Not Your Standard CCTV Lens
There are a growing number of video imaging applications in which a single,
constant magnification and a fixed working distance are required. Navitar
has responded to this need with our new Precise Eye series of lenses.
Precise Eye lenses are designed to provide superior optical performance
and high vibration stability over standard C-mount video lenses. They
are optically precise and rugged to meet the demanding needs of fixed,
high magnification machine vision, metrology, biomedical, fiber optic,
and electronic imaging applications. Precise Eye lenses incorporate Navitar’s
precision engineering and quality construction, resulting 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.
Contrast
The lenses in the Precise Eye series 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.
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 applications.
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.
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High resolution, diffraction-limited f/4.5 optical quality
for high precision measurement and inspection
Precise Eye Versus CCTVWhen selecting a lens for high precision applications, it is important to differentiate between standard CCTV (video) lenses and Navitar’s Precise Eye series. CCTV lenses were originally designed for very low magnification, surveillance applications at working distances of greater than three feet (approximately 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 standard CCTV 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 high magnification fixed applications. The Navitar Precise Eye series covers magnification factors between 0.30X and 91.0X. The working distance ranges from 13 mm up to 356 mm.
Precise and robust, they are used in machine vision 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 performance in your demanding environment. Fine focus mechanisms are available on two models.