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ML-L00502 Lens

Photonics.com
Mar 2010
Moritex Corp., International Sales Div.Request Info
 
TOKYO, March 23, 2010 – Moritex Corp. has developed a lens for use in high-definition line-scan cameras. From the center of the image to the edges, the ML-L00502 offers an exact, high-contrast picture display at a screen diagonal of up to 62 mm.

The illumination drop between the center and the periphery of the field of view is <20%, and the distortion of the optic is <0.1%. The diaphragm is adjustable, relative illumination rate is greater than or equal to 80%, and focal ratio is f/2.9. At an optical magnification of 0.05×, the working distance is 1590 mm and, at 0.2×, 420 mm.

Machine vision systems based on line-scan cameras are used for quality inspection and sorting in semiconductor manufacturing, and for quality assurance during production of solar modules, LCDs and printed circuit boards. The lens enables a compact machine vision system.

For more information, visit: www.moritex.com


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GLOSSARY
diaphragm
A flanged or plain ring with a restricted aperture, located in an optical system at any of several points, that cuts off marginal light rays not essential to image formation. Diaphragms are used as field stops, to limit the field of view to that portion which is fully illuminated; aperture stops, to limit the light-gathering power of the instrument; and antiglare diaphragms, to eliminate reflections from the sides of the tube and consequent glare in the field of view. Lens cells or the sides of...
distortion
A general term referring to the situation in which an image is not a true-to-scale reproduction of an object. The term also is used to connote the temporal alteration of the signal's waveform shape. There are many types of distortion. See also anamorphic distortion; curvilinear distortion; keystone distortion; panoramic distortion; perspective distortion; radial distortion; stereoscopic distortion; tangential distortion; wide-angle distortion.
illumination
The general term for the application of light to a subject. It should not be used in place of the specific quantity illuminance.
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.
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