Glass ball lens

Material

BK7, Borosilicate, Fused Silica, Sapphire, CaF2, ZnSe, Ruby

Diameter

0.5-10mm

Surface quality

40/20, 20/10, 10/5

Radius of curvature

R0.5-300

Dia tolerace

0.01, 0.001

Centration

3 arc min

Ceter thickness tolerance

±0.01, ±0.1

Clear aperture

50%-60%

Glass ball lenses are widely used for coupling fiber and semiconductor lasers, or photodetectors.  It’s much smaller than a normal lens, and it’s completely polished, so be careful when using it. But it can reduce the size and weight of the device. With a positive focal length, used at the unit conjugate point, can eliminate all kinds of aberration.

ball lens detail

Applications:

  • Fiber optic connector
  • Ball check valve
  • LED encapsulating
  • Bar code scanner
  • Parallel photogeneration

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