公开(公告)号：US5618095A

公开(公告)日：1997-04-08

申请号：US416001

申请日：1995-04-04

申请人： Keiji Kashima ,  Mitsuru Fukamachi ,  Naoki Yoshida

发明人： Keiji Kashima ,  Mitsuru Fukamachi ,  Naoki Yoshida

IPC分类号： F21V7/00 ,  F21V7/09

CPC分类号： F21V7/005 ,  F21V7/09

摘要： At least part of a reflector surface covering a rod-shaped light source is a continuous body having such a shape that in a plane perpendicular to the central axis of the rod-shaped light source, a ray emitted from a light emitting point on the surface of the rod-shaped light source in the tangential direction going away from a light conducting plate is reflected back to the vicinity of the light emitting point. According to another aspect, at least part of a reflector surface covering a rod-shaped light source located between the rod-shaped light source and the light conducting plate is part of a parabola whose focus is substantially located on the side face of the light conducting plate in a plane perpendicular to the central axis of the rod-shaped light source.

摘要翻译： 覆盖杆状光源的反射器表面的至少一部分是具有这样一种形状的连续体，即在垂直于棒状光源的中心轴的平面中，从表面上的发光点发射的光线 沿着远离导光板的切线方向的棒状光源被反射回到发光点附近。 根据另一方面，覆盖位于棒状光源和导光板之间的棒状光源的反射器表面的至少一部分是抛物线的一部分，其焦点基本上位于导光板的侧面 在与棒状光源的中心轴垂直的平面上。

公开(公告)号：US5688035A

公开(公告)日：1997-11-18

申请号：US721848

申请日：1996-09-30

申请人： Keiji Kashima ,  Naoki Yoshida

发明人： Keiji Kashima ,  Naoki Yoshida

IPC分类号： F21V8/00 ,  G02B6/00 ,  G02F1/13357 ,  F21V33/00

CPC分类号： G02B6/0031 ,  G02B6/0043 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0071 ,  G02B6/0088 ,  G02F1/133615

摘要： A light reflector covers a linear light source that is disposed adjacent to a light incident end face of a light conducting plate. The interval between the end portions of the light reflector adjacent to the light incident end face of the light conducting plate is made smaller than the thickness of the light incident end face. Alternatively, the light-exit-side portion of the light reflector located between the linear light source and the light incident end face of the light conducting plate is disposed within the thickness of the light incident end face.

摘要翻译： 光反射器覆盖与导光板的光入射端面相邻设置的线性光源。 导光板的与光入射端面相邻的光反射体的端部之间的间隔比光入射端面的厚度小。 或者，位于导光板的光入射端面之间的光反射体的光出射侧部分配置在光入射端面的厚度内。

公开(公告)号：US5730518A

公开(公告)日：1998-03-24

申请号：US466747

申请日：1995-06-06

申请人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

发明人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

IPC分类号： F21V8/00 ,  G02B6/00

CPC分类号： G02B6/0051 ,  G02B6/0053 ,  G02B6/0038 ,  G02B6/0068 ,  G02B6/0071

摘要： In a backlighting device for use with display panels that comprises a light conducting plate made of a light-transmissive material, one of the major faces of said light conducting plate being provided with a light diffusing capability and covered with a specular or light diffusing/reflecting plate, and a linear light source provided in proximity to the end portion of at least one side of said light conducting plate, the improvement wherein at least one sheet that is made of a light-transmissive material and that has a multiple of raised structures having straight ridgelines at minute intervals on the same side in such a manner that the ridgelines are substantially parallel to one another or at least one sheet that is made of a light-transmissive material and that has a multiple of pyramidal or conical projecting structures at minute intervals on the same side, said projecting structures having portions of such a shape that the vertical angles are substantially the same, is provided on the exit face of the light conducting plate in such a way that either type of structures face outward.

公开(公告)号：US5735590A

公开(公告)日：1998-04-07

申请号：US396529

申请日：1995-03-01

申请人： Keiji Kashima ,  Naoki Yoshida ,  Taiji Yamamoto ,  Yukio Inagaki

发明人： Keiji Kashima ,  Naoki Yoshida ,  Taiji Yamamoto ,  Yukio Inagaki

IPC分类号： F21V8/00 ,  G02B6/00

CPC分类号： G02B6/0038 ,  G02B6/0046 ,  G02B6/0071

摘要： A linear light source is disposed adjacent to the side face of a transparent light conducting plate. The thickness of the light conducting plate decreases as the position goes away from the light source. Light diffusing elements are formed on the major surface of the light conducting plate opposite to its light exit surface. At least one transparent sheet has, on the same surface thereof, a number of prisms having straight ridges that are arranged substantially parallel with each other at small intervals. The transparent sheet is disposed on the side of the light exit surface of the light conducting plate so that extensions of the straight ridges intersect the light source substantially perpendicularly.

摘要翻译： 线状光源与透明导光板的侧面相邻配置。 导光板的厚度随着位置远离光源而减小。 光扩散元件形成在导光板的与其光出射表面相对的主表面上。 至少一个透明片在其相同表面上具有多个棱镜，其具有以几个间隔彼此基本平行布置的直脊。 透明片设置在导光板的光出射面的一侧，使得直脊的延伸部基本垂直地与光源相交。

公开(公告)号：US5521797A

公开(公告)日：1996-05-28

申请号：US189753

申请日：1994-02-01

申请人： Keiji Kashima ,  Yukio Inagaki ,  Naoki Yoshida

发明人： Keiji Kashima ,  Yukio Inagaki ,  Naoki Yoshida

IPC分类号： F21V8/00 ,  G02B6/00 ,  G09F13/00 ,  G09F13/04

CPC分类号： G02B6/0051 ,  G02B6/005 ,  G02B6/0061 ,  G02B6/0065 ,  G02B6/0038 ,  G02B6/0043 ,  G09F13/00 ,  G09F2013/0459 ,  Y10S385/901

摘要： A backlighting device for use with display panels has a plurality of light diffusing elements formed in dots or stripes on one of the two major faces of a light conducting plate that is made of a light-transmissive material. The device also has a linear light source provided in proximity to the end portion of at least one side of the light conducting plate. In the device, at least one sheet that is made of a light-transmissive material and which has a multiple of prisms or raised structures having straight ridgelines defined by the apices and minima of the raised structures at small intervals on the same side of the sheet. The sheet is arranged in such a manner that the ridgelines are substantially parallel to one another and is located on an exit face of the light conducting plate in such a way that the straight ridgelines intersect that sides of the major face of the light conducting plate or intersect imaginary lines or stripes that would be drawn when the light diffusing elements are formed on the light conducting plate.

摘要翻译： 与显示面板一起使用的背光照明装置具有在由透光性材料制成的导光板的两个主面之一上以点状或条纹形成的多个光漫射元件。 该装置还具有设置在导光板的至少一侧的端部附近的线性光源。 在该装置中，至少一个由透光材料制成并且具有多个棱镜或凸起结构的片材，其具有在片材的同一侧上以较小的间隔由凸起结构的顶点和最小值限定的直线脊线 。 片材布置成使得脊线基本上彼此平行并且位于导光板的出射面上，使得直线脊线与导光板的主面相交或者 相交于在光传导板上形成光漫射元件时将被绘制的虚线或条纹。

公开(公告)号：US5262928A

公开(公告)日：1993-11-16

申请号：US838337

申请日：1992-02-20

申请人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji

发明人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji

IPC分类号： F21V8/00 ,  G09F13/04 ,  G09F13/18 ,  F21V7/04

CPC分类号： G02B6/0051 ,  G09F13/0409 ,  G09F2013/1813

摘要： A back lighting device which comprises a light conducting plate made of a light-transmissive material, a linear light source provided in proximity to the end portion of at least one side of the light conducting plate, a reflecting plate or film that covers the linear light source and which consists, in order from the light source side, of a specular reflecting plate or film, an air layer and a light diffusing/reflecting plate or film in superposition. One surface of the light conducting plate is provided with a light diffusing capability and covered with a specular or light diffusing/reflecting plate. Thereby, it is possible to provide a back lighting device that has a high efficiency of power to luminance conversion and which hence is capable of achieving high luminance.

公开(公告)号：US5442523A

公开(公告)日：1995-08-15

申请号：US933208

申请日：1992-08-21

申请人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

发明人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

IPC分类号： F21V8/00 ,  G02B6/00 ,  F21V5/02

CPC分类号： G02B6/0051 ,  G02B6/0053 ,  G02B6/0038 ,  G02B6/0068 ,  G02B6/0071

摘要： In a backlighting device for use with display panels that comprises a light conducting plate made of a light-transmissive material, one of the major faces of said light conducting plate being provided with a light diffusing capability and covered with a specular or light diffusing/reflecting plate, and a linear light source provided in proximity to the end portion of at least one side of said light conducting plate, the improvement wherein at least one sheet that is made of a light-transmissive material and that has a multiple of raised structures having straight ridgelines at minute intervals on the same side in such a manner that the ridgelines are substantially parallel to one another or at least one sheet that is made of a light-transmissive material and that has a multiple of pyramidal or conical projecting structures at minute intervals on the same side, said projecting structures having portions of such a shape that the vertical angles are substantially the same, is provided on the exit face of the light conducting plate in such a way that either type of structures face outward.

摘要翻译： 在与包括由透光材料制成的导光板的显示面板一起使用的背光装置中，所述导光板的主表面之一具有光漫射能力并被镜面或光漫射/反射 板和在所述导光板的至少一侧的端部附近设置的线性光源，其中至少一个由透光材料制成并且具有多个凸起结构的片具有 在相同的一侧以每分钟间隔的直线脊线，使得脊线彼此基本平行或至少一个由透光材料制成并且以分钟间隔具有多个锥体或锥形突出结构的片 在同一侧，所述突出结构具有垂直角基本相同的这种形状的部分 导光板的出射面，使两种类型的结构面向外。

公开(公告)号：US5392199A

公开(公告)日：1995-02-21

申请号：US70916

申请日：1993-06-04

申请人： Keiji Kashima ,  Naoki Yoshida

发明人： Keiji Kashima ,  Naoki Yoshida

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G09F13/04 ,  G09F13/18 ,  F21V7/04

CPC分类号： G02B6/0021 ,  G02B6/005 ,  G09F13/0409 ,  G09F13/18 ,  G02B6/0031 ,  G02B6/0071 ,  G09F2013/1831

摘要： In a back lighting device for a side light type panel, one end portion of a specular or light diffusing/reflecting film covering a linear light source is bonded to one end portion of a light conducting plate which is on the side of its light emerging surface and is in proximity of the linear light source, and a light diffusing/reflecting film is laid through an air layer on the part of the rear surface of the light conducting plate which corresponds to the junction. The back lighting device of the invention is small in size, large in effective light emitting area when compared with its external dimensions, and excellent in the distribution of luminance. Hence, it can be used as a back light device that is highly efficient in converting power to luminance.

摘要翻译： 在侧光型面板的背照明装置中，覆盖线状光源的镜面或光漫射/反射膜的一个端部被接合到导光板的位于其光出射表面侧的一个端部 并且靠近线性光源，并且光扩散反射膜通过对应于接合部的导光板的后表面的一部分上的空气层铺设。 本发明的背照明装置尺寸小，与其外形尺寸相比有效发光面积大，亮度分布优异。 因此，它可以用作在将功率转换成亮度方面高效的背光装置。

公开(公告)号：US5093765A

公开(公告)日：1992-03-03

申请号：US655520

申请日：1991-02-14

申请人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

发明人： Keiji Kashima ,  Naoki Yoshida ,  Osamu Shoji ,  Eiichi Yanagi ,  Takumi Fukunishi

IPC分类号： F21V8/00

CPC分类号： G02B6/0051

摘要： An improved backlighting device for liquid-crystal display panels comprising a linear light source the length of which is equal to or less than the length of an end portion of a light conducting plate at which light is admitted from the linear light source placed adjacent to it, the linear light source being enclosed with a light diffusing reflector that has a slit formed in the surface through which incident light is admitted into the light conducting plate and which is provided in such a way as to form a clearance from the surface of the linear light source, one major surface of the light conducting plate being partially covered with a light diffusing material under specified conditions that has a higher refractive index than the material of which the light conducting plate is made, the major surface being further covered with a specular or light diffusing/reflecting plate, with a plurality of light diffusing plates being provided on the other major (light emerging) surface of the light conducting plate.

公开(公告)号：US5647655A

公开(公告)日：1997-07-15

申请号：US296491

申请日：1994-08-08

申请人： Keiji Kashima ,  Naoki Yoshida

发明人： Keiji Kashima ,  Naoki Yoshida

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G09F13/04 ,  G09F13/18 ,  F21V7/04

CPC分类号： G02B6/0021 ,  G02B6/005 ,  G09F13/0409 ,  G09F13/18 ,  G02B6/0031 ,  G02B6/0071 ,  G09F2013/1831

摘要： In a back lighting device for a side light type panel, one end portion of a specular or light diffusing/reflecting film covering a linear light source is bonded to one end portion of a light conducting plate which is on the side of its light emerging surface and is in proximity of the linear light source, and a light diffusing/reflecting film is laid through an air layer on the part of the rear surface of the light conducting plate which corresponds to the junction. The back lighting device of the invention is small in size, large in effective light emitting area when compared with its external dimensions, and excellent in the distribution of luminance. Hence, it can be used as a back light device that is highly efficient in converting power to luminance.

摘要翻译： 在侧光型面板的背照明装置中，覆盖线状光源的镜面或光漫射/反射膜的一个端部被接合到导光板的位于其光出射表面侧的一个端部 并且靠近线性光源，并且光扩散反射膜通过对应于接合部的导光板的后表面的一部分上的空气层铺设。 本发明的背照明装置尺寸小，与其外形尺寸相比有效发光面积大，亮度分布优异。 因此，它可以用作在将功率转换成亮度方面高效的背光装置。