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    • 71. 发明授权
    • Key pad lighting apparatus for a portable terminal
    • 用于便携式终端的键盘照明装置
    • US07758225B2
    • 2010-07-20
    • US11452624
    • 2006-06-14
    • Sun-Tae JungJoo-Hoon Lee
    • Sun-Tae JungJoo-Hoon Lee
    • F21V7/04
    • H04M1/22H01H2219/062
    • A key pad lighting apparatus for a portable terminal includes: a waveguide in which a plurality of key buttons are arranged at one surface thereof; at least one light source provided at one side of the waveguide for introducing the light into the waveguide; and a guide member surrounding the light source for preventing a discharge of the light and for guiding the light into the waveguide. The key pad lighting apparatus can uniformly illuminate the key buttons installed in the key pad with a few light source using less light sources which helps to reduce the power consumption.
    • 一种用于便携式终端的键盘照明装置包括:波导,其中多个键按钮布置在其一个表面上; 设置在所述波导的一侧的至少一个光源,用于将光引入到所述波导中; 以及围绕光源的引导构件,用于防止光的放出并将光引导到波导中。 键盘照明装置可以使用较少的光源均匀地照亮安装在键盘中的按键,其中少数光源有助于降低功耗。
    • 74. 发明授权
    • Keypad assembly
    • 键盘装配
    • US07442889B2
    • 2008-10-28
    • US11473193
    • 2006-06-21
    • Joo-Hoon LeeSun-Tae Jung
    • Joo-Hoon LeeSun-Tae Jung
    • H01H13/00
    • H01H13/83H01H2219/014H01H2219/044H01H2219/056H01H2219/06H01H2219/062H01H2221/002H01H2221/006H01H2221/05H01H2221/07
    • A keypad assembly including a light guide plate, a keypad, and reflective layers is disclosed. The light guide plate includes reflective patterns that are locally formed on the bottom surface of the light guide plate to reflect a part of light going into the light guide plate to the top surface of the light guide plate. The keypad includes a pad that is in the shape of a box whose bottom is opened by sidewalls and surrounds the remaining portions of the light guide plate except for the bottom surface of the light guide plate and at least one key button placed on the top surface of the pad and outputting light reflected from the reflective patterns to their outside. The reflective layers are formed at the sidewalls of the pad facing the sides of the light guide plate to reflect light irradiated from the sides of the light guide plate back to the sides of the light guide plate.
    • 公开了一种包括导光板,键盘和反射层的键盘组件。 导光板包括局部形成在导光板的底表面上的反射图案,以将进入导光板的一部分光反射到导光板的顶表面。 小键盘包括:底座由侧壁打开并围绕导光板的除了导光板的底面以外的其余部分的盒子的形状,以及放置在顶面上的至少一个按键 并将从反射图案反射的光输出到其外部。 反射层形成在面向导光板的侧面的垫的侧壁处,以将从导光板的侧面照射的光反射回导光板的侧面。
    • 79. 发明授权
    • Wavelength division multiplexer/demultiplexer
    • 波分复用器/解复用器
    • US07327912B2
    • 2008-02-05
    • US10607466
    • 2003-06-26
    • Young-Hoon KimSun-Tae JungDong-Kyoon Han
    • Young-Hoon KimSun-Tae JungDong-Kyoon Han
    • G02B6/26
    • G02B6/12016
    • Disclosed is a wavelength division multiplexer/demultiplexer having a grating for demultiplexing a multiplexed optical signal, an input waveguide and an output waveguides. The input waveguide comprises a first sub-waveguide having a width that gradually increases in a progressing direction of the optical signal and a second sub-waveguide having a width that gradually decreases in the progressing direction of the optical signal passing through the first sub-waveguide. Since the inputted optical signal within the increased portion of the input waveguide has an expended bandwidth and the inputted optical signal within the decreased portion of the input waveguide has a reduced side lobe, an interference effect is prevented, which may be generated between neighboring channels, and improves quality of the optical signal transmitted and received in a wavelength division multiplexed (WDM) optical communication network.
    • 公开了具有用于多路复用光信号的光栅,输入波导和输出波导的波分复用器/解复用器。 输入波导包括第一子波导,其具有在光信号的进行方向上逐渐增加的宽度,以及具有在通过第一子波导的光信号的进行方向上逐渐减小的宽度的第二子波导 。 由于在输入波导的增加部分内的输入光信号具有消耗带宽,并且输入波导的减少部分内的输入光信号具有减小的旁瓣,因此可以防止在相邻信道之间产生的干扰效应, 并提高在波分多路复用(WDM)光通信网络中发送和接收的光信号的质量。