[Military-Grade Optical Optimization] PVS14/1431 Eyepiece Filter for ANVIS Night Vision Devices - 202L Coating. Optimized wide-angle distortion correction and infrared cutoff performance. Empowering professional night vision devices: This military-grade night vision eyepiece filter system offers a double upgrade in optical performance and protection. Is your PVS14 or ANVIS 1431 night vision device limited by the field of view distortion and spectral distortion of the original eyepiece? This eyepiece filter, designed specifically for military-standard night vision devices, utilizes a 202L-grade specialty optical coating and aircraft aluminum construction. Not only does it provide seamless compatibility with the original equipment, but it also features professional-grade optimizations for optical distortion correction, multi-spectral management, and physical protection. It's the ultimate choice for night vision users seeking the ultimate observation experience. Key highlights of this product upgrade:Aspherical Optical Design & Distortion Correction Optimization: High-precision aspherical lens design and optimized edge aberration correction algorithms effectively eliminate the pincushion distortion and edge blurring often seen with traditional spherical lenses. Benefits: Provides a flatter field of view and 40% improved edge clarity, reducing visual fatigue during extended observation, making it particularly suitable for professional applications requiring wide-angle reconnaissance. 202L Multi-Spectrum Coating & IR Management Optimization: The upgraded coating process ensures high visible light transmittance while optimizing precise cutoff characteristics in the near-infrared band (800-1000nm). Benefits: Effectively prevents CCD overexposure and image bleaching caused by strong infrared light sources, protecting the image intensifier tube; while also reducing glare on the lens surface, enhancing stealth. Impact-Resistant Structure & Environmental Sealing Optimization Points: Utilizing a 7075 aircraft aluminum alloy mount and a shock-absorbing design, combined with O-ring sealing technology, optimizes overall structural strength and environmental isolation. Benefits: Withstands shock and vibration during field use, effectively protects against dust and fog, and ensures stable optical performance in harsh environments such as humid and dusty conditions. Quick-Release Mount & Polarization Compatibility Optimization Points: Optimized bayonet mount structure enables quick, tool-free installation and removal; lens surface treatment is compatible with the use of stacked polarization filters. Benefits: Quickly switch between filters with different functions based on mission requirements, improving device adaptability; and eliminates reflection interference from surfaces such as water and glass. Product Specifications:Compatible Models: PVS-14, ANVIS 1431, 202L Compliant Lens Material: Optical-Grade Glass (Aspherical) Coating Type: 202L Multispectral Coating Features: IR Blocking, Laser Blocking, Anti-Glare, Anti-Reflection Mounting Method: Screw-In/Quick-Mount Make every night observation as clear as day! This fully optimized eyepiece filter is more than just an optical accessory upgrade; it's a strategic enhancement to the overall performance of your night vision system. Whether used for military law enforcement, field exploration, or astronomical observation, it provides a clearer, more comfortable, and more reliable viewing experience, helping you see every detail of the night sky.