61-6930-21 Optical Window With Anti-Reflection Coating φ15mm Thickness 2mm WBMA-15C02-10-550
Analyzer, Testing Equipment

61-6930-21 Optical Window With Anti-Reflection Coating φ15mm Thickness 2mm WBMA-15C02-10-550

model: 61-6930-21
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6930-21Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6930-21
Product Brand: SIGMAKOKI CO., LTD.

Features

  • A high quality window ***d to allow light to pass through the inside of a vacuum vessel or the other side of a partition wall.
  • Since the transmittance is increased by an anti-reflection film coat, it can be ***d as a window for observation of a sample or a window for irradiation of a laser.
  • By applying an anti-reflection film coat of dielectric multilayer film, reflection of 4% glass surface is kept below 1%.
  • Since high-quality materials are ***d, the image is not distorted or the laser beam is not diff***d due to the transmission of glass.
  • The angle of the transmitted beam does not change when the window plate is inserted vertically in the laser path.
  • * When a laser with a large aperture is ***d, very slight interference fringes may be observed in the luminance distribution of transmitted light.
  • Transmittance loss may be slightly greater when using at wavelengths other than the specified wavelength range.
  • * Transmittance may be reduced when using at a large incidence angle.

Spec

  • [

    common specification]
  • Material: BK7
  • Substrate surface accuracy: λ/10
  • Parallelism: <5″
  • Coating: Dielectric volume multi-layered reflective prevention film
  • Incident angle: 0°
  • Laser durability: 4J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
  • Scratch - dig: 40?20
  • Effective diameter: 90% of the outer diameter
  • [Individual specification]
  • Reflective prevention film coat wavelength region: 400 - 700nm
  • Outer diameter φD: φ15mm
  • Thickness t: 2mm
  • RoHS conform product

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