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| In addition to the two NIR product
lines, Optec has designed and built numerous special lenses, either as
modifications of standard models or as full custom designs. Optec
welcomes these programs, even if the need is only for small quantities.
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Long Focal Length NIR
Lenses
For imaging at longer distances,
Optec offers two lenses with Canon FD mounts and c-mount adapters.
Longer focal length lenses can be built but the maximum aperture is
generally subject to practical size and weight limits.
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Large-Format NIR Lenses
Some newer
high-resolution NIR sensors are quite large. Optec can design
lenses for these.
Pictured
is the C0411, a 35 mm f/1.4 lens with an image
diameter of 32.8 mm and an MTF of 40% at 25 lp/mm. |
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Computational NIR Optics
In addition to imaging
lenses, Optec can produce transfer and Fourier optics for use in
optical computing. The lens shown is a relay pair designed to
provide a Fourier image in the gap for filtering by a liquid
crystal matrix. |
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Range Extenders
For convenient changes in
focal length of fixed lenses, Optec supplies 2x range
extenders. Models are available for lenses with either 16 mm or
20.5 mm image diameter and all band options. |
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C-mount Adapters
All Optec SWIR lenses are supplied with
common large camera mounts to permit use of the space behind the
lens for filtering. For cameras with C mounts, Optec supplies
heavy-duty adapters suitable for use with these lenses. |
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Need a custom SWIR lens? Fill out
this form and fax it to us for a quote.
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Visit the Optec
website |
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