Non-linear optical thin film, non-linear optical device using the same, and optical switch using the same
    18.
    发明授权
    Non-linear optical thin film, non-linear optical device using the same, and optical switch using the same 失效
    非线性光学薄膜,使用该非线性光学薄膜的非线性光学装置以及使用其的光学开关

    公开(公告)号:US06804043B2

    公开(公告)日:2004-10-12

    申请号:US10378863

    申请日:2003-03-05

    IPC分类号: G02F100

    CPC分类号: G02F1/3551

    摘要: A non-linear optical material comprising crystal grains of an oxide having a corundum type crystal structure, and amorphous portions in the surroundings of the crystal grains, in a thin film, is disclosed. The non-linear optical thin film has such a property that its refractive index varies largely when energy is applied thereto. Since the material shows little loss of light transmitted therethrough, it is possible, by use of the material, to provide a non-linear optical device for efficiently changing over the emission path of a light signal or turning-ON/OFF the light signal.

    摘要翻译: 公开了一种非线性光学材料,其包括具有刚玉型晶体结构的氧化物的晶粒和晶粒周围的非晶体部分的薄膜。 非线性光学薄膜具有当其施加能量时其折射率变化很大的特性。 由于该材料透过的光的损失很小,所以可以通过使用该材料来提供用于有效地转换光信号的发射路径或者将光信号导通/断开的非线性光学装置。

    Reflector, projective display and projector
    19.
    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℃ 。