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1 Piece (20 x 2 mm) Glass for Optical Window in Crystal...

ZnSe Focusing Lenses for Optical Welding Machines - 12mm to 28mm Diameter,...

Gallium Arsenide Optical Lenses Sheet - GaAs Focusing with Various Focal Lengths...

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window for Fluorescence...

Magnesium Fluoride Ultrathin Crystal Substrate (MgF2) - Sheet for High Purity Optical...

1pcs 850nm High Transmission Optical Glass Filter Lens Narrow Band Infrared Light (30x1mm)

Optical Lens for Microscope Tube - Focal Length 180 mm and 200...

Barium Fluoride (BaF2) Infrared Lens - Optical Window for UV and IR...

Monocrystalline Silicon Infrared Lenses with Anti-Reflection Coating for Electronic Sensors - 3-5...

Neutral Density Optical Filter Absorption Type-50x50mm Square Attenuation Sheet, Transmittance 0.0001%-90%,1 Piece(50% Transmittance)

Absorption Type Neutral Density Optical Filter - Square Attenuation Sheet 50 x...

D131F1200 Double Separation Monolayer Blue Film Objective Lens for Astronomical Telescopes -...

Optical Fluoride Lenses - BaF2 Infrared Window, Multiple 1 Unit(30x1mm)

Magnesium Fluoride (MgF2) Ultra Fine Crystalline Substrate - High Purity Optical Window...

Absorption Type Neutral Density Optical Filter - Square Attenuation Sheet 50x50mm, Transmittance...

850nm High Transmittance Optical Glass Filter Lens - Narrow Band Infrared Light...