公开(公告)号：US08587451B2

公开(公告)日：2013-11-19

申请号：US13157001

申请日：2011-06-09

申请人： Chih-Hsiao Chen

发明人： Chih-Hsiao Chen

IPC分类号： G08B7/00

CPC分类号： G03B21/56 ,  G02B17/0615 ,  H04N9/3129

摘要： A laser projection system including a projection screen and a laser projector is revealed. The projection screen includes at least one light emitting layer having at least one luminescent material that is excited by excitation light with a specific wavelength range to generate excited light with another wavelength range. The laser projector consists of a laser light source module, a laser signal modulation module, a rotation plane mirror module, a rotation plane mirror control module, and a signal conversion module. The laser projector produces excitation laser according to an image signal of a static image or dynamic image and projects the laser to the projection screen correspondingly for an image displayed. Thus a projected image with high recognition is displayed on the projection screen in a transparent manner in natural sunlight. Therefore efficiency and application of the laser projection are improved.

摘要翻译： 揭示了包括投影屏幕和激光投影仪的激光投影系统。 投影屏幕包括至少一个具有至少一种由具有特定波长范围的激发光激发的发光材料的发光层，以产生具有另一波长范围的激发光。 激光投影仪由激光光源模块，激光信号调制模块，旋转平面镜模块，旋转平面镜控制模块和信号转换模块组成。 激光投影仪根据静态图像或动态图像的图像信号产生激发激光，并将激光投射到投影屏幕上以显示图像。 因此，在自然的阳光下以透明的方式在投影屏幕上显示具有高识别度的投影图像。 因此提高了激光投影的效率和应用。

公开(公告)号：US07079310B2

公开(公告)日：2006-07-18

申请号：US10752672

申请日：2004-01-08

申请人： Chih-Hsiao Chen

发明人： Chih-Hsiao Chen

IPC分类号： H01S4/00 ,  H01S5/00

CPC分类号： H01S5/5072 ,  H01S3/061 ,  H01S3/2316 ,  H01S3/2383 ,  H01S5/0683 ,  H01S5/1212 ,  H01S5/1225 ,  H01S5/1243 ,  H01S5/183 ,  H01S5/227

摘要： An improved gain-clamped optical amplifier is disclosed. A series of laser cavities are placed along the amplifier axis. The laser cavities are designed such that the carrier densities of the amplifier decline toward the signal output end. Since the gain clamping amplitudes at positions along the amplifier can be different, we have the freedom to optimize the optical gain at all location, to minimize the noise impact at the signal input end, and to maximize the saturation output power at the signal output end. In addition, carrier levering effect realized by gain/loss wings further lowers the noise figure, and extends the optical gain and saturation output power. An ideal optical amplifier with high linear gain, small noise figure, and large saturation output power and extended dynamic range is then achieved. Energy saving is the bonus of using the invented amplifiers.

摘要翻译： 公开了一种改进的增益钳位光放大器。 沿放大器轴放置一系列激光腔。 激光腔被设计成使得放大器的载流子密度朝信号输出端下降。 由于放大器位置处的增益钳位幅度可能不同，我们可以自由地优化所有位置的光增益，以最大限度地减少信号输入端的噪声影响，并最大化信号输出端的饱和输出功率 。 另外，通过增益/损耗翼实现的载波杠杆效应进一步降低了噪声系数，并延长了光增益和饱和输出功率。 然后实现了具有高线性增益，小噪声系数和大饱和输出功率以及扩展动态范围的理想光放大器。 节能是使用发明的放大器的好处。