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公开(公告)号：US5833341A
公开(公告)日：1998-11-10
申请号：US453441
申请日：1995-05-30
CPC分类号： H04N9/315 , F21V13/04 , F21V7/09 , G02B19/0023 , G02B19/0028 , G02B19/0047 , G03B21/2066
摘要： This invention provides a projector capable of effectively utilizing the light from the light source and significantly reducing the light illuminating the outside of the area to be illuminated, thereby attaining an excellent efficiency of light utilization. In the illuminating system of the present invention provided with a light source and a reflector, there is further provided a circular reflector of a spherical surface, for returning the light, which emerges from the light source to the outside of the area to be illuminated, without being reflected on the reflector, to the light source. Also there is provided a flat mirror or a substantially spherical sub reflector for returning the light, which proceeds to the outside of the area to be illuminated, after being reflected on the reflector, to the light source. The sub reflector may be provided in the vicinity of the light source.
摘要翻译： 本发明提供一种能够有效地利用来自光源的光并且显着地减少照亮被照射区域的外部的光的投影仪，从而获得优异的光利用效率。 在设置有光源和反射器的本发明的照明系统中，还设置有球面的圆形反射器，用于将从光源出射的光返回到被照射区域的外部， 而不在反射器上反射到光源。 还提供了一种平面镜或基本上球形的副反射器，用于使在光反射器被反射之后进入待照亮区域的外部的光返回到光源。 副反射器可以设置在光源附近。
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公开(公告)号：US5749642A
公开(公告)日：1998-05-12
申请号：US819408
申请日：1997-03-17
CPC分类号： H04N9/315 , F21V13/04 , F21V7/09 , G02B19/0023 , G02B19/0028 , G02B19/0047 , G03B21/2066
摘要： This invention provides a projector capable of effectively utilizing the light from the light source and significantly reducing the light illuminating the outside of the area to be illuminated, thereby attaining an excellent efficiency of light utilization. In the illuminating system of the present invention provided with a light source and a reflector, there is further provided a circular reflector of a spherical surface, for returning the light, which emerges from the light source to the outside of the area to be illuminated, without being reflected on the reflector, to the light source. Also there is provided a flat mirror or a substantially spherical sub reflector for returning the light, which proceeds to the outside of the area to be illuminated, after being reflected on the reflector, to the light source. The sub reflector may be provided in the vicinity of the light source.
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公开(公告)号：US5692819A
公开(公告)日：1997-12-02
申请号：US403549
申请日：1995-03-02
CPC分类号： F21V5/048 , F21V7/09 , H04N5/7441 , H04N9/3152 , F21W2131/406 , G02F1/1336 , H04N5/74
摘要： A projector comprising a light source having first and second high-luminance light emitting areas, an illuminating optical system for directing the light, from said light source, toward an object to be illuminated, wherein said first and second high-luminance light-emitting areas are positioned on the optical axis of said illuminating optical system, and a projection optical system for projecting the light emerging from said illuminated object, wherein said illuminating optical system is constructed in such a manner that a central area of said illuminated object is illuminated by most of the light beam from said first high-luminance light-emitting area, and a peripheral area of said illuminated object is illuminated by the remainder of the light beam from said first high-luminance light emitting area and most of the light from said second high-luminance light-emitting area.
摘要翻译： 一种投影仪，包括具有第一和第二高亮度发光区域的光源，用于将光从所述光源引导到被照明物体的照明光学系统，其中所述第一和第二高亮度发光区域 位于所述照明光学系统的光轴上，以及投影光学系统，用于投射从所述被照射物体出射的光，其中所述照明光学系统被构造成使得所述被照明物体的中心区域被大部分照射 来自所述第一高亮度发光区域的光束和所述被照明物体的外围区域被来自所述第一高亮度发光区域的光束的剩余部分照射，并且来自所述第二高亮度发光区域的大部分光线 亮度发光面积。
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4.发明授权Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit 失效板状偏振元件，设置有该元件的偏振转换单元和设置有该单元的投影仪公开(公告)号：US06229646B1
公开(公告)日：2001-05-08
申请号：US08687622
申请日：1996-07-24
IPC分类号： G02B530
CPC分类号： H04N9/3167 , G02B27/283 , G02B27/285 , H04N9/3105
摘要： This specification discloses a plate-like polarizing element for converting light into polarized light having a plurality of units arranged along a common plane across the light, each of the units being provided with dividing means for dividing the light into reflected light and transmitted light whose planes of polarization are orthogonal to each other, varying means for varying the polarized state of at least one of the reflected light and the transmitted light to thereby make the planes of polarization of the two lights coincident with each other, and reflecting means for reflecting one of the reflected light and the transmitted light and directing it substantially in the same direction as the direction of travel of the other. The specification also discloses a polarizing conversion unit provided with such plate-like polarizing element, and a projector provided with such unit.
摘要翻译： 本说明书公开了一种用于将光转换成偏振光的板状偏振元件，具有沿着共同平面布置的多个单元，每个单元设置有用于将光分解成反射光和透射光的分割装置， 的偏振方向彼此正交，用于改变反射光和透射光中的至少一个的偏振状态的改变装置，从而使两个光的偏振平面彼此一致;以及反射装置，用于反射 反射光和透射光并且基本上沿与另一个的行进方向相同的方向引导。 本说明书还公开了一种设置有这种板状偏振元件的偏光转换单元，以及设置有该单元的投影仪。
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5.发明授权Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit 失效板状偏振元件，设置有该元件的偏振转换单元和设置有该单元的投影仪
公开(公告)号：US5566367A
公开(公告)日：1996-10-15
申请号：US163564
申请日：1993-12-08
CPC分类号： H04N9/3167 , G02B27/283 , G02B27/285 , H04N9/3105
摘要： This specification discloses a plate-like polarizing element for converting light into polarized light having a plurality of units arranged along a common plane across the light, each of the units being provided with dividing means for dividing the light into reflected light and transmitted light whose planes of polarization are orthogonal to each other, varying means for varying the polarized state of at least one of the reflected light and the transmitted light to thereby make the planes of polarization of the two lights coincident with each other, and reflecting means for reflecting one of the reflected light and the transmitted light and directing it substantially in the same direction as the direction of travel of the other. The specification also discloses a polarizing conversion unit provided with such plate-like polarizing element, and a projector provided with such unit.
摘要翻译： 本说明书公开了一种用于将光转换成偏振光的板状偏振元件，具有沿着共同平面布置的多个单元，每个单元设置有用于将光分解成反射光和透射光的分割装置， 的偏振方向彼此正交，用于改变反射光和透射光中的至少一个的偏振状态的改变装置，从而使两个光的偏振平面彼此一致;以及反射装置，用于反射 反射光和透射光并且基本上沿与另一个的行进方向相同的方向引导。 本说明书还公开了一种设置有这种板状偏振元件的偏光转换单元，以及设置有该单元的投影仪。
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公开(公告)号：US5461500A
公开(公告)日：1995-10-24
申请号：US293738
申请日：1994-08-22
申请人： Sadahiko Tsuji , Hidetoshi Suzuki , Hideaki Mitsutake , Katsumi Kurematsu , Noritaka Mochizuki , Nobuo Minoura , Shigeru Kawasaki , Kazumi Kimura , Junko Shingaki
发明人： Sadahiko Tsuji , Hidetoshi Suzuki , Hideaki Mitsutake , Katsumi Kurematsu , Noritaka Mochizuki , Nobuo Minoura , Shigeru Kawasaki , Kazumi Kimura , Junko Shingaki
IPC分类号： G02B27/28 , G02B5/30 , G02F1/1335
CPC分类号： G02B27/283
摘要： This specification discloses a polarization converting apparatus having means emitting non-polarized light, and polarizing means having a light incidence surface and a light emergence surface, the polarizing means receiving the non-polarized light by the light incidence surface and causing polarized light to emerge from the light emergence surface, the size and shape of the light incidence surface being similar to the size and cross-sectional shape of the non-polarized light. The specification also discloses an optical instrument having such apparatus.
摘要翻译： 该说明书公开了一种具有发射非偏振光的装置的偏振转换装置和具有光入射表面和光出射表面的偏振装置，该偏振装置由光入射表面接收非偏振光，并使偏振光从 光出射表面，光入射表面的尺寸和形状类似于非偏振光的尺寸和横截面形状。 本说明书还公开了具有这种装置的光学仪器。
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7.发明授权
公开(公告)号：US5590942A
公开(公告)日：1997-01-07
申请号：US118460
申请日：1993-09-08
CPC分类号： G03F7/70566 , G03B21/2073 , H04N9/3167
摘要： A polarizing conversion unit is disclosed. The unit is provided with a polarizing beam splitter for separating light from a light source into first and second polarized lights differing in polarized state from each other, polarizing conversion means for varying the polarized state of the first polarized light and making it substantially coincident with the polarized state of the second polarized light, and reflecting means for reflecting the first or second polarized light, at least a portion of that surface of the outer peripheral portion of the polarizing conversion unit which is parallel to the optical path of the light functioning as a reflection surface.
摘要翻译： 公开了一种偏振转换单元。 该单元设置有偏振分束器，用于将来自光源的光分离成彼此不同的第一和第二偏振光，偏振转换装置，用于改变第一偏振光的偏振状态，并使其与 第二偏振光的极化状态，以及用于反射第一或第二偏振光的反射装置，偏振转换单元的外周部的至少一部分平行于作为光源的光的光路平行的部分 反射面。
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公开(公告)号：US5446510A
公开(公告)日：1995-08-29
申请号：US328406
申请日：1994-10-24
IPC分类号： G02B27/28 , G02F1/1335 , G02F1/13357 , H04N9/31 , G03B21/28
CPC分类号： H04N9/3167 , G02B27/283 , H04N9/3105 , G02F1/133536 , G02F1/13362 , G02F2001/13355
摘要： An image display apparatus has a radiation source, generator for generating an image by modulating a polarized light beam and directing device for directing a light beam from the radiation source toward the generator. The directing device has a conversion optical system for converting the beam from the radiation source into the polarized light beam. The conversion optical system has a polarizing beam splitter for splitting the beam from the radiation source into a first and second beams. In the conversion optical system, a 1/4 wavelength plate and a mirror are arranged so that the plane of polarization of the first beam is rotated to generate a third beam with the plane of polarization same as that of the second beam. The third beam is directed toward the generator through the polarizing beam splitter while the second beam is also directed toward the generator.
摘要翻译： 图像显示装置具有辐射源，发生器，用于通过调制偏振光束并引导用于将来自辐射源的光束引向发生器来产生图像。 引导装置具有用于将来自辐射源的光束转换成偏振光束的转换光学系统。 转换光学系统具有偏振分束器，用于将来自辐射源的光束分成第一和第二光束。 在转换光学系统中，配置1/4波长板和反射镜，使得第一光束的偏振面旋转以产生具有与第二光束的偏振面相同的第三光束。 第三束通过偏振分束器指向发生器，而第二光束也被引向发生器。
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9.发明授权Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus 失效设置有该单元的极化转换单元，偏振照明装置以及配备有该装置的投影仪
公开(公告)号：US5381278A
公开(公告)日：1995-01-10
申请号：US146801
申请日：1993-11-01
申请人： Junko Shingaki , Hideaki Mitsutake , Kazumi Kimura
发明人： Junko Shingaki , Hideaki Mitsutake , Kazumi Kimura
IPC分类号： G02B27/28 , H04N9/31 , G02B5/30 , G02F1/1335 , G03B21/14
CPC分类号： H04N9/3105 , G02B27/283 , H04N9/3167
摘要： A polarization conversion unit is disclosed. In the unit, a definitely polarized light emitted from a light source is divided into a pair of lights differing in polarized state and are caused to be incident on the optical components including the polarizing beam splitter. The plane of polarization of one of the paired polarized light is rotated to be coincident with the plane of polarization of the other light by the optical components, so that the paired lights with the same plane of polarization are caused to be separately emitted. The optical component has a plano-convex lens which has a positive power and which is arranged at an exit side where the paired lights are separately emitted. The lens has a focal point at a position further than the position of the surface to be illuminated.
摘要翻译： 公开了一种偏振转换单元。 在该单元中，从光源发射的绝对偏振光被分为一对不同偏振状态的光，并且被引入到包括偏振分束器的光学部件上。 使一对偏振光中的一个偏振光的平面旋转成与光学部件的另一个光的偏振面一致，从而使具有相同的偏振面的成对的光分别发射。 光学部件具有平面凸透镜，该平凸透镜具有正的光焦度，并且布置在分开发射配对的光的出射侧。 透镜在比要被照射的表面的位置更远的位置处具有焦点。
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10.发明授权公开(公告)号：US08559088B2
公开(公告)日：2013-10-15
申请号：US13274409
申请日：2011-10-17
申请人： Kazumi Kimura
发明人： Kazumi Kimura
IPC分类号： G02B26/08
CPC分类号： G02B26/127
摘要： An adjustment apparatus for a light source unit installed on an optical scanning apparatus including a deflector, the light source unit including a laser light source and a condensing optical element, and leading the condensed light beam to the deflector, the adjustment apparatus including: a dividing element for dividing the light beam into a plurality of light beams in at least one of a main scanning direction and a sub-scanning direction; an imaging optical element for imaging the plurality of light beams on a light receiving element; and an adjustment mechanism for adjusting a relative position ΔX between the condensing optical element and the laser light source in a direction of an optical axis of the condensing optical element, and relative positions ΔY and ΔZ between the condensing optical element and the laser light source in directions orthogonal to the optical axis of the condensing optical element.
摘要翻译： 一种安装在包括偏转器的光学扫描装置上的光源单元的调节装置，所述光源单元包括激光源和聚光光学元件，并且将会聚的光束引导到偏转器，所述调整装置包括： 元件，用于将光束分成主扫描方向和副扫描方向中的至少一个中的多个光束; 用于对光接收元件上的多个光束进行成像的成像光学元件; 以及调整机构，用于调整聚光光学元件与激光光源之间在聚光光学元件的光轴方向上的相对位置DeltaX以及聚光光学元件与激光光源之间的相对位置DeltaY和DeltaZ 与聚光光学元件的光轴正交的方向。
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