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Home / Media Coverage / Thermal Color Camera System LJ-TI235Thermal Color Camera System LJ-TI235
Thermal imager is a kind of sensor that can detect extremely slight temperature differences and convert such differences into real-time video images.
The images displayed on the monitor are fully appropriate for application of night vision.
Unlike other night vision systems which depend on low light to generate images, the thermal imager needs no visible light at all, making it an ideal companion for observation in absolute darkness.
Features:
OSD, Zones Masking,day/night,WDR Sensup DSS(refer to below camera table)
Boasts the worlds most advanced third generation un-cooled VOx infrared focal plane array (FPA) with 320 x 240 pixels.
Affords outstanding image quality and thermal sensitivity that can detect temperature difference less than or equal to 85 mK (or <35 mK at f/1)
With a detection range over 500m-5Km , the device is able to generate well-defined images in full darkness, haze and smog;
The infrared thermal imager and the camera perform around-the-clock monitoring through video switch. The built-in heater ensures the display can show perfect monitoring images even in chilly and extremely harsh environments;
Robust protection for their critical parts meets the standard of US military Mii-Sld-810 arid P66. Which is Moisture-resistant and waterproof, the both components work well within the temperature range -32°C to +55° C
Unlimited 360° pan and 180° tiIt range guarantee nonexistence of dead-spots.
28 preset positions and 6 cruising tracks 16 preset each track.
4 alarms in 1 out (subject to 24VAC power)
Power input for general monitoring purposes: AC 24V
Mount Suitable for vehicle carriage
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Thermal imager Table
Specification
| Specifications Model | LJ-TI250 | LJ-TI235 | LJ-TI225 | LJ-TI219 | LJ-TI619 |
| Sensor Type | Un-cooled LWIR Thermal Imager, VO x Microbolometer New thermal imaging system using the Third generation un-cooled VOx infrared focal plane array. | ||||
| Sensor Format | 320 x 240 | 160 x 120 | |||
| Spectral Band | 7.5 ~ 13.5 micro M | ||||
| Field of View | 14° x 11°, 50 mm lens | 20° x 15°, 35 mm lens | 28° x 21°, 25 mm lens | 36° x 27°, l9 mm lens | 18° x 14°, l9 mm lens |
| lFoV 2 (milliradians) | 0.760 mrad (50 mm lens) | 1.086 mrad (35 mm lens) | 1.520 mrad (25 mm lens) | 2 mrad (l9 mm lens) | |
| Range performance Object 2.3 m x 2.3 m | Detection approx. 2.2 km | Detection approx. 1.6 km | Detection approx. 1.1 km | Detection approx. 880 m | |
| Range performance man 1.8 x 0.5 m | Detection approx. 780 m | Detection approx. 560 m | Detection approx. 430 m | Detection approx. 310 m | |
| NEdT Performance | <85 mK at F/1.6; | ||||
| Analog Video | 8.3 Hz (PAL) | ||||
| Focus | Factory-set at infinity focus; lens thread mount allows focus adjustment. | ||||
| Electronic zoom | 2 x | ||||
| Image processing | Digital Detail Enhancement (DDE) | ||||
Asistant Camera Specification
Specification
| Model | Sony FCB-EX1010P | Sony FCB-EX480P | Sony FCB-EX980P | LG LM-927DS | SANYO VCC-MD600P |
| Image sensor | 1/4'CCD | ||||
| Active pixels | 440,000 | 752H*582V | 758H*592V | 795H*596V | 795H*596V |
| Synchronization | Internal / External | ||||
| Video output | VBS1.0vP-P/75 OHMS | ||||
| Scan frequency | 15.625KHz/(H) 50Hz (V) | ||||
| Horizontal resolution | 480TV lines | 480TV lines | 480TV lines | 480TV lines | 480TV lines |
| S/N ratio | 50dB | 50dB | 50dB | 50dB | 50dB |
| Elec. shutter | 1/4-1/10,000s | 1/3-1/10,000s | 1/3-1/10,000s | 1/1-1/10,000s | 1/1-1/10,000s |
| Min. illumination | WDR 0lux | 0lux | 0lux | 0lux | 0lux |
| Focal length | f=3.4-122.4mm 432X | f=4.1-73.8mm 216X | f=3.5-91mm 312X | f=3.6-98mm 324X | f=3.3-99mm 300X |
| Focal & iris | Auto/Manual | ||||
| Pan speed | 0-240 dgs/S | ||||
| Tilt speed | 0-60 dgs/S | ||||
| Pan range | 360 dgs continuously | ||||
| Tilt range | 90 dgs (180 dgs utmost flip) | ||||
| Preset | 128, 6 tracks, 45 Seconds Pattern Memory | ||||
| Work temperature | -35°C ~ +55°C | ||||
| Autopan speed | 0.5° ~ 30°/s | ||||
| Intelligent startup time | 40 s | ||||
| Alarm Input | 4 | ||||
| Alarm Output | 1 | ||||
| Power supply | 50 VA | ||||
| Power | 24VAC, 1.5A, adapter provided | ||||
| P. consumption | 35W | ||||
| Weight | 10 Kg, 22 Pounds | ||||
| Communication | RS485, multi-protocol supported | ||||
| Relative humidity | 10-75% without stem | ||||
| lP grade | 1P66 | ||||
Application of thermal imaging in security and surveillance
Object surveillance at night and in harsh climates
Equipment that needs visible light to work will not work at night. Using artificial light will expose your position, putting you in danger. Works well day and night, without exposing you to detection. Typical night-vision devices need external lighting. This infrared thermal imager receives invisible light directly from the subject itself, passively. In atrocious weather of heavy rain and fog, visible lights are not good at surpassing obstacles due to their short wavelength, affecting the performance of observation. By contrast, infrared light has long wavelength. Particularly, the thermal imager working at 8~l4 um is powerful in penetrating rain and fog. At night or in atrocious weather conditions, the infrared thermal imager works normally, accomplishing the task of object monitoring.
Fire monitoring
The infrared thermal imager reflects surface temperature of objects and creates images accordingly. The very fact makes it not only applicable to site monitoring at night but also an effective fire alarm device. Fire accidents in vast forests are usually kindled by hidden fires, which can hardly be detected using conventional methods currently practiced. The infrared imager can be introduced to rapidly spot the hidden fires and accurately determine the location and range of fire accidents. Ignition points are located by detecting smoke. The early warning could be essential for early prevention and finally snuffing out.
Identifying disguised and hidden objects
Disguise mainly involves a measure to avoid exposure to Visible light. Criminals intending to commit an offense will hide in shrubs or woods. People are prone to wrong judgment due to adverse wild environments and visual illusion. The infrared thermal imager receives thermal radiation of objects passively. As the temperature and Infrared radiation range of human body and vehicles are far greater than those of shrubs and woods, with this device available, criminals find it much harder to hide themselves and people ~re less likely to make wrong judgment.


