公开(公告)号：US07460299B2

公开(公告)日：2008-12-02

申请号：US11714099

申请日：2007-03-06

申请人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Yoshihiro Hagiwara

发明人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Yoshihiro Hagiwara

IPC分类号： G03B21/56

CPC分类号： G03B21/62

摘要： In a rear projection display apparatus including 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 and is configured such that a plurality of pull portions provided along horizontal and longitudinal sides of the lens sheet are pulled upward and downward, and leftward and rightward, respectively, by a pulling device provided to extend along the circumference of the lens sheet.

摘要翻译： 在包括安装在设备主体的正面上的透射型屏幕的背投显示设备和设置在设备主体内部的视频投影仪，并且在其后侧将投影视频投影在透射型屏幕上， 包括透镜片，并且被构造成使得沿着透镜片的水平和纵向侧设置的多个拉伸部分分别通过沿着透镜的圆周延伸的拉动装置被向上和向下以及向左和向右拉动 片。

公开(公告)号：US20070211222A1

公开(公告)日：2007-09-13

申请号：US11714099

申请日：2007-03-06

申请人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Yoshihiro Hagiwara

发明人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Yoshihiro Hagiwara

IPC分类号： G03B21/14

CPC分类号： G03B21/62

摘要： In a rear projection display apparatus including 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 and is configured such that a plurality of pull portions provided along horizontal and longitudinal sides of the lens sheet are pulled upward and downward, and leftward and rightward, respectively, by a pulling device provided to extend along the circumference of the lens sheet.

摘要翻译： 在包括安装在设备主体的正面上的透射型屏幕的背投显示设备和设置在设备主体内部的视频投影仪，并且在其后侧将投影视频投影在透射型屏幕上， 包括透镜片，并且被构造成使得沿着透镜片的水平和纵向侧设置的多个拉伸部分分别通过沿着透镜的圆周延伸的拉动装置被向上和向下以及向左和向右拉动 片。

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”。

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。

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.

公开(公告)号：US07535637B2

公开(公告)日：2009-05-19

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： G03B21/60 ,  G03B21/56

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.

摘要翻译： 公开了一种背投型显示装置，其中抑制了在透射型屏幕上设置的反射型菲涅耳透镜片中入射的图像光，从而形成杂散光。 用于将以预定角度范围内的入射角入射的入射光转换为平行光的菲涅尔透镜片包括排列在基板的光入射面上的多个棱镜。 每个棱镜具有用于折射入射光的折射面和用于将来自折射面的折射光朝向基板的出射面反射的反射面。 至少一些棱镜被配置为使得垂直于折射面的垂直于出射面的垂直线的角度小于棱镜位置处的入射角。

公开(公告)号：US20070216875A1

公开(公告)日：2007-09-20

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： G03B21/14

CPC分类号： G03B21/56

摘要： A rear projection display apparatus includes a transmission type screen and a video projector. The transmission type screen is installed on the front face of an apparatus main body. The video projector is disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side. The transmission type screen includes a quadrangular lens sheet and is configured such that a plurality of pull portions provided along horizontal and longitudinal sides of the lens sheet are pulled upward and downward, and leftward and rightward, respectively, by a pulling device provided to extend along the circumference of the lens sheet and the number of the pull portions on the horizontal sides of the lens sheet and the number of the pull portions on the vertical sides of the lens sheet are set so as to correspond to a ratio of a horizontal side length to a vertical side length of the lens sheet.

摘要翻译： 背投显示装置包括透射型屏幕和视频投影仪。 透射型屏幕安装在设备主体的正面上。 视频投影仪设置在设备主体内部，并且从后侧将视频投影在传输类型屏幕上。 透射型屏幕包括四边形透镜片，并且被构造成使得沿透镜片的水平和纵向侧设置的多个拉动部分分别通过设置成沿着延伸的拉动装置向上和向下以及向左和向右 透镜片的周长和透镜片的水平侧上的拉伸部的数量以及透镜片的垂直侧的拉伸部的数量被设定为与水平侧长度 到透镜片的垂直侧长度。

公开(公告)号：US20070121208A1

公开(公告)日：2007-05-31

申请号：US11583242

申请日：2006-10-18

申请人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Hiroaki Uchino ,  Minoru Makida

发明人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Hiroaki Uchino ,  Minoru Makida

IPC分类号： G03B21/60

CPC分类号： H04N5/7408 ,  G02B3/08 ,  G02B5/02 ,  G03B21/62 ,  G03B21/625

摘要： A transmissive screen includes a first board member on a light source side, the first board member including a Fresnel lens on the surface of the light source side and one of a vertical lenticular lens or a horizontal lenticular lens on the surface of a viewer side; and a second board member on the viewer side, the second board member including the other of the vertical lenticular lens or the horizontal lenticular lens. The first board member includes a diffusing layer between the Fresnel lens and the lenticular lens on the surface of the viewer side at a position close to the Fresnel lens, wherein a relation represented by θ≧tan−1(fp/2L) is obtained, where θ is a diffusion angle at which a distribution characteristic of diffused light passing through the diffusing layer is half the peak gain, fp is a pitch of the Fresnel lens and L is a light path between the diffusing layer and the lenticular lens on the surface of the viewer side.

摘要翻译： 透射屏幕包括在光源侧的第一板构件，第一板构件在光源侧的表面上包括菲涅尔透镜，并且在观察者侧的表面上包括垂直双凸透镜或水平双凸透镜中的一个; 以及在观察者侧的第二板构件，第二板构件包括垂直双凸透镜或水平双凸透镜中的另一个。 第一板构件包括在接近菲涅尔透镜的位置处的观察者侧表面上的菲涅耳透镜和双凸透镜之间的漫射层，其中由θ=tanθ-1表示的关系， （fp / 2L），其中θ是通过漫射层的漫射光的分布特性是峰值增益的一半的扩散角，fp是菲涅尔透镜的间距，L是漫射 层和观察者侧表面上的双凸透镜。

公开(公告)号：US07525728B2

公开(公告)日：2009-04-28

申请号：US11583242

申请日：2006-10-18

申请人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Hiroaki Uchino ,  Minoru Makida

发明人： Yasufumi Ogawa ,  Takaaki Iwaki ,  Hiroaki Uchino ,  Minoru Makida

IPC分类号： G03B21/60 ,  G03B21/56

CPC分类号： H04N5/7408 ,  G02B3/08 ,  G02B5/02 ,  G03B21/62 ,  G03B21/625

摘要： A transmissive screen includes a first board member on a light source side, the first board member including a Fresnel lens on the surface of the light source side and one of a vertical lenticular lens or a horizontal lenticular lens on the surface of a viewer side; and a second board member on the viewer side, the second board member including the other of the vertical lenticular lens or the horizontal lenticular lens. The first board member includes a diffusing layer between the Fresnel lens and the lenticular lens on the surface of the viewer side at a position close to the Fresnel lens, wherein a relation represented by θ≧tan−1(fp/2L) is obtained, where θ is a diffusion angle at which a distribution characteristic of diffused light passing through the diffusing layer is half the peak gain, fp is a pitch of the Fresnel lens and L is a light path between the diffusing layer and the lenticular lens on the surface of the viewer side.

摘要翻译： 透射屏幕包括在光源侧的第一板构件，第一板构件在光源侧的表面上包括菲涅尔透镜，并且在观察者侧的表面上包括垂直双凸透镜或水平双凸透镜中的一个; 以及在观察者侧的第二板构件，第二板构件包括垂直双凸透镜或水平双凸透镜中的另一个。 第一板构件在靠近菲涅尔透镜的位置处包括在菲涅耳透镜和观察者侧表面上的双凸透镜之间的漫射层，其中获得由θ> tan-1（fp / 2L）表示的关系 其中theta是通过漫射层的漫射光的分布特性的峰值增益的一半的扩散角，fp是菲涅耳透镜的间距，L是漫射层和双凸透镜之间的光路 观察者侧的表面。

公开(公告)号：US20070236791A1

公开(公告)日：2007-10-11

申请号：US11730953

申请日：2007-04-05

申请人： Minoru Makida ,  Takaaki Iwaki ,  Yasufumi Ogawa

发明人： Minoru Makida ,  Takaaki Iwaki ,  Yasufumi Ogawa

IPC分类号： G03B21/60

CPC分类号： G03B21/625 ,  B29D11/00269 ,  G03B21/10

摘要： Disclosed herein is a rear projection display apparatus, including: an apparatus body; a transmission type screen disposed on the front face of the apparatus body; and an image projection apparatus disposed in the inside of the apparatus body and configured to project an image to the transmission type screen from the rear side of the transmission type screen. In the apparatus, the transmission type screen having a three-element configuration including a horizontal lenticular screen, a vertical lenticular screen and a Fresnel screen or a two-element configuration including a horizontal lenticular screen or a fly-eye screen and a Fresnel screen; the Fresnel screen including a substrate made of a glass material and one or a plurality of ones of a lens, an antiglare layer and an internal diffusion layer formed directly on the substrate but provided not by lamination.

摘要翻译： 这里公开了一种背投显示装置，包括：装置主体; 设置在所述装置主体的前表面上的透射型屏幕; 以及设置在设备主体的内部并被配置为从传输类型屏幕的后侧将图像投影到传输类型屏幕的图像投影设备。 在该装置中，具有包括水平双凸透镜屏幕，垂直双凸透镜屏幕和菲涅尔屏幕或包括水平双凸透镜屏幕或飞眼屏幕和菲涅尔屏幕的双元件配置的三元件配置的透射型屏幕; 菲涅耳屏幕包括由玻璃材料制成的基板和直接形成在基板上而不是通过层叠形成的透镜，防眩层和内部扩散层中的一个或多个。