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1. 发明授权

US07880972B2 Projection optical system 有权
标题翻译：投影光学系统
公开(公告)号：US07880972B2
公开(公告)日：2011-02-01
申请号：US12165969
申请日：2008-07-01
申请人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara
发明人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara
IPC分类号： G02B9/00 , G02B17/00
CPC分类号： G02B17/0832 , G02B17/0848
摘要： A projection optical system for projecting, while enlarging, an image formed on an image formation surface onto an image projection surface from an oblique direction relative thereto has at least three optically powered reflective surfaces and a refractive lens surface having a non-rotation-symmetric free-form curved surface and disposed between the first and second reflective surfaces as counted from the image formation surface side.
摘要翻译：一种投影光学系统，用于将形成在图像形成表面上的图像从相对于其倾斜方向放大到图像投影表面的投影光学系统具有至少三个光学反射表面和具有非旋转对称自由的折射透镜表面形成曲面并且设置在从图像形成表面侧计数的第一和第二反射表面之间。

2. 发明授权

US07503661B2 Projection optical system 失效
标题翻译：投影光学系统
公开(公告)号：US07503661B2
公开(公告)日：2009-03-17
申请号：US11283470
申请日：2005-11-18
申请人： Tomokazu Masubuchi , Masayuki Imaoka , Jun Ishihara
发明人： Tomokazu Masubuchi , Masayuki Imaoka , Jun Ishihara
IPC分类号： G03B21/28 , G03B21/56 , G02B7/182 , G02B5/10 , H04N5/74
CPC分类号： G03B21/28 , G03B21/10
摘要： In a projection optical system for obliquely performing enlargement projection of an image formed on a display device surface onto a screen surface, a plurality of reflective surfaces are provided, at least one of which is a curved reflective surface having an optical power. Letting the curved reflective surface, out of said at least one curved reflective surface, having the largest effective optical region be the largest curved reflective surface, the reflective surface other than the largest curved reflective surface is slightly decentered with the largest curved reflective surface kept in a fixed state so as to perform pixel shift on the screen surface in a vertical direction, or a horizontal direction, or an oblique direction, or vertical and horizontal directions within the range of a pixel pitch.
摘要翻译：在用于将形成在显示装置表面上的图像向屏幕表面进行倾斜执行放大投影的投影光学系统中，提供多个反射表面，其中至少一个是具有光焦度的弯曲反射表面。使具有最大有效光学区域的所述至少一个弯曲反射表面中的弯曲反射表面是最大的弯曲反射表面，除最大弯曲反射表面之外的反射表面稍微偏心，最大弯曲反射表面保持在固定状态，以便在像素间距的范围内的垂直方向或水平方向或倾斜方向或垂直和水平方向上在屏幕表面上执行像素移位。

3. 发明申请

US20080273177A1 PROJECTION OPTICAL SYSTEM 有权
标题翻译：投影光学系统
公开(公告)号：US20080273177A1
公开(公告)日：2008-11-06
申请号：US12165969
申请日：2008-07-01
申请人： Masayuki IMAOKA , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
发明人： Masayuki IMAOKA , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
IPC分类号： G03B21/28
CPC分类号： G02B17/0832 , G02B17/0848
摘要： A projection optical system for projecting, while enlarging, an image formed on an image formation surface onto an image projection surface from an oblique direction relative thereto has at least three optically powered reflective surfaces and a refractive lens surface having a non-rotation-symmetric free-form curved surface and disposed between the first and second reflective surfaces as counted from the image formation surface side.
摘要翻译：一种投影光学系统，用于将形成在图像形成表面上的图像从相对于其倾斜方向放大到图像投影表面的投影光学系统具有至少三个光学反射表面和具有非旋转对称自由的折射透镜表面形成曲面并且设置在从图像形成表面侧计数的第一和第二反射表面之间。

4. 发明授权

US07411737B2 Projection optical system 有权
标题翻译：投影光学系统
公开(公告)号：US07411737B2
公开(公告)日：2008-08-12
申请号：US11253224
申请日：2005-10-18
申请人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
发明人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
IPC分类号： G02B3/00 , G02B17/00
CPC分类号： G02B17/0832 , G02B17/0848
摘要： A projection optical system for projecting, while enlarging, an image formed on an image formation surface onto an image projection surface from an oblique direction relative thereto has at least three optically powered reflective surfaces and a refractive lens surface having a non-rotation-symmetric free-form curved surface and disposed between the first and second reflective surfaces as counted from the image formation surface side.
摘要翻译：一种投影光学系统，用于将形成在图像形成表面上的图像从相对于其倾斜方向放大到图像投影表面的投影光学系统具有至少三个光学反射表面和具有非旋转对称自由的折射透镜表面形成曲面并且设置在从图像形成表面侧计数的第一和第二反射表面之间。

5. 发明申请

US20060152822A1 Projection optical system 有权
标题翻译：投影光学系统
公开(公告)号：US20060152822A1
公开(公告)日：2006-07-13
申请号：US11253224
申请日：2005-10-18
申请人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
发明人： Masayuki Imaoka , Tomokazu Masubuchi , Jun Ishihara , Tomiei Kuwa
IPC分类号： G02B17/00
CPC分类号： G02B17/0832 , G02B17/0848
摘要： A projection optical system for projecting, while enlarging, an image formed on an image formation surface onto an image projection surface from an oblique direction relative thereto has at least three optically powered reflective surfaces and a refractive lens surface having a non-rotation-symmetric free-form curved surface and disposed between the first and second reflective surfaces as counted from the image formation surface side.
摘要翻译：一种投影光学系统，用于将形成在图像形成表面上的图像从相对于其倾斜方向放大到图像投影表面的投影光学系统具有至少三个光学反射表面和具有非旋转对称自由的折射透镜表面形成曲面并且设置在从图像形成表面侧计数的第一和第二反射表面之间。

6. 发明申请

US20060114430A1 Projection optical system 失效
公开(公告)号：US20060114430A1
公开(公告)日：2006-06-01
申请号：US11283470
申请日：2005-11-18
申请人： Tomokazu Masubuchi , Masayuki Imaoka , Jun Ishihara
发明人： Tomokazu Masubuchi , Masayuki Imaoka , Jun Ishihara
IPC分类号： G03B21/28
CPC分类号： G03B21/28 , G03B21/10
摘要： In a projection optical system for obliquely performing enlargement projection of an image formed on a display device surface onto a screen surface, a plurality of reflective surfaces are provided, at least one of which is a curved reflective surface having an optical power. Letting the curved reflective surface, out of said at least one curved reflective surface, having the largest effective optical region be the largest curved reflective surface, the reflective surface other than the largest curved reflective surface is slightly decentered with the largest curved reflective surface kept in a fixed state so as to perform pixel shift on the screen surface in a vertical direction, or a horizontal direction, or an oblique direction, or vertical and horizontal directions within the range of a pixel pitch.

7. 发明申请

US20050286136A1 PROJECTION OPTICAL SYSTEM AND PROJECTING APPARATUS PROVIDED WITH SAME 失效
标题翻译：投影光学系统和投影设备
公开(公告)号：US20050286136A1
公开(公告)日：2005-12-29
申请号：US11053028
申请日：2005-02-08
申请人： Tomokazu Masubuchi , Kohtaro Hayashi , Shigeru Sawamura
发明人： Tomokazu Masubuchi , Kohtaro Hayashi , Shigeru Sawamura
IPC分类号： G02B3/00 , G02B13/16
CPC分类号： G02B13/16
摘要： A projection optical system includes from the enlargement side a first lens unit, a mirror which is an optical path bending member, a second lens unit, and a third lens unit. The projection optical system is designed so that a condition (1), 5.5
摘要翻译：投影光学系统包括放大侧的第一透镜单元，作为光路弯曲构件的反射镜，第二透镜单元和第三透镜单元。投影光学系统被设计成满足条件（1），5.5

8. 发明授权

US06789902B2 Projection optical system and projector using the same 失效
标题翻译：投影光学系统和投影机使用相同
公开(公告)号：US06789902B2
公开(公告)日：2004-09-14
申请号：US10354304
申请日：2003-01-30
申请人： Kohtaro Hayashi , Tomokazu Masubuchi , Tomokazu Taguchi
发明人： Kohtaro Hayashi , Tomokazu Masubuchi , Tomokazu Taguchi
IPC分类号： G03B2114
CPC分类号： G02B27/1026 , G02B27/1073 , G02B27/142 , G02B27/145 , G02B27/283 , H04N9/3105
摘要： A projection optical system has three LCLVs; a first color-separating mirror for separating a substantially polarized light into a first and second color lights and a third color light; a half-wave plate for rotating the polarization direction of either one(s) of the separated light; a second color-separating mirror for synthesizing the first and the third color light, and further, separating the second color light; a first PBS for separating the first and third color lights and illuminating the first and third LCLVs, respectively, and synthesizing image lights from the first and third LCLVs; a second PBS for illuminating the second LCLV and emitting a image light modulated by the second LCLV; a half-wave plate disposed external to output surface of the first PBS; and a third PBS for synthesizing three image lights, the third PBS has a dicroic characteristics and a polarization characteristics.
摘要翻译：投影光学系统具有三个LCLV; 用于将基本上偏振光分离成第一和第二颜色光和第三颜色光的第一分色镜; 用于旋转分离的光的一个或多个的偏振方向的半波片; 用于合成第一和第三颜色光的第二分色镜，并且进一步分离第二色光; 第一PBS，用于分离第一和第三颜色光并分别照亮第一和第三LCLV，并合成来自第一和第三LCLV的图像光; 用于照亮所述第二LCLV并发射由所述第二LCLV调制的图像光的第二PBS; 设置在第一PBS的输出表面外部的半波片; 和用于合成三个图像光的第三个PBS，第三个PBS具有微微特性和极化特性。

9. 发明授权

US06761458B2 Rear projection optical system 失效
标题翻译：背投光学系统
公开(公告)号：US06761458B2
公开(公告)日：2004-07-13
申请号：US10192239
申请日：2002-07-10
申请人： Shigeyoshi Sakata , Tomokazu Masubuchi
发明人： Shigeyoshi Sakata , Tomokazu Masubuchi
IPC分类号： G03B2128
CPC分类号： G03B21/22
摘要： Disclosed herewith is a rear projection optical system for being installed at a rear side of a screen of a rear projection apparatus. The rear projection system comprises: a display panel; a illuminating optical system for illuminating the display panel, the illuminating optical system being decentered from a screen center in both of a horizontal direction and a vertical direction; and a projection optical system, decentered from the screen center in the vertical direction, for projecting a display image on the display panel projected by the illuminating optical system onto a screen through a rear mirror positioned at a position that is the center of the screen. The projection optical system comprises a dioptric system, a deflection mirror, and a curved mirror in this order from the display panel to the rear mirror, and the curved mirror is decentered from the screen center in the vertical direction but centered against the screen center in the horizontal direction.
摘要翻译：这里公开了一种用于安装在背投投影装置的屏幕的后侧的后投光学系统。背投系统包括：显示面板; 照明光学系统，用于照亮所述显示面板，所述照明光学系统在水平方向和垂直方向上从屏幕中心偏心; 以及投影光学系统，其从垂直方向的屏幕中心偏心，用于通过位于屏幕中心位置的后反射镜将由照明光学系统投影的显示面板上的显示图像投影到屏幕上。投影光学系统从显示面板到后视镜依次包括折射系统，偏转镜和曲面镜，并且曲面镜在垂直方向上偏离屏幕中心，但是与屏幕中心对准水平方向。

10. 发明授权

US06791750B2 Polarization beam splitter 失效
标题翻译：极化分束器
公开(公告)号：US06791750B2
公开(公告)日：2004-09-14
申请号：US10304330
申请日：2002-11-26
申请人： Tomokazu Masubuchi , Kohtaro Hayashi
发明人： Tomokazu Masubuchi , Kohtaro Hayashi
IPC分类号： G02B110
CPC分类号： G02B5/285 , G02B5/3041 , G02B27/142 , G02B27/144
摘要： In a polarization beam splitter that allows effective polarization separation in a wide wavelength range with low dependency on angle of incidence, between two prisms is sandwiched a dielectric multilayer film composed of a first and a second multilayer portion that are designed with respect to a first and a second wavelength &lgr;1, and &lgr;2, respectively. Moreover, the formula &lgr;1
摘要翻译：在偏光分束器中，允许在较宽的波长范围内有效的偏振分离，对入射角的依赖性较低，两个棱镜之间夹有由第一和第二多层部分构成的电介质多层膜，该多层膜相对于第一和第第二波长λ1和λ2。此外，公式λ1<λ2<= 155.lambda1，并且其中第一多层部分中的高折射率和低折射率层的折射率之差大于相同差值第二多层部分与角度θ1和θ2与棱镜顶角θ的差异更大。

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