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G2 Focal Lens Dia=6.33mm FL=4.02mm Laser Collimating Collimator Collimation Glass for Diode Module - AliExpress Lights & Lighting
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Amazon.com: TEN-HIGH CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens Laser Focus Lens, ZnSe for CO2 Laser Engraving Cutting Machine, Dia18mm FL50.8mm
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The focal volume of a Gaussian laser beam scales with the numerical... | Download Scientific Diagram
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