Plano-Convex Lens


Products Description:Focus Technology's spherical lens cover various of plano, concave, and convex co


From prototype to production, Focus Technology designs, manufactures, and coats spherical lens. Spherical lens are one of the most basic optical components to produce. With complete in-house capabilities, Focus is able to offer spherical lenses at the lowest pricing with fast delivery times.

Plano-Convex Lens is widely used where one conjugate point (object distance S or image distance S' ) is more than five times the other. This lens shape is near best-form for either focusing collimated light or for collimating a point source.


Technical Parameters:





N-BK7, CDGM H-K9L, Fused silica, CaF2, Sapphire

Design wavelength


Design index (bk7)

1.51680 for BK7, 1.45846 for Fused Silica

Diameter tolerance

+0.0, 0.15mm

+0.0, 0.05mm

Paraxial focal length






Clear aperture



Surface quality

60-40 scratch and dig

10-5 scratch and dig

Surface irregularity

< λ/4

< λ/8

Protective bevel

0.25 + 0.25, -0.0mm

0.2 ± 0.1mm

Note for Lens:

(1). Lens made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Borofloat, or other optical glass supplied by Schott and Chinese CDGM are available upon request.

(2). Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available, apart from round, Lens at shape of square are available as well.

(3). 90% clear aperture is available upon request.

(4). Better bevel is available upon request.

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