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SWIR Imaging

Photonics Spectra
Sep 2010
Navitar Inc.Request Info
 
Enhanced 25- and 50-mm hyperspectral lenses optimized for peak short-wavelength infrared (SWIR) camera performance have been unveiled by Navitar Inc. The OptiStar lenses have a rugged design and produce high-quality images, good transmission and high performance from the visible spectrum into the short-wavelength infrared region. They operate from 500 to 1700 nm, with 90% ±5% transmission across the range. The C-mount lenses have a lower f number than the company’s standard SWIR lenses, and their enhanced design produces better images in dark or nighttime environments. Both lenses are available with manual or auto iris, and they have a focusing range from 1 m to infinity. Applications include perimeter surveillance, tollway monitoring, border and port security, quality control and aerial imaging.


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GLOSSARY
C-mount
A standard lens interface initially made for 16mm movie cameras and now used primarily on closed-circuit television cameras. It is a 1-in.-diameter, 32-thread-per-inch interface with a flange-to-image plane distance of 0.69 in.
camera
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
lens
A transparent optical component consisting of one or more pieces of optical glass with surfaces so curved (usually spherical) that they serve to converge or diverge the transmitted rays from an object, thus forming a real or virtual image of that object.
visible spectrum
That region of the electromagnetic spectrum to which the retina is sensitive and by which the eye sees. It extends from about 400 to 750 nm in wavelength.
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