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The common camera is an equipment of visible imaging. Its image-forming principle is based on the difference between reflect and reflectance on the target surface. But the infrared thermal camera is different totally, it utilized the thermal contrast difference between targets and surrounding environmental conditions to forming the thermal radiation energy density images,
we call it as "thermal imaging". As same as light wave and radio wave, the infrared radiation is a kind of electromagnetic
JH640-280 miniature cooled thermal camera utilizes third generation HgCdTe 640x512 MWIR focal plane arrays (FPA) detector. The detector transform the target thermal radiations to electrical signals, after the process of a detailed analysis of electrical signals on image processing circuit boards, detector output analog and digital video signals together; the host PC control the thermal camera via RS422 communication interface.
Features
JH640-280 cooled thermal camera is a matured and high reliable product developed by our company independently. It utilizes high-quality material and top-end manufacture technology. The thermal camera is featured by small size, high sensitivity, easy to control, long surveillance range, all weather operations and easy for integration. It adopts high sensitivity MWIR detector and 640x512 resolution for crispy
image. In addition, continuous zoom lens 15~280mm can distinguish the human, vehicle and ships at long range.
Technical Specification
| DETECTOR | |
| Detector Type | Cooled MCT FPA |
| Pixel | 640x512 |
| Spectral Band | 3.7μm ~ 4.8μm |
| Pitch | 15μm |
| NETD | ≤23mk @ 25ºC |
| Cooling Type | Stirling Cycle Cooling |
| OPTICS | |
| Focal Length | 15mm ~ 280mm continuous zooming, F# :5.5 |
| FOV (H)x(V) | 1.97°x 1.58°~ 36.5°x 29.2° |
| FUNCTION & INTERFACE | |
| Frame Frequency | 30Hz (50Hz customized) |
| Analog Video | PAL |
| Communication Control Interface | RS232 / RS422( alternative) |
| Shutter Calibration | Manual / Automatic |
| Background Calibration | Yes |
| Polarity | BH / WH |
| Electronic Zoom | x 2 / x 4 |
| Cross Cursor Display | On / off |
| Cross Cursor Position | Adjustable |
| Image Gain | Adjustable |
| Image Brightness | Adjustable |
| Image Enhancement | Adjustable |
| Image Reversal | Adjustable |
| Power Supply | DC 24-36V |
| Consumption | ≤10W @ 25ºC |
| ENVIRONMENTAL | |
| Operating Temperature | -32ºC ~ 60ºC |
| Storage Temperature | -40ºC ~ 70ºC |
| Vibration &Shock Proof | GJB150.16-86 /MIL-STD-810F-514.5 |
| High & Low Temperature Test | GJB150.3-86 / MIL-STD-810F-514.5 |
| PHYSICAL | |
| Weight | ≤1.6kg |
| Dimension | ≤218mm x 98mm x 89mm |
| Color | Oxidation Black |
| DETECTION RANGE | |
| Detection Range | 8km ( 2.3m x 2.3m vehicle ) 4.5km ( 1.7m person ) |
Physical map
Company Profile
Wuhan JOHO Technology Co., Ltd founded in 2009, is a high-technology company based on infrared thermal imaging technology. Joho has built a complete infrared industrial chain from the bottom up: from core component to comprehensive electro optical infrared surveillance and tracking system.We have two R & D base in Hubei Zhongxiang and Wuhan City, well-known institutions of higher learning and research institutions at home and abroad.
Customer Distribution
Service Process
Products Our products includes thermal security cameras, electro-optics/infrared search and track system (EO/IR search and track system) and EO surveillance system, surveillance radar, laser range finder, fiber optical gyro, special power sources (thermal battery and silver-zinc battery Ag-zn battery) and OEM solutions,Personalized products and services to provide customers with a significant advantage. Due to the high quality of our products and reliable performance, Joho products are widely used in different applications, security and surveillance, law enforcement, maritime patrol, fishery administration, surveying and mapping and so on.
Advantages
Certificate & Honor
