UV Fused Silica Lenses for Colour Measurement

Similarly to N-BK7, UVFS has a fairly consistent transmission across UV/VIS/NIR
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Description

Knight Optical can offer UV Fused Silica Lenses for Colour Measurement Applications. Similarly to N-BK7, UV Fused Silica has a fairly consistent transmission across UV/VIS/NIR, meaning that that transmission in each region is almost equal. This in turn means that any image or measurement taken is not skewed towards one colour, and a more accurate measurement can be taken. This can be used in conjunction with an IR Cut Filter in cameras to remove a lot of the NIR noise giving a clearer image with better colour clarity/contrast. UV FS is comparable to N-BK7 or other similar optical glasses in its performance, having a very similar average transmission over the VIS range up to approximately 2000nm and a slightly lower refractive index. The Abbe constants of UV FS are also very similar to that of N-BK7, although slightly higher. Read PDF for full spec

  • Measurement - Equipment & Instruments
  • Silica Lenses for Color Measurement
  • precision optics for laboratories
  • IR Cut Filter in cameras

Product characteristics

Material:
UV Grade Fused Silica
Operating Wavelength:
587nm
Diameter Tolerance:
+0 / -0.10mm
Centring Tolerance:
<5 arc min
Focal Length Tolerance:
± 0.2mm (<10mm) ±2.0% (10mm – 1000mm)
Centre Thickness Tolerance:
±0.2mm
Surface Figure:
3/ 3 (1)
Surface quality:
<40-20 Scratch/Dig
Coating:
Optional

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Domain icon Manufacturer/ Producer

ME17 1AB Harrietsham - United Kingdom

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