Opto Engineering® - 20 years
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Are the lenses used in the LTCLHP series the same as those in matching telecentric lenses? For example, do a LTCLHP120 feature the same lenses installed in a TC12120?

No, there are differences between telecentric lenses and illuminators, since they are also intended to perform differently: telecentric lenses accept "telecentric cones", while telecentric illuminators (also known as collimated illuminators) basically project a parallel beam of rays.