專業Leaky Green Filter廠商

• High transmission in NIR wavelength
  There are few ripples in passband
• Flexibility of interference film design
  Perfectly controlled the green leak
• Excellent environmental durability
  MIL-specifications compliant
  Interference film coated by ion assisted deposition has excellent durability against harsh environment.

Our long experience to produce many kinds of filters by ion assisted deposition as well as sputtering has enabled the complicated film design to be achieved.
Leaky green filter realizes the excellent transmission in NIR wavelength, good attenuation in visible wavelength and optimized green leak simultaneously.
Asahi can supply suitable size of filter for binocular from small to large.