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Brand New 20 mm ZnSe Focal Lens for CO2 Laser Cutting Engraving
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Price
$46.89
Brand New 20 mm ZnSe Focal Lens for CO2 Laser Cutting Engraving
Product Description
ZnSe Focal Lens for CO2 Laser Cutting Engraving 80W, 90W Focus Length, 50.8mm 2"
FEATURE:
- Material: Znse
- Diameter: 20 mm
- Focal length: 50.8mm
- ZnSe is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications.
- Zinc Selenide (ZnSe) - transparent in wide spectral range from yellow (visible) to far IR. ZnSe material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined. To obtain superior transmittance, ZnSe crystals are grown by Chemical Vapor Deposition process . Zinc Selenide is poly crystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.
Specification:
| Diam | 20 mm |
|
Thickness |
approximate 2mm |
|
Tolerance of Thickness |
±0.010'' |
|
Diameter |
+0.001''-0.005'' |
|
Edge thickness variation (ETV) |
<= 0.002'' |
|
Aperture |
90% of the Diameter |
|
Face accuracy (radial deviation / irregularity) at 0.63um |
<= 0.20% |
|
Surface Figure (power-irregularity) at 0.63 um |
Plano:0.1 fringe - 0.5 fringe Radiused: depending on radius |
|
Surface Quality |
20-10 |
|
AR Coating Reflective Per surface at 10.6 microns |
<= 0.20% |
Additional Details
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