Lenses are classified by the curvature of the two optical surfaces. A lens is biconvex (or double convex, or just convex) if
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Plano-Convex (PCX) Lenses have a positive focal length, making them ideal for collecting and focusing light in imaging applic
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Our company is the first to apply aspheric lens in the design and production of magnifiers. Additionally it is applied in dig
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The condensing paperweight magnifying lens is made of optical grade PMMA material. The bottom surface is concave and can be p
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