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Telecentric Measuring Lenses

Photonics.com
Aug 2006
Edmund Optics Inc.Request Info
 
BARRINGTON, N.J., Aug. 3, 2006 -- Optics and imaging components maker Edmund Optics presents a new line of TML-HP (high power) telecentric measuring lenses. Telecentric lenses correct perspective errors that yield variations in magnification through the depth of field, making these lenses ideal for both online and offline production environments that require accurate measurements, the company said. Edmund said it designed this series of lenses to specifically replace lenses that give inaccurate or inconsistent readings.

Edmund-OpticsHP_TML.jpgTML-HP lenses offer a compact, cost-effective solution for replacing standard lenses with fixed focal lengths. These lenses build on Edmund Optics' established TML telecentric series, offering additional features including smaller fields of view, a high numerical aperture and higher magnifications of 1X, 2X, and 4X. The 2X and 4X models also feature a double-telecentric design, giving the sharpest image while minimizing errors for the most accurate measurements, the company said.

The simplified non-focusing mechanical design offers adjustable iris control. A standard C-mount camera interface is optimized for adaptability on .5 in. camera sensors. A front filter thread is offered for the addition of filters, polarizers or various types of illumination.

For more information, visit: www.edmundoptics.com; e-mail: sales@edmundoptics.com

Edmund Optics Inc.
101 East Gloucester Pike
Barrington, NJ 08007
Phone: (856) 573-6250
Fax: (856) 573-6295



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GLOSSARY
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...
iris
The adjustable membrane located just in front of the crystalline lens within the eye. The iris gives the eye its color. See also iris diaphragm.
magnification
The ratio of the size of the image of an object to that of the object. The ratio of the linear size of the image to that of the object is lateral magnification. Angular magnification is the ratio of the apparent angular size of the image observed through an optical device to that of the object viewed by the unaided eye. Longitudinal magnification is the ratio of the longitudinal or axial dimension of an image to the corresponding dimension of the object.
sensor
1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
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