Ofil's SBI-2 solar blind UV imager incorporates a UV sensitive ICCD camera, a special Catadioptric UV lens and an all absorption type solar blind filter to achieve an imaging system that is absolutely solar blind.
The SBI-2 optics and detector are similar to those in the UV channel of the DayCor®II camera.
Like the DayCor®II, the SBI-2 shows no response to solar radiation even when looking directly to the sun at noontime during the summer. The high sensitivity to UV in the Solar Blind range (250-280 nm) makes the SBI-2 a useful tool for detection of the weakest UV signals.

The SBI-2 imager is useful for imaging various UV sources in full daylight. Typical  applications are: fire detection, including invisible hydrogen and alcohol flames, monitoring of HV equipment for corona discharges, missile plume detection, detection of small arms muzzle flashes, detection of leakages of UV radiation from lamps and UV sterilizations devices etc….
Ofil's SBUV imagers are:

  Truly solar blind - zero response when looking directly at the     sun.
  Single photon sensitivity.
  Standard video output.

TYPICAL SPECIFICATIONS:
Sensor:
Solar Blindness	Dark current equivalent response, when looking directly to the sun
Sunlight Rejection	Target can be inspected with the sun in the field of view.
UV Sensitivity	3x10^(-18) watt/cm^2
Photo Cathode Quantum Efficiency	@260 nm...> 25%
Optics:
Lens Type	Catadioptric Lens for compact 5º optic
Field of View H x V	5º x 3.75º
Focal Length	165 mm
F Number	2.69
Optics Transmission	>80%
Focus Distance	3 meters to infinity; with set of closeup lenses: 0.5-3m (optional)
UV light collection area	19 cm^2 for maximum sensitivity
Filter:
Maximum Transmission	260nm, 15nm FWHM
Solar Blind Filter Transmission	>12%
Operation:
UV Gain	Continuously variable, to enhance detectivity
Video Output	Composite PAL or NTSC signal via a BNC socket
Power	12V DC regulated
Maximum Storage and Working Temperature	55°C