Optical Instrument Light Filter

Features

Specifications

• Diameter:
  25.0 millimeters
• Density Variability:
  Not variable
• Surface Material:
  Zinc selenide
• Surface Parallelism:
  3.0 minutes
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-348-2404
• Special Features:
  Polarizes radiation from unpolarized laser and attenautes radiation; mounted in rotary holder; wire spacing 1200 g/mm; clear aperture; surface quali type 40/20 scratch/dig; groove parallelism to edge porm 0.5 deg; damage threshold cw laser 100 w/cm squared; pulsedlaser damage at 100 nsec pulse 2j/cm squared; transmittance at peak: porm 85pct; wire grid; extinction ratio: 10.6u - 200: 1; 4.0 u - 150: 1; 3.0 u - 50: 1