Basic Info.
Model NO.
JH640-280
Electronic Zoom
X 2 / X 4
Communication
RS232 / RS422
Fov (H)X(V)
1.97°X 1.58°~ 36.5°X 29.2°
Transport Package
Standard Transportation Box
Specification
218mm x 98mm x 89mm
Trademark
JOHO
Origin
Wuhan
Production Capacity
100
Product Description
3.7μm ~ 4.8μm Cooled Thermal Imager For Search and Rescue
280mm long focal length medium wave cooled thermal camera is mainly used for remote observation. This mini-size thermal camera adopting high sensitivity medium wave cooled module and 640x512 module resolution is able to guarantee the clearer image; 15mm~280mm continuous zooming optical lens can recognize different target, such as person, vehicle or vessel effectively in a long distance.
Features
1. 15mm-280mm continuous zoom optic system can meet long-range, multi-task search and observation
2. Miniature size and light weight
3. High sensitivity and high resolution
4. Standard interface , easy to integrate
5. Entire enclosure shell protection and compact design.
Application
1. Air-borne Air-to-ground Observation and Monitoring
2. EO/IR System Integration
3. Search and Rescue
4. Airport, bus station and port security monitoring
5. Forest Fire Warning
Technical Specification
| DETECTOR | |
| Detector Type | MCT |
| 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 |
| RANGE PERFORMANCE | |
| Recognize Range | 8km ( 2.3m x 2.3m vehicle ) 4.5km ( 1.7m person ) |
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.
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