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ANPR illuminator

ANPR Solutions

Automatic Number Plate Recognition (ANPR) systems are used extensively in policing and law enforcement and are now being used to monitor areas such as car parks, congestion zones and toll booths. Automatic Number Plate Recognition systems must quickly and accurately identify vehicles through the use of optical character recognition (OCR). The ANPR market requires systems that operate in demanding environmental conditions, with variable lighting (day, night, inclement weather) and, when mobile, having the ability to withstand movement and vibration.

LED illuminators are ideal for use in ANPR systems due to their long lifetimes, availability in a range of wavelengths and suitability for strobing.

The choice of wavelength for an ANPR illuminator will depend on a number of factors including the type of licence plate being inspected. IR wavelengths are often preferred for most ANPR systems. Vehicle number plates are often made with retro-reflective materials designed to reflect IR radiation. An added benefit of IR illumination is that it is invisible to the human eye, won't distract drivers and is ideal for covert surveillance. ProPhotonix can provide lighting in a range of IR wavelengths.

Chip-On-Board LED Technology

Compact lighting is advantageous, as it allows for the light to be placed close to the cameras maximizing the light reflected from the number plate. ProPhotonix’ strength in Chip-on-Board technology allows us to produce extremely bright and compact illuminators to suit your requirements.

ANPR illuminators must also be robust, particularly if being used in a mobile system, and long lasting as maintenance once the system has been installed would be costly. ProPhotonix provide illuminators with MTBFs of up to 100,000 hours.

ProPhotonix supplies some of the leading Automatic Number Plate Recognition (ANPR) systems manufacturers with LED illumination. ProPhotonix SpecBright™ Spotlights are used as illuminators for ANPR systems and ProPhotonix also supplies custom solutions to meet specific customer requirements.

For more information contact us.