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| Place of Origin | Sichaung,China |
| Brand Name | Hollyview |
| Certification | CE ROHS |
| Model Number | TBHM-31N |
product description:
A high-performance head mounted night vision binocular. It is very suitable for outdoor fans at night. Low light version it has the characteristics of super large field of view, high definition, no distortion, light weight, high strength , which is the ideal choice for night equipment.
| Model | TBHM-31N |
| Structural mode | Arbitrary turn it over |
| rollover detection | Automatically detect and power off when turning |
| Battery type | Lithium battery (crl23xl) / cr23x4 external battery |
| Power supply | 2.6-4.2V |
| Installation | Head mounted (standard American helmet |
| control mode | ON/IR/AUTO |
| Over power consumption | <0.1W |
| Battery capacity | 800-3200maH |
| Battery life | 40-100H |
| IIT | Euro Gen3 |
| magnification | lx |
| Resolution | 60-72lp/mm |
| FOV ( °) | 50 +/-2 |
| Parallelism of optical axis | <0.1° |
| Lens system | F1.18 22.5mm |
| MTF | 120LP/mm |
| Optical distortion | 3% Max |
| Relative Illumination | >75% |
| coating | Multilayer broadband coating |
| Range of focus | 250mm-°° |
| Focus mode | manual focus facility |
| Distance of pupil | 30 |
| Eyepiece aperture | 8mm |
| Range of visibility | 0 (+ / - 5 optional) |
| Eye spacing adjustment | Arbitrary continuous adjustable |
| Eye distance adjustment range | 50-80mm |
| Eye distance locking method | Manual locking |
| IR | 850nm 20mW |
| Operating temperature | -40-+55°C |
| Relative humidity | 5%・95% |
| Environment rating | IP65/IP67 (optional) |
| dimensions | 115x105x85 |
| weight | 560G(no battery) |
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