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ANPR Filters

Automatic number plate recognition (ANPR) cameras and intelligent transportation systems (ITS) have become an essential requirement of law enforcement and road safety.


ANPR cameras need to operate during all weather and lighting conditions. The systems require reliable components, which can withstand harsh environmental conditions, to allow vehicle information to be tracked and transmitted from remote locations. Knight Optical was asked to provide a durable and reliable solution to meet the demands of this industry.


Knight Optical’s range of carefully designed near infrared (NIR) bandpass filters, for use in ANPR camera applications, offer precise and reliable transmission rates at key wavelength ranges. These filters have a hard dielectric coating deposited on a single glass substrate, eliminating the possibility of moisture ingress. This, combined with custom made borosilicate windows, creates a durable and all-encompassing solution.


Implementation of Knight Optical’s ANPR filters and windows allows reliable operation of these crucial systems, even under the most adverse weather conditions.


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Our 2020/21 Catalogue

Inside Knight Optical’s catalogue you’ll find details of the industries we serve as well as the many other services we can offer. It also showcases hundreds of our most popular products, supported by useful technical information, to help you choose the right part for your application.
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