FAC300 lenses
         Technical specifications
Material: S-TIH53 (Ohara) 
Length, mm: 4 
Height, mm: 0.5±0.02 Thickness, mm: 0.4±0.01 Refractive index, mm: 1.823 
Effective focal length, mm: 0.3 Rear focal length, mm: 0.08 Transmission, %: >99.5 Power within the angle ± 2.2 mrad, %: >92 
Antireflection coating, nm at one of the wavelengths from the range: 400-1500 
Numerical aperture: 0.7 
Surface quality λ = 633, nm: λ/4 
    
        Produced in: Saratov