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    • 6. 发明授权
    • Optical amplifier
    • 光放大器
    • US07538937B2
    • 2009-05-26
    • US11364633
    • 2006-02-28
    • Shinichi AozasaHiroji MasudaMakoto Shimizu
    • Shinichi AozasaHiroji MasudaMakoto Shimizu
    • H04B10/17H04B10/12
    • H04B10/296H01S3/005H01S3/0064H01S3/0078H01S3/06754H01S3/06758H01S3/094011H01S3/094023H01S3/10007H01S3/10023H01S3/1301H01S3/1302H01S3/131H01S3/1616H01S3/2383
    • An optical amplifier includes a rare-earth doped optical fiber or rare-earth doped optical waveguide serving as an amplification medium where rare-earth ions have been doped in its core and/or clad, an excitation mechanism for exciting the amplification medium, an optical resonator that causes laser oscillation at one or more wavelength of spontaneous emission light produced and amplified in the amplification medium, a monitoring mechanism that monitors a power of at least one light selected from a power of at least one light with at least one prescribed wavelength band selected from the light inputted to the amplification medium and a power of at least one light selected from a power of at least one light with at least one prescribed wavelength band selected from the light outputted from the amplification medium, and a control unit that controls the excitation mechanism based on a value from monitoring mechanism.
    • 光放大器包括稀土掺杂光纤或稀土掺杂光波导,其用作在其核和/或包层中掺杂稀土离子的放大介质,用于激发放大介质的激发机制,光学 谐振器,其在放大介质中产生和放大的自发发射光的一个或多个波长处引起激光振荡;监测机构,其监测从具有至少一个规定波长带的至少一个光的功率中选出的至少一个光的功率 从输入到放大介质的光中选择的光和从从放大介质输出的光中选择的至少一个规定波长带的至少一种光的功率中选择的至少一种光的功率;以及控制单元, 激励机制基于监测机制的价值。
    • 8. 发明授权
    • Surface light source device, flat type display device and liquid crystal display device
    • 表面光源装置,平板显示装置和液晶显示装置
    • US07481568B2
    • 2009-01-27
    • US11636992
    • 2006-12-12
    • Makoto ShimizuYoshinori YasudaToshihiko Ura
    • Makoto ShimizuYoshinori YasudaToshihiko Ura
    • F21V7/04
    • G02B6/009G02B6/0071G02B6/0085
    • An uneven surface portion is formed on the inner surface of a lamp holder to thereby reduce the contact area between the inner surface of the lamp holder and a light incident face of a light guide plate. The light incident face of the light guide plate and the inner surface of the lamp holder are prevented from coming into close contact with each other due to heat transferring from cold-cathode fluorescent tubes and to the light guide plate. The heat transferring via the lamp holder to the light guide plate is intercepted by an air layer occurring between the uneven surface portion of the lamp holder and the light incident face of the light guide plate. Accordingly, it can be prevented that a part of the lamp holder sticks to the light incident face of the light guide plate of the backlight when the lamp holder is replaced.
    • 在灯座的内表面上形成有不平坦的表面部分,从而减小了灯座的内表面与导光板的光入射面之间的接触面积。 由于从冷阴极荧光管和导光板的热传递,防止导光板的光入射面和灯座的内表面彼此紧密接触。 通过灯座向导光板的热传递被发生在灯架的不平坦表面部分与导光板的光入射面之间的空气层所截留。 因此,可以防止当更换灯座时灯具的一部分粘附到背光的导光板的光入射面。