Optical Filter

High Quality Filters at Competitive Prices.

OPTICAL FILTER

INTERFERENCE BANDPASS FILTER

  •  Thickness : 0.25“ normal
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : Commercial Polish
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerasce : +0.0/-0.25mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 80% of diameter
  • Chamfer : 0.3mm at 45 typicals

REFLECTIVE NEUTRAL DENSITY FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

ABSORPTIVE NEUTRAL DENSITY FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

LONG WAVE PASS FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

SHORT WAVE PASS FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

COLOR GLASS BANDPASS FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

COLOR GLASS LONG WAVE SHARP CUT FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

HEAT CONTROL FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical

HEAT ABSORBING FILTER

  • Substrate : VUV CaF2, UVFS of BK7
  • Surface Flatness : λ/2 for Y-direction, λ/4 for X-direction @ 633nm
  • Surface Quality : 20-10 laser quality
  • Centration Error : < 3 arc min.
  • Focal Length Tolerance : ± 0.5%
  • Diameter Tolerance : +0.0/-0.20mm
  • Thickness Tolerance : ±0.25mm
  • Clear Aperture : > 85% of diameter
  • Chamfer : 0.3mm at 45 typical