round top bifocal lens

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... LED Cover For 40 Watts Led High Bay Light Quick Details: 1. Dimension: Diameter 118mm H39mm 2. Beam Angle: 120 degree 3. Match Led: COB ...

IR LED JNJ-TLXI22B30 22MM Diameter Of Case 93% Light Transmit lens Description: Comply with Lumiled edition; Excellent lighting perfo...

Convex Meniscus Specification Materials BK7 or other optical glass,quartz,sapphire,Ge,Si,ZnSe,CaF2 etc Diameter 1.5~300mm Radius R0.......

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... to those of spherical optics. Star Optic offers plano-concave and plano-convex cylindrical lenses in rectangular, square, and form. Rectangu...

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LED Multi Replacement / 3030 Ceiling Light LED Glass LED Multi Feature LED light lenses are available in different shapes like fr...

Al2O3 sapphire glass optical for watch glass,A-axis Sapphire rough for watch protective screem glass 1. what is sapphire glass? Sapphi...

Flashlight Led Lens , Single 60Degree LED Optical Lens For Flashlight Specifications: Model Number SUN-35.8-60 Power 1W|3W Lens size 35.8*16mm Led chi...

... is part of a continued effort to support current trends toward miniaturization. we can can many kinds rod based on different material and siz...

Pink and Brown Canvas Cute Contact Lens Case / Travel Contact Lens Storage Box Description : Product name Canvas Cute Contact Lens Case Model No. W822...

High Transmittance Imported Quartz JGS1 laser protective lenses 1064nmAR coated φ50mm 99% optical window film 3000W Laser protective lens: The base ma...

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Acromatic Lens Designed for 0° Angle of Incidence Less Than 1.75% Reflectance Per Surface @ 400 - 700nm VIS 0° and VIS-NIR Coated Achromats Also Avail...

with Sink hole polished sapphire glass assembly part hardness 9.0 hardness 9.0 sapphire bearing for rolling bearing components/prolate ellipse/pl...

Description: High quality Metal collection, super light, unisex, hot style for ladies and gentlemen. Material: Metal Screw Akulon-coated screw for dur...

With a segment in the lower area of the , a displays two different dioptric powers, which provides presbyopes with clear...