Night Vision Binocular Goggle EFS-31D

Product Description:

EFS-31N & 31D is a high-performance military head mounted night vision binocular built by Optoelectronics with reference to pvs-31, an active head mounted night vision binocular in the United States. It is divided into two models: low light version EFS-31N and digital EFS-31D.

The digital EFs-31d has the characteristics of strong adaptability to superlow Light Level environment, high imaging quality, multi-function, dual-use day and night, electronic zoom, clear imaging, high cost performance and so on. It is very suitable for general military fans and outdoor fans at night.

Low light version EFs-31n has the characteristics of super large field of view, high definition, no distortion, light weight, high strength (the overall performance is much better than the original version of the U.S. military products), which is the ideal choice for military night equiEFent.

Standard set

Technical specifications:

Model	EFS-31D
Structural mode	Arbitrary turn it over
rollover detection	Automatically detect and power off when turning up
Battery type	Lithium battery (cr123x1) / cr23x4 external battery box
Power supply	2.6-4.2V
Installation	Head mounted(standard American helmet interface)
control mode	ON/IR/AUTO
Over power consumption	<1.2Wx2
Battery capacity	800-3200maH
Battery life	0.5-3H
magnification	1x
FOV（ °）	25+/-2
Parallelism of optical axis	<0.1 °
IIT	Superlow Light Level CMOS
Lens system	F1.6 7.8mm
MTF	160LP/mm
Optical distortion	0.5%Max
Relative Illumination	>80%
coating	Multilayer broadband coating
Range of focus	250mm-∞
Focus mode	manual focus facility
Distance of pupil	30
Eyepiece aperture	6mm
Range of visibility	0 (+ / - 5 optional)
Eye spacing adjustment	Arbitrary continuous adjustable
Eye distance adjustment range	50-80mm
Eye distance locking method	Manual locking
Frame rate	30-50
Low sensitivity	1x10-4 Lux
Image resolution	1440P
Display resolution	480x480x3 OLED
SD card	1-128GB High speed card (optional later)
Other functions	Video，GPS, WiFi, electronic compass (moderately optional)
IR	850nm 20mW video、GPS、WiFi、Electronic compass (moderately optional)
Operating temperature	-30--+50℃
Relative humidity	5%-95%
Environment rating	IP65/IP67 (optional)
dimensions	115x178x58
weight	430G(no battery)

Helmet Brackets (EF-HC8)

Product description：

Universal helmet assembly EF-HC8 with independent intellectual property have patent protected. The night vision is made from high strength aviation aluminum alloy; the function is all ready, flexible operation, easy to use, durable, etc. Have freedom in all three axis is adjustable; Product 180 degrees, three docking stations, multiple functions such as automatic shutdown check.

Its interfaces and function high strength aviation aluminum alloy as are interchangeable with general bulletproof helmets, especially suitable for special operations forces wearing equiEFent needs.

Technical specifications:

NO.	ITEM	SPECIFICATRIONS	REMARKS
1	Vertical adjustment	+/-10mm	Lock by thread-off proof Knob
2	Horizontal adjustment	+/-25mm	Self lock by thread-off proof knob
3	Radial adjustment	+/-12mm	Lock by thread-off proof Knob
4	Rotate adjustment	3Ports 2x90degrees	Rotate Self lock
5	State detection	Two magnetic detection	Logic code operation
6	Material	Aviation aluminum alloy	High precision CNC machining
7	Dimensions	110x90x70mm	No package
8	Weight	180g	No package

NOTE：

1. This product is refined from high-strength aviation aluminum alloy, the normal working temperature is - 60~+200 degrees Celsius, please do not use in an unsuitable temperature environment, in order to avoid product damage.

2.The regulation function of this product has a certain regulation range. Do not force regulation, so as not to exceed the regulation range and cause damage to the product.

3.. The mechanical strength of this product can ensure normal operation, but the mechanical strength is limited, do not use improper pulling, bending and extrusion in the operation process to avoid permanent damage to the product.