公开(公告)号：US20070182933A1

公开(公告)日：2007-08-09

申请号：US11671140

申请日：2007-02-05

申请人： Takashi Sudo ,  Hiroyuki Kodama ,  Makoto Takahashi

发明人： Takashi Sudo ,  Hiroyuki Kodama ,  Makoto Takahashi

IPC分类号： G03B21/14

CPC分类号： G03B21/14 ,  G03B21/2073 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/315

摘要： A color separation optical system is disclosed which is effective in improving black color and black unevenness. Linearly polarized light impinging on a dichroic surface at an incident angle smaller than 45 degrees and then impinging on a polarization beam splitting surface at an incident angle larger than 45 degrees is referred to as first incident-angle light. A wavelength which is longer than a wavelength at the maximum transmittance of the dichroic surface for the first incident-angle light and at which the transmittance of the dichroic surface for the first incident-angle light is 10% is referred to as Wa, and a wavelength range shorter than Wa is referred to as W. The polarization beam splitting surface has a characteristic in which its transmittance for the first incident-angle light in the wavelength range W is 5% or lower.

摘要翻译： 公开了一种有效改善黑色和黑色不均匀性的分色光学系统。 以小于45度的入射角撞击在二向色表面上，然后以大于45度的入射角撞击偏振分束表面的线偏振光被称为第一入射角光。 长于第一入射角光的二向色表面的最大透射率的波长并且第一入射角光的二向色表面的透射率为10％的波长称为Wa，并且 将比Wa稍短的波长范围称为W.偏振光束分离面具有其波长范围W中的第一入射角光的透射率为5％以下的特性。

公开(公告)号：US20070291344A1

公开(公告)日：2007-12-20

申请号：US11760128

申请日：2007-06-08

申请人： Yu YAMAUCHI ,  Atsushi Okuyama ,  Hiroyuki Kodama ,  Takashi Sudo

发明人： Yu YAMAUCHI ,  Atsushi Okuyama ,  Hiroyuki Kodama ,  Takashi Sudo

IPC分类号： G02B26/08

CPC分类号： G02B3/0062 ,  G02B3/0043 ,  G02B27/0905 ,  G02B27/0961 ,  G03B21/14 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3152

摘要： An optical system for image projection is disclosed which is easy to be manufactured and designed and capable of projecting a bright image with high contrast. The optical system includes an illumination optical system introducing a luminous flux emitted from a light source to an image-forming element through an optical surface having a light-splitting function, and a projection optical system projecting the luminous flux from the image-forming element through the optical surface onto a projection surface. The illumination optical system includes a conversion system which respectively converts the widths of the luminous flux in first and second cross-sections into widths different from those before entering thereinto. Conversion rates in the first and second cross-sections are different from each other.

摘要翻译： 公开了一种用于图像投影的光学系统，其易于制造和设计并且能够投射具有高对比度的明亮图像。 光学系统包括：照明光学系统，其通过具有分光功能的光学表面将从光源发射的光束引入图像形成元件;以及投影光学系统，其将来自图像形成元件的光通量投影到 光学表面到投影表面上。 照明光学系统包括转换系统，其将第一和第二横截面中的光通量的宽度分别转换成与进入之前不同的宽度。 第一和第二横截面的转换率彼此不同。

公开(公告)号：US08474981B2

公开(公告)日：2013-07-02

申请号：US12970665

申请日：2010-12-16

申请人： Takashi Sudo ,  Hiroyuki Kodama

发明人： Takashi Sudo ,  Hiroyuki Kodama

IPC分类号： G03B21/26

CPC分类号： G03B21/2013 ,  G03B21/2026 ,  G03B21/2066 ,  H04N9/3164

摘要： An illumination optical system includes first and second lamp units, a light combining portion that combines a light beam from the first lamp unit and a light beam from the second lamp unit, at least one light returning portion disposed between the first lamp unit and the light combining portion, or between the second lamp unit and the light combining portion, or both, the or each of the at least one light returning portion dividing a part of light emitted from the corresponding lamp unit into a light beam to be returned to the lamp and a light beam to be led to the light combining portion, and a condenser lens that condenses light from the light combining portion.

摘要翻译： 照明光学系统包括第一和第二灯单元，组合来自第一灯单元的光束和来自第二灯单元的光束的光合并部分，设置在第一灯单元和光之间的至少一个光返回部 组合部分，或者在第二灯单元和光合成部分之间或两者中，所述至少一个光返回部分中的每一个将相应灯单元发射的光的一部分分成待返回到灯的光束 以及被引导到光合成部的光束，以及会聚来自光合成部的光的聚光透镜。

公开(公告)号：US08308300B2

公开(公告)日：2012-11-13

申请号：US11671140

申请日：2007-02-05

申请人： Takashi Sudo ,  Hiroyuki Kodama ,  Makoto Takahashi

发明人： Takashi Sudo ,  Hiroyuki Kodama ,  Makoto Takahashi

IPC分类号： G03B21/14

CPC分类号： G03B21/14 ,  G03B21/2073 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/315

摘要： A color separation optical system is disclosed which is effective in improving black color and black unevenness. Linearly polarized light impinging on a dichroic surface at an incident angle smaller than 45 degrees and then impinging on a polarization beam splitting surface at an incident angle larger than 45 degrees is referred to as first incident-angle light. A wavelength which is longer than a wavelength at the maximum transmittance of the dichroic surface for the first incident-angle light and at which the transmittance of the dichroic surface for the first incident-angle light is 10% is referred to as Wa, and a wavelength range shorter than Wa is referred to as W. The polarization beam splitting surface has a characteristic in which its transmittance for the first incident-angle light in the wavelength range W is 5% or lower.

摘要翻译： 公开了一种有效改善黑色和黑色不均匀性的分色光学系统。 以小于45度的入射角撞击在二向色表面上，然后以大于45度的入射角撞击偏振光束分离表面的线偏振光被称为第一入射角光。 长于第一入射角光的二向色表面的最大透射率的波长并且第一入射角光的二向色表面的透射率为10％的波长称为Wa，并且 将比Wa稍短的波长范围称为W.偏振光束分离面具有其波长范围W中的第一入射角光的透射率为5％以下的特性。

公开(公告)号：US07935920B2

公开(公告)日：2011-05-03

申请号：US11760128

申请日：2007-06-08

申请人： Yu Yamauchi ,  Atsushi Okuyama ,  Hiroyuki Kodama ,  Takashi Sudo

发明人： Yu Yamauchi ,  Atsushi Okuyama ,  Hiroyuki Kodama ,  Takashi Sudo

IPC分类号： H01J3/14

CPC分类号： G02B3/0062 ,  G02B3/0043 ,  G02B27/0905 ,  G02B27/0961 ,  G03B21/14 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3152

摘要： An optical system for image projection is disclosed which is easy to be manufactured and designed and capable of projecting a bright image with high contrast. The optical system includes an illumination optical system introducing a luminous flux emitted from a light source to an image-forming element through an optical surface having a light-splitting function, and a projection optical system projecting the luminous flux from the image-forming element through the optical surface onto a projection surface. The illumination optical system includes a conversion system which respectively converts the widths of the luminous flux in first and second cross-sections into widths different from those before entering thereinto. Conversion rates in the first and second cross-sections are different from each other.

摘要翻译： 公开了一种用于图像投影的光学系统，其易于制造和设计并且能够投射具有高对比度的明亮图像。 光学系统包括：照明光学系统，其通过具有分光功能的光学表面将从光源发射的光束引入图像形成元件;以及投影光学系统，其将来自图像形成元件的光通量投影到 光学表面到投影表面上。 照明光学系统包括转换系统，其将第一和第二横截面中的光通量的宽度分别转换成与进入之前不同的宽度。 第一和第二横截面的转换率彼此不同。

公开(公告)号：US09575402B2

公开(公告)日：2017-02-21

申请号：US13334744

申请日：2011-12-22

申请人： Yuuki Maeda ,  Takashi Sudo ,  Hiroyuki Kodama ,  Yu Yamauchi

发明人： Yuuki Maeda ,  Takashi Sudo ,  Hiroyuki Kodama ,  Yu Yamauchi

IPC分类号： G03B21/20 ,  H04N9/31 ,  G02B27/09 ,  G02B27/28

CPC分类号： G03B21/208 ,  G02B27/0961 ,  G02B27/283 ,  H04N9/3129 ,  H04N9/3152 ,  H04N9/3167

摘要： An illumination optical system includes a first compression system configured to compress a light flux on each of first and second sections, a second compression system configured to compress the light flux on the first section, a polarization converter arranged so that a section that contains a normal of the second polarization splitting surface and the optical axis becomes the second section, and configured to convert non-polarized light into linearly polarized light, a first lens array arranged in front of the polarization converter along an optical path, and a second lens array arranged between the first lens array and the polarization converter along the optical path. Both of the first lens array and the second lens array have no optical power on the second section.

摘要翻译： 照明光学系统包括被配置为压缩第一和第二部分中的每一个上的光通量的第一压缩系统，被配置为压缩第一部分上的光通量的第二压缩系统;偏振转换器，其布置成使得包含正常 所述第二偏振光分离面和所述光轴成为所述第二部分，并且被配置为将非偏振光转换为线偏振光，沿着光路布置在所述偏振转换器的前方的第一透镜阵列和布置在所述偏振转换器的前方的第二透镜阵列 沿着光路在第一透镜阵列和偏振转换器之间。 第一透镜阵列和第二透镜阵列都在第二部分上没有光焦度。

公开(公告)号：US08434877B2

公开(公告)日：2013-05-07

申请号：US12852331

申请日：2010-08-06

申请人： Hiroyuki Kodama ,  Takashi Sudo ,  Yuuki Maeda

发明人： Hiroyuki Kodama ,  Takashi Sudo ,  Yuuki Maeda

IPC分类号： G03B21/26 ,  G03B21/28 ,  G02B27/14

CPC分类号： G02B27/1026 ,  G02B27/1033 ,  G02B27/143 ,  G03B21/2013 ,  G03B21/2026 ,  G03B21/2066 ,  H04N9/3152 ,  H04N9/3164

摘要： An illumination optical system and a projection display apparatus include a beam combining portion and a condensing lens condensing a beam from the beam combining portion. The beam combining portion combines beams from first and second lamp units each including a lamp and a concave mirror, the lamp having a cathode and an anode arranged along an optical axis of the concave mirror. The beam combining portion includes a first reflective section disposed on an optical axis of the first lamp unit and off the optical axis of the second lamp unit and a second reflective section disposed off the optical axis of the first lamp unit. The first and second reflective sections reflect a beam that is emitted from the second lamp unit and that is off an optical axis thereof to combine the beams from the first and second lamp units.

摘要翻译： 照明光学系统和投影显示装置包括光束组合部分和会聚来自光束组合部分的光束的聚光透镜。 光束组合部分组合来自包括灯和凹面镜的第一和第二灯单元的光束，该灯具有沿着凹面镜的光轴布置的阴极和阳极。 光束组合部分包括设置在第一灯单元的光轴上并离开第二灯单元的光轴的第一反射部分和设置在第一灯单元的光轴上的第二反射部分。 第一和第二反射部分反射从第二灯单元发射并且离开其光轴的光束，以组合来自第一和第二灯单元的光束。

公开(公告)号：US20120162610A1

公开(公告)日：2012-06-28

申请号：US13334744

申请日：2011-12-22

申请人： Yuuki Maeda ,  Takashi Sudo ,  Hiroyuki Kodama ,  Yu Yamauchi

发明人： Yuuki Maeda ,  Takashi Sudo ,  Hiroyuki Kodama ,  Yu Yamauchi

IPC分类号： G03B21/14 ,  F21V9/14

CPC分类号： G03B21/208 ,  G02B27/0961 ,  G02B27/283 ,  H04N9/3129 ,  H04N9/3152 ,  H04N9/3167

摘要： An illumination optical system includes a first compression system configured to compress a light flux on each of first and second sections, a second compression system configured to compress the light flux on the first section, a polarization converter arranged so that a section that contains a normal of the second polarization splitting surface and the optical axis becomes the second section, and configured to convert non-polarized light into linearly polarized light, a first lens array arranged in front of the polarization converter along an optical path, and a second lens array arranged between the first lens array and the polarization converter along the optical path. Both of the first lens array and the second lens array have no optical power on the second section.

摘要翻译： 照明光学系统包括被配置为压缩第一和第二部分中的每一个上的光通量的第一压缩系统，被配置为压缩第一部分上的光通量的第二压缩系统;偏振转换器，其布置成使得包含正常 所述第二偏振光分离面和所述光轴成为所述第二部分，并且被配置为将非偏振光转换为线偏振光，沿着光路布置在所述偏振转换器的前方的第一透镜阵列和布置在所述偏振转换器的前方的第二透镜阵列 沿着光路在第一透镜阵列和偏振转换器之间。 第一透镜阵列和第二透镜阵列都在第二部分上没有光焦度。

公开(公告)号：US20110149250A1

公开(公告)日：2011-06-23

申请号：US12970665

申请日：2010-12-16

申请人： Takashi Sudo ,  Hiroyuki Kodama

发明人： Takashi Sudo ,  Hiroyuki Kodama

IPC分类号： G03B21/14 ,  F21V7/00 ,  F21V5/00 ,  F21V9/14

CPC分类号： G03B21/2013 ,  G03B21/2026 ,  G03B21/2066 ,  H04N9/3164

摘要： An illumination optical system includes first and second lamp units, a light combining portion that combines a light beam from the first lamp unit and a light beam from the second lamp unit, at least one light returning portion disposed between the first lamp unit and the light combining portion, or between the second lamp unit and the light combining portion, or both, the or each of the at least one light returning portion dividing a part of light emitted from the corresponding lamp unit into a light beam to be returned to the lamp and a light beam to be led to the light combining portion, and a condenser lens that condenses light from the light combining portion.

摘要翻译： 照明光学系统包括第一和第二灯单元，组合来自第一灯单元的光束和来自第二灯单元的光束的光合并部分，设置在第一灯单元和光之间的至少一个光返回部 组合部分，或者在第二灯单元和光合成部分之间或两者中，所述至少一个光返回部分中的每一个将相应灯单元发射的光的一部分分成待返回到灯的光束 以及被引导到光合成部的光束，以及会聚来自光合成部的光的聚光透镜。

公开(公告)号：US20110043767A1

公开(公告)日：2011-02-24

申请号：US12852331

申请日：2010-08-06

申请人： Hiroyuki Kodama ,  Takashi Sudo ,  Yuuki Maeda

发明人： Hiroyuki Kodama ,  Takashi Sudo ,  Yuuki Maeda

IPC分类号： G03B21/28 ,  F21V7/04

CPC分类号： G02B27/1026 ,  G02B27/1033 ,  G02B27/143 ,  G03B21/2013 ,  G03B21/2026 ,  G03B21/2066 ,  H04N9/3152 ,  H04N9/3164

摘要： An illumination optical system and a projection display apparatus include a beam combining portion and a condensing lens condensing a beam from the beam combining portion. The beam combining portion combines beams from first and second lamp units each including a lamp and a concave mirror, the lamp having a cathode and an anode arranged along an optical axis of the concave mirror. The beam combining portion includes a first reflective section disposed on an optical axis of the first lamp unit and off the optical axis of the second lamp unit and a second reflective section disposed off the optical axis of the first lamp unit. The first and second reflective sections reflect a beam that is emitted from the second lamp unit and that is off an optical axis thereof to combine the beams from the first and second lamp units.

摘要翻译： 照明光学系统和投影显示装置包括光束组合部分和会聚来自光束组合部分的光束的聚光透镜。 光束组合部分组合来自包括灯和凹面镜的第一和第二灯单元的光束，该灯具有沿着凹面镜的光轴布置的阴极和阳极。 光束组合部分包括设置在第一灯单元的光轴上并离开第二灯单元的光轴的第一反射部分和设置在第一灯单元的光轴上的第二反射部分。 第一和第二反射部分反射从第二灯单元发射并且离开其光轴的光束，以组合来自第一和第二灯单元的光束。