Precise Eye High Mag Fixed Lenses
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http://machinevision.navitar.com
• email: [email protected]
Precise Eye Versus Video Lenses
When selecting a lens for high precision applications, it is
important to differentiate between standard video lenses and
Navitar’s Precise Eye series. Video lenses were originally
designed for very low magnification, surveillance applica-
tions at working distances of greater than three feet (ap-
proximately 1 meter). They were never intended for the high
vibration and high magnification environments of the factory
floor. The usage of extension tubes and close-up diopter
lenses enable a standard Video lens to work close-up, but this
increases distortion and produces loss of resolution.
On the other hand, the Precise Eye series is designed to
provide high resolution, diffraction-limited performance for
Contrast
The lenses in the Precise Eye se-
ries not only resolve finer details,
but provide higher contrast levels
(the difference between light and
dark features) over standard video
optics. A lens that produces an
image with high contrast will
increase the performance of an
image processing system.
Transmission
Precise Eye lenses are supplied
with a high quality, broad band,
high efficiency, anti-reflection
coating that is optically corrected
for the spectral range of 400nm
– 1000nm which allows each
lens to image light from NIR laser
diode and NdYAG lasers.
Working Distance
Precise Eye lenses offer high mag-
nification at long working distances
in order to provide the necessary
space required for equipment,
specimen handling and lighting.
Not Your Standard Video Lens
There are a growing number of
video imaging applications in
which a single, constant mag-
nification and a fixed working
distance are required. Navitar has
responded to this need with our
Precise Eye series of lenses.
Precise Eye lenses are designed to
provide superior optical perfor-
mance and high vibration stabil-
ity over standard C-mount video
lenses. They are optically precise
and rugged to meet the demand-
ing needs of fixed, high magnifica-
tion machine vision, metrology,
biomedical, fiber optic, and elec-
tronic imaging applications.
Precise Eye lenses incorporate
Navitar’s precision engineering
and quality construction, result-
ing in images that are sharp, high
resolution and optically corrected
for remarkable image quality.
Precision
Precise Eye lenses provide high
resolution and low distortion. The
resolution capability (the ability to
distinguish minute detail) exceeds
that of standard C-mount video
lenses and most other competitive
micro optics. Precise Eye lenses
from Navitar yield image resolution
as high as 220 lp/mm.
Precise Eye
high magnification fixed applications. The Navitar Precise
Eye series covers magnification factors between 0.22X and
91.0X. The working distance ranges from 13 mm up to
370 mm.
Precise and robust, they are used in machine vision and
biomedical applications requiring a fixed field of view,
high magnification and high quality image from a long
working distance. They provide a fixed aperture, fixed
focus and fixed working distance which ensures robust and
repeatable performance in your demanding environment.
Fine focus mechanisms are available on two models.
Flexible by Design
The Precise Eye series of lenses
is designed on a modular basis.
This interchangeable design,
combined with a wide selection
of available attachments, fixed
or 3 mm fine focus, allows you
to easily meet your exact needs.
Lighting
Fiber optic, LED, co-axial, ring
light or other light sources can
be selected for specific applica-
tions.
Distortion
Precise Eye lenses can attain
distortion of less than 0.14%.
Selecting the Correct Lens
Simply choose the block from
the Magnification Matrix that
most closely approximates your
requirements.
