公开(公告)号：US07148858B2

公开(公告)日：2006-12-12

申请号：US10822990

申请日：2004-04-13

申请人： Yasuhiro Hibino ,  Hirokazu Kitamura ,  Ryuichi Kamimoto ,  Akira Ito ,  Ichiro Koyama ,  Katsuhiko Yusa

发明人： Yasuhiro Hibino ,  Hirokazu Kitamura ,  Ryuichi Kamimoto ,  Akira Ito ,  Ichiro Koyama ,  Katsuhiko Yusa

IPC分类号： H01Q1/50

CPC分类号： H01Q1/243 ,  H01Q1/084 ,  H04B1/18

摘要： A portable receiver includes an antenna to which at least FM broadcast wave is inputted, a matching circuit to which the signal input to the antenna is supplied via minute resistance component, an FM receiver unit with the output of the matching circuit connected thereto, and an earphone connected to the output of the FM receiver unit. The antenna is formed from rigid metal, and its length is shorter than the quarter wavelength of the FM broadcast wave. The matching circuit is formed by reactance element having fine DC resistance. The impedance value of the resistance component as viewed via the resistance component from the matching circuit is nearly equal to the impedance of the matching circuit.

摘要翻译： 一种便携式接收机包括至少FM广播波被输入的天线，经由微小电阻分量提供输入到天线的信号的匹配电路，连接有匹配电路的输出的FM接收机单元，以及 耳机连接到FM接收机单元的输出。 天线由刚性金属形成，长度短于FM广播波的四分之一波长。 匹配电路由具有良好直流电阻的电抗元件形成。 通过来自匹配电路的电阻分量观察的电阻分量的阻抗值几乎等于匹配电路的阻抗。

公开(公告)号：US20110157519A1

公开(公告)日：2011-06-30

申请号：US12979632

申请日：2010-12-28

申请人： Katsuhiko YUSA

发明人： Katsuhiko YUSA

IPC分类号： G02F1/1335 ,  F21V11/00

CPC分类号： G02B6/0053 ,  G02B6/0088

摘要： Disclosed is a light source apparatus including a light guide plate, a plurality of optical sheets and a frame, wherein one of the plurality of optical sheets is a prism sheet, the prism sheet having (i) a plurality of prisms formed on one surface thereof and (ii) one or more projecting pieces which are integrally formed with the prism sheet, the one or more projecting pieces engage to the frame, at least one of the one or more projecting pieces is a dark part suppressing projecting piece, sides making a pair of sides adjoining the dark part suppressing projecting piece are dark part suppressing sides, a first angle formed by the pair of dark part suppressing sides is equal to or smaller than a dark part suppressing angle, and second angles making a pair of angles formed with a straight line and each of sides making a pair of dark part suppressing sides are equal to or smaller than half of the dark part suppressing angle, the straight line (i) passing through a region formed between the pair of dark part suppressing sides, (ii) passing through an intersection point of the pair of dark part suppressing sides and (iii) being parallel or perpendicular to ridge lines of the prisms.

摘要翻译： 公开了一种光源装置，包括导光板，多个光学片和框架，其中多个光学片中的一个是棱镜片，所述棱镜片具有（i）在其一个表面上形成的多个棱镜 和（ii）与棱镜片一体形成的一个或多个突出片，所述一个或多个突出片与框架接合，所述一个或多个突出片中的至少一个是抑制突出片的暗部， 邻近暗部抑制突出片的一对侧是暗部抑制侧，由一对暗部抑制侧形成的第一角度等于或小于暗部抑制角度，并且形成与 一条直线和使一对暗部抑制侧的每个侧面等于或小于暗部抑制角的一半，直线（i）穿过形成在第二 一对暗部抑制侧，（ii）穿过该对暗部抑制侧的交点，（iii）与棱镜的棱线平行或垂直。

公开(公告)号：US08400583B2

公开(公告)日：2013-03-19

申请号：US12979632

申请日：2010-12-28

申请人： Katsuhiko Yusa

发明人： Katsuhiko Yusa

IPC分类号： G02F1/1333 ,  G02F1/1335 ,  F21V11/00

CPC分类号： G02B6/0053 ,  G02B6/0088

摘要： A light source apparatus include a light guide plate, a plurality of optical sheets and a frame, wherein one of the optical sheets is a prism sheet having a plurality of prisms on one surface and one or more integrally formed dark part suppressing projecting pieces engaging the frame. A pair of dark part suppressing sides adjoin the dark part suppressing projecting piece and form a first angle equal to or smaller than a dark part suppressing angle. Second angles making a pair of angles formed with a straight line and each of dark part suppressing sides are equal to or smaller than half of the dark part suppressing angle. The straight line passes through a region formed between the pair of dark part suppressing sides, passes through an intersection point of the pair of dark part suppressing sides and is parallel or perpendicular to ridge lines of the prisms.

摘要翻译： 光源装置包括导光板，多个光学片和框架，其中一个光学片是在一个表面上具有多个棱镜的棱镜片和一个或多个整体形成的暗部， 帧。 一对暗部抑制侧与暗部抑制突出片相邻并形成等于或小于暗部抑制角的第一角度。 由直线形成的一对角度和每个暗部抑制侧的第二角度等于或小于暗部抑制角度的一半。 该直线通过形成在一对暗部抑制侧之间的区域，穿过该对暗部抑制侧的交点，并且与棱镜的棱线平行或垂直。