Optical switch, element therefor, and optical switching method
    1.
    发明授权
    Optical switch, element therefor, and optical switching method 失效
    光开关,元件及光开关方式

    公开(公告)号:US06870983B2

    公开(公告)日:2005-03-22

    申请号:US10447146

    申请日:2003-05-29

    IPC分类号: G02F1/31 G02F1/35 G02B6/26

    CPC分类号: G02F1/3515 G02F2203/28

    摘要: An optical switch, in which focal position of beams is adjusted to provide a high switching efficiency and a high stability in action without increasing a light source output of a control light, comprising a condensing means for making a signal light and a control light convergent and incident upon a nonlinear optical thin-film and wherein irradiation of the control light causes a change of the nonlinear optical thin-film in refractive index to thereby change the signal light into a transmitted light or a reflected light to take out the same as an output signal.

    摘要翻译: 一种光学开关,其中调节光束的焦点位置以提供高开关效率和高稳定性,而不增加控制光的光源输出,包括用于使信号光和控制光会聚的聚光装置,以及 入射到非线性光学薄膜上,并且其中控制光的照射引起非线性光学薄膜在折射率中的变化,从而将信号光变为透射光或反射光以取出与输出相同的输出 信号。

    Reflector, projective display and projector
    9.
    发明申请
    Reflector, projective display and projector 有权
    反射镜,投影显示器和投影机

    公开(公告)号:US20050047146A1

    公开(公告)日:2005-03-03

    申请号:US10920351

    申请日:2004-08-18

    摘要: It is an object of the present invention to provide a reflector made of heat-resistant glass. It is another object of the present invention to provide a projective display which uses the reflector. A projector device having: a light source emitting white light; a reflector reflecting a light emitted from the light source; a light valve modulating illumination beam of light; and a projective lens projecting image light from the light valve, wherein the reflector is made of a glass containing SiO2 as a major ingredient and at least one rare-earth element selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the glass has a thermal expansion coefficient lower than 40×10−7/° C. and a transition temperature higher than 500° C.

    摘要翻译: 本发明的目的是提供一种由耐热玻璃制成的反射器。 本发明的另一个目的是提供一种使用该反射器的投影显示器。 一种投影仪装置,具有:发出白光的光源; 反射从光源发射的光的反射器; 调节照明光束的光阀; 以及投影透镜,其投影来自所​​述光阀的图像光,其中所述反射器由以SiO 2为主要成分的玻璃制成,以及至少一种选自Sc,Y,La,Pr,Nd的稀土元素, Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb和Lu,玻璃的热膨胀系数低于40×10 -7 /℃,转变温度高于500℃ 。