A system of metastable helium atom beam source has been developed.

研究设计了一种亚稳态氦原子束源系统。

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Optical device, laser beam source, laser apparatus and method of producing optical device.

光学元件，激光光源，激光设备，以及制作光学元件的方法。

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Optical device, laser beam source, laser apparatus and method for producing optical device.

光学元件，激光光源，激光设备，以及制作光学元件的方法。

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The force helicopter was scrambled to find the source of the beam.

BBC: Green laser

The light source is polarized by a Polarized Beam Splitter and reflects off of each of the chips.

ENGADGET: D-ILA and DLP: what are they? HD