P45 Night Vision Binocular Manual Gain PVS 31

P45 Night Vision Binocular Manual Gain PVS 31 | Dual-Tube Professional System with Gold-Grade IIT Matching

The P45 Night Vision Binocular Manual Gain PVS 31 from Xi'an MH Electronics And Technology Co., Ltd. (MHNV®) delivers enterprise-grade dual-tube night vision with precision-matched Gen 2+/Gen 3 white phosphor image intensifier tubes. This professional-grade system has gold-level tube pairing (SNR variance <2, gain difference <10%), 0.1° optical collimation tolerance, and manual gain control for operator-adjusted brightness optimisation. This binocular offers a Figure of Merit (FOM) of 1600-2200+ with independent pod flip-up function, and a lightweight polymer-carbon hybrid body weighing less than 500g, which solves the main operational problems of image uniformity, zero-fatigue alignment and 40-100 hours of extended field endurance. ISO 9001, CE, RoHS, FCC Certification.

Superior Tube Matching and Optical Precision

All MHNV® products utilise gold-grade matching processes. Each pair of image intensifier tubes is subjected to rigorous SNR and gain variance screening to verify that the two channels will have the same brightness and contrast levels. Signal-to-Noise Ratio (SNR): 22+ Crisp, grain-free images Resolution: better than 60 lp/mm.

The optical collimation technique maintains alignment tolerances below 0.1°, minimising double vision and lowering operator eye strain during 8+ hour continuous observation sessions. It is all precision engineering . This eliminates brain fatigue and keeps the accuracy of depth perception intact in challenging circumstances .

Technical Specifications

Manual Gain Control for Enhanced Adaptability

The P45 Night Vision Binocular Manual Gain PVS 31 incorporates manual gain adjustment, allowing operators to fine-tune image brightness based on ambient light levels. This function prevents white-out in bright city conditions and lowers graininess in very low light situations.

Manual control is also useful for contrast detection when moving from well lit parts to darkened areas. The signal-to-noise ratio is completely under the control of the ops and they are not dependent on automatic gain circuits which may be slow to respond in rapidly changing environments.

Lightweight Construction and Ergonomic Design

The system is built from high-strength polymer-carbon hybrid materials, and weighs less than 500g in total without the battery. The articulating bridge design moves the center of gravity 15% closer to the helmet forehead mounting point, changing the perceived weight distribution and dramatically lowering neck strain.

Independent pod flip-up mechanism allows single eye operation when depth perception is not required. The flexible range of the interpupillary distance (50-72 mm) allows for different facial structures and the diopter adjustment from -4DS to +4DS allow clear focus for operators with different visual needs.

Extended Field Endurance and Environmental Protection

Battery life is 40 to 100 hours depending on the mode of operation and the use of the IR illuminator. The system is powered by a single CR123 battery or by plugging into an external CR123×4 battery box with a standard interface for longer duration missions.

An IP65/IP67 environmental grade protects internal components from dust intrusion and water immersion. The housing can endure temperatures from -40℃ to +55℃ and humidity levels up to 95%, delivering dependable performance in harsh climates and maritime search-and-rescue circumstances.

White Phosphor Technology and Superior Contrast

P45 white phosphor is used in black and white image intensifier tubes providing a more natural image to the human eye than the usual green phosphor. The technology promotes contrast detection, minimises eye strain during lengthy observation times and improves recognition of targets against complicated backgrounds such as dark lake surfaces or dense foliage.

The 40° field of view is the perfect mix of situational awareness and target detail, while the 25 mm F/1.2 lens system optimises light transmission for best low-light performance.

MHNV® Manufacturing and Customization Advantages

MHNV® is a full-stack manufacturer with more than 12 years of industry experience. We manage every stage of the production process from optical design to final assembly. The company has Class-10,000 cleanrooms for IIT calibration, precision optical assembly stations and professional metrology labs.

All units undergo stringent quality verification including SNR testing, FOM measurement, resolution analysis, halo monitoring and environmental reliability testing. Each device is supplied with a serialised QC data sheet certifying performance parameters.

OEM Customisation: MHNV® is capable of OEM customisation such as logo printing, custom tube choice (Gen 2+ or Gen 3), housing colour change, and firmware change. Production lead times are 3-7 working days for stock goods and 15-30 days for bulk customised orders.

FAQ

Q: Why manual gain as opposed to automatic gain control?

A: The manual gain control allows the operator direct control of the brightness of the image. The operator may precisely reduce graininess in extremely low-light settings, while avoiding over-saturation and haloing when artificial light sources are present. The system is quickly calibrated to obtain the best signal to noise ratio in a variety of situations, providing a better image quality than automatic systems that may lag behind in fast light variations. Operators have improved contrast detection and visual acuity for long periods of observation without the flicker or brightness variations associated with auto-gain circuits.

Q: Is this product compatible with external battery packs?

A: Yes. The system has a standard interface that allows for external battery configurations such as CR123×4 battery boxes and can run for over 50 hours. Ruggedised contacts provide external power supply connections optimised for field reliability, enabling operators to switch power sources without stopping surveillance missions. This modular power architecture facilitates lengthy recon, surveillance and search-and-rescue missions where the options for battery replacement are limited.

Q: What is the benefit of P45 white phosphor technology?

A: P45 white phosphor gives a black and white image spectrum very close to the human visual response, greatly decreasing eye fatigue on 8+ hour missions vs typical green phosphor tubes. White phosphor promotes contrast detection against complicated backdrops, improves depth perception accuracy, and allows for faster target identification in varied illumination settings. Operators also benefit from better transitions between aided and unaided vision and less danger of temporary nite blindness.

Q: Are the pods adjustable for different interpupillary distances?

A: The binocular has its own independent interpupillary adjustment from 50 mm to 72 mm for different face structures and to correctly align the optics to each user. Each pod incorporates precise adjustment mechanisms with tactile stops for positive positioning without loss of collimation during extended field use. The articulating bridge design maintains the 0.1° optical tolerance over the whole adjustment range for the interpupillary distance, preventing image distortion or double vision.

Q: What maintenance does the manual gain system require?

A: Routine maintenance involves cleaning gold-plated contact pins with isopropyl alcohol and inspecting the gain adjustment knob for debris accumulation that may impede smooth electronic transitions. You can check the housing seals to make sure they remain water-resistant, and you can prevent corrosion by cleaning the battery contacts from time to time. With adequate care in the field, the rugged construction of the MHNV® often preserves the unit well within operational specs for better than 24 months, however expert recalibration every 24 months is recommended to verify collimation accuracy and tube performance.

Contact MHNV® for Professional Night Vision Solutions

Contact our technical team at sarah@mh-elec.com for detailed P45 Night Vision Binocular Manual Gain PVS 31 specifications, customization options, and fast global delivery.