61-6957-28 Laser Line Filter (High Transmittance Type) Center Wavelength 325nm φ12.5mm VPFHT-12.5C-3250
Analyzer, Testing Equipment

61-6957-28 Laser Line Filter (High Transmittance Type) Center Wavelength 325nm φ12.5mm VPFHT-12.5C-3250

model: 61-6957-28
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6957-28Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6957-28
Product Brand: SIGMAKOKI CO., LTD.

Features

  • A filter that extracts light in a specific wavelength range.
  • Very high transmittance is achieved in the transmission band.
  • A short distance from the transmission band ca***s a steep drop, with little transmission near the transmission band.
  • Since a dielectric multilayer film with low absorption is ***d, the transmittance is high and the specified wavelength can be separated efficiently.
  • Since the interference filter is fixed to the metal frame, it is easy to fix to the holder and handle the element.
  • Filters can be selected from a number of wavelengths ranging from 325 nm ultraviolet to 1064 nm near-infrared.
  • An interference filter (VPF) with a wider cutoff band is also available.
  • * The characteristics of the interference filter dep*** on the incident angle. When the angle is tilted to the optical axis, the center wavelength moves to the short wavelength side, and the transmittance also decreases.
  • * Enter a parallel beam or a light close to the parallel beam at 0° to the optical axis.
  • * The narrower the half-width, the greater the angular dep***ency.

Spec

  • [

    common specification]
  • Coating: Dielectric multi-layered film
  • Incident angle: 0°
  • Maximum transmittance: ≧90%, ≧80% (VPFHT-3250, VPFHT-3550) , ≧85% (VPFHT-36380, VPFHT-3720)
  • Effective diameter: φ8.5mm (φD=φ12.5mm) , φ22mm (φD=φ25mm)
  • Scratch - dig: 60-40
  • [Individual specification]
  • Center wavelength: 325nm
  • Outer diameter φD: φ12.5mm
  • Half width: 1.75±0.55nm
  • Short-wavelength side cut band (OD5 band): 291.0 - 321.8nm
  • Short-wavelength side cut band (OD6 band): 299.0 - 320.1nm
  • Long-wavelength side cut band (OD5 band): 328.3 - 380.7nm
  • Long-wavelength side cut band (OD6 band): 329.9 - 357.5nm
  • RoHS conform product

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