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1. 发明申请

US20050275759A1 Rear-projection type imaging apparatus 审中-公开
标题翻译：背投型摄像装置
公开(公告)号：US20050275759A1
公开(公告)日：2005-12-15
申请号：US10935147
申请日：2004-09-08
申请人： Takashi Itohiya
发明人： Takashi Itohiya
IPC分类号： G03B21/10 , H04N5/64 , H04N5/74
CPC分类号： H04N9/3141
摘要： A rear-projection type imaging apparatus, for example, rear-projection television set, capable of projecting, and displaying, an enlarged image onto a screen from the rearward thereof is provided. The rear-projection television set (100) comprises a housing (114), a television control unit (signal processing unit) (128), an image display element (120), a projection lens system (130), an image projecting mirror (140), a screen (150) onto which an enlarged image is projected from the backward thereof. The projection lens system (130) is comprised of a rear-group optical system (132), an intermediate mirror (132) and a front-group optical system (136). Lens barrels (146, 142) associated with the front-group and rear group optical systems (136,132), respectively, are fastened to each other by fastening means.
摘要翻译：提供了一种后投影型成像装置，例如背投电视机，其能够从其后方将放大的图像投影并显示在屏幕上。背投电视机（100）包括壳体（114），电视控制单元（信号处理单元）（128），图像显示元件（120），投影透镜系统（130），图像投影镜 140），从其后方投影放大图像的画面（150）。投影透镜系统（130）由后组光学系统（132），中间反射镜（132）和前组光学系统（136）组成。与前组和后组光学系统（136,132）相关联的镜筒（146,142）分别通过紧固装置彼此紧固。

2. 发明申请

US20060007556A1 Projector optical device 审中-公开
标题翻译：投影机光学装置
公开(公告)号：US20060007556A1
公开(公告)日：2006-01-12
申请号：US11168879
申请日：2005-06-29
申请人： Taketoshi Okajima , Takashi Itohiya
发明人： Taketoshi Okajima , Takashi Itohiya
IPC分类号： G02B3/00
CPC分类号： G02B7/028 , G02B13/16
摘要： An object of the present invention is to provide a projector optical device in which both of an image forming section and a screen are held stationary in their fixed locations and an object image distance is constant, wherein an effect from a variation of optical characteristics caused by the heat, such as a variation of focal distance of a lens in a projection lens system located in the vicinity of a light source, can be eliminated and thereby a clear image in the initial focused condition can be maintained on the screen. Provided is A projector optical device including a retro-focus projection lens system characterized in that at least one or more lenses of a group of convex lenses in said retro-focus projection lens system located in an light source side is supported by a compensation member capable of expanding or contracting in the direction of an optical axis in response to a temperature change, wherein an object image distance being variated by a variation of a focal distance of said group of convex lenses caused by a temperature change is compensated for by difference of the expansion or the contraction of said compensation members resultant from the temperature change.
摘要翻译：本发明的目的是提供一种投影仪光学装置，其中图像形成部分和屏幕两者在它们的固定位置保持静止并且物体图像距离恒定，其中由光学特性引起的光学特性的变化的影响可以消除诸如位于光源附近的投影透镜系统中的透镜的焦距的变化的热量，从而可以在屏幕上保持初始聚焦状态下的清晰图像。本发明提供一种投影仪光学装置，其具有回射投影透镜系统，其特征在于，位于光源侧的所述复焦投影透镜系统中的一组凸透镜的至少一个以上的透镜由能够响应于温度变化而在光轴的方向上扩展或收缩，其中通过由温度变化引起的所述凸透镜组的焦距的变化而变化的物体图像距离由由温度变化引起的所述补偿部件的膨胀或收缩。

3. 发明申请

US20060001986A1 Optical device 审中-公开
标题翻译：光学装置
公开(公告)号：US20060001986A1
公开(公告)日：2006-01-05
申请号：US11168878
申请日：2005-06-29
申请人： Takashi Itohiya
发明人： Takashi Itohiya
IPC分类号： G02B7/02
CPC分类号： G02B7/023
摘要： An optical device according to the present invention is easy to finely adjust at least part of the lens optics and stable to secure the fine adjustment without decentering the part of the lens optics. The optical device includes a fixed lens barrel and a lens frame capable of sliding linearly along the optical axis and circumferentially about the same in relation with the fixed lens barrel where the fixed lens barrel and the slidable lens frame are mated with each other in cam engagement, and the fixed lens barrel is rotated relative to the slidable lens frame so as to move the slidable lens frame. While a fixing screw is fitted in the slidable lens frame, two elements engaged with the fixing screw pinch the fixed lens barrel between them so that the fixing screw is secured to the fixed lens barrel and that the slidable lens frame is secured to the fixed lens barrel.
摘要翻译：根据本发明的光学装置易于精细地调节透镜光学元件的至少一部分并且稳定以确保微调而不偏心透镜光学元件的一部分。该光学装置包括固定透镜镜筒和透镜框架，该透镜镜筒和透镜框架能够相对于固定透镜镜筒沿着光轴线性地周向地滑动，其中固定透镜镜筒和可滑动透镜框架以凸轮接合方式彼此配合并且固定透镜镜筒相对于可滑动透镜框架旋转以便移动可滑动的透镜框架。当固定螺钉装配在可滑动的透镜框架中时，与固定螺钉啮合的两个元件将固定的透镜筒夹紧在它们之间，使得固定螺钉固定到固定的镜筒上，并且可滑动的透镜框架被固定到固定的透镜桶。

4. 发明申请

US20050013600A1 CAMERA DEVICE HAVING POSTERIOR FILTER 失效
标题翻译：具有前置滤镜的相机设备
公开(公告)号：US20050013600A1
公开(公告)日：2005-01-20
申请号：US10740592
申请日：2003-12-22
申请人： Katsuhiko Nishikawa , Takashi Itohiya
发明人： Katsuhiko Nishikawa , Takashi Itohiya
IPC分类号： G02B7/10 , G02B5/22 , G02B7/02 , G02B7/04 , G03B3/00 , G03B11/00 , G03B13/32 , H04N5/225
CPC分类号： G03B13/32
摘要： The present invention is directed to a camera device having a posterior filter which is of compact design and facilitates attachment and detachment of optical elements such as a posterior filter. The camera device comprises a fixed lens barrel having its inner surface formed with a first helicoidal member, an active focusing barrel, for manual adjustment, rotatably disposed about an optical axis over an outer surface of the fixed lens barrel, a revolving barrel rotatably disposed about the optical axis over an inner surface of the fixed lens barrel and having its outer surface formed with a second helicoidal member, the second helicoidal member being cooperatively mated with the first helicoidal member, a coupling element communicating rotary motion of the active focusing barrel to the revolving barrel without conveying linear motion along the optical axis, a holder of a trailing lens(es) fixed to the revolving barrel in unit, a posterior filter holder receiving the linear motion along the optical axis from either the revolving barrel or the trailing lens holder but not the rotary motion from the same and detachably holding the posterior filter, and a rotary motion restriction member built in the fixed lens barrel for impeding the rotary motion of the trailing lens holder.
摘要翻译：本发明涉及具有紧凑设计的后过滤器并且便于诸如后过滤器之类的光学元件的附接和拆卸的照相机装置。照相机装置包括固定透镜镜筒，其内表面形成有第一螺旋形构件，用于手动调节的主动聚焦镜筒，可旋转地围绕固定镜筒的外表面上的光轴设置;可旋转地设置在旋转镜筒周围的旋转镜筒所述光轴在所述固定透镜镜筒的内表面上并且其外表面形成有第二螺旋构件，所述第二螺旋构件与所述第一螺旋构件配合地配合;联接元件，其将所述主动聚焦筒的旋转运动传递到旋转筒而不沿着光轴传送线性运动，固定在单元中的后视镜的保持器，后过滤器保持器沿着光轴从旋转筒或后视镜保持器接收线性运动而不是来自相同的可拆卸地保持后过滤器的旋转运动和旋转运动限制内置在固定镜筒中的构件，用于阻止后视镜保持器的旋转运动。

5. 发明授权

US06839512B1 Camera device having posterior filter 失效
标题翻译：具有后置过滤器的相机装置
公开(公告)号：US06839512B1
公开(公告)日：2005-01-04
申请号：US10740592
申请日：2003-12-22
申请人： Katsuhiko Nishikawa , Takashi Itohiya
发明人： Katsuhiko Nishikawa , Takashi Itohiya
IPC分类号： G02B7/10 , G02B5/22 , G02B7/02 , G02B7/04 , G03B3/00 , G03B11/00 , G03B13/32 , H04N5/225
CPC分类号： G03B13/32
摘要： The present invention is directed to a camera device having a posterior filter which is of compact design and facilitates attachment and detachment of optical elements such as a posterior filter. The camera device comprises a fixed lens barrel having its inner surface formed with a first helicoidal member, an active focusing barrel, for manual adjustment, rotatably disposed about an optical axis over an outer surface of the fixed lens barrel, a revolving barrel rotatably disposed about the optical axis over an inner surface of the fixed lens barrel and having its outer surface formed with a second helicoidal member, the second helicoidal member being cooperatively mated with the first helicoidal member, a coupling element communicating rotary motion of the active focusing barrel to the revolving barrel without conveying linear motion along the optical axis, a holder of a trailing lens(es) fixed to the revolving barrel in unit, a posterior filter holder receiving the linear motion along the optical axis from either the revolving barrel or the trailing lens holder but not the rotary motion from the same and detachably holding the posterior filter, and a rotary motion restriction member built in the fixed lens barrel for impeding the rotary motion of the trailing lens holder.
摘要翻译：本发明涉及具有紧凑设计的后过滤器并且便于诸如后过滤器之类的光学元件的附接和拆卸的照相机装置。照相机装置包括固定透镜镜筒，其内表面形成有第一螺旋形构件，用于手动调节的主动聚焦镜筒，可旋转地围绕固定镜筒的外表面上的光轴设置;可旋转地设置在旋转镜筒周围的旋转镜筒所述光轴在所述固定透镜镜筒的内表面上并且其外表面形成有第二螺旋构件，所述第二螺旋构件与所述第一螺旋构件配合地配合;联接元件，其将所述主动聚焦筒的旋转运动传递到旋转筒而不沿着光轴传送线性运动，固定在单元中的后视镜的保持器，后过滤器保持器沿着光轴从旋转筒或后视镜保持器接收线性运动而不是来自相同的可拆卸地保持后过滤器的旋转运动和旋转运动限制内置在固定镜筒中的构件，用于阻止后视镜保持器的旋转运动。

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