J8 Camera System

J8 Camera System

The J-8  is designed as a LRU (Line Replaceable Unit) system meaning the basic pan and tilt chassis can accommodate any number of electro-optic and/or thermal imaging camera systems to meet the needs of the customer. The J8 sensor package contains an integrated Electro-Optical (EO) camera for visible spectrum target detection and identification functions and a Long Wave Infrared (LWIR) microbolometer for night target detection and identification operations. This day/night operations capability is integrated into a ruggedized pan-tilt platform that is weather-sealed to satisfy all marine environmental qualifications (i.e. IP-67 and NEMA 4X) and meets the required MIL STD’s. The J8 sensor is integrated into a no-maintenance pan-tilt chassis that is RFI-shielded and dry nitrogen charged to prevent fogging and moisture formation. The optics are recessed within the chassis to minimize water droplets and heated to prevent ice formation and enable operating within temperature extremes. The chassis is mounted on a continuous 360° pan base with a tilt range of motion between +90° elevation and -90° depression. The J-8 is an integrated, high performance EO/IR sensor whose primary function is to provide target detection, identification and tracking data. It was designed to perform these critical functions during any of the three shipboard operational conditions defined as: dockside, at anchorage and while underway.

Physical

Housing Construction:   Anodized 6061-T6 Aluminum
Envrionmental:   IP67
Operating Temperature:   -40° to 50o C
Power Consumption:   4.5A @ 12VDC
Communication:   RS-485 Full Duplex
Video:   NTSC

Pan/Tilt Assembly

Pan Speed:   .1 to 60 degrees/sec
Tilt Speed:   .1 to 60 degrees/sec
Pan Range:   360° continuous
Tilt Range:   +90° to -90°
Backlash:   0
Lost Motion:   1 arc min

Camera Head Assembly

EO Day/Night Camera:   1/2” color CCD, 8mm-120mm zoom lens
IR Camera:   Uncooled, 320 x 240 microbolometer, 150 FOV lens, 25 µm pixel pitch sensor available

EO (day/night) Camera Specifications

CCD type:   1/2" interline, color
Actual Pixels:   768 (H) x 492 (V)
Video Output:   NTSC
Min. Illumination:   0.18 lux / 0.024 lux (monochrome mode)
Min. Resolution:   480 TVL
SNR:   > 50 dB
Y/C output:   Y: 1 Vp-p / C: 0.3 Vp-p
Synchronization:   Internal, Line lock
Shutter:   Auto (1/50- 1/500000)
Scanning System:   2:1 Interface
Noise Reduction:   Auto, Off selectable
Contour:   Sharpness enhancement level selectable
BLC:   Off, area and level selectable
Gain:   Auto (max level selectable to 28 dB) or fixed gain selectable
White Balance:   ATW (2500-10000K)
Power Consumption:   12VDC, 4W

EO Camera Lens Specifications

Focal Length:   8-120mm
Zoom:   15x
Iris range:   F1.6-1000
Min object distance:   1.5M
Iris response speed:   Approx. 1.5 sec
Motorized zoom speed:   6 sec.
Motorized focus speed:   6 sec
Angle of View:   43.5° - 3.1° (H), 32.9° - 2.3° (V)
Power Consumption:   12VDC, 160mA

Thermal Camera Specifications

System Parameters:   LWIR Sensor
Pixel Size:   25 µm
Resolution:   320 x 240 pixels
Spectral Response:   8-12µm
Horizontal FOV:   3.1"
Vertical FOV:   2.3"
Pixel Size (inches) @ 500 yards:   3.12
IFOV MRAD:   .17
F-Number:   1.0
Focal Length:   150mm
NETD:   <50 mK
Frame Rate:   30 hz
Thermal Time Constant:   <30 msec
Gain / Level Controls:   Automatic or manual
Start-up Time to Clear Image:   8 sec
Video Output:   RS-170 or CCIR

 

NOTE: The Sensor Configurations can be designed to fit your required specification.

 

 

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