ALKOR Technologies - your CRYSTAL optics supplier.   ALKOR Technologies - your CRYSTAL optics supplier.
ALKOR Technologies - your CRYSTAL optics supplier.
Materials>>Silicon >>Silicon meniscus lenses

Silicon meniscus lenses

Alkor Technologies - manufacturer of custom Silicon meniscus lenses for thermography and pyrometry.

  • Wavelength Range of 1.2 - 7μm
  • Low Density and Dispersion
  • Any Focal Lengths for customer's applications
  • DLC/AR coating for 3-4 micron (MWIR)

Silicon positive meniscus lenses
Used with the shorter radius facing the longer conjugate, these Silicon meniscus lenses act as focusing element with less aberrations than plano-convex Silicon lenses.

Silicon positive meniscus lenses
Cat# Dia,in Dia,mm EFL, mm
Si-pm-12.7-25 0.5 12.7 25.4
Si-pm-12.7-50 0.5 12.7 50.8
Si-pm-25.4-50 1.0 25.4 50.8
Si-pm-25.4-63 1.0 25.4 63.5
Si-pm-25.4-76 1.0 25.4 75.0
Si-pm-25.4-100 1.0 25.4 100
Si-pm-25.4-127 1.0 25.4 127
Si-pm-38.1-50 1.5 38.1 50.8
Si-pm-38.1-63 1.5 38.1 63.5
Si-pm-38.1-76 1.5 38.1 75.0
Si-pm-38.1-100 1.5 38.1 100
Si-pm-38.1-127 1.5 38.1 127
Si-pm-38.1-150 1.5 38.1 150
Si-pm-38.1-200 1.5 38.1 200
Si-pm-50.8-76 2.0 50.8 75
Si-pm-50.8-100 2.0 50.8 100
Si-pm-50.8-127 2.0 50.8 127
Si-pm-50.8-150 2.0 50.8 150
Si-pm-50.8-200 2.0 50.8 200
Any other custom shape, size and focal length are available upon request.

Custom Silicon meniscus lenses are available in any size and cofiguration.

Standard Specifications
Material Silicon optical grade, p or n type
Dimensions 0.00/-0.10mm
Thickness 0.2mm
Focal length tolerance: +/-1% at 10.6microns
Surfaces 60/40
Edges Fine Ground
Surface irregularity ≤3 Fringes
Centration 3 Arc mins

Please do not hesitate to contact us for pricing for any custom size and coatings requirements.

See Also: Germanium optics; ZnSe optics