Using the continuous sending laser light source and semiconductor photoelectric position sensitive device, a high accurate tri-dimensional non-contact optical measurement system is designed.

利用连续发射的激光光源和半导体光电位置敏感器件，设计了一种三维非接触高精度的光学测量系统。

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The source of the system is determined through researching the interference light (Arc light) characteristics and the characteristics of the laser light source and clear welding images are obtained.

通过研究焊缝跟踪干扰光（电弧光）的特点和激光光源的特点，确定了该系统的光源，获取了清晰的焊缝图像。

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The device comprises a semiconductor laser light source, an optical beam shaping system, an optical beam transmission system, an optical beam scanning system, an optical focusing system, and the like.

该装置包括半导体激光光源、光束整形系统、光束传输系统、光束扫描系统、光学聚焦系统等。

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Intensity, if we increase the intensity, we're not increasing the energy in each photon, we're just increasing the number of photons that we're shooting out of our laser, whatever our light source is.

强度，如果我们增加强度，我们增加的不是,每个光子的能量，我们增加的仅仅是,从我们激光源射出的光子数，无论我们的光源是什么。

麻省理工公开课 - 化学原理课程节选

Laser, light source and radiofrequency treatments.

CNN: Wrinkles

And since ultrasound travels in a tight line akin to laser light, the emergent tones are audible only in a narrow, cylindrical path from source to ear.

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