TELECENTRIC LENSES USED MACHINE

Brand	Owner	Address	Description
MAGNISTAR	NAVITAR, INC.	200 Commerce Drive Rochester NY 14623	Telecentric lenses used for machine vision applications for the purpose of gauging and measuring component parts;MAGNI STAR;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The present invention is directed to provide a telecentric zoom lens capable of attaining a small numerical aperture, a wide angle of view, reduced distortion, high resolution, reduced chromatic aberration, small aperture, and yet avoiding a cost increase and also to provide the telecentric zoom lens that shows a unified imaging ability relative to a varied distance to the screen and has a minimum projection distance to the screen got shorter. The telecentric zoom lens is comprised of a first group of lenses negative in power, a second group of lenses positive in power, and a third group of lenses positive in power, and a focal length fw at a wide angle of view can be given in relation with focal lengths f1, f2 and f3 of the first, second and third groups of lenses respectively, as follows: