Transcript New all light level (day/night) vision capability

New L3Vision™ day/night vision capability
Dr. Cliff Weatherup
Programme Manager L3Vision
e2v technologies
http://l3vision.e2v.com
The L3Vision™ digital L3C95
EIA/CCIR 768x576
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The L3C95 is fitted with e2v’s latest EMCCD sensor
Automatic control manages performance at all light levels
Analogue and digital USB2.0 outputs
DSP image enhancement gives outstanding low light performance
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Light Levels
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Light levels are described in terms of scene illumination
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Bright daylight is in the region of 105 –106 lux
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Quarter moon has a scene illumination of 10-2 lux
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Starlight gives a scene illumination of 10-3 lux
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L3C95 performance from daylight to below starlight is
shown in the following video clip
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L3C95 Day/Night video
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Technology Comparison
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The next clip compares the L3C95 with three low light technologies
 The previous generation L3C65 EMCCD camera
 The benchmark Gen3 intensifier (Omni IV) in an ICCD camera
 The benchmark Sony EX view sensor widely used in CCTV
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The L3C95 is significantly better than the previous generation
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The L3C95 is better than the Gen3 Omni IV at all light levels
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The L3C95 and the Sony CCD are equivalent in daylight but the
Sony is unusable below quarter moon
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Daylight Comparison
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Quarter Moon Comparison
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Below Starlight Comparison
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L3C95 Day/Night summary
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CCD quality video in daylight
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AGC gives smooth transition as light level changes
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Noise management enhances overcast starlight
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Digital control gives scenario specific optimisation
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L3Vision™ and flashing overload
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L3Vision™ and intense overload
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L3Vision™ and prolonged
overload
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L3C95 Summary Performance
 Any
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light level, any overload, anytime
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Undamaged by lights, illuminators, flashes or pyrotechnics
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Imaging performance unchanged during life
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Projected lifetime in excess of 30,000 hours
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Urban Surveillance
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Enhanced Vision Systems
Images courtesy of BAE Systems
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Situational Awareness
Image courtesy of Cobham plc
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Conclusion
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The technology is well characterised and understood
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L3Vision™ gives CCD performance in daylight and ICCD
performance at night without using an intensifier
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It is a robust solid state solution for all light levels
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It has the potential to extend operational capability
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It is currently being deployed on operational mobile platforms
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