Narrow bandpass filters

Schneider-Kreuznach has launched a series of narrow bandpass filters designed specifically for laser companies for use in industrial applications. Thanks to a new coating process (magnetron sputtering), higher and consistently even transmission (HT) can be achieved with steep slopes and better blocking outside the transmission range.

The company will also be presenting its new compact C-mount lenses and its latest HT industry filters at Laser World of Photonics show in Munich, Germany. Designed for sensors with a 1/1.8-inch (9mm) image circle diameter, the lightweight xenon-ruby compact C-mount lenses are available in four focal lengths (aperture/focal length in millimetres): 2.2/10, 2.3/16, 2.2/25 and 2.3/35. 

The mechanical design with lockable iris and focus is resistant to vibrations and offers an extremely high and uniform image quality over the entire sensor. The lenses can resolve a pixel size of 2.5μm on the camera and can be used in a wide range of applications, such as traffic control, 2D/3D measurement, surveillance systems and machine vision.