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1.发明授权Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus 有权投影仪光学单元，投影型图像显示装置和背投型图像显示装置公开(公告)号：US07210797B2
公开(公告)日：2007-05-01
申请号：US10865643
申请日：2004-06-09
申请人： Koji Hirata , Shuji Kato , Masahiko Yatsu , Tsutomu Nakashima , Hidehiro Ikeda
发明人： Koji Hirata , Shuji Kato , Masahiko Yatsu , Tsutomu Nakashima , Hidehiro Ikeda
CPC分类号： G03B21/006
摘要： In a projection type image display apparatus, a projector optical unit for projecting an image onto a screen while magnifying a size of the image to be projected with respect to an original size of the image displayed by an image forming element, has a group of lenses for magnifying the size of the image with respect to the original size thereof, and an optical path extending from the image forming element to the screen to transmit the image along the optical path.
摘要翻译： 在投影型图像显示装置中，投影光学单元用于将图像投影到屏幕上，同时相对于由图像形成元件显示的图像的原始尺寸放大要投影的图像的尺寸，具有一组透镜 用于相对于其原始尺寸放大图像的尺寸，以及从图像形成元件延伸到屏幕以沿着光路传输图像的光路。
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2.发明申请Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus 有权投影仪光学单元，投影型图像显示装置和背投型图像显示装置公开(公告)号：US20050036120A1
公开(公告)日：2005-02-17
申请号：US10865643
申请日：2004-06-09
申请人： Koji Hirata , Shuji Kato , Masahiko Yatsu , Tsutomu Nakashima , Hidehiro Ikeda
发明人： Koji Hirata , Shuji Kato , Masahiko Yatsu , Tsutomu Nakashima , Hidehiro Ikeda
IPC分类号： G02B13/18 , G02B13/16 , G02B13/24 , G02B21/00 , G02B27/18 , G03B21/00 , G03B21/10 , G03B21/20 , H04N9/31
CPC分类号： G03B21/006
摘要： In a projection type image display apparatus, a projector optical unit for projecting an image onto a screen while magnifying a size of the image to be projected with respect to an original size of the image displayed by an image forming element, has a group of lenses for magnifying the size of the image with respect to the original size thereof, and an optical path extending from the image forming element to the screen to transmit the image along the optical path.
摘要翻译： 在投影型图像显示装置中，投影光学单元用于将图像投影到屏幕上，同时相对于由图像形成元件显示的图像的原始尺寸放大要投影的图像的尺寸，具有一组透镜 用于相对于其原始尺寸放大图像的尺寸，以及从图像形成元件延伸到屏幕以沿着光路传输图像的光路。
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公开(公告)号：US20050146786A1
公开(公告)日：2005-07-07
申请号：US10953413
申请日：2004-09-28
申请人： Hidehiro Ikeda , Koji Hirata , Shuji Kato , Masahiro Yamamoto , Masahiko Yatsu
发明人： Hidehiro Ikeda , Koji Hirata , Shuji Kato , Masahiro Yamamoto , Masahiko Yatsu
IPC分类号： G02B13/16 , G02B27/14 , G02F1/13 , G02F1/1335 , G03B21/10 , G03B21/14 , H04N5/74 , H04N17/00 , G03B21/56 , G02B3/00 , G02B9/00
CPC分类号： G02B27/1046 , G02B13/16 , G02B27/145 , G02B27/149 , H04N5/74 , H04N5/7441 , H04N9/3105 , H04N9/3141 , H04N9/3185
摘要： A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a major cause of image trapezoidal distortion. The rear projection image display apparatus has a projection lens system which includes a first lens group with positive refractive power and a second lens group which further enlarges an image enlarged by the first lens group. The projection lens system enlarges and projects an image displayed on an image display device, on a transmission screen. No reflection mirror is provided between the second lens group and the transmission screen and the image enlarged by the second lens group is directly projected on the transmission screen.
摘要翻译： 一种紧凑的背投影像显示装置，其中投影光学系统中的投影距离大大减小，并且不使用反射镜，从而消除了图像梯形失真的主要原因。 背投影像显示装置具有投影透镜系统，该投影透镜系统包括具有正屈光力的第一透镜组和第二透镜组，该第二透镜组进一步放大由第一透镜组放大的图像。 投影透镜系统在透射屏幕上放大并投影显示在图像显示装置上的图像。 在第二透镜组和透射屏之间没有设置反射镜，并且由第二透镜组放大的图像直接投影在透射屏上。
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公开(公告)号：US07365907B2
公开(公告)日：2008-04-29
申请号：US10953413
申请日：2004-09-28
申请人： Hidehiro Ikeda , Koji Hirata , Shuji Kato , Masahiro Yamamoto , Masahiko Yatsu
发明人： Hidehiro Ikeda , Koji Hirata , Shuji Kato , Masahiro Yamamoto , Masahiko Yatsu
CPC分类号： G02B27/1046 , G02B13/16 , G02B27/145 , G02B27/149 , H04N5/74 , H04N5/7441 , H04N9/3105 , H04N9/3141 , H04N9/3185
摘要： A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a major cause of image trapezoidal distortion. The rear projection image display apparatus has a projection lens system which includes a first lens group with positive refractive power and a second lens group which further enlarges an image enlarged by the first lens group. The projection lens system enlarges and projects an image displayed on an image display device, on a transmission screen. No reflection mirror is provided between the second lens group and the transmission screen and the image enlarged by the second lens group is directly projected on the transmission screen.
摘要翻译： 一种紧凑的背投影像显示装置，其中投影光学系统中的投影距离大大减小，并且不使用反射镜，从而消除了图像梯形失真的主要原因。 背投影像显示装置具有投影透镜系统，该投影透镜系统包括具有正屈光力的第一透镜组和第二透镜组，该第二透镜组进一步放大由第一透镜组放大的图像。 投影透镜系统在透射屏幕上放大并投影显示在图像显示装置上的图像。 在第二透镜组和透射屏之间没有设置反射镜，并且由第二透镜组放大的图像直接投影在透射屏上。
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公开(公告)号：US07172292B2
公开(公告)日：2007-02-06
申请号：US10865549
申请日：2004-06-09
申请人： Hidehiro Ikeda , Shuji Kato , Koji Hirata , Naoyuki Ogura
发明人： Hidehiro Ikeda , Shuji Kato , Koji Hirata , Naoyuki Ogura
CPC分类号： G02B13/02
摘要： An inexpensive projection lens unit in a rear projection type image display system, having a short focal distance (wide angle of viewing field), high focus and high contrast, and as well, including a power lens made of a glass material having a high refractive index in a range from 1.63 to 1.70 and an Abbe's number of not less than 50 with an optimized incident and emergent configuration in order to satisfactorily correct aberration with a enhanced focusing performance even with a shortened focal distance. Further, the power lens having a high refractive index can exhibit a high power, and accordingly, can carry out satisfactory aberration correction by optimizing the aspheric degree of a plastic lens even though the length of back focus is increased for enhancing the contrast.
摘要翻译： 背投影型图像显示系统中的廉价的投影透镜单元，具有短焦距（观察视角宽），高焦距和高对比度，并且还包括由具有高折射率的玻璃材料制成的功率透镜 指数在1.63至1.70之间，阿贝数不少于50，具有优化的入射和紧急配置，以便即使缩短焦距也能以更好的聚焦性能令人满意地校正像差。 此外，具有高折射率的功率透镜可以表现出高功率，因此，即使增加后焦距的长度以增强对比度，也可以通过优化塑料透镜的非球面度来进行令人满意的像差校正。
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公开(公告)号：US07244030B2
公开(公告)日：2007-07-17
申请号：US10922225
申请日：2004-08-20
申请人： Koji Hirata , Shuji Kato , Hidehiro Ikeda , Masahiro Yamamoto
发明人： Koji Hirata , Shuji Kato , Hidehiro Ikeda , Masahiro Yamamoto
CPC分类号： H04N9/3105 , G03B21/10
摘要： The present invention relates to a rear projection type image display device comprising projection lenses (2, 3) for projecting an image displayed on an image display element onto a transmission type screen (6) on a larger scale, an optical path turn-back mirror (7) for turning back halfway a light beam projected from the projection lenses, and a drive circuit for displaying an image on the image display element, that are fixedly housed within a housing (5). When a diagonal size of the transmission type screen (6), the depth of the housing (5), and the length from a lower end of the screen (6) to a lower end of the housing (5), are assumed to be SS (inch), D (inch), and L (inch), respectively, the following conditions are satisfied: SS >40, D≦SS/3.0, L≦SS/10.9.
摘要翻译： 背投影型图像显示装置技术领域本发明涉及一种背投影型图像显示装置，其包括用于将显示在图像显示元件上的图像大规模投影到透射型屏幕（6）上的投影透镜（2,3），光路反向反射镜 （7），用于将从投影透镜投射的光束中途回转，以及用于在图像显示元件上显示图像的驱动电路，其固定地容纳在壳体（5）内。 当透射型屏幕（6）的对角线尺寸，壳体（5）的深度以及从屏幕（6）的下端到壳体（5）的下端的长度被假定为 SS（英寸），D（英寸）和L（英寸），满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> SS> 40， D <= SS / 3.0，L <= SS / 10.9。<？in-line-formula description =“In-line Formulas”end =“tail”？>
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公开(公告)号：US20050117124A1
公开(公告)日：2005-06-02
申请号：US10922225
申请日：2004-08-20
申请人： Koji Hirata , Shuji Kato , Hidehiro Ikeda , Masahiro Yamamoto
发明人： Koji Hirata , Shuji Kato , Hidehiro Ikeda , Masahiro Yamamoto
CPC分类号： H04N9/3105 , G03B21/10
摘要： The present invention relates to a rear projection type image display device comprising projection lenses (2, 3) for projecting an image displayed on an image display element onto a transmission type screen (6) on a larger scale, an optical path turn-back mirror (7) for turning back halfway a light beam projected from the projection lenses, and a drive circuit for displaying an image on the image display element, that are fixedly housed within a housing (5). When a diagonal size of the transmission type screen (6), the depth of the housing (5), and the length from a lower end of the screen (6) to a lower end of the housing (5), are assumed to be SS (inch), D (inch), and L (inch), respectively, the following conditions are satisfied: SS>40, D≦SS/3.0, L≦SS/10.9
摘要翻译： 背投影型图像显示装置技术领域本发明涉及一种背投影型图像显示装置，其包括用于将显示在图像显示元件上的图像大规模投影到透射型屏幕（6）上的投影透镜（2,3），光路反向反射镜 （7），用于将从投影透镜投射的光束中途回转，以及用于在图像显示元件上显示图像的驱动电路，其固定地容纳在壳体（5）内。 当透射型屏幕（6）的对角线尺寸，壳体（5）的深度以及从屏幕（6）的下端到壳体（5）的下端的长度被假定为 SS（英寸），D（英寸）和L（英寸），满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> SS> 40， D <= SS / 3.0，L <= SS / 10.9 <？in-line-formula description =“In-line Formulas”end =“tail”？>
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8.发明授权Projection lens apparatus and rear projection type image display apparatus using the same 有权投影透镜装置和使用其的背投型图像显示装置公开(公告)号：US06768594B2
公开(公告)日：2004-07-27
申请号：US10113337
申请日：2002-03-28
申请人： Daisuke Imafuku , Naoyuki Ogura , Kazunari Nakagawa , Koji Hirata , Hidehiro Ikeda , Shuji Kato
发明人： Daisuke Imafuku , Naoyuki Ogura , Kazunari Nakagawa , Koji Hirata , Hidehiro Ikeda , Shuji Kato
IPC分类号： G02B300
CPC分类号： G02B13/08
摘要： In a projection lens, there are arranged in order from a screen side, a first lens group including a meniscus lens having a convex lens surface in a central portion toward a screen with refracting power, a second lens group including a lens having a convex lens surface in a central portion toward a video generating source, a third lens group including a lens having convex lens surfaces in both sides with positive refracting power, a fourth lens group including a lens having a convex lens surface in a central portion toward the video generating source with positive refracting power, and a fifth lens group including a lens having a concave lens surface toward the screen with negative refracting power. An entrance pupil is arranged between incident and emitting surfaces of a power lens.
摘要翻译： 在投影透镜中，从屏幕侧依次配置第一透镜组，第一透镜组包括具有中心部分的具有折射力的屏幕的凸透镜表面的弯月形透镜;第二透镜组，包括具有凸透镜的透镜 在朝向视频产生源的中心部分中的表面;第三透镜组，包括具有正折射力的两侧具有凸透镜表面的透镜;第四透镜组，包括在朝向视频产生的中心部分具有凸透镜表面的透镜 具有正折射力的源;以及第五透镜组，包括具有朝向屏幕的凹透镜表面的透镜，具有负折射率。 入射光瞳配置在功率透镜的入射面和发射面之间。
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9.发明授权公开(公告)号：US07404646B2
公开(公告)日：2008-07-29
申请号：US11060251
申请日：2005-02-18
申请人： Yuriko Inadachi , Shuji Kato , Hidehiro Ikeda , Naoyuki Ogura , Koji Hirata
发明人： Yuriko Inadachi , Shuji Kato , Hidehiro Ikeda , Naoyuki Ogura , Koji Hirata
摘要： A projection lens apparatus includes a plurality of lenses, for enlarging and projecting, onto a screen, an original image displayed on an image generation source. The plurality of lenses are arranged, beginning with the lens nearest the screen, as first to sixth lens groups. The fourth lens group includes one meniscus lens that has a positive refracting power and has a concave lens surface directed toward the screen. The concave lens surface of the meniscus lens included in the fourth group lens has a curvature in the vicinity of an outer portion of the concave lens surface that is smaller than a curvature in a predetermined area of the concave lens surface defined between a light axis of the concave lens surface of the meniscus lens and the smaller curvature of the concave lens surface in the vicinity of the outer portion of the concave lens surface.
摘要翻译： 投影透镜装置包括多个透镜，用于将显示在图像产生源上的原始图像放大并投影到屏幕上。 多个透镜从最靠近屏幕的透镜开始设置为第一至第六透镜组。 第四透镜组包括具有正折射率的一个弯月形透镜，并且具有指向屏幕的凹透镜表面。 包括在第四组透镜中的凹凸透镜的凹透镜表面在凹透镜表面的外部附近具有小于在凹透镜表面的预定区域中的曲率的曲率，所述凹透镜表面的光轴 凹透镜的凹透镜表面和凹透镜表面在凹透镜表面的外部附近的较小曲率。
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公开(公告)号：US07347566B2
公开(公告)日：2008-03-25
申请号：US11649544
申请日：2007-01-03
申请人： Hidehiro Ikeda , Shuji Kato , Koji Hirata , Naoyuki Ogura
发明人： Hidehiro Ikeda , Shuji Kato , Koji Hirata , Naoyuki Ogura
CPC分类号： G02B13/02
摘要： An inexpensive projection lens unit in a rear projection type image display system, having a short focal distance (wide angle of viewing field), high focus and high contrast, and as well, including a power lens made of a glass material having a high refractive index in a range from 1.63 to 1.70 and an Abbe's number of not less than 50 with an optimized incident and emergent configuration in order to satisfactorily correct aberration with a enhanced focusing performance even with a shortened focal distance. Further, the power lens having a high refractive index can exhibit a high power, and accordingly, can carry out satisfactory aberration correction by optimizing the aspheric degree of a plastic lens even though the length of back focus is increased for enhancing the contrast.
摘要翻译： 背投影型图像显示系统中的廉价的投影透镜单元，具有短焦距（观察视角宽），高焦距和高对比度，并且还包括由具有高折射率的玻璃材料制成的功率透镜 指数在1.63至1.70之间，阿贝数不少于50，具有优化的入射和紧急配置，以便即使缩短焦距也能以更好的聚焦性能令人满意地校正像差。 此外，具有高折射率的功率透镜可以表现出高功率，因此，即使增加后焦距的长度以增强对比度，也可以通过优化塑料透镜的非球面度来进行令人满意的像差校正。
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