The 12X Telecentric Zoom system allows users to reach a true
telecentric condition to within less than 0.3° while maintaining constant
perspective and magnification. This means that even if the object is slightly
out of focus, the size of the image will not change. The 12X Telecentric
Zoom provides field coverage from 50 mm down to 4 mm and the coaxial illumination
allows clear viewing, even when working with mirror-like surfaces. Also
available without coaxial illumination.
Wide Magnification Range and Ultra Long Working Distance
In the past, a telecentric lens was defined as having fixed magnification.
Not anymore! The Navitar 12X Telecentric Zoom lens allows you to zoom
in and focus over a wide variety of magnifications with a higher level
of accuracy than you ever thought possible. The 12X Telecentric provides
adjustable focal lengths over a 0.16X to 1.94X magnification range. You
no longer have to be limited by telecentric lenses that only offer fixed
magnification. Now you have field coverage from 50 mm down to 4 mm at
a 188 mm working distance.
No Need to Change Lenses
The easily adjustable field of view and magnification allow our Navitar
12X Telecentric lens to adjust to meet your exact requirements. It’s no
longer necessary to change lenses, mix and match base lenses with attachment
lenses or recalibrate. One lens, the 12X Telecentric, really does it all!
Straight, as well as right angle, versions allow OEM designers to best
fit the systems to their mechanical design.
Wide Range of Applications
Specifically designed for precise dimensional measurement of objects
or pattern recognition, the 12X Telecentric Zoom has many applications.
It’s ideal for measuring three-dimensional objects with deep features,
such as precision parts and electrical connector pins and contacts. It’s
also the perfect lens for viewing inconsistently placed parts on a conveyer
belt. |
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Telecentric Advantages Over Conventional
Lenses
 Constant
Perspective for the Highest Degree of Accuracy
Navitar’s 12X Telecentric lens is designed for "straight on"
viewing of objects across the entire field of view. Images are not
distorted and features are easy to examine. Conventional lenses view
objects at different angles across the field of view. This changes
the viewing perspective and can distort the size and shape of the
object, making it difficult to view features accurately. Constant
Magnification Reduces Magnification Errors. Magnification in the Navitar
12X Telecentric, unlike conventional lenses, is independent of working
distance. Magnification remains constant regardless of how close or
far away an object is from the camera. This reduces magnifications
errors and greatly extends gauging depths of field. Conventional lenses,
however, view objects that are closer to the camera as larger than
objects that are farther away. |
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