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1. 发明授权

US5944401A Optical block and liquid crystal projector 失效
标题翻译：光学块和液晶投影机
公开(公告)号：US5944401A
公开(公告)日：1999-08-31
申请号：US995937
申请日：1997-12-22
申请人： Kyoichi Murakami , Takeyo Nakagawa , Atsushi Iwamura , Takaaki Iwaki
发明人： Kyoichi Murakami , Takeyo Nakagawa , Atsushi Iwamura , Takaaki Iwaki
IPC分类号： G02B5/04 , H04N5/74 , H04N9/31 , G03B21/14
CPC分类号： G02B27/283 , G02B27/1073 , G02B27/145 , H04N9/3105
摘要： An optical block which is light in weight and low in price, and has optical path distances equivalent to those obtained with glass has an outside form composed by arranging a polyhedron 8a having a surface of incidence for a blue ray B, a polyhedron 8b having a surface of incidence for a red ray R and a polyhedron 8c having a surface of incidence for a green ray G which are configured as transparent plastic members, and optical members 9a and 9b configured as dichroic filters formed as glass members. The polyhedrons 8a to 8c are coupled by way of the optical members 9a and 9b so as to compose an optical block as a monochromator prism block.
摘要翻译：重量轻且价格低廉，光路距离等同于玻璃制成的光学块的光学块具有通过布置具有用于蓝光B的入射面的多面体8a构成的外形，多面体8b具有具有作为透明塑料部件的绿色光线G的入射面的红色线圈R和多面体8c的入射面以及构成为玻璃构件的二向色滤光片的光学部件9a，9b。多面体8a至8c通过光学构件9a和9b耦合，以便构成作为单色棱镜块的光学块。

2. 发明授权

US07379240B2 Rear projection-type screen and rear projection-type image display device 失效
标题翻译：背投式屏幕和背投式图像显示装置
公开(公告)号：US07379240B2
公开(公告)日：2008-05-27
申请号：US10521610
申请日：2003-07-15
申请人： Takaaki Iwaki , Kyoichi Murakami
发明人： Takaaki Iwaki , Kyoichi Murakami
IPC分类号： G03B21/60 , G03B21/56
CPC分类号： G03B21/62 , G03B21/625
摘要： A rear projection-type screen includes two sheet-like members having lenses prevented from being deformed and scratched. In the rear projection-type screen (5) for passing and focusing image light L emitted from an image light source (3), two sheet-like members (a lenticular lens sheet 7 and a Fresnel lens sheet 8) each made of a transparent material and having minute lenses (9) and (11) formed on at least one surface thereof are disposed such that their surfaces (7b) and (8a) with the lenses formed thereon confront each other, and a plurality of spacers (14), (14), . . . are disposed at appropriate spaced intervals between the confronting lenses of the two sheet-like members within an effective screen area (5a) for passing and focusing the image light thereon.
摘要翻译：背投式屏幕包括具有防止变形和划伤的镜片的两个片状构件。在用于使从图像光源（3）发射的图像光L的通过和聚焦的后投影型屏幕（5）中，每个由透明的（由透明的）形成的两个片状部件（双凸透镜片7和菲涅尔透镜片8）在其至少一个表面上形成的具有微小透镜（9）和（11）的材料被设置成使得它们在其上形成的透镜的表面（7b）和（8a）彼此面对，并且多个间隔物（14 ），（14），。。。在有效屏幕区域（5a）内的两个片状构件的相对透镜之间以适当间隔设置，用于使图像光在其上通过和聚焦。

3. 发明申请

US20060126172A1 Rear projection-type screen and rear projection-type image display device 失效
标题翻译：背投式屏幕和背投式图像显示装置
公开(公告)号：US20060126172A1
公开(公告)日：2006-06-15
申请号：US10521610
申请日：2003-07-15
申请人： Takaaki Iwaki , Kyoichi Murakami
发明人： Takaaki Iwaki , Kyoichi Murakami
IPC分类号： G03B21/60
CPC分类号： G03B21/62 , G03B21/625
摘要： A rear projection-type screen includes two sheet-like members having lenses prevented from being deformed and scratched. In the rear projection-type screen (5) for passing and focusing image light L emitted from an image light source (3), two sheet-like members (a lenticular lens sheet 7 and a Fresnel lens sheet 8) each made of a transparent material and having minute lenses (9) and (11) formed on at least one surface thereof are disposed such that their surfaces (7b) and (8a) with the lenses formed thereon confront each other, and a plurality of spacers (14), (14), . . . are disposed at appropriate spaced intervals between the confronting lenses of the two sheet-like members within an effective screen area (5a) for passing and focusing the image light thereon.
摘要翻译：背投式屏幕包括具有防止变形和划伤的镜片的两个片状构件。在用于使从图像光源（3）发射的图像光L的通过和聚焦的后投影型屏幕（5）中，每个由透明的（由透明的）形成的两个片状部件（双凸透镜片7和菲涅尔透镜片8）在其至少一个表面上形成的具有微小透镜（9）和（11）的材料被设置成使得它们在其上形成的透镜的表面（7b）和（8a）彼此面对，并且多个间隔物（14 ），（14），。。。在有效屏幕区域（5a）内的两个片状构件的相对透镜之间以适当间隔设置，用于使图像光在其上通过和聚焦。

4. 发明授权

US6144492A Optical block and display unit 失效
标题翻译：光学块和显示单元
公开(公告)号：US6144492A
公开(公告)日：2000-11-07
申请号：US101774
申请日：1998-12-21
申请人： Atsushi Iwamura , Takaaki Iwaki , Hideki Katsuragawa , Toru Kawai
发明人： Atsushi Iwamura , Takaaki Iwaki , Hideki Katsuragawa , Toru Kawai
IPC分类号： G02B27/14 , G02B27/28 , H04N5/74 , H04N9/31 , G02B5/30
CPC分类号： G02B27/285 , G02B27/1046 , G02B27/123 , G02B27/145 , G02B27/149 , G02B27/283 , H04N9/3105 , H04N9/3167 , H04N5/7441
摘要： An optical block, which may be of a small size, for applying light efficiently to a display device such as a liquid crystal panel, and a display apparatus. The optical block (1) has a polarizing beam splitter (3) mounted on baseboard (2) at a predetermined angle with respect to light applied from a light source (10), for passing a P wave toward an exit side and reflecting an S wave, reflecting device (4) mounted on the baseboard (2) for reflecting the reflected S wave toward the exit side, and plane-of-polarization rotating device (5) mounted on the baseboard (2) for rotating the plane of polarization of the S wave reflected toward the exit side. The display apparatus has a light source (10), a first multilens array (12), the optical block (1), a second multilens array (13), separating device (14, 19) for separating emitted light into red light (R), green light (G), and blue light (B), light modulating device (17, 21, 26) for generating modulated red light, modulated green light, and modulated blue light based on the separated light, and emitting device (18) for combining the modulated red light, modulated green light, and modulated blue light and emitting combined modulated light. The optical block is of a thin structure so that it may be a space saver and lightweight. Optical paths from the light source to liquid crystal panels or the like may be reduced to reduce the size of the display apparatus.
摘要翻译： PCT No.PCT / JP97 / 04364 Sec。 371 1998年12月21日第 102（e）日期1998年12月21日PCT 1997年11月28日PCT公布。第WO98 / 23993号公报日期1998年6月4日光学块（其可以是小尺寸）用于将光线有效地施加到诸如液晶面板的显示装置和显示装置。光学块（1）具有相对于从光源（10）施加的光以预定角度安装在基板（2）上的偏振分束器（3），用于使P波朝向出射侧反射并反射S 安装在基板（2）上的反射装置（4），用于将反射的S波反射到出射侧;以及安装在基板（2）上的用于旋转偏振面的偏振旋转装置（5） S波反射到出口侧。显示装置具有光源（10），第一多光阵列（12），光学块（1），第二多光阵列（13），用于将发射的光分离为红光的分离装置（14,19）），绿光（G）和蓝光（B），用于产生调制红光的光调制装置（17,21,26），调制绿光和基于分离光的调制蓝光，以及发光装置（18 ），用于组合调制的红光，调制的绿光和调制的蓝光并发射组合的调制光。光学块具有薄的结构，因此它可以是节省空间并且重量轻。可以减少从光源到液晶面板等的光路以减小显示装置的尺寸。

5. 发明授权

US07554729B2 Rear projection display apparatus and transmission type screen 失效
标题翻译：背投显示装置和传输型屏幕
公开(公告)号：US07554729B2
公开(公告)日：2009-06-30
申请号：US11706960
申请日：2007-02-16
申请人： Takao Sumida , Takaaki Iwaki
发明人： Takao Sumida , Takaaki Iwaki
IPC分类号： G03B21/56
CPC分类号： H04N5/74 , G03B21/56 , G03B21/62 , H04N9/3141
摘要： A rear projection display apparatus is provided which includes a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof. The transmission type screen includes a lens sheet having respective ribs attached to upper and lower sides thereof, the ribs having increased thickness, and an upper bracket and a lower bracket attached to the lens sheet so as to retainably embrace the respective associated ribs. The upper bracket is fixed to a frame on an apparatus main body side, whereby the lens sheet is installed so as to be pulled downward by the weight of the lower bracket. The rib is formed by laminating the same materials as a substrate of the lens sheet.
摘要翻译：提供了一种背投显示装置，其包括安装在装置主体的前表面上的透射型屏幕，以及设置在装置主体内部的视频投影仪，并且在其后侧将透视型屏幕投影。透射型屏幕包括透镜片，其具有附接到其上侧和下侧上的各个肋，所述肋具有增加的厚度，以及附接到透镜片的上支架和下支架，以便可保持地包围相应的相关肋。上支架固定在装置主体侧的框架上，由此透镜片被安装成通过下支架的重量被向下拉。肋通过层叠与透镜片的基板相同的材料而形成。

6. 发明申请

US20070206161A1 Rear projection display apparatus and transmission type screen 失效
标题翻译：背投显示装置和传输型屏幕
公开(公告)号：US20070206161A1
公开(公告)日：2007-09-06
申请号：US11706960
申请日：2007-02-16
申请人： Takao Sumida , Takaaki Iwaki
发明人： Takao Sumida , Takaaki Iwaki
IPC分类号： G03B21/14
CPC分类号： H04N5/74 , G03B21/56 , G03B21/62 , H04N9/3141
摘要： A rear projection display apparatus is provided which includes a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof. The transmission type screen includes a lens sheet having respective ribs attached to upper and lower sides thereof, the ribs having increased thickness, and an upper bracket and a lower bracket attached to the lens sheet so as to retainably embrace the respective associated ribs. The upper bracket is fixed to a frame on an apparatus main body side, whereby the lens sheet is installed so as to be pulled downward by the weight of the lower bracket. The rib is formed by laminating the same materials as a substrate of the lens sheet.
摘要翻译：提供了一种背投显示装置，其包括安装在装置主体的前表面上的透射型屏幕，以及设置在装置主体内部的视频投影仪，并且在其后侧将透视型屏幕投影。透射型屏幕包括透镜片，其具有附接到其上侧和下侧上的各个肋，所述肋具有增加的厚度，以及附接到透镜片的上支架和下支架，以便可保持地包围相应的相关肋。上支架固定在装置主体侧的框架上，由此透镜片被安装成通过下支架的重量被向下拉。肋通过层叠与透镜片的基板相同的材料而形成。

7. 发明申请

US20060132911A1 Transmission type screen and rear projection display 审中-公开
标题翻译：传输型屏幕和背投显示
公开(公告)号：US20060132911A1
公开(公告)日：2006-06-22
申请号：US11300903
申请日：2005-12-15
申请人： Yasufumi Ogawa , Takaaki Iwaki , Hiroaki Uchino , Satoru Murata , Minoru Makida
发明人： Yasufumi Ogawa , Takaaki Iwaki , Hiroaki Uchino , Satoru Murata , Minoru Makida
IPC分类号： G03B21/60
CPC分类号： G03B21/10 , G03B21/625
摘要： In a transmission type screen structured to have at least two layers, namely, a first layer having a lenticular lens and having black stripes on the viewer's side relative to the lenticular lens and a second layer adjacent to the first layer, which are disposed sequentially as viewed from the viewer's side, the focal distance of the lenticular lens of the first layer is so set that external light having been skewly incident from the viewer's side and having passed through the gaps between the black stripes of the first layer is reflected on the lens surface of the lenticular lens of the first layer to impinge on the black stripes, whereby the “waviness” due to the light reflected by the second layer can be suppressed more effectively.
摘要翻译：在构造成具有至少两层的透射型屏幕中，即具有柱状透镜的第一层和相对于双凸透镜的观察者侧上的黑色条纹以及与第一层相邻的第二层，其依次设置为从观察者侧观察，第一层的双凸透镜的焦距被设定为使得从观察者侧偏斜地入射并穿过第一层的黑色条纹之间的间隙的外部光被透镜第一层的双凸透镜的表面撞击在黑色条纹上，由此可以更有效地抑制由于由第二层反射的光引起的“波纹”。

8. 发明授权

US07499213B2 Rear projection display apparatus and transmission type screen 失效
标题翻译：背投显示装置和传输型屏幕
公开(公告)号：US07499213B2
公开(公告)日：2009-03-03
申请号：US11714111
申请日：2007-03-06
申请人： Hiroaki Uchino , Takaaki Iwaki , Yasufumi Ogawa
发明人： Hiroaki Uchino , Takaaki Iwaki , Yasufumi Ogawa
IPC分类号： G03B21/56 , G03B21/22 , H04N5/64
CPC分类号： G03B21/56
摘要： A rear projection display apparatus includes a transmission type screen, a video projector, a lens sheet, a plurality of pull portions, and a pulling device. The transmission type screen is installed on a front face of an apparatus main body. The video projector is disposed inside the apparatus main body for projecting a video on the transmission type screen from a rear side. The plurality of pull portions are provided along horizontal and vertical sides of the lens sheet and are pulled by a pulling device which extends along a perimeter of the lens sheet.
摘要翻译：背投显示装置包括透射型屏幕，视频投影仪，透镜片，多个拉动部分和拉动装置。透射型屏幕安装在设备主体的正面上。视频投影仪设置在装置本体内部，用于从后侧将视频投影在透射型屏幕上。多个拉动部分沿着透镜片的水平和垂直侧设置并且被沿着透镜片的周边延伸的拉动装置拉动。

9. 发明授权

US07116498B2 Projection optical system and image projection apparatus 失效
标题翻译：投影光学系统和图像投影仪
公开(公告)号：US07116498B2
公开(公告)日：2006-10-03
申请号：US11073973
申请日：2005-03-07
申请人： Jun Nishikawa , Nobuhiko Nishiki , Yasunori Kuratomi , Tetsuya Kita , Takaaki Iwaki
发明人： Jun Nishikawa , Nobuhiko Nishiki , Yasunori Kuratomi , Tetsuya Kita , Takaaki Iwaki
IPC分类号： G02B13/04
CPC分类号： G03B21/10 , G02B13/18 , G02B17/0856 , G03B21/28
摘要： A projection optical system and an image projection apparatus that are small in size and can achieve projection with a wide angle while a good image forming performance is assured includes a first lens group having a negative refracting power and a second lens group also having a negative refracting power. The first and second lens groups are arranged in order from the projection side. The first lens group includes a negative meniscus lens that has a concave surface directed to the projection side and formed as an aspherical reflecting surface.
摘要翻译：投影光学系统和图像投影装置的尺寸小并且可以在确保良好的图像形成性能的同时实现广角的投影包括具有负折射率的第一透镜组和也具有负折射率的第二透镜组功率。第一透镜组和第二透镜组从投影侧依次布置。第一透镜组包括具有指向投影侧并且形成为非球面反射表面的凹面的负凹凸透镜。

10. 发明申请

US20060109569A1 Fresnel lens sheet, transmission type screen and rear projection type display apparatus 失效
公开(公告)号：US20060109569A1
公开(公告)日：2006-05-25
申请号：US11262768
申请日：2005-11-01
申请人： Yasufumi Ogawa , Takaaki Iwaki , Hiroaki Uchino
发明人： Yasufumi Ogawa , Takaaki Iwaki , Hiroaki Uchino
IPC分类号： G02B3/08
CPC分类号： G03B21/10 , G02B3/08 , G02B5/045 , G02B27/0955 , G02B27/0972 , G03B21/625
摘要： A rear projection type display apparatus is disclosed wherein image light reflected upon entrance thereof into a Fresnel lens sheet of the reflection type provided on a transmission type screen is suppressed from making stray light. A Fresnel lens sheet for converting incident light incoming at an incident angle within a predetermined angular range into parallel light includes a plurality of prisms arrayed on the light entrance face of a substrate. Each prism has a refracting face for refracting the incident light and a reflecting face for reflecting the refracted light from the refracting face toward the emergence face of the substrate. At least some of the prisms are configured such that the angle of a perpendicular to the refracting face with respect to a perpendicular to the emergence face is smaller than the incident angle at the position of the prism.

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