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TELEPHOTO LENS

Photonics Spectra
Oct 2007
Sunex Inc.Request Info
 
Sunex_DSL208.gifA miniature day/night telephoto lens with megapixel resolution for CMOS and CCD cameras has been released by Sunex Inc. The DSL208 has a lens-limited field of view of 22° on a 1/3-in. sensor and 17° on a 1/4-in. one. Features include a 15.8-mm focal length, a focal ratio of f/2, distortion of <2% and relative illumination of >90%. Total track length is 21.3 mm, and the lens barrel thread is M12 × 0.5. The spectral range of the all-glass lens is corrected for 400 to 1000 nm. An IR coating option is available for color cameras. Applications include automotive, security and surveillance.


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GLOSSARY
telephoto lens
A compound lens so constructed that its overall length is equal to or less than its effective focal length.  
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