Product category:
Vision and Colour Sensors
News Release from: Firstsight Vision | Subject: Firstsight Day/Night lenses
Edited by the Engineeringtalk Editorial
Team on 07 January 2008
Cameras produce clear images, day or
night
Firstsight's day/night range features 14 monofocal manual and DC iris lenses and varifocal lenses with focal lengths from 2.5 to 80mm.
Firstsight Vision offers a range of day/night lenses designed to produce sharp CCTV images whatever the prevailing light conditions These lenses are able to focus both visible and infra-red light, thus compensating for the difference in wavelengths from daylight, moonlight, halogen car headlights and sodium street lighting, which could result in blurred images
This article was originally published on Engineeringtalk on 1 Mar 2001 at 8.00am (UK)
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A nonday/night lens set up for one particular type of lighting results in blurred images when other types of lighting dominate.
Firstsight's Day/Night range features 14 monofocal manual and DC iris lenses and varifocal lenses with focal lengths from 2.5 to 80mm.
This includes a 1/2in format C-mount DC iris varifocal lens used extensively in traffic and ANPR situations.
Day/Night lenses have been used to great effect in areas where light pollution can be a problem.
For example it is inappropriate to flood car parks with visible light at night, but using infra-red light and a day/night zoom the scene can be monitored without affecting its ambience.
Firstsight Vision can also offer Day/Night zoom lenses with a focal range from 7.5 - 1500mm with functions including presets, iris override, motorised back focus and 2X range extenders. Request a free brochure from Firstsight Vision ...
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