Telec
en
tr
ic L
enses
90
http://machinevision.navitar.com
• email: info@navitar.com
Telecentric Lenses
Navitar Telecentric Lenses
Navitar off ers a family of high-performance telecentric lenses for use in
machine vision, metrology and precision gauging applications. All provide low
optical distortion and a high degree of telecentricity for maximum, accurate im-
age reproduction, particularly when viewing three-dimensional objects.
Benefi ts of Telecentric Lenses
One of the most important benefi ts of a telecentric lens is that image magnifi ca-
tion does not change as object distance varies. A telecentric lens views and
displays the entire object from the same prospective angle, therefore, three-di-
mensional features will not exhibit the perspective distortion and image position
errors present when using a standard lens. Objects inside deep holes are visible
throughout the fi eld, undistorted, therefore, telecentric lenses are extremely
useful for inspecting three-dimensional objects or scenes where image size and
shape accuracy are critical.
Choose the Best Lens Option for Your Needs
Our machine vision telecentric lenses include the 12X
Telecentric Zoom system, the TC-5028 and TEC-M55
telecentric video lens. Our single-sided lenses, the In-
varigon-R™, Macro Invaritar™, ELWD Macro Invaritar™
and Invaritar Large Field telecentric lenses are avail-
able with several diff erent accessories that enhance
the performance of the lenses. They include telecon-
verters, right angle attachments, fi ber bundle collima-
tors and lens mounting brackets. Our Double-Sided
series of lenses are telecentric in both the object and
image space and have optional illumination accesso-
ries to provide a bright, even illumination that will
compliment the performance of the lenses.
