Apparatus for controlling pulse energy in a Q-switched laser system
    1.
    发明授权
    Apparatus for controlling pulse energy in a Q-switched laser system 失效
    用于控制Q开关激光系统中的脉冲能量的装置

    公开(公告)号:US5018152A

    公开(公告)日:1991-05-21

    申请号:US404316

    申请日:1989-09-07

    IPC分类号: H01S3/11 H01S3/131

    摘要: A switched cavity laser system which includes a resonant cavity, a gain medium within the resonant cavity, a cavity switch and an output coupler. A controllable pump energy source delivers pump energy to the gain medium in response to an energy control signal. A detector is coupled with the gain medium and generates a detector signal in response to the amount of population inversion exhibited by the gain medium. A control circuit is coupled to the detector and controllable pump energy source for generating the energy control signal in response to the detector signal. As the switching rate of the Q-switch is varied, the energy control signal varies to ensure a constant level of population inversion between each pulse. In this matter, a prespecified pulse energy is achieved for each pulse independent of the switching rate of the Q-switch.

    摘要翻译: 一种开关腔激光器系统,其包括谐振腔,谐振腔内的增益介质,腔开关和输出耦合器。 响应于能量控制信号,可控泵浦能量源将泵浦能量传递到增益介质。 检测器与增益介质耦合,并响应于增益介质显示的总体反转量产生检测器信号。 控制电路耦合到检测器和可控的泵浦能量源,以响应于检测器信号产生能量控制信号。 随着Q开关的切换速率的变化,能量控制信号变化,以确保每个脉冲之间恒定的总体反转水平。 在这种情况下,独立于Q开关的开关速率,为每个脉冲实现预定的脉冲能量。

    Intracavity modulated pulsed laser and methods of using the same
    2.
    发明授权
    Intracavity modulated pulsed laser and methods of using the same 失效
    腔内调制脉冲激光及其使用方法

    公开(公告)号:US5621745A

    公开(公告)日:1997-04-15

    申请号:US350951

    申请日:1994-12-07

    摘要: An intracavity modulated pulsed laser and methods of using the same. In one preferred form, an intracavity modulated pulsed laser comprises an amplification medium, a pulsed pumping source, a beam modulator, and two mirrors, one totally reflective and one partially reflective for generating at least one laser output burst comprising a plurality of sub-pulses having variably controllable peak powers. In another preferred form, a non-linear crystal is utilized to double the frequency of each laser output burst. In still another preferred form, a fluorescence feedback control circuit is utilized to control the beam modulator.

    摘要翻译: 腔内调制脉冲激光器及其使用方法。 在一个优选形式中,腔内调制脉冲激光器包括放大介质,脉冲泵浦源,光束调制器和两个反射镜,一个全反射和一个部分反射,用于产生包括多个子脉冲的至少一个激光输出脉冲串 具有可变的峰值功率。 在另一优选形式中,使用非线性晶体来使每个激光输出脉冲串的频率加倍。 在另一优选形式中,使用荧光反馈控制电路来控制光束调制器。

    Intracavity modulated pulsed laser and methods of using the same
    5.
    发明授权
    Intracavity modulated pulsed laser and methods of using the same 失效
    腔内调制脉冲激光及其使用方法

    公开(公告)号:US5832013A

    公开(公告)日:1998-11-03

    申请号:US768250

    申请日:1996-12-17

    摘要: An intracavity modulated pulsed laser and methods of using the same. In one preferred form, an intracavity modulated pulsed laser comprises an amplification medium, a pulsed pumping source, a beam modulator, and two mirrors, one totally reflective and one partially reflective for generating at least one laser output burst comprising a plurality of sub-pulses having variably controllable peak powers. In another preferred form, a non-linear crystal is utilized to double the frequency of each laser output burst. In still another preferred form, a fluorescence feedback control circuit is utilized to control the beam modulator.

    摘要翻译: 腔内调制脉冲激光器及其使用方法。 在一个优选形式中,腔内调制脉冲激光器包括放大介质,脉冲泵浦源,光束调制器和两个反射镜,一个全反射和一个部分反射,用于产生包括多个子脉冲的至少一个激光输出脉冲串 具有可变的峰值功率。 在另一优选形式中,使用非线性晶体来使每个激光输出脉冲串的频率加倍。 在另一优选形式中,使用荧光反馈控制电路来控制光束调制器。

    Poker game using a roulette wheel
    6.
    发明授权
    Poker game using a roulette wheel 失效
    扑克游戏使用轮盘赌轮

    公开(公告)号:US4149728A

    公开(公告)日:1979-04-17

    申请号:US831741

    申请日:1977-09-09

    IPC分类号: A63F5/02 A63H33/00 A63F3/00

    摘要: A poker game includes a roulette wheel mounted on a table top. The table top has a played card distribution area and a rack extending therefrom at an angle therewith for supporting a plurality of playing cards. Each card played is indicated in the played card distribution area. A wagering area on the table top indicates cards and poker hands for wagers concerning the operation of the roulette wheel.

    摘要翻译: 扑克游戏包括安装在桌面上的轮盘赌。 桌面具有播放卡分配区域和与其成角度地延伸的支架,用于支撑多张扑克牌。 播放的卡片分配区域显示播放的每张卡。 桌面上的一个投注区域表示卡片和扑克牌,用于关于轮盘赌轮的操作的投注。

    Propulsion unit for skiers
    7.
    发明授权
    Propulsion unit for skiers 失效
    滑雪者推进单位

    公开(公告)号:US4096919A

    公开(公告)日:1978-06-27

    申请号:US719855

    申请日:1976-09-02

    摘要: A cleated roller enclosing an internal combustion engine is provided with two handles containing means for engaging the posterior of a skier. The engine is mounted within the roller on a frame which in turn is mounted to both of the roller hubs which are hollow. The roller hubs are connected to the handles. The engine's output shaft is operatively connected to both end walls of the roller so as to rotate the roller relative to the roller hubs. The roller hubs are in direct fluid communication with the atmosphere outside the roller so as to permit efficient cooling of the engine by a forced airflow through the hubs and the roller.

    摘要翻译: 包围内燃机的清洁辊设置有两个手柄,其包含用于接合滑雪者后部的装置。 发动机安装在辊子内的框架上,框架又安装在两个中空的辊毂上。 滚轮毂与手柄相连。 发动机的输出轴可操作地连接到辊的两个端壁,以便相对于辊毂旋转辊。 辊轮与辊外的大气直接流体连通,以便通过强制气流通过轮毂和滚筒来有效地冷却发动机。