公开(公告)号：US20020006036A1

公开(公告)日：2002-01-17

申请号：US09899932

申请日：2001-07-09

Applicant: MINEBEA CO., LTD.

Inventor： Motoji Egawa ,  Shingo Suzuki

IPC: F21V007/04

CPC classification number: G02B6/0028 ,  F21S8/00 ,  F21Y2115/10 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0038 ,  Y10S385/901

Abstract: There is provided a spread illuminating apparatus to suppress leakage of light. Light emitted from a light source, reaching a first inclined surface of grooves of a light reflection pattern and exiting out there is caught by a second inclined surface thereof at an area positioned above the first inclined surface since the distance between an upper edge of the second inclined surface and the level of a bottom thereof is set greater than the distance between an upper edge of the first inclined surface and the level of the bottom thereof. Thus, light, which will leak in case of a conventional art, can reenter a transparent substrate at the second inclined surface so as to improve illumination efficiency.

公开(公告)号：US20010050847A1

公开(公告)日：2001-12-13

申请号：US09769472

申请日：2001-01-26

Applicant: MINEBEA CO., LTD.

Inventor： Shingo Suzuki ,  Koichi Toyoda

IPC: F21V007/04

CPC classification number: G02B6/0091 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0086

Abstract: There is provided a spread illuminating apparatus in which transmission efficiency of light is enhanced and in which a good liquid crystal display screen is provided. Positioning means (25, 25) are provided on a lower plate inner surface (15) of a frame (13) that covers a light conductive member (3). The positioning means (25, 25) push up the light conductive member (3) relative to a transparent substrate (2) in the direction of the thickness of the light conductive member (3) (light source (5)) (toward an upper plate inner surface (14) of the frame) by the thickness t of a reflection preventive film (20) attached to the lower surface of the transparent substrate (2) . Thus, an exit surface (9) of the light conductive member (3) does not overlap the reflection preventive film (20), and a good display can be realized on the liquid crystal screen. Further, the exit surface (9) of the light conductive member (3) and an incident surface (8) of the transparent substrate (2) can be fixedly held at the same height position, and thus light can be transmitted efficiently.

Abstract translation: 提供了一种扩展照明装置，其中增强了光的传输效率，并且其中提供了良好的液晶显示屏。 定位装置（25,25）设置在覆盖导光部件（3）的框架（13）的下板内表面（15）上。 定位装置（25,25）在导光部件（3）（光源（5））的厚度方向上相对于透明基板（2）向上推动导光部件（3） 框架的板内表面（14）除以安装在透明基板（2）的下表面上的防反射膜（20）的厚度t。 因此，导光部件（3）的出射面（9）与反射防止膜（20）不重叠，可以在液晶显示屏上实现良好的显示。 此外，导光部件（3）的出射面（9）和透明基板（2）的入射面（8）能够固定地保持在同一高度位置，从而可以有效地传递光。

公开(公告)号：US20010017773A1

公开(公告)日：2001-08-30

申请号：US09769295

申请日：2001-01-26

Applicant: MINEBEA CO., LTD

Inventor： Shingo Suzuki ,  Koichi Tokoda

IPC: F21V007/04

CPC classification number: G02B6/0018 ,  F21Y2105/00 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0086 ,  G02B6/009 ,  G02F1/133615

Abstract: There is provided a spread illuminating apparatus which is improved in terms of compactness. A light guiding member (15) provided with a curve (20) is disposed between an end (5a) of a light conductive member (5) and a spot-like light source (6). Light beams from the spot-like light source (6) which travel in the direction orthogonal to an electric wiring board (17) are directed toward the end (5a) of the light conductive member (5) (in the direction parallel with the electric wiring board (17)) to be properly guided while reflected at the curve (20). Since the light beams from the spot-like light source (6) are properly guided, the light beams from the spot-like light source (6) can enter the light conductive member (5) with the spot-like light source (6) and the light conductive member (5) not disposed on the same plane. Therefore, the spot-like light source (6) can be arranged with less restrictions, thereby enabling the spot-like light source (6) to be disposed on the electric wiring board (17) together with other electronic components. Accordingly, in comparison with the conventional art in which the spot-like light source can not be disposed on the electric wiring board together with other electronic components requiring separate circuits to be provided, the apparatus can be improved in terms of compactness.

Abstract translation: 提供了一种在紧凑性方面得到改进的扩散照明装置。 具有曲线（20）的导光构件（15）设置在导光构件（5）的端部（5a）和点状光源（6）之间。 来自与电气布线板（17）正交的方向行进的点状光源（6）的光束朝向导光部件（5）的端部（5a） 接线板（17））在曲线（20）反射时被正确地引导。 由于来自点状光源（6）的光束被适当地引导，所以点状光源（6）的光束可以用斑点状光源（6）进入导光部件（5） 和未设置在同一平面上的导光部件（5）。 因此，点状光源（6）能够以较少的限制进行布置，从而能够将点状光源（6）与其他电子部件一起配置在电气布线板（17）上。 因此，与其他不需要设置电路的其他电子部件一起配置在电气布线板上的点状光源的现有技术相比，能够提供小型化的装置。

公开(公告)号：US20030012009A1

公开(公告)日：2003-01-16

申请号：US10189626

申请日：2002-07-08

Applicant: MINEBEA CO., LTD

Inventor： Shingo Suzuki ,  Toru Kunimochi

IPC: F21V007/04

CPC classification number: G02B6/0028 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0061

Abstract: There is provided a spread illuminating apparatus to make effective utilization of light emitted from a light source. A light reflection plate is provided along and close to a side surface of a light conductive member opposite to a side surface facing a transparent substrate, and has on a surface thereof a plurality of prismatic projections facing toward the light conductive member and arrayed along the longitudinal direction thereof. A reflection layer is formed on the projections. Light having penetrated inclined walls at the light conductive member is reflected by means of the reflection layer along the optical axis to be effectively utilized.

Abstract translation: 提供了有效利用从光源发出的光的扩散照明装置。 光反射板沿着并靠近与面向透明基板的侧表面相对的导光部件的侧表面设置，并且在其表面上具有面向导光部件的多个棱镜形突起，并沿纵向排列 方向。 在突起上形成反射层。 穿过导光部件的倾斜壁的光通过沿着光轴的反射层被反射，以被有效地利用。

公开(公告)号：US20020030986A1

公开(公告)日：2002-03-14

申请号：US09942869

申请日：2001-08-31

Applicant: MINEBEA CO., LTD.

Inventor： Motoji Egawa ,  Takahiro Shimura ,  Shingo Suzuki

IPC: G01D011/28

CPC classification number: G02B6/0028 ,  G01D11/28 ,  G02B6/0038 ,  G02B6/0068

Abstract: A spread illuminating apparatus provides a uniform illuminance, an accurate illumination, an improved visibility, and an expanded screen size. Light sources (5a, 5b) comprising bar-like light conductive members (3a, 3b) and spot-like light sources (4a, 4b), respectively, are disposed close to end surfaces (8a, 8b) of a transparent substrate (2). A light reflection pattern (29) is formed on a surface of the transparent substrate (2) along the length of the light conductive members (3a, 3b). The light reflection pattern (29) comprises grooves (27) and flat portions (28) adjacent to the grooves. The grooves (27) are shaped trapezoidal in section, and the depth thereof increases in proportion to the increase in distance from the light sources (5a, 5b) and measures maximum at the center of the transparent substrate (2).

Abstract translation: 扩展的照明装置提供均匀的照度，精确的照明，改进的可见性和扩大的屏幕尺寸。 分别包括棒状导光部件（3a，3b）和点状光源（4a，4b）的光源（5a，5b）分别靠近透明基板（2）的端面（8a，8b） ）。 沿着导光部件（3a，3b）的长度在透明基板（2）的表面上形成光反射图案（29）。 光反射图案（29）包括与凹槽相邻的凹槽（27）和平坦部分（28）。 凹槽（27）的截面为梯形，其深度与从光源（5a，5b）的距离的增加成比例地增加，并且测量透明基板（2）的中心处的最大值。

公开(公告)号：US20020001189A1

公开(公告)日：2002-01-03

申请号：US09888522

申请日：2001-06-26

Applicant: MINEBEA CO., LTD.

Inventor： Motoji Egawa ,  Shingo Suzuki

IPC: F21V005/02 ,  F21V007/04

CPC classification number: G02B6/0028 ,  G02B6/0031 ,  G02B6/0038 ,  G02B6/0061

Abstract: There is provided a spread illuminating apparatus for improving the machinability and durability of a molding die for a transparent substrate and obtaining an excellent light reflection. In a light reflection pattern comprising grooves and substantially flat portions adjacent to the grooves and formed on an upper surface of the transparent substrate in parallel to the optical axis of a bar-like light conductive member disposed close to an end surface of the transparent substrate, the grooves are each formed substantially trapezoidal in section with their bottom surface defining a shorter side of trapezoid. The inclination angle of an inclined surface positioned closer to a light source is set to range between 35null and 55null, the inclination angles of both the substantially flat portions and the bottom surfaces are set to range between null5null and null5null, the width of the substantially flat portions is set to be constant, and the width and depth of the grooves gradually increase in proportion to the increase in distance from the light source.

Abstract translation: 提供了一种用于提高用于透明基板的成型模具的机械加工性和耐久性的扩散照明装置，并获得优异的光反射。 在光反射图案中，包括与凹槽相邻的凹槽和基本平坦的部分，并且平行于布置在透明基板的端面附近的棒状导光部件的光轴上形成在透明基板的上表面上， 槽各自形成为大致梯形截面，其底面限定了梯形的较短侧。 位于更靠近光源的倾斜表面的倾斜角度被设定在35°和55°之间的范围内，两个基本上平坦的部分和底面的倾斜角度被设定在-5°和+ 5°之间的范围内， 基本上平坦部分的宽度被设定为恒定，并且槽的宽度和深度与从光源的距离的增加成比例地逐渐增加。

公开(公告)号：US20010012203A1

公开(公告)日：2001-08-09

申请号：US09772933

申请日：2001-01-31

Applicant: MINEBEA CO. LTD.

Inventor： Shingo Suzuki ,  Koichi Toyoda

IPC: F21V007/04

CPC classification number: F21V29/70 ,  F21V29/74 ,  G02B6/0028 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0083 ,  G02B6/0085 ,  G02B6/009 ,  G09F13/00 ,  H05K1/0203 ,  H05K1/189

Abstract: There is provided a spread illuminating apparatus with an enhanced efficiency of radiating heat generated by a spot-like light source. An enclosure (31) is formed at an end of a metal frame (27) so as to enclose a cover portion (14) which receives a spot-like light source (6). Dummy patterns (26) are provided on inner surfaces of the first, second and third face portions (18, 20, 22) of the cover portion (14). Since the enclosure (31) is made of metal, and therefore has a high heat conductivity, the enclosure (31) works as a sort of heat sink and easily conducts heat generated by the spot-like light source (6) outwardly for radiation. The enclosure (31) is integrally formed with the metal frame (27), so the number of components can be reduced in comparison with the case where the enclosure (31) and the metal flame (27) are separately formed. Thus, the structure is simplified, thereby improving the productivity. Heat generated by the spot-like light source (6) is more efficiently conducted owing to the dummy patterns (26), and therefore the radiation efficiency can be further enhanced.

Abstract translation: 提供了一种具有提高由斑点状光源产生的热辐射效率的扩散照明装置。 在金属框架（27）的端部形成有围绕接收点状光源（6）的盖部（14）的外壳（31）。 在盖部分（14）的第一，第二和第三面部分（18,20,22）的内表面上设置有虚拟图案（26）。 由于外壳31由金属构成，因此具有高的导热性，外壳31作为一种散热器工作，并且容易将由点状光源（6）产生的热量向外导出以进行辐射。 外壳31与金属框架27一体地形成，因此与外壳31和金属火焰27分开形成的情况相比，能够减少部件数。 因此，结构简化，从而提高生产率。 由点状光源（6）产生的热量由于虚拟图案（26）而被更有效地进行，因此能够进一步提高辐射效率。

公开(公告)号：US20030058634A1

公开(公告)日：2003-03-27

申请号：US10246724

申请日：2002-09-19

Applicant: MINEBEA CO., LTD.

Inventor： Toru Kunimochi ,  Shingo Suzuki

IPC: H01L033/00

CPC classification number: G02B6/0053 ,  G02B6/0018 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0061 ,  G02B6/0068

Abstract: The illuminating apparatus of the present invention has two light conductive bars which have one spot-like light source in common on their end surfaces, and which are disposed with their respective side surfaces facing each other and along the end surface of a light conductive plate. The spot-like light source has the center of its light emitting surface positioned to an interface portion between the two light conductive bars, whereby non-uniformity in brightness of lights at the end surfaces of the light conductive bars is diminished at the end surface of the light conductive plate with respect to the length direction of the light conductive bars while the lights emitted from the spot-like light source and introduced into the light conductive bars have their optical paths changed at respective optical path conversion means formed on the light conductive bars, and travel into the light conductive plate.

Abstract translation: 本发明的照明装置具有两个在它们的端面上具有一个点状光源的光导棒，并且它们各自的侧表面彼此面对并且沿着导光板的端面设置。 斑点状光源的发光表面的中心位于两个光导棒之间的界面部分，由此导光棒端面处的光的亮度不均匀性在 相对于导光棒的长度方向的导光板，同时从点状光源发射并引入光导棒的光线的光路在其形成在光导棒上的各光路转换装置 ，并进入导光板。

公开(公告)号：US20030058633A1

公开(公告)日：2003-03-27

申请号：US10242410

申请日：2002-09-13

Applicant: MINEBEA CO., LTD.

Inventor： Shingo Suzuki

IPC: F21V008/00

CPC classification number: G02B6/0038 ,  Y10S385/901

Abstract: In a light reflection pattern formed on a bottom surface of a light conductive plate, an inclined surface of grooves positioned at a predetermined distance or farther from a lamp includes a non-flat portion whose inclination angle varies gradually. Light rays traveling in the light conductive plate are reflected at the non-flat portion with an appropriate angle suitable for increasing a viewing field angle and exit out from a top surface of the light conductive plate. Consequently, the viewing field angle at the portion positioned at a predetermined distance or farther from the lamp can be increased.

Abstract translation: 在形成在导光板的底面上的光反射图案中，位于预定距离或远离灯的凹槽的倾斜表面包括倾斜角逐渐变化的非平坦部分。 在导光板中行进的光线在非平坦部分以适于增加视野角并从光导板的顶表面离开的适当角度反射。 因此，可以增加位于预定距离或距离灯更远的部分处的视场角。

公开(公告)号：US20030021099A1

公开(公告)日：2003-01-30

申请号：US10199041

申请日：2002-07-22

Applicant: Minebea Co., Ltd.

Inventor： Shingo Suzuki ,  Toru Kunimochi

IPC: F21V007/04

CPC classification number: G02B6/0028 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0061

Abstract: In a spread illuminating apparatus basically comprising a light conductive plate and a lamp, the lamp comprises at least two light conductive bars and a spot-like light source disposed on one or both end surfaces of the light conductive bars, and is disposed close a side surface of the light conductive plate. An optical path conversion means comprising grooves and flat portions is formed on a side surface of each of the at least two light conductive bars. Light-and-dark striping generated on the light conductive plate by light reflected by one optical path conversion means of one light conductive bar of the at least two is corrected by light reflected by the other optical path conversion means of the other light conductive bars.

Abstract translation: 在基本上包括导光板和灯的扩展照明装置中，灯包括设置在导光棒的一个或两个端面上的至少两个导光条和点状光源，并且靠近一侧 导光板的表面。 包括沟槽和平坦部分的光路转换装置形成在每个至少两个导光棒的侧表面上。 通过由其他导光棒的另一光路转换装置反射的光来校正由至少两个的一个导光棒的一个光路转换装置所反射的光在导光板上产生的浅色条纹。