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You've selected a laser module. The power is right, the beam shape is clean, the form factor fits your enclosure. Then you deploy it outdoors — and the range drops by half in rain. Or you aim it into a liquid-filled tank and get no meaningful refle..

[Refractive Index for Different Wavelength in Different Material] Refractive Index for Different Wavelength in Different Material It is Isaac Newton published the refraction phenomenon for the light pass through a prism on 1672, that estab..