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    • 3. 发明授权
    • System for alternately directing optical energy through multiple optical modulation channels
    • 用于通过多个光调制通道交替引导光能的系统
    • US06560382B1
    • 2003-05-06
    • US09252695
    • 1999-02-18
    • Markham E. LasherWeldon J. Dahlke
    • Markham E. LasherWeldon J. Dahlke
    • G02B626
    • G02F1/0311G02B27/2285G02F2201/34G02F2202/40G02F2203/07H04N13/393
    • A system for alternately directing optical energy through multiple optical modulation channels includes an optical switch having first and second optical output ports for alternately directing an optical signal at full input power out of first and second optical output ports; a first optical modulation channel for modulating the output signal received from the first optical output port; and a second optical modulation channel for modulating the output signal received from the second output port. The optical switch includes a Pockels cell and a birefringent mirror. The Pockels cell transforms a first polarization state of the optical signal into a second polarization state in response to receiving an input signal. The birefringent mirror allows the optical signal to propagate along a first axis when the optical signal has a first polarization state, and directs the optical signal along a second axis when the optical signal has a second polarization state.
    • 用于交替地引导光能通过多个光调制通道的系统包括具有第一和第二光输出端口的光开关,用于将全输入功率的光信号交替地引出第一和第二光输出端口; 第一光调制通道,用于调制从第一光输出端口接收的输出信号; 以及用于调制从第二输出端口接收的输出信号的第二光调制通道。 光开关包括普克尔斯单元和双折射镜。 响应于接收到输入信号,Pockels小区将光信号的第一偏振态变换为第二偏振状态。 当光信号具有第一偏振状态时,双折射反射镜允许光信号沿着第一轴传播,并且当光信号具有第二偏振状态时,光信号沿第二轴引导。
    • 5. 发明授权
    • Sequential color scanner
    • 顺序彩色扫描仪
    • US06456414B1
    • 2002-09-24
    • US09639127
    • 2000-08-15
    • Weldon J. DahlkeMarkham E. Lasher
    • Weldon J. DahlkeMarkham E. Lasher
    • G02B2608
    • G09G3/02G09G2310/0235
    • A sequential color scanner capable of generating both two and three dimensional moving color images has only one x- and y-deflection channel. The system includes first, second, and third optical signal generators for generating a first, second, and third optical signal, respectively. Each optical signal is characterized one of the three primary colors. The first, second, and third light signals are blue, green, and red, although not necessarily in that order. The first optical signal is generated along an optical axis. First and second beam combiners direct the second and third optical signals, respectively, along the optical axis. A first optical deflector deflects the optical signals in a first plane, and a second optical deflector for deflecting the optical signals in a second plane that is orthogonal to the first plane. First, second, and third modulators modulate the intensity of the first, second, and third optical signals, respectfully. A controller supervises each of the first, second, and third modulators so that the optical signals are generated in a pulsed, repeating sequence in accordance with an index that is counted by an index counter implemented in a controller. The controller also supervises modulation of the first and second optical deflectors so that the light signals are directed to predetermined coordinates. A time delay &tgr; is introduced between optical signals for enhancing the sharpness of the image by assuring that the optical deflectors modulate only one light signal at a time.
    • 能够产生二维和三维运动彩色图像的顺序彩色扫描仪只有一个x和y偏转通道。 该系统包括分别用于产生第一,第二和第三光信号的第一,第二和第三光信号发生器。 每个光信号都是三原色之一。 第一,第二和第三个光信号是蓝色,绿色和红色,尽管不一定按照这个顺序。 沿着光轴产生第一光信号。 第一和第二光束组合器分别沿着光轴引导第二和第三光信号。 第一光偏转器使第一平面中的光信号偏转,以及用于在与第一平面正交的第二平面中偏转光信号的第二光偏转器。 第一,第二和第三调制器相当地调制第一,第二和第三光信号的强度。 控制器监控第一,第二和第三调制器中的每一个,使得根据由控制器中实现的索引计数器计数的索引,以脉冲重复序列生成光信号。 控制器还监督第一和第二光学偏转器的调制,使得光信号被引导到预定的坐标。 时间延迟 被引入光信号之间,以通过确保光偏转器一次仅调制一个光信号来提高图像的清晰度。