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公开(公告)号：US08254039B2
公开(公告)日：2012-08-28
申请号：US12546430
申请日：2009-08-24
申请人： Kazuhiro Fujita , Issei Abe
发明人： Kazuhiro Fujita , Issei Abe
CPC分类号： G02B17/08 , G02B17/0852 , G02B17/0896 , G03B21/28
摘要： A variable magnification optical system projects an image onto a screen with a sufficient magnification without requiring a large-sized mirror. The variable magnification optical system includes a first optical system through which a light beam modulated with an image signal corresponding to the image is passed; a second optical system disposed downstream of the first optical system in a direction of travel of the light beam along an optical axis; and a reflective optical element having a magnification power that is configured to reflect the light beam from the second optical system toward the screen. A magnification of the image projected on the screen is changed by moving the reflective optical element relative to the object plane, thus changing a distance between the screen and the reflective optical element, while an incident angle of the light beam on the screen is maintained substantially constant.
摘要翻译： 可变放大倍率光学系统将图像投影到具有足够放大率的屏幕上，而不需要大尺寸的反射镜。 可变放大率光学系统包括第一光学系统，通过该第一光学系统通过与图像相对应的图像信号调制的光束; 第二光学系统，沿着所述光束沿着光轴的行进方向设置在所述第一光学系统的下游; 以及反射光学元件，其具有被配置为将来自第二光学系统的光束反射到屏幕的放大倍率。 通过相对于物体平面移动反射光学元件来改变投射在屏幕上的图像的放大率，从而改变屏幕和反射光学元件之间的距离，同时保持屏幕上光束的入射角基本上保持 不变。
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公开(公告)号：US08189264B2
公开(公告)日：2012-05-29
申请号：US12392287
申请日：2009-02-25
申请人： Issei Abe , Kazuhiro Fujita
发明人： Issei Abe , Kazuhiro Fujita
IPC分类号： G02B3/00
CPC分类号： G02B27/283 , G02B17/0804 , G02B27/1026 , G02B27/14 , G02B27/149
摘要： A projection optical system, in which a plurality of light flux emitted from one conjugate plane enters another conjugate plane and an image formed on the one conjugate plane is projected on the other conjugate plane, includes: a first optical system including at least one lens; and a second optical system which includes at least two reflecting surfaces with optical power, a normal line of the other conjugate plane from a center of an image projected on the other conjugate plane has no intersection with any space of the first optical system, or the second optical system, or a space between the first optical system and the second optical system, and when a plane defined by a vertical direction of the image projected on the other conjugate plane and an extending direction of the normal line is set as a YZ plane, from the first optical system to the other conjugate plane an optical path intersects only once on the YZ plane.
摘要翻译： 一种投影光学系统，其中从一个共轭面发射的多个光束进入另一个共轭平面，并且在一个共轭平面上形成的图像投影在另一共轭平面上，包括：包括至少一个透镜的第一光学系统; 以及第二光学系统，其包括具有光功率的至少两个反射表面，另一个共轭平面的从另一个共轭平面投影的图像的中心的法线与第一光学系统的任何空间不相交，或者 第二光学系统或第一光学系统和第二光学系统之间的空间，并且当由投影在另一个共轭平面上的图像的垂直方向和法线的延伸方向限定的平面被设置为YZ平面 ，从第一光学系统到另一个共轭平面，光路仅在YZ平面上相交一次。
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33.发明申请公开(公告)号：US20120044465A1
公开(公告)日：2012-02-23
申请号：US13204016
申请日：2011-08-05
申请人： Toshiharu MURAI , Kazuhiro Fujita , Issei Abe , Shigeyoshi Misawa
发明人： Toshiharu MURAI , Kazuhiro Fujita , Issei Abe , Shigeyoshi Misawa
CPC分类号： G03B21/204
摘要： A light source unit includes a cylindrical transparent substrate capable of being controlled to rotate; plural segment regions provided at a cylinder portion of a side surface of the cylindrical transparent substrate; layers of different phosphors arranged on at least two of the plural segment regions, the different phosphors being configured to emit light of prescribed wavelength bands upon receiving excitation light; and an excitation light source provided inside or outside of the transparent substrate, the excitation light source being configured to apply the excitation light to the phosphors.
摘要翻译： 光源单元包括能够被控制旋转的圆柱形透明基板; 多个段区域，设置在圆筒形透明基板的侧面的圆筒部分; 多个不同荧光体的层被布置在多个区段中的至少两个区域上，不同的荧光体被配置为在接收到激发光时发射规定波长带的光; 以及设置在所述透明基板的内部或外部的激励光源，所述激发光源被配置为将激发光施加到所述荧光体。
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公开(公告)号：US20100053737A1
公开(公告)日：2010-03-04
申请号：US12546430
申请日：2009-08-24
申请人： Kazuhiro FUJITA , Issei Abe
发明人： Kazuhiro FUJITA , Issei Abe
IPC分类号： G02B17/08
CPC分类号： G02B17/08 , G02B17/0852 , G02B17/0896 , G03B21/28
摘要： A variable magnification optical system projects an image onto a screen with a sufficient magnification without requiring a large-sized mirror. The variable magnification optical system includes a first optical system through which a light beam modulated with an image signal corresponding to the image is passed; a second optical system disposed downstream of the first optical system in a direction of travel of the light beam along an optical axis; and a reflective optical element having a magnification power that is configured to reflect the light beam from the second optical system toward the screen. A magnification of the image projected on the screen is changed by moving the reflective optical element relative to the object plane, thus changing a distance between the screen and the reflective optical element, while an incident angle of the light beam on the screen is maintained substantially constant.
摘要翻译： 可变放大倍率光学系统将图像投影到具有足够倍率的屏幕上，而不需要大尺寸的反射镜。 可变放大率光学系统包括第一光学系统，通过该第一光学系统通过与图像相对应的图像信号调制的光束; 第二光学系统，沿着所述光束沿着光轴的行进方向设置在所述第一光学系统的下游; 以及反射光学元件，其具有被配置为将来自第二光学系统的光束反射到屏幕的放大倍率。 通过相对于物体平面移动反射光学元件来改变投射在屏幕上的图像的放大率，从而改变屏幕和反射光学元件之间的距离，同时保持屏幕上的光束的入射角基本上保持 不变。
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公开(公告)号：US20100254025A1
公开(公告)日：2010-10-07
申请号：US12728556
申请日：2010-03-22
申请人： Hayato YOSHIDA , Issei Abe , Naoki Moniwa
发明人： Hayato YOSHIDA , Issei Abe , Naoki Moniwa
IPC分类号： G02B13/18
摘要： Disclosed is a wide-angle lens having a viewing angle of more than 130°. The wide angle lens has a front group, an aperture, and a rear group arranged in this order from an object side to an image side. The front group has a first lens as a negative lens, a second lens as a negative lens, and a third lens as a positive lens arranged from the object side to the image side. The rear group is a cemented lens having a positive power when two lenses are bonded to each other. The wide-angle lens constitutes an image forming system with the five lenses as a whole, the first lens and the second lens of the front group are aspherical lenses, and the third lens is a spherical lens.
摘要翻译： 公开了具有大于130°的视角的广角镜头。 广角镜具有从物体侧到像侧依次排列的前组，孔和后组。 前组具有作为负透镜的第一透镜，作为负透镜的第二透镜，以及从物侧设置到像侧的作为正透镜的第三透镜。 当两个透镜彼此接合时，后组是具有正功率的胶合透镜。 广角镜头构成了具有整个五个透镜的图像形成系统，前组的第一透镜和第二透镜是非球面透镜，并且第三透镜是球面透镜。
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公开(公告)号：US11595631B2
公开(公告)日：2023-02-28
申请号：US17417136
申请日：2020-03-03
申请人： Kento Nakamura , Hiroyuki Satoh , Jun Kishiwada , Issei Abe
发明人： Kento Nakamura , Hiroyuki Satoh , Jun Kishiwada , Issei Abe
IPC分类号： H04N13/239 , G01C3/14 , H04N5/225 , H04N5/232 , H04N5/341 , H04N5/3745 , G02B9/62 , G02B13/00 , H04N13/296 , G02B27/00
摘要： An imaging device includes an imaging element, and an image capturing optical system configured to generate an image of an object on the imaging element. The image capturing optical system has a gradient decreasing region in which a change of a gradient of an image magnification rate with respect to an angle of view of the image generated on the imaging element decreases as a concerned position deviates farther away from an optical axis of the image capturing optical system, and a gradient increasing region in which the change of the gradient of the image magnification rate with respect to the angle of view of the image generated on the imaging element increases as the concerned position deviates farther away from the optical axis of the image capturing optical system.
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公开(公告)号：US08643958B2
公开(公告)日：2014-02-04
申请号：US13257446
申请日：2010-03-24
申请人： Issei Abe , Hayato Yoshida , Naoki Moniwa
发明人： Issei Abe , Hayato Yoshida , Naoki Moniwa
CPC分类号： G02B13/06
摘要： A wide angle lens whose field angle exceeds 160 degrees, includes a front group, an aperture stop, and a rear group arranged in this order from an object-side toward an image-side. The front group includes a first lens (negative meniscus) whose convex surface faces the object, a second lens (negative), a third lens (negative), and a fourth lens (positive), arranged in this order from the object-side toward the image-side. The rear group includes a fifth lens (positive), a sixth lens (negative), and a seventh lens (positive), arranged in this order from an aperture-side toward the image-side. The fifth and sixth lenses are combined, forming a cemented lens having positive refractive power. The fifth and sixth lenses are made of materials having Abbe numbers of greater than or equal to 50 and less than or equal to 30, respectively. A surface of the seventh lens facing the image is aspheric.
摘要翻译： 场角超过160度的广角镜头包括从物体侧朝向图像侧依次排列的前组，孔径光阑和后组。 前组包括凸面朝向物体的第一透镜（负弯月面），第二透镜（负像），第三透镜（负像）和第四透镜（正），从物侧朝向 图像侧。 后组包括从孔径侧向图像侧依次排列的第五透镜（正），第六透镜（负像）和第七透镜（正）。 组合第五和第六透镜，形成具有正折光力的胶合透镜。 第五和第六透镜分别由阿贝数大于等于50且小于等于30的材料制成。 面对图像的第七透镜的表面是非球面的。
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公开(公告)号：US20090122422A1
公开(公告)日：2009-05-14
申请号：US12302849
申请日：2008-03-25
申请人： Hayato Yoshida , Yasushi Takahashi , Naoki Moniwa , Toshiyuki Kawasaki , Ryosuke Kasahara , Issei Abe , Yukiko Hamano
发明人： Hayato Yoshida , Yasushi Takahashi , Naoki Moniwa , Toshiyuki Kawasaki , Ryosuke Kasahara , Issei Abe , Yukiko Hamano
IPC分类号： G02B13/18
摘要： A wide-angle lens is disclosed that includes a front lens group and a rear lens group that are arranged in order from an object side to an image side with an aperture being arranged between the front lens group and the rear lens group. The front lens group includes at least two lenses arranged toward the object side that have positive powers, and at least one lens arranged toward the image side that has a negative positive power. One of the lenses of the front lens group arranged second in order from the object side has a lens face that is arranged into an aspheric surface. The front lens group, the aperture, and the rear lens group make up an image forming system having an angle of view greater than 180 degrees.
摘要翻译： 公开了一种广角镜头，其包括从物体侧到像侧依次布置的前透镜组和后透镜组，其中孔被布置在前透镜组和后透镜组之间。 前透镜组包括朝向物体侧布置的具有正光焦度的至少两个透镜，以及至少一个朝向图像侧布置的透镜，其具有正的正的光焦度。 从物体侧依次排列的前透镜组的透镜中的一个具有布置在非球面中的透镜面。 前透镜组，光圈和后透镜组构成具有大于180度的视角的图像形成系统。
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公开(公告)号：US08830298B2
公开(公告)日：2014-09-09
申请号：US13121022
申请日：2009-09-24
申请人： Issei Abe , Hayato Yoshida , Naoki Moniwa
发明人： Issei Abe , Hayato Yoshida , Naoki Moniwa
CPC分类号： G02B13/04 , G02B9/60 , G02B13/0045 , G02B13/18
摘要： A wide-angle lens comprising: an imaging lens system, including: a front lens group, an aperture, and a rear lens group, arranged in that order from an object side to an image side; wherein said front lens group comprises first and second lens elements, having negative power respectively, and a third lens that is a positive lens, arranged in that order from the object side to an aperture side; wherein said rear lens group comprises fourth and fifth lens elements, having positive power respectively, arranged in order from the aperture side to the image side; where an incident angle to an optical axis of the imaging lens system of a chief ray of a maximum angle of view passing through the aperture is θI, the following Expression 1 is satisfied. 40° (degrees)
摘要翻译： 一种广角镜头，包括：成像透镜系统，包括：从物体侧到像侧依次配置的前透镜组，光圈和后透镜组; 其中所述前透镜组包括分别具有负功率的第一和第二透镜元件和作为正透镜的第三透镜，从物体侧到孔侧依次布置; 其中所述后透镜组包括分别具有正光焦度的第四和第五透镜元件，从孔侧到像侧依次布置; 其中通过孔径的最大视角的主光线的成像透镜系统的光轴的入射角为＆It; I，满足以下表达式1。 40°（度）<＆thetas; I <60°（度）表达式1。
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公开(公告)号：US20110169912A1
公开(公告)日：2011-07-14
申请号：US13121022
申请日：2009-09-24
申请人： Issei Abe , Hayato Yoshida , Naoki Moniwa
发明人： Issei Abe , Hayato Yoshida , Naoki Moniwa
CPC分类号： G02B13/04 , G02B9/60 , G02B13/0045 , G02B13/18
摘要： A wide-angle lens comprising: an imaging lens system, including: a front lens group, an aperture, and a rear lens group, arranged in that order from an object side to an image side; wherein said front lens group comprises first and second lens elements, having negative power respectively, and a third lens that is a positive lens, arranged in that order from the object side to an aperture side; wherein said rear lens group comprises fourth and fifth lens elements, having positive power respectively, arranged in order from the aperture side to the image side; where an incident angle to an optical axis of the imaging lens system of a chief ray of a maximum angle of view passing through the aperture is θI, the following Expression 1 is satisfied. 40° (degrees)
摘要翻译： 一种广角镜头，包括：成像透镜系统，包括：从物体侧到像侧依次配置的前透镜组，光圈和后透镜组; 其中所述前透镜组包括分别具有负功率的第一和第二透镜元件和作为正透镜的第三透镜，从物体侧到孔侧依次布置; 其中所述后透镜组包括分别具有正光焦度的第四和第五透镜元件，从孔侧到像侧依次布置; 其中通过孔径的最大视角的主光线的成像透镜系统的光轴的入射角为＆It; I，满足以下表达式1。 40°（度）<＆thetas; I <60°（度）表达式1
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