Foldable Panoramic Night Vision Goggles
MHNV GPNVG Pro | Professional Foldable Panoramic Night Vision Goggles with 120° Ultra-Wide Field of View and Modular Convertible Design
Advanced optoelectronic observation systems demand exceptional situational awareness in low-light conditions. The MHNV GPNVG Pro delivers a revolutionary 120-degree horizontal panoramic field of view through precision-engineered quad-tube architecture. This Foldable Panoramic Night Vision Goggles system integrates four 18 mm S-25 photocathode image intensifier tubes with 22.5 mm F1.18 lens assemblies, achieving 57–64 lp/mm resolution and 120 lp/mm MTF performance. The modular foldable structure reduces storage volume by 40 percent while maintaining optical collimation across thousands of deployment cycles. Engineered at Xi'an MH Electronics And Technology Co., Ltd. with 12+ years of full-stack manufacturing expertise, this system weighs just 730 grams and operates 30–80 hours on flexible CR123 power configurations, serving professional users across 60+ countries.

Ultra-Wide Panoramic Vision Architecture
Traditional dual-tube observation systems limit operators to 40-degree fields of view, creating dangerous blind zones during critical surveillance tasks. The GPNVG Pro eliminates this constraint through synchronized quad-tube operation. Each optical pod functions independently with individual objective focus adjustment, enabling precise near-field to far-field observation across different zones simultaneously.
The 120±2 degree horizontal coverage pairs with 50±2 degree vertical visibility. This panoramic capability transforms how you perceive your operational environment. You maintain peripheral awareness without constant head movement, reducing detection risk and physical fatigue during extended missions.
Revolutionary Foldable Modular System
What sets the products apart is the precision hinge engineering. The kinematic interface collapses lateral pods against the central eyepiece body in under 10 seconds without tools. This design preserves perfect optical alignment through precision-machined stops and locking detents.
Compact storage becomes reality. The folded configuration fits standard tactical cases where conventional four-tube systems cannot. Teams share equipment more efficiently. Airborne insertion no longer requires oversized containers. When deployed, the system locks into calibrated position, delivering seamless image fusion across all four channels.
Quick-detach functionality enables instant conversion between helmet-mount and handheld observation modes. Mission parameters change rapidly—your equipment should adapt just as fast.
Advanced Optical Performance Specifications
| Parameter | Specification |
|---|---|
| Model | MHNV GPNVG Pro |
| Magnification | 1x |
| FOV (Horizontal) | 120±2° |
| FOV (Vertical) | 50±2° |
| Photocathode | 18 mm S-25 |
| Resolution | 57–64 lp/mm |
| Lens System | 22.5 mm F1.18 |
| MTF | 120 lp/mm |
| Focus Range | 250 mm to infinity |
| Eye Relief | 30 mm |
| Pupil Diameter | 8 mm |
| Diopter Range | +0.5 to -2.5 |
| IPD Adjustment | 50–85 mm continuous |
| IR Illuminator | 850 nm, 20 mW |
| Battery | CR123×1 internal or CR123×4 external |
| Battery Life | 30–80 hours |
| Operating Temp | -40°C to +55°C |
| Humidity | 5–95% |
| Protection | IP65 (IP67 optional) |
| Dimensions | 155×136×83 mm |
| Weight | 730 g (without battery) |

Continuous Diopter Adjustment Technology
Standard observation devices force you to swap preset lens caps, creating opportunities for lost components in operational environments. The Foldable Panoramic Night Vision Goggles GPNVG Pro integrates smooth optical element rotation handwheels directly on the main unit. You achieve perfect focus for any prescription within the +0.5 to -2.5 diopter range without removing parts.
This continuous adjustment system eliminates loose caps that fall and disappear during critical moments. Optical clarity remains under your direct control throughout the mission timeline. Each user configures personal settings in seconds, making shared equipment truly practical.
Lightweight Ergonomic Engineering
Neck fatigue degrades performance during extended observation periods. MHNV engineering teams addressed this through strategic material selection. Magnesium alloy construction in key sections reduces total system weight to 730 grams—150 grams lighter than baseline quad-tube designs.
This weight optimization enables 6–8 hour comfortable helmet-mount operations. The reduced front-end mass decreases cervical strain, maintaining operator alertness through lengthy surveillance rotations. Combined with remote battery pack counter-weighting, the system achieves balanced helmet integration.
Flexible Power Management
Mission duration requirements vary dramatically across operational contexts. The dual-mode power architecture accommodates both scenarios. Internal CR123 single-cell configuration supports compact 30-hour operations for lightweight rapid-deployment scenarios.
Extended missions benefit from the CR123×4 external battery pack, delivering 80-hour runtime. The external pack doubles as helmet counterweight, improving front-to-back balance. Hot-swap capability ensures continuous operation during multi-day surveillance assignments.
Manufacturing Excellence and Quality Control
Every GPNVG Pro system undergoes comprehensive testing in MHNV's Class-10,000 cleanroom facilities. Optical collimation verification ensures all four tubes align within microradian tolerances. Figure of Merit consistency testing guarantees uniform brightness and gain across channels.
Environmental validation follows international standards. High-G shock testing simulates drop impacts and recoil forces. Nitrogen purge leak testing prevents internal fogging. Modulation Transfer Function analysis confirms image sharpness meets specification. Diopter adjustment torque testing verifies settings remain locked during high-vibration activities.
MHNV's vertically integrated manufacturing controls every production stage—from optical design through final assembly. This complete engineering oversight enables rapid customization and consistent quality output.

FAQ
Q: Does the foldable bridge affect optical alignment during field operations?
A: High-precision products utilize precision-machined stops and locking detents that return tubes to exact collimated positions every deployment cycle, maintaining optical alignment through thousands of open-close operations. The kinematic interface design ensures repeatable positioning within microradian tolerances, eliminating image misalignment concerns. Supplementary testing validates collimation stability after environmental stress exposure including shock, vibration, and temperature cycling.
Q: Why does quad-tube architecture outperform wide-angle dual-tube alternatives?
A: Four independent image intensifier tubes deliver true 120-degree coverage without geometric distortion or severe light loss associated with ultra-wide-angle lens systems, preserving edge-to-edge image quality and depth perception accuracy. Each tube operates at optimal efficiency within its coverage zone, maintaining resolution consistency across the entire panoramic field. Wide-angle lens approaches introduce barrel distortion and vignetting that compromise operational effectiveness.
Q: What maintenance protocols ensure long-term hinge reliability?
A: Hinge assemblies require inspection every six months for debris accumulation and receive dry PTFE lubrication as needed to maintain smooth articulation, while internal electrical ribbon cables are monitored for compression damage or conductor fatigue. Visual inspection verifies locking detent engagement and stop surface condition. Operational testing confirms resistance-free pod movement through full articulation range without binding or excessive play.
Q: Can individual tubes be replaced if one unit fails?
A: Yes, modular construction enables field-level tube replacement, though performance matching is critical—replacement tubes should exhibit similar Figure of Merit, gain characteristics, and phosphor type to maintain balanced image presentation. MHNV provides matched tube sets with documented performance specifications to ensure compatibility. Optical collimation requires professional verification after any tube replacement to maintain system alignment.
Q: How does IPD adjustment accommodate different operator head sizes?
A: Continuous interpupillary distance adjustment spans 50–85 mm without discrete presets, utilizing precision handwheel mechanisms that enable smooth positioning for optimal binocular vision alignment regardless of individual facial geometry. This unrestricted adjustment range accommodates 95th-percentile operator populations. Lock mechanisms maintain IPD settings under dynamic operational conditions including running, climbing, and vehicular transport.
Contact MHNV for Custom Solutions
Ready to enhance your operational capabilities with professional Foldable Panoramic Night Vision Goggles? Contact our technical team at sarah@mh-elec.com for detailed specifications, performance demonstrations, and tailored solutions.
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