PVS-31 Night Vision Binocular

PVS-31 Night Vision Binocular | Dual-Tube Gen 2+/Gen 3 System with Gold-Grade Tube Pairing for Professional Night Operations

The PVS-31 Night Vision Binocular represents Xi'an MH Electronics And Technology Co., Ltd.'s enterprise-grade solution for demanding low-light operations. Engineered with gold-grade paired Image Intensifier Tubes (IIT) featuring SNR variance under 2 and gain variance below 10%, this dual-tube system delivers exceptional depth perception and stereoscopic vision. Equipped with white phosphor Gen 2+ or Gen 3 technology achieving FOM ratings from 1600 to 2200+, the device maintains resolution exceeding 60 lp/mm with collimation tolerance held to 0.1°. Housed in a polymer-carbon hybrid construction weighing under 490g, it provides 40–100 hours runtime with IP67 waterproofing. MHNV® combines 12+ years of manufacturing expertise with full-stack R&D capabilities to deliver reliable performance across professional applications.

Gold-Grade Tube Pairing Technology

The product features MHNV®'s proprietary tube selection process that eliminates performance inconsistencies between left and right channels. Each unit undergoes rigorous pairing protocols ensuring SNR variance remains below 2 and gain variance stays under 10%.

This precision matching prevents eye strain during extended use. The 18 mm S-25 photocathode delivers superior light conversion, while white phosphor technology provides natural grayscale imaging that enhances target identification speed. Resolution exceeding 60 lp/mm ensures sharp detail recognition from 0.25 meters to infinity.

The 25 mm F/1.2 lens system captures maximum available light. Combined with a 40° field of view, operators gain comprehensive situational awareness without sacrificing optical clarity.

Technical Specifications

Zero-Fatigue Optical Alignment System

MHNV®'s collimation process maintains optical alignment within 0.1° tolerance across both viewing channels. This precision engineering eliminates double vision and prevents the neurological fatigue that occurs when your brain struggles to merge misaligned images.

Unlike standard assemblies that accept up to 0.5° variance, our high-precision alignment enables 8+ hour continuous operation without discomfort. Each articulating bridge undergoes individual calibration using specialized test equipment.

The adjustable interpupillary distance from 50-72 mm accommodates different facial structures. Combined with -4DS to +4DS diopter adjustment, users achieve perfect focus regardless of individual vision characteristics.

Lightweight Ergonomic Construction

The polymer-carbon hybrid housing reduces total system weight to 490g while maintaining structural integrity. This advanced material selection provides the strength of traditional aerospace aluminum at 40% less weight.

The articulating bridge design allows independent pod flip-up functionality. You can quickly switch to monocular operation or use one eye for thermal imaging while maintaining night vision in the other.

Our gravity management engineering positions the center of mass 15% closer to your forehead mounting point. This weight distribution transforms the wearing experience, significantly reducing neck strain during prolonged operations.

The IP67 waterproofing protects internal components during submersion. Operating temperature range from -40℃ to +55℃ ensures reliable performance across extreme environmental conditions.

Extended Runtime Power Management

The PVS-31 Night Vision Binocular offers flexible power configurations matching your operational requirements. Internal CR123 battery mounting provides compact carry for short-duration missions.

External CR123×4 battery box configuration extends runtime to 100 hours. This rear-mounted pack serves dual purposes—providing extended power while acting as a counterweight that further reduces front-heavy helmet strain.

AUTO mode intelligently adjusts gain based on ambient light conditions. Manual IR activation provides supplemental illumination through the integrated 850 nm emitter when operating in absolute darkness.

The efficient power management system consumes minimal energy. You maintain operational readiness throughout extended nighttime activities without battery anxiety.

Professional Applications

Search and rescue teams rely on the stereoscopic depth perception for navigating complex terrain during nighttime operations. The 40° field of view provides situational awareness while maintaining focus on immediate surroundings.

Security professionals utilize the flip-up articulating design to quickly transition between night vision and unaided vision when moving through mixed-lighting environments. The auto-gating protection prevents tube damage from sudden exposure to bright light sources.

Wildlife researchers conduct nocturnal observation studies with minimal disturbance. The white phosphor imaging delivers natural contrast that aids in species identification and behavioral documentation.

Law enforcement tactical units depend on the rugged IP67 construction during high-humidity operations. The wide operating temperature range ensures functionality across diverse geographic deployments.

MHNV® Manufacturing Advantage

Xi'an MH Electronics And Technology Co., Ltd. operates integrated engineering facilities covering optical design, IIT integration, FPGA processing, and precision assembly. This full-stack capability enables direct customization communication between your technical team and our engineers.

Our Class-10,000 cleanrooms ensure contamination-free IIT calibration. Each product undergoes comprehensive testing including SNR verification, FOM measurement, resolution analysis, halo assessment, and EBI evaluation.

ISO 9001:2015 certification demonstrates our commitment to consistent quality management. CE, RoHS, and FCC compliance ensures international regulatory acceptance across 60+ countries we serve globally.

The 12-year track record delivering night vision solutions provides deep expertise in optical-electronic system optimization. We understand the performance requirements professional users demand.

Complete OEM Customization Services

MHNV® provides comprehensive customization across every product layer. Tube selection allows you to specify exact FOM ranges, phosphor color preference, and performance characteristics matching your application requirements.

Firmware customization includes user interface language localization, gain curve adjustment, and video overlay configuration. We implement your branding requirements through housing modifications, logo placement, and custom color finishes.

Mechanical design adaptation accommodates unique mounting requirements or interface specifications. Packaging customization delivers your branded presentation with multilingual documentation.

Our engineering team provides rapid prototyping for ODM projects. Sample production completes within 15-25 days, allowing quick validation before mass production commitment.

FAQ

Q: What benefits does the white phosphor technology bring in this product compared to conventional green phosphor systems?

A: White phosphor technology provides greyscale imaging more similar to natural human vision than the monochromatic display of green phosphor, greatly increasing target identification speed and lowering eye strain during 6 to 8 hour plus missions. Operators can see subtle details in complex environments where conventional green imaging would blend textures together, and the neutral colour temperature reduces the neurological processing burden that leads to headaches during extended viewing sessions.

Q: What operating performance does the 0.1° collimation tolerance impact?

A: The 0.1° optical alignment tolerance assures that both picture channels converge at the exact same point of focus, eliminating the double vision and depth perception issues that occur with loosely-aligned systems. This accuracy spares your brain the effort of merging misaligned images – a process that results in quick weariness, headaches and a reduction in situational awareness. Professional operators on 8-12 hour surveillance missions report significantly less eye fatigue than with ordinary binoculars with 0.5° or more alignment deviation.

Q: Can the articulating bridge system be used in a monocular configuration?

A: Yes, the pod flip-up design is independent, you may flip up the left or right viewing channel and the other channel stays active. This setup lets you use your thermal optics, laser rangefinder or unaided eye at the same time while still having nite vision capability in the other eye. The articulating mechanism locks positively in the down and up positions to avoid unintentional movement during dynamic operations.

Q: What is the realistic runtime difference between internal and external battery setups?

A: Internal CR123 battery mount for 40 to 50 hours of continuous operation in a small design for optimal use during short length missions. An external CR123×4 battery pack provides an additional 80 to 100 hours of run time, and also acts as a rear counterbalance, reducing helmet front-loading by about 30%. This twofold benefit makes the external design preferable for longer tasks where the limiting element is neck fatigue.

Q: How does MHNV®'s gold-grade tube pairing technique differ from the normal pairing process?

A: Standard tube pairing often puts both channels in the same overall performance category, but may have SNR discrepancies of 4-6 points and gain differences greater than 15%. MHNV®’s gold-grade selection procedure measures actual SNR and gain value on each tube and then matches tubes within 2-point SNR variance and 10% gain difference. This close tolerance matching guarantees that each eye sees essentially the same image brightness and clarity, reducing the perceptual imbalance that leads one eye to dominate and the other to work harder.

Contact MHNV® for Professional Night Vision Solutions

Ready to experience enterprise-grade night vision performance? Email sarah@mh-elec.com for PVS-31 Night Vision Binocular detailed specifications, customization options, and delivery schedules.