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Health & Household > Vision Care > Prescription Contact Lenses > Bifocal & Multifocal Lenses > Bifocal Lenses > B00QT6NAJW
  1. SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. SHINA ZnSe Focal Lens fr CO2 Laser Cutting Engraving Dia18mm FL 25.4/38.1/50.8/101.6mm (50.8mm)

    [B00QT6NAJW]
    Delivery: 10-20 Working Days

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This item may be available in a different size, colour, scent, version or platform. Click below to be directed to product options:

Variations
Product Description

  • Mateial: Znse
  • Diameter:18mm
  • Focal length: 1''/25.4mm, 1.5''/38.1mm, 2''/50.8mm, 2.5''/63.5'', 3''/76.2mm, 4''/101.6mm
  • Thickness:approximate 2mm
  • Edge thickness variation (ETV):<= 0.002''
Additional Information

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 polycrystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.

Specification:

Tolerance of Thickness: ±0.010''

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 Reflectivity Per surface at 10.6 microns: <= 0.20%

Specifications

Country
USA
Binding
Misc.
Brand
MOS
EAN
5055910062315
Label
SHINA
Manufacturer
SHINA
Model
FoL_ZnSe_D18_FL50 us
MPN
FoL_ZnSe_D18_FL50 us
PartNumber
FoL_ZnSe_D18_FL50 us
Publisher
SHINA
Studio
SHINA
Please Note

The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.

Please note that this product is based in the USA, and is designed and labelled to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!

Please also note that certain items cannot be imported, these include Alcohol, Agricultural Remedies, Animals, Batteries, Flammable Materials, Farm Feeds, Currency, Food, Furs, Chemicals, Explosives, Medications, Plants, Poinsons, Seeds, Supplements, Nutrients, Pressurized Cans, Tactical Equipment, Vitamins, Weaponry and Weaponry Accessories. In these cases, information displayed above is for reference/informational purposes only and the item will not be imported. All content is generated and displayed from an automated USA product feed, and if the item cannot be imported for any reason, including carrier restrictions and/or import or sales restrictions under South African or American law, we do reserve the right to cancel and refund the order in full. If you are not sure if we are permitted to bring in an item, please send us an e-mail with a link to the item to confirm.

Please also ensure that you are ordering the correct item for your particular application as returns to the USA are costly. Product reviews are also provided for most of our items, which can give you a good idea for possible things to look out for and the quality of the item. By clicking Add to Cart, you are confirming that the item is correct and you accept the conditions listed here.