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Wafer for Window with Coated Silicon Substrate - Monocrystalline Optical (Diameter 25-105mm, Thickness 0.5mm)

PMMA Convex Lens for LED Flashlight, 10-38mm Diameter Transparent Condenser Lens(1pcx23mm)

APO Flat Field Complex Achromatic Lens - 2X, 5X, 10X, 20X, 50X Magnification

D60 360-900mm Refractive Achromatic Lens with Double Separation for DIY Astronomical Telescopes...

PMMA Convex Acrylic Lens 10-66mm Aspheric Optical for Zoom LED Flashlight Bike...

High Resolution Achromatic 50mm Lens for DIY Astronomy Telescopes - Multilayer Coated...

Fresnel Lens 50-100mm PMMA Threaded Condenser for LED Projector VR(D90mmxFL50mm)

10-38mm PMMA Convex Aspherical Lens for Zoom LED Flashlight, Bicycle Head Lamp Replacement (Clearx29mm)

Fresnel Lens 50-100mm PMMA Threaded Condenser for LED Projector VR(D100mmxFL100mm)

APO Flat Field Complex Achromatic Lens - 2X, 5X, 10X, 20X, 50X Magnification

D80 F600 Astronomical Telescope Objective - 80mm Aperture 600mm Focal Length 1pc

Fresnel Lens 50-100mm PMMA Threaded Condenser for LED Projector VR(D90mmxFL25mm)

Borosilicate Glass Fresnel Lens 80-250mm for Stage Spotlight(D 80mm)

1 x Flat Convex Acrylic Optical Lens Outer Diameter 1-66 mm for...

Fresnel Lens 50-100mm PMMA Condenser for LED Projector VR,1pcs(D80mm-FL50mm)

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D25x2mm)

150mm PMMA Fresnel Lens Optical Magnifier 92% Transmission(150mmx90mm)

Fresnel Lens PMMA Threaded Condenser for LED Light Projector VR DIY,1pcs(D50mmxFL40mm)

PMMA Convex Lens for LED Flashlight, 10-38mm Diameter Transparent Condenser Lens(1pcx24.8mm)

Fresnel Lens 50-100mm PMMA Threaded Condenser for LED Projector VR(D50mmxFL28mm)

5.8" Fresnel Lens Set F185 F120 for DIY Projector FPV Glasses,1pcs

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D30x2mm)

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

Fresnel Lens PMMA Threaded Condenser for LED Light Projector VR(D40mm-FL40mm)

1pcs Infrared Germanium Lens Double Sided Coating - Window Sheet for Thermometers(D16/15x2mm)

PMMA Convex Acrylic Condenser Lens 10-38mm Aspheric Optical for Zoom LED Flashlight...

Fresnel Optical Lens 100mm Acrylic Flat Magnifier for Outdoor Sunlight Concentration(F40mm)

APO Flat Field Full Complex Achromatic Objective Lens - 2X, 5X, 10X,...

20-66 mm Angular Flat Convex Acrylic Lens for Flashlight LED Focusing Torch...

Encased Flat Convex Acrylic Lens 10.5 mm-50 mm for Torch, LED Focusing,...