Light Night Vision Lenses (PVS-14、PVS-31 style)
The ultra-lightweight lenses to be on par with the US-made world-class night vision optics. These lenses surpass most competitive products in key aspects such as weight and system gain. Its high-transparency coating is compatible with the operational spectrum of Gen2+, Gen3 and 4G image intensifiers. All housing platforms with PVS-14、PVS-31 spec threads can adopt these lenses.
Eyepiece Assembly：
EFL:25.1mm+/-0.5mm；
Exit pupil diameter≥14mm on axis；
Exit pupil distance：25mm；
Field of view ≥40°(for 17.5mm image format)
Lens material：Glass (include aspherical glass)
Distortion≦-5.5% (at semi-field angle of 20°)
Immersion:20 meters for not less than 2 hours
Weight≦ 57 grams
Lighter Objective Assembly：
EFL:25.1mm+/-0.5mm；
F-Number≤1.23；
Field of view ≥40°(for 17.5mm image format)
Lens material：Glass (include aspherical glass)
Distortion≦-4.7% (at semi-field angle of 20°)
Immersion:20 meters for not less than 2 hours
Weight≦41.5 grams
Eyepiece and Objective Assembly
Distortion：＜1%，+/-0.5% at semi-field angle of 20°；
Resolution：adapted to high resolution generation 3 intensifier；
Magnification：1×
Diopter focus：+2 to -6
Field of view ≥40°(for 17.5mm image format)
Field of view ≥42°(for 18mm image format)
