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The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

The invention relates to an objective lens for converging light emitted by a light source to irradiate an optical recording medium with the convergent light, an actuator having the same, an optical head for recording information on the optical recording medium and reproducing information recorded on the same, and an information recording/reproducing apparatus utilizing the same.

本发明涉及将从光源射出的光会聚并将聚焦光照射到光学记录介质上的物镜和配备有该物镜的致动器、以及将信息记录在光学记录介质上或对所记录的信息进行再生的光学头和使用该光学头的光学记录再生装置。

A pulsar is a celestial object that emits light in short burst a pulsar in the crab nebula flashes at a rate of 30 times/s,suppose the light pulses are caused by the rotation of a spherical object that emits light from a pair of diametrically opposed "flashlights" on its equator.

脉冲星是一种以短爆发形式辐射光的天体。假设球型天体赤道面上有一对"发光塔"，并且这对发光塔的联线构成赤道面的直径，进一步假设光脉冲产生于球形天体的转动，那么巨蟹座星云中的一个脉冲星的闪光频率是每秒30次。

The quartz product, the stage light bulb, the medical light bulb, the special light bulb, Jin Ludeng, the LED lamp cup, the main product includes: JC, JCD, G4, G5.3, G8, G9, NR11, MR16, JCDR, JDR, GU10, GZ10, JD, JDD, PAR20, PAR30, PAR38, LED serial products, G12 Jin Ludeng photo sources and so on serial products, decorative lighting manufacture.

功率有：10W，20W，35W，50W， AOSLAN LIGHTING澳司朗照明专业制造高品质、长寿命、显色好、光效高的绿色照明产品，专业生产高低压G4、G5.3、G6.35灯珠、高品质G9灯珠、MR11、MR16高低压的素冷光灯杯，高品质GU10、GZ10、PAR20、PAR30、PAR38等光源产品。

When propagating light\|ray passes through two fixed points in the gradient index mediums and a cuspidal variable\|point （at this point the trace equation of propagating light\|ray is non\|differentiable） at the borderline of two different GRIN mediums, the mathematical relationship, which the trace equation of propagating light\|ray and borderline equation of two different GRIN mediums should satisfy, is derived by the Fermat's principle and calculus of variation.

当光线通过梯度折射率介质中两个固定点和两个GRIN介质界线上的可动尖点（光线轨迹方程的不可微点）时，由费马原理和变分法运算推得传输光线的轨迹方程与两种不同GRIN介质的界线方程应满足的微分关系式。

Outdoor advertising posters exposure in daylight easily fade away, you'd want to light characteristics of the ink. The same is blue ink, phthalicacid cyan than light light turquoise blue,孔雀蓝 and hard to change colour.

然后，油不朱边背的拆开料不兵会有很不小一局部不合泌纸张纤维本质，经过氧化结膜潮湿后的不朱层变不厚，颜色也不离会变不浓，这是必然见到的不可制止的本体。

Our company specializes in the design,development,manufacture and trade of LED products, including LED commercial light, LED office light, LED sighting light, LED homing illumination, all kinds of energy-saving lamps and auto eagle-eye LED restraining cyclostyle,etc.

公司专业从事LED商业照明、LED办公照明、LED景观照明、LED家居照明、各种规格的节能灯及汽车食人鱼控制模组等产品的设计开发、制造和贸易业务。

He put on first the aerial breeze, then threw over himself light as a flaming mantle, and over this light a covering of water; he surrounded himself with gusts of wind, took light as his lance and shield, and cast himself downward toward the line of danger.

他提出的第一个空中的微风，然后扔在自己轻如燃烧的地幔，并在此轻覆盖的水；他包围自己的阵风风力，光了他的长矛和盾牌，并自诩为对向下行的危险。

Light Graffiti Artists and Photographers (and Creative Urban Light Graffiti and More Light Art ): Not all graffiti requires paint - or the defacement of buildings for that matter.

10个轻涂鸦艺术家和摄影师（和创新城市轻轨涂鸦和更多的光线艺术）：并不是所有的涂鸦需要油漆-或污损的建筑物此事。

The light source detecter makes used of the variation of the separated voltage by the resistivity of photosensitive resistance input to the singlechip. If the voltage higher than a worth, the singlechip will regard it as high voltage state, it means that the light source has been detected. Otherwise the low voltage state means the light source has not been detected.

光源探测是利用光敏电阻阻值分压的变化向单片机输入，电压大于某值时，单片机认为是高电平，即表示该路探测器感应到光源，否则为低电平，即表示探测器没有感应到光源，如此即可由两路信号判断光源的方向。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。