Infrared Night Vision Device Infrared Night Vision Monocular
Yuanjin brand YJ-PVS7 is a compact and lightweight binocular night vision device, flexible use, can be connected to the head, helmet use, can also be used by hand. The magnification is 1 times, which provides users with a wide observation angle and space, and can judge the actual distance of the target faster. The product has a wide range of applications and can be used for night field observation, night fishing, forest fire prevention, home security, night walking and driving, etc. It is an ideal device for outdoor night vision.
Outstanding advantages
The super second-generation YJ-2 high-performance super second-generation low-light image intensifier is adopted, and the picture is clear. Yuanjin YJ-2 super second-generation low-light tube, the resolution is between 48-64, the signal-to-noise ratio is above 20, the optical sensitivity is above 650, and the quality factor (FOM) is between 1000 and 1600. It can use P45 black and white tube and P22 green tube.
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YJ-PVS7 Technical parameters
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Item
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Index
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Specification
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Model
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YJ-2 Super Generation Low Light Image Intensifier
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Magnification, x
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1
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Field of view, deg
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40°
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Len system
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26.8mm/1.2
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Adjusted interpupillary distance, mm
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Yes
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Focus range, m/in
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0.25/10"to infinity
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Eye relief distance, mm
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15
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Power supply
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Two 1.5VAA batteries. Rated voltage 3.7V, maximum 4.2V, minimum 3V
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Diopter setting, D
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+4, -4
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Dimension, mm
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160x150x75
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Weight(with 2 batteries), g
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550
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Estimated battery life w/out IR, 73 °F, hour
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Up to 80
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GEN 2+ Image Intensifier Tubes
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Photocathode type
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18mm S-25
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Photocathode sensitivity, typical, uA/lm
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≥550
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Resolution, typical, Ip/mm
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57-64
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Luminous gain, typical, fl/fcd
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16000-25000
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Signal-to-noise ratio, typical
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at least 20
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FOM, typical
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1000-1600
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Tube reliability standard, hour
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10000
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Keeep time, typical, year
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10
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Effective Distance
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Detection range, m
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220-280
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Recognition range, m
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175-230
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Environmental
Data
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Operating temperature，℃
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-40℃ to +50℃
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Storage temperature，℃
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-30℃ to +50℃
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Immersion, hour
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2 meter for 1.0(optional)
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Humidity, %
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up to 98%
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Technical parameters of Yuanjin YJ-2 super second-generation low-light image intensifier
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GENERAL DATA
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Minimun
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Maxmun
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Unit
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Useful input diameter
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17.5
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Cathode sensitivity
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at 2850K
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650μA/lm
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899μA/lm
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750μA/lm
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at 800nm
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50mA/W
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At 850nm
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40mA/W
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Luminanac Gain
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8000cd/㎡/1x-12000cd/㎡/1x
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Max.Output Bringhtness
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4cd/㎡-8cd/㎡
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Equiv.Background Iumination
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≤0.251x
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Resolution
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Center
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51 lp/mm
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64 lp/mm
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60 lp/mm
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Preipheral
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51 lp/mm
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64 lp/mm
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60 lp/mm
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M.T.F
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At2.51p/mm
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86
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At7.51p/mm
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65
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At151p/mm
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42
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At251p/mm
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22
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At301p/mm
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15
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Signal To Noies Ratio
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20
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27
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22
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Uniformity Lin
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≤25mA
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Φ5.6mm
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Φ5.6mm_Φ14.7mm
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Φ14.7mm_Φ17.8mm
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>300μm
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0
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0
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1
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230μm-300μm
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0
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1
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1
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150μm-230μm
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0
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2
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2
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75μm-150μm
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1
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3
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3
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