Optical Instruments

CN ZnSe Focus Lens Dia 18mm 19.05mm 20mm FL 38.1 50.8 63.5 1.5" 2" 2.5" 3" for CO2 Laser Engraving Cutting Machine

$13.00 $11.70

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  • Application: For CO2 Laser Engraving Cutting Machine
  • Diameter: 18mm 19.05mm 20mm
  • Usage: Optical
  • Brand Name: DRAGON DIAMOND
  • Material: CN ZNSE
  • Model Number: CN Lens
  • Structure: Plano-convex
  • Focal Length: 38.1-101.6 mm
  • Shape: Meniscus

  • Package Size: 10cm x 10cm x 5cm (3.94in x 3.94in x 1.97in)
  • Package Weight: 0.02kg (0.04lb.)
  • Unit Type: piece

  • Author: Ktpt3690
  • Date: 2018-03-30
  • lens super star 5 packed!!! отслеживалась to sms even has come!!! seller 5 stars
  • 5/5

  • Author: Bruno Rodrigues35
  • Date: 2018-04-05
  • You describe both lens types as MENISCUS and that is why I bought them. The 20mm diameter lens is exactly as expected. It is a meniscus lens. Sadly the 18mm 38mm focal length lenses are both plano-convex with a flat MIRROR bottom face. You can see this clearly in the attached picture. The left lens is the 20mm meniscus and reflected images are distorted because the face is concave. The one on the right is one of the two 18mm lenses and as you can see it is a perfect mirror with a FLAT face. This is NOT a meniscus lens. Is this a shipping error? Has your stock become mixed up? Can you send me 2 replacement REAL meniscus lenses? If not, a full refund for the two 18mm lenses? Many thanks for your attention to this matter
  • 1/5

  • Author: Natali82 Ahmetova
  • Date: 2017-12-23
  • all is very perfect. like lens. packed very well. thank you
  • 5/5