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公开(公告)号：US07581835B1
公开(公告)日：2009-09-01
申请号：US10992664
申请日：2004-11-22
申请人： Brian W. Walker
发明人： Brian W. Walker
摘要： A light show device includes a light source configured to generate a light beam having a substantially constant diameter, a container having a substantially transparent portion, a plurality of mirrors, each mirror connectable or connected to the container rotatably about at least one axis, and a particulate source configured to create inside the container a substantial suspension of particulates, where the device is configured to allow a reflection of the light beam between at least a majority of the mirrors.
摘要翻译： 光显示装置包括被配置为产生具有基本恒定直径的光束的光源，具有基本上透明部分的容器，多个反射镜，每个反射镜可相对于至少一个轴线可旋转地连接或连接到容器，以及 微粒源被配置成在容器内部形成大量的微粒悬浮液，其中该装置构造成允许在至少大部分反射镜之间反射光束。
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公开(公告)号：US07489714B2
公开(公告)日：2009-02-10
申请号：US11843211
申请日：2007-08-22
申请人： Yong-hwa Park , Kyoung-ho Ha , Jun-o Kim , Yong-kweun Mun
发明人： Yong-hwa Park , Kyoung-ho Ha , Jun-o Kim , Yong-kweun Mun
CPC分类号： G02B27/48 , H01S5/028 , H01S5/1039 , H01S5/14 , H01S5/2231 , H04N9/3129
摘要： A speckle reduction laser and a laser display apparatus having the speckle reduction laser are provided. The speckle reduction laser includes a semiconductor unit that comprises an active layer and emits laser light through a first side surface thereof by resonating light generated from the active layer, and a vibration mirror unit disposed adjacent to a second side surface of the semiconductor unit. The laser further includes a mirror, and the resonance of the laser light is generated between the first side surface of the semiconductor unit and the mirror, and a resonance mode of the laser light is changed according to the vibration of the mirror.
摘要翻译： 提供了一种减光激光器和具有散斑激光的激光显示装置。 散斑减少激光器包括半导体单元，该半导体单元包括有源层，并且通过使从有源层产生的光谐振而发射通过其第一侧表面的激光，以及邻近半导体单元的第二侧表面设置的振动镜单元。 激光还包括反射镜，并且在半导体单元的第一侧表面和反射镜之间产生激光的共振，并且激光的谐振模式根据反射镜的振动而改变。
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公开(公告)号：US20080144675A1
公开(公告)日：2008-06-19
申请号：US11638645
申请日：2006-12-13
IPC分类号： H01S3/123
CPC分类号： H01S3/2232 , H01S3/076 , H01S3/0805 , H01S3/0813 , H01S3/0816 , H01S3/097 , H01S3/123
摘要： A CO2 laser has a resonator mirror that oscillates about an axis perpendicular to the resonator axis through an angular range of oscillation sufficient that the resonator is only able to deliver radiation for a fraction of an oscillation period of the mirror. In one example of the laser, the oscillating mirror is an end-mirror of the resonator. In another example, the oscillating mirror is a fold mirror of the resonator.
摘要翻译： CO 2激光器具有谐振器镜，其通过振荡的角度范围围绕垂直于谐振器轴的轴振荡，足够使得谐振器仅能够传递辐射的一部分振荡周期 镜子。 在激光器的一个示例中，振荡镜是谐振器的端镜。 在另一示例中，振荡镜是谐振器的折叠镜。
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公开(公告)号：US07352783B2
公开(公告)日：2008-04-01
申请号：US11060766
申请日：2005-02-18
申请人： Changho Chong
发明人： Changho Chong
CPC分类号： H01S3/0675 , H01S3/06791 , H01S3/08004 , H01S3/08009 , H01S3/08059 , H01S3/105
摘要： A loop is formed with an optical fiber by providing a gain medium having a gain with respect to an oscillation wavelength. Light retrieved by the optical circulator 13 from the optical fiber loop is enlarged and projected to a mirror 23. A diffraction grating 25 is provided with respect to the light reflected in the mirror. The diffraction grating 25 has a Littrow arrangemnt wherein the light is reflected in a same direction as incident light. A selected wavelength is changed in accordance with an incident angle with respect to the diffraction grating 25. Therefore, when the mirror 23 is rotated so as to change the selected wavelength, the oscillation wavelength can be changed at high speed.
摘要翻译： 通过提供相对于振荡波长具有增益的增益介质，通过光纤形成环路。 由光循环器13从光纤回路回收的光被放大并投射到反射镜23。 相对于在反射镜中反射的光提供衍射光栅25。 衍射光栅25具有Littrow布置，其中光以与入射光相同的方向反射。 所选择的波长根据相对于衍射光栅25的入射角度而改变。 因此，当镜23旋转以改变所选择的波长时，可以高速地改变振荡波长。
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25.发明授权Laser based ignition system for natural gas reciprocating engines, laser based ignition system having capability to detect successful ignition event; and distributor system for use with high-powered pulsed lasers 有权用于天然气往复式发动机的基于激光的点火系统，具有检测成功点火事件的能力的基于激光的点火系统; 以及用于大功率脉冲激光器的分配器系统公开(公告)号：US07114858B2
公开(公告)日：2006-10-03
申请号：US10940467
申请日：2004-09-14
CPC分类号： F02P23/04 , F02D41/0027 , F02M21/0215
摘要： A laser based ignition system for stationary natural gas engines, a distributor system for use with high-powered lasers, and a method of determining a successful ignition event in a laser-based ignition system are provided. The laser based ignition (LBI) system for stationary natural gas engines includes a high power pulsed laser providing a pulsed emission output coupled to a plurality of laser plugs. A respective one of the plurality of laser plugs is provided in an engine cylinder. The laser plug focuses the coherent emission from the pulsed laser to a tiny volume or focal spot and a high electric field gradient at the focal spot leads to photoionization of the combustible mixture resulting in ignition.
摘要翻译： 提供了一种用于固定天然气发动机的基于激光的点火系统，用于大功率激光器的分配器系统，以及确定基于激光的点火系统中的成功点火事件的方法。 用于固定天然气发动机的激光基点火（LBI）系统包括提供耦合到多个激光塞的脉冲发射输出的高功率脉冲激光器。 多个激光塞子中的相应一个设置在发动机气缸中。 激光插件将来自脉冲激光器的相干发射聚焦到微小的体积或焦斑，焦点处的高电场梯度导致可燃混合物的光电离导致点火。
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公开(公告)号：US5363387A
公开(公告)日：1994-11-08
申请号：US977673
申请日：1992-11-18
申请人： Edward L. Sinofsky
发明人： Edward L. Sinofsky
CPC分类号： A61B18/24 , H01S3/123 , A61B2017/0019 , A61B2018/00982 , A61B2090/306 , A61B2090/3614 , H01S3/1603
摘要： A variable pulsewidth laser system is disclosed which employs an oscillating reflector to control the duration of laser pulses. In one embodiment, the oscillating mirror is swept (e.g., caused to swing back and forth) about an axis distinct from the optical axis, such that resonant conditions suitable for laser beam generation occur only at a particular location in the oscillating sweep path. By varying the scanning waveform, laser pulses of different durations can be generated.
摘要翻译： 公开了一种可变脉冲宽度激光系统，其采用振荡反射器来控制激光脉冲的持续时间。 在一个实施例中，振荡镜被扫描（例如，绕着与光轴不同的轴线来回摆动），使得适用于激光束产生的谐振条件仅在振荡扫描路径中的特定位置处发生。 通过改变扫描波形，可以产生不同持续时间的激光脉冲。
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公开(公告)号：US4823351A
公开(公告)日：1989-04-18
申请号：US6561
申请日：1986-09-04
CPC分类号： H01S3/121 , H01S3/0826 , H01S3/106 , H01S3/123 , H01S3/105
摘要： For fast variation of the wavelengths of lasers, a rotating chopper mirror is provided in the laser resonator. This mirror alternately transmits the light to a grating or deflects it to at least a second grating or to a second mirror. Instead of a chopper mirror, an oscillating mirror can be used, by means of which the beam can be directed to a grating. The oscillating mirror is moved at constant frequency, but with variable amplitude.
摘要翻译： PCT No.PCT / EP86 / 00104 Sec。 371日期：1986年9月4日 102（e）1986年9月4日PCT PCT日期：1986年3月1日PCT公布。 出版物WO86 / 05631 日期：1986年9月25日。对于激光波长的快速变化，在激光谐振器中提供旋转的斩波镜。 该反射镜将光交替传输到光栅或将其偏转至至少第二光栅或第二反射镜。 代替斩波镜，可以使用振动反射镜，通过该反射镜将光束引导到光栅。 振荡镜以恒定频率移动，但幅度可变。
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公开(公告)号：US4105956A
公开(公告)日：1978-08-08
申请号：US730038
申请日：1976-10-06
申请人： Norman L. Boling
发明人： Norman L. Boling
CPC分类号： H01S3/123 , H01S3/061 , H01S3/0612 , H01S3/0615 , H01S3/0617
摘要： An improved Q-switched laser and laser rod in which the threshold of double pulsing is significantly raised. In a Q-switched laser, the laser cavity includes a front mirror which is partially transmissive, a rear mirror element and a lasable rod like element positioned between the two mirrors. The rear mirror is controlled in such a manner that it sequentially presents reflective and nonreflective surfaces to the laser rod. This then prevents lasing action from occurring until such time as the reflective surface is presented to the rod. In order to prevent double pulsing, pulsing which occurs as the rear mirror is moving into its proper alignment, a pulse suppression optical discontinuity is provided within the laser cavity. This may take the form of a bevel portion on one end of the laser rod itself. The bevel portion is aligned such that it is positioned in the direction of opening of the rear mirror to the rod. The bevel is preferably positioned at an angle greater than the critical angle of the material of the laser rod and serves to prevent shallow angle reflections and refractions from being propagated through the rod or from mirror to mirror.
摘要翻译： 一种改进的Q开关激光器和激光棒，其中双脉冲阈值显着提高。 在Q开关激光器中，激光腔包括部分透射的前反射镜，后镜元件和位于两个反射镜之间的可激光棒状元件。 后视镜的控制方式是使其反射和非反射表面依次呈现在激光棒上。 这样就可以防止发生激光作用，直到反射表面呈现在杆上。 为了防止双重脉冲，随着后视镜正确对准而发生的脉冲，在激光腔内提供脉冲抑制光学不连续性。 这可以采取在激光棒本身的一端上的斜面部分的形式。 斜面部分对准，使得其沿着后镜朝向杆的打开方向定位。 斜面优选地以大于激光棒材料的临界角度的角度定位，并且用于防止浅角度反射和折射从杆传播或从镜子传播到镜子。
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公开(公告)号：US3549256A
公开(公告)日：1970-12-22
申请号：US3549256D
申请日：1968-11-19
申请人： UNITED AIRCRAFT CORP
发明人： BRIENZA MICHAEL J , TREACY EDMOND B
IPC分类号： G01S17/10 , H01S3/00 , H01S3/05 , H01S3/098 , H01S3/105 , H01S3/11 , H01S3/121 , H01S3/123 , H01S3/23 , G01C3/00
CPC分类号： H01S3/08022 , G01S17/102 , H01S3/123 , H01S3/2383 , H01S2301/08
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