking device body, a lens unit (optical unit) that is removable with respect to the image taking device body, an attachment detection unit for detecting attachment of the lens unit to the image taking device body, and a system controller (control unit) for turning a power supply of the image taking device body on upon detection of attachment of the lens unit to the image taking device body by the attachment detection unit. The system controller is configured to turn off the power supply of the image taking device body in a state where attachment of the lens unit to the image taking device body is not detected by the attachment detection unit.
摘要翻译： 提供了具有可移动光学单元的图像摄取装置，可以在不操作电源开关的情况下操作摄像装置主体的电源，并且使得摄像装置主体的电源的操作变得容易。 具有可移动光学元件的摄像装置设置有摄像装置主体，相对于摄像装置主体可拆卸的镜头单元（光学单元），用于检测透镜单元与图像的附着的附件检测单元 在通过附着检测单元检测到透镜单元附着到摄像装置主体时，用于转动摄像装置主体的电源的系统控制器（控制单元）。 系统控制器被配置为在附着检测单元未检测到透镜单元附着到摄像装置主体的状态下关闭摄像装置主体的电源。
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54.发明授权Exhaust gas purification device for an engine and A/F ratio control for early activating a NOx trapping catalyst 有权用于发动机的废气净化装置和用于早期激活NOx捕集催化剂的A / F比率控制公开(公告)号：US06516612B1
公开(公告)日：2003-02-11
申请号：US09495938
申请日：2000-02-02
申请人： Tarou Yokoi , Hirofumi Tsuchida , Keiji Okada , Kouji Ishihara
发明人： Tarou Yokoi , Hirofumi Tsuchida , Keiji Okada , Kouji Ishihara
IPC分类号： F01N310
CPC分类号： F02D41/0082 , B01D53/9431 , B01D53/9495 , F01N3/0814 , F01N3/0842 , F01N3/0864 , F01N13/009 , F01N13/011 , F02D41/0275 , F02D41/405 , Y02T10/24 , Y02T10/44
摘要： An exhaust gas purification device including three-way catalysts connected to engine cylinder groups and arranged in parallel, and a NOx trapping catalyst connected with the three-way catalysts downstream thereof. A controller controls fuel injection for making an A/F ratio of exhaust gas flowing into one of the three-way catalysts rich relative to a stoichiometric A/F ratio when it is required to reduce the NOx trapped by the NOx trapping catalyst.
摘要翻译： 一种排气净化装置，其包括与发动机气缸组并联并排配置的三元催化剂和与其下游的三元催化剂连接的NOx捕集催化剂。 控制燃料喷射以使需要减少由NOx捕集催化剂捕获的NO x时相对于化学计量A / F比而使流入三种催化剂之一的废气的A / F比变得丰富。
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55.发明授权Lens group zoom lens system, and display device having phototaking function 有权镜头组变焦镜头系统以及具有拍摄功能的显示装置公开(公告)号：US06362925B1
公开(公告)日：2002-03-26
申请号：US09494652
申请日：2000-01-31
申请人： Tohru Nakamura , Hirofumi Tsuchida
发明人： Tohru Nakamura , Hirofumi Tsuchida
IPC分类号： G02B1514
CPC分类号： G02B15/173
摘要： The invention relates to a zoom lens system of three-group construction, one lens for each group, which is less susceptible to aberration variations even upon zooming and can achieve entire-length reductions, large lens aperture and high zoom ratio. The zoom lens system comprises, in order from an object side thereof, a first lens group G1 consisting of one single lens formed of a homogeneous medium and having positive refracting power, a second lens group G2 consisting of one single lens formed of a homogeneous medium and having negative refracting power, and a third lens group G3 consisting of one single lens formed of a homogeneous medium and having positive refracting power. For zooming from a wide-angle end to a telephoto end of the zoom lens system, at least the second lens group G2 moves from the object side toward an image side of the zoom lens system.
摘要翻译： 本发明涉及三组构造的变焦透镜系统，每组一个透镜，即使在变焦时也不易受像差变化的影响，并且可以实现全长缩小，大透镜孔径和高变焦比。 变焦透镜系统从其物体侧依次包括由均匀介质形成的具有正折射力的单个透镜构成的第一透镜组G1，由均匀介质形成的一个单透镜构成的第二透镜组G2 并且具有负折射力，以及由均匀介质形成且具有正折射率的一个单透镜构成的第三透镜组G3。 为了从变焦透镜系统的广角端到远摄端放大，至少第二透镜组G2从物体侧向变焦透镜系统的像侧移动。
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56.发明授权公开(公告)号：US06359738B1
公开(公告)日：2002-03-19
申请号：US09494653
申请日：2000-01-31
申请人： Tohru Nakamura , Hirofumi Tsuchida
发明人： Tohru Nakamura , Hirofumi Tsuchida
IPC分类号： G02B1514
CPC分类号： G02B13/003 , G02B13/006 , G02B13/0065 , G02B13/009 , G02B15/177
摘要： The invention relates to a zoom lens system of two-group construction, one lens for each group, which is less susceptible to aberration variations even upon zooming and can be much more increased in terms of lens aperture and zoom ratio. The zoom lens system of two-group construction comprises, in order from an object side thereof, a first lens group G1 having negative refracting power and a second lens group G2 having positive refracting power and in which a focal length thereof is varied by moving both the lenses while an optical axis separation therebetween is varied. The first lens group G1 consists of one concave lens having a strong concave surface directed toward an image plane side of the zoom lens system and formed of a homogeneous medium, and the second lens group G2 consists of one convex lens formed of a homogeneous medium. A stop S is located between the first lens group G1 and the second lens group G2. The first lens group G1 moves largely from the object side toward an image side of the zoom lens system while the second lens group G2 moves from the image side toward the object side during zooming from a wide-angle end to a telephoto end of the zoom lens system.
摘要翻译： 本发明涉及两组结构的变焦透镜系统，每组一个透镜，即使在变焦时也不易受像差变化的影响，并且在透镜孔径和变焦比方面可以更多地增加。 两组结构的变焦透镜系统包括从物体侧起依次具有负折射力的第一透镜组G1和具有正折射光焦度的第二透镜组G2，并且其焦距通过两者移动而变化 透镜之间的光轴分离是变化的。 第一透镜组G1由具有朝向变焦透镜系统的像面侧的强凹面的一个凹透镜构成，由均匀介质形成，第二透镜组G2由均匀介质形成的一个凸透镜组成。 停止点S位于第一透镜组G1和第二透镜组G2之间。 第一透镜组G1在变焦透镜系统的广角端到望远端的变焦期间，从第二透镜组G2朝向物侧移动，朝向物体侧大幅移动，同时第二透镜组G2从图像侧向物体侧移动 镜头系统
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公开(公告)号：US6163411A
公开(公告)日：2000-12-19
申请号：US97387
申请日：1998-06-16
申请人： Hirofumi Tsuchida
发明人： Hirofumi Tsuchida
CPC分类号： G02B15/161 , G02B3/0087
摘要： A lens system comprising, in order from the object side, a first lens unit having a positive refractive power and a second lens unit having a negative refractive power, configured to change a focal length thereof by varying an airspace reserved between the first and second lens units, and suited for use in electronic image pickup apparatus. The first lens unit is composed only of a single homogeneous lens element and the second lens unit is composed of a single radial type gradient index lens element which has a positive power of medium.
摘要翻译： 一种透镜系统，其从物体侧依次包括具有正折光力的第一透镜单元和具有负折射光焦度的第二透镜单元，其被配置为通过改变在第一和第二透镜之间预留的空间来改变其焦距 单元，并且适用于电子摄像装置。 第一透镜单元仅由单个均匀透镜元件组成，并且第二透镜单元由具有正的功率的介质的单个径向型梯度折射率透镜元件组成。
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公开(公告)号：US5235464A
公开(公告)日：1993-08-10
申请号：US792659
申请日：1991-11-15
申请人： Hirofumi Tsuchida
发明人： Hirofumi Tsuchida
CPC分类号： G02B27/4211 , G02B27/42 , G02B3/0087
摘要： A lens system comprising a radial type graded refractive index lens element and a diffraction type lens element so that the refractive power of the radial type graded refractive index lens element is imparted to the diffraction type lens element, thereby facilitating manufacturing of the graded refractive index lens element and favorably correcting aberrations including chromatic aberration.
摘要翻译： 一种透镜系统，包括径向型渐变折射率透镜元件和衍射型透镜元件，使得径向型渐变折射率透镜元件的屈光力被赋予衍射型透镜元件，从而有助于制造渐变折射率透镜 并且有利地校正包括色差的像差。
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公开(公告)号：US5184251A
公开(公告)日：1993-02-02
申请号：US697442
申请日：1991-05-09
申请人： Hirofumi Tsuchida , Norihiko Aoki
发明人： Hirofumi Tsuchida , Norihiko Aoki
IPC分类号： G02B9/00 , G02B3/00 , G02B9/58 , G02B15/16 , G02B15/177
CPC分类号： G02B3/0087 , G02B15/177
摘要： A vari-focal lens system including, in the order from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, an aperture stop, a third lens unit having a positive refractive power and a fourth lens unit having a negative refractive power; and using at least one radial GRIN lens element on each side of the aperture stop. This vari-focal lens system has only a very small number of lens elements and had favorably corrected aberrations.
摘要翻译： 一种变焦透镜系统，包括从物体侧开始的具有负屈光力的第一透镜单元，具有正屈光力的第二透镜单元，孔径光阑，具有正折光力的第三透镜单元和 具有负折光力的第四透镜单元; 并且在孔径光阑的每一侧上使用至少一个径向GRIN透镜元件。 该变焦透镜系统仅具有非常少数量的透镜元件并且具有良好的校正像差。
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公开(公告)号：US5157550A
公开(公告)日：1992-10-20
申请号：US603327
申请日：1990-10-25
IPC分类号： G02B15/177
CPC分类号： G02B15/177
摘要： A vari-focal lens system comprising, in the order from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a positive refractive power and an aperture stop arranged on the image side of said third lens unit, using at least one radial GRIN lens, axial GRIN lens or aspherical surface, and having a high vari-focal ratio and a wide field angle at the wide position.
摘要翻译： 一种变焦透镜系统，其包括从物体侧开始具有负折光力的第一透镜单元，具有正屈光力的第二透镜单元，具有正折光力的第三透镜单元，第四透镜单元 具有正折射力和孔径光阑，其布置在所述第三透镜单元的像侧上，使用至少一个径向GRIN透镜，轴向GRIN透镜或非球面，并且在所述第三透镜单元的像侧上具有高变焦比和宽场角 宽阔的位置
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