专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US5568321A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US5568321A
公开(公告)日：1996-10-22
申请号：US104943
申请日：1993-08-12
申请人： Hideki Ogawa , Tsunefumi Tanaka , Takeshi Koyama
发明人： Hideki Ogawa , Tsunefumi Tanaka , Takeshi Koyama
IPC分类号： G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens of four-unit construction which comprises, in succession from the object side, a first lens unit of positive refractive power, a second lens unit of negative refractive power, a third lens unit of positive refractive power and a fourth lens unit of positive refractive power. During the zooming from the short focus side to the long focus side, the first lens unit and the fourth lens unit are moved toward the object side, the second lens unit is moved so that the air gap thereof with respect to the first lens unit may monotonously increase, and the third lens unit is moved so that the air gap thereof with respect to the second lens unit may monotonously decrease. The fourth lens unit is comprised, in succession from the object side, of a first positive lens having its convex surface of sharp curvature facing the image plane side, and a cemented lens comprising a meniscus positive lens having its concave surface facing the object side and a negative lens having its concave surface of sharp curvature facing the object side, the meniscus positive lens and the negative lens being cemented together.
摘要翻译：一种四单元结构的变焦透镜，包括从物体侧连续的具有正屈光力的第一透镜单元，负折光力的第二透镜单元，正折光力的第三透镜单元和第四透镜单元，正屈光力。在从短焦侧到长焦侧的变焦期间，第一透镜单元和第四透镜单元朝向物体侧移动，第二透镜单元移动，使得其相对于第一透镜单元的气隙可以单调增加，并且第三透镜单元被移动，使得其相对于第二透镜单元的气隙可以单调减小。第四透镜单元从物体侧连续地包括具有面向像面侧的锐曲面的凸面的第一正透镜，以及包括其凹面朝向物侧的弯月面正透镜的胶合透镜，具有面向物体侧的锐曲面的凹面的负透镜，弯月面正透镜和负透镜粘合在一起。

32. 发明授权

US4716284A Photographic optical system having enhanced spectral transmittance characteristics 失效
标题翻译：具有增强的光谱透射特性的照相光学系统
公开(公告)号：US4716284A
公开(公告)日：1987-12-29
申请号：US709447
申请日：1985-03-08
申请人： Tsunefumi Tanaka
发明人： Tsunefumi Tanaka
IPC分类号： G03B13/36 , G02B7/28 , G02B7/32 , G03B3/00 , G03B3/10
CPC分类号： G02B7/282
摘要： The disclosed photographic optical system with a focus detector is constructed with an objective lens portion and an optical path splitting surface arranged on the image side thereof. An optical element and an image receiver are successively arranged on one of the split optical paths. A beam source for projecting an object sensing beam in the infrared wavelength region, or a photo-sensor for sensing the reflection of the object sensing beam from an object is arranged on the other split optical path. The spectral transmittance characteristic of the objective lens portion is different from that of the optical element, and is constructed to pass the wavelength region of the object sensing beam. The superimposed characteristic of the spectral transmittance characteristic of the objective lens portion and the spectral transmittance characteristic of the optical element are matched with the sensitivity characteristic of the image receiver.
摘要翻译：所公开的具有焦点检测器的照相光学系统由物镜部分和布置在其像侧上的光路分离表面构成。光学元件和图像接收器被连续布置在一个分离光路上。用于在红外波长区域中投影物体感测光束的光束源或用于感测物体的物体感测光束的反射的光电传感器布置在另一个分割光路上。物镜部分的光谱透射率特性与光学元件的光谱透射特性不同，并被构造成通过物体感测光束的波长区域。物镜部分的光谱透射率特性和光学元件的光谱透射率特性的叠加特性与图像接收器的灵敏度特性相匹配。

33. 发明授权

US4695133A High range zoom lens 失效
标题翻译：高范围变焦镜头
公开(公告)号：US4695133A
公开(公告)日：1987-09-22
申请号：US717376
申请日：1985-03-29
申请人： Nozomu Kitagishi , Sadatoshi Takahashi , Keiji Ikemori , Kikuo Momiyama , Tsunefumi Tanaka
发明人： Nozomu Kitagishi , Sadatoshi Takahashi , Keiji Ikemori , Kikuo Momiyama , Tsunefumi Tanaka
IPC分类号： G02B15/20 , G02B15/173 , G02B15/16
CPC分类号： G02B15/173
摘要： The disclosed zoom lens includes, from front to rear, a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power, and a fourth lens unit. When zooming, the first and third lens units are axially moved independently of each other, the second lens unit remains stationary, and the fourth lens unit is axially moved but changes the direction of advance at an intermediate point in the zooming range.
摘要翻译：所公开的变焦镜头包括从前到后的正功率的第一透镜单元，负功率的第二透镜单元，正光焦度的第三透镜单元和第四透镜单元。当变焦时，第一透镜单元和第三透镜单元彼此独立地轴向移动，第二透镜单元保持静止，并且第四透镜单元轴向移动，但是在变焦范围的中间点改变前进方向。

34. 发明授权

US07457045B2 Zoom lens 有权
标题翻译：变焦镜头
公开(公告)号：US07457045B2
公开(公告)日：2008-11-25
申请号：US11969738
申请日：2008-01-04
申请人： Toyokatsu Fujisaki , Tsunefumi Tanaka
发明人： Toyokatsu Fujisaki , Tsunefumi Tanaka
IPC分类号： G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit of negative refractive power, a second lens unit of positive refractive power, and a third lens unit of positive refractive power. The first lens unit moves in a locus convex toward the image side and the second lens unit moves toward the object side during zooming from a wide-angle end to a telephoto end. The object side principal point position of the first lens unit is within the first lens unit. The movement locus of the image side principal point position of the first lens unit during zooming from the wide-angle end to the telephoto end intersects with the movement locus of the object side principal point position of the second lens unit during zooming from the wide-angle end to the telephoto end.
摘要翻译：变焦透镜从物体侧到像侧依次包括负折光力的第一透镜单元，正屈光力的第二透镜单元和正折光力的第三透镜单元。第一透镜单元在从广角端到望远端的变焦期间沿朝向图像侧凸起的轨迹移动，并且第二透镜单元朝向物侧移动。第一透镜单元的物体侧主点位置在第一透镜单元内。在从广角端到望远端的变焦期间，第一透镜单元的像侧主点位置的移动轨迹与第二透镜单元在从广角端到远摄端的变焦期间的物体侧主点位置的移动轨迹相交，角度端到远摄端。

35. 发明申请

US20080186588A1 ZOOM LENS 有权
标题翻译：变焦镜头
公开(公告)号：US20080186588A1
公开(公告)日：2008-08-07
申请号：US11969738
申请日：2008-01-04
申请人： Toyokatsu Fujisaki , Tsunefumi Tanaka
发明人： Toyokatsu Fujisaki , Tsunefumi Tanaka
IPC分类号： G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit of negative refractive power, a second lens unit of positive refractive power, and a third lens unit of positive refractive power. The first lens unit moves in a locus convex toward the image side and the second lens unit moves toward the object side during zooming from a wide-angle end to a telephoto end. The object side principal point position of the first lens unit is within the first lens unit. The movement locus of the image side principal point position of the first lens unit during zooming from the wide-angle end to the telephoto end intersects with the movement locus of the object side principal point position of the second lens unit during zooming from the wide-angle end to the telephoto end.
摘要翻译：变焦透镜从物体侧到像侧依次包括负折光力的第一透镜单元，正屈光力的第二透镜单元和正折光力的第三透镜单元。第一透镜单元在从广角端到远摄端的变焦期间沿朝向图像侧凸起的轨迹移动，并且第二透镜单元朝向物侧移动。第一透镜单元的物体侧主点位置在第一透镜单元内。在从广角端到望远端的变焦期间，第一透镜单元的像侧主点位置的移动轨迹与第二透镜单元的变焦期间的物体侧主点位置的移动轨迹相交，角度端到远摄端。

36. 发明申请

US20050078281A1 Projection optical system and a projection type image display apparatus 有权
标题翻译：投影光学系统和投影型图像显示装置
公开(公告)号：US20050078281A1
公开(公告)日：2005-04-14
申请号：US10964949
申请日：2004-10-14
申请人： Koshi Hatakeyama , Tsunefumi Tanaka
发明人： Koshi Hatakeyama , Tsunefumi Tanaka
IPC分类号： G02F1/13 , G02B15/14 , G02B17/08 , G03B21/14 , G03B21/28 , H04N17/00
CPC分类号： G02B17/0848 , G02B15/14 , G03B5/00 , G03B21/147 , G03B21/28
摘要： There is disclosed a projection optical system which is capable of moving a projected image within a predetermined region (effective projection region). The projection optical system, which projects an image of an object surface in the effective projection region of a predetermined image surface comprises two or more optical systems, among which a first optical system on the object surface side comprises a zoom portion which zooms the projected image. The projection optical system further comprises one or more rotatable members which rotate around the position of an exit pupil of the first optical system or its vicinity. In addition, by rotating the one or more rotatable members, the projected image is moved within the effective projection region.
摘要翻译：公开了能够在预定区域（有效投影区域）内移动投影图像的投影光学系统。在预定图像表面的有效投影区域中投影物体表面的图像的投影光学系统包括两个或更多个光学系统，其中物体表面侧上的第一光学系统包括缩放投影图像的变焦部分。投影光学系统还包括围绕第一光学系统或其附近的出射光瞳的位置旋转的一个或多个可旋转构件。此外，通过旋转一个或多个可旋转构件，投影图像在有效投影区域内移动。

37. 发明授权

US06636360B1 Reflecting type of zoom lens 失效
公开(公告)号：US06636360B1
公开(公告)日：2003-10-21
申请号：US09704751
申请日：2000-11-03
申请人： Tsunefumi Tanaka , Toshiya Kurihashi , Shigeo Ogura , Keisuke Araki , Makoto Sekita , Nobuhiro Takeda , Yoshihiro Uchino , Kenichi Kimura , Toshikazu Yanai , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
发明人： Tsunefumi Tanaka , Toshiya Kurihashi , Shigeo Ogura , Keisuke Araki , Makoto Sekita , Nobuhiro Takeda , Yoshihiro Uchino , Kenichi Kimura , Toshikazu Yanai , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
IPC分类号： G02B1514
CPC分类号： G02B17/0896 , G02B17/0663 , G02B17/0694 , G02B17/0848 , G02B17/086 , H04N5/2251 , H04N5/2253 , H04N5/2254
摘要： A reflecting type of zoom optical system comprises a plurality of optical elements each of which includes a transparent body and two refracting surfaces and a plurality of reflecting surfaces formed on the transparent body and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection by the plurality of reflecting surfaces, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from surface reflecting mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element. In the reflecting type of zoom optical system, an image of an object is formed via the plurality of optical elements and zooming is performed by causing at least two optical elements from among the plurality of optical elements to vary their relative positions.

38. 发明授权

US06301064B1 Optical apparatus 失效
标题翻译：光学仪器
公开(公告)号：US06301064B1
公开(公告)日：2001-10-09
申请号：US08917889
申请日：1997-08-27
申请人： Keisuke Araki , Tsunefumi Tanaka , Makoto Sekita , Kenichi Kimura , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
发明人： Keisuke Araki , Tsunefumi Tanaka , Makoto Sekita , Kenichi Kimura , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
IPC分类号： G02B504
CPC分类号： G02B17/086 , G02B15/14 , G02B17/0848 , G02B17/0896
摘要： An optical apparatus includes an optical unit including a light entrance surface, light reflecting surfaces and a light exit surface all of which are integrally formed of transparent material, and the optical unit has in its interior an internal refracting surface for refracting light. Since a light beam passes through the optical unit from the light entrance surface to the light exit surface via the internal refracting surface and the light reflecting surfaces along a bent optical path, the optical apparatus is reduced in size and improved in optical performance, particularly, well corrected in chromatic aberration. Another disclosed optical apparatus is arranged to achieve zooming by using a plurality of optical units each of which is similar to the aforesaid optical unit.
摘要翻译：光学装置包括光学单元，其包括光入射表面，光反射表面和光出射表面，所有这些都由透明材料整体形成，并且光学单元在其内部具有用于折射光的内部折射表面。由于光束通过光学单元从弯曲的光路经由内部折射表面和光反射表面从光入射表面通过光出射表面，所以光学装置的尺寸减小并且光学性能得到改善，良好的色差校正。另一公开的光学装置被布置成通过使用与上述光学单元类似的多个光学单元实现变焦。

39. 发明授权

US06292309B1 Reflecting type of zoom lens 有权
标题翻译：反射型变焦镜头
公开(公告)号：US06292309B1
公开(公告)日：2001-09-18
申请号：US09459861
申请日：1999-12-14
申请人： Makoto Sekita , Tsunefumi Tanaka , Toshiya Kurihashi , Shigeo Ogura , Keisuke Araki , Nobuhiro Takeda , Yoshihiro Uchino , Kenichi Kimura , Toshikazu Yanai , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
发明人： Makoto Sekita , Tsunefumi Tanaka , Toshiya Kurihashi , Shigeo Ogura , Keisuke Araki , Nobuhiro Takeda , Yoshihiro Uchino , Kenichi Kimura , Toshikazu Yanai , Norihiro Nanba , Hiroshi Saruwatari , Takeshi Akiyama
IPC分类号： G02B1700
CPC分类号： G02B17/0896 , G02B15/00 , G02B17/0663 , G02B17/0694 , G02B17/0848 , G02B17/086 , H04N5/2251 , H04N5/2253 , H04N5/2254
摘要： A zoom lens comprises a plurality of optical elements each of which includes a transparent body having two refracting surfaces and a plurality of reflecting surfaces and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from front surface mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element. In the zoom lens, the optical element which the light beam from an object enters first has an entrance pupil positioned on an object side of a first reflecting surface, and an image of the object is formed via the plurality of optical elements and zooming is performed by causing at least two optical elements from among the plurality of optical elements to vary their relative positions.
摘要翻译：变焦透镜包括多个光学元件，每个光学元件包括具有两个折射表面和多个反射表面的透明体，并且布置成使得光束从两个折射表面之一进入透明体，重复进行反射，并且从两个折射表面中的另一个退出，和/或多个光学元件，其中每个光学元件由前表面反射镜形成的多个反射表面整体形成，并且每个光学元件布置成使得入射光束反复由多个反射面经受反射并从光学元件出射。在变焦透镜中，来自物体的光束首先进入的光学元件具有位于第一反射面的物体侧的入射光瞳，并且经由多个光学元件形成物体的图像，并且进行变焦通过使多个光学元件中的至少两个光学元件改变其相对位置。

40. 发明授权

US06208811B1 Automatic focussing system 失效
标题翻译：自动聚焦系统
公开(公告)号：US06208811B1
公开(公告)日：2001-03-27
申请号：US07573270
申请日：1990-08-27
申请人： Tsunefumi Tanaka
发明人： Tsunefumi Tanaka
IPC分类号： G03B300
CPC分类号： G02B7/34
摘要： An automatic focussing system including a photographic lens having a memory for storing informations (S0, A) concerning focussing of the photographic lens, a focus detecting unit for detecting a magnitude (d) of focus deviation of the photographic lens, an operation circuit for producing a magnitude of movement required to attain correct focussing of the photographic lens on the basis of the above-mentioned informations and the magnitude of focus deviation, and a driving unit for driving the photographic lens according to an output of said operation circuit, thereby attaining an optimum focussed state in a short time.
摘要翻译：一种自动聚焦系统，包括具有用于存储关于摄影透镜的聚焦的信息（S0，A）的存储器的摄影镜头，用于检测摄影镜头的焦点偏差的大小（d）的焦点检测单元，用于产生基于上述信息和聚焦偏差的大小来获得对照相镜头的正确聚焦所需的移动量，以及用于根据所述操作电路的输出驱动摄影镜头的驱动单元，由此获得在短时间内最佳聚焦状态。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式