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Near Infrared Lenses |
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Near-infrared cameras based on InGaAs
sensors have found wide use in industrial inspection,
telecommunications, thermal monitoring and research. To address the
special requirements of this optical band, Optec has designed a large
selection of lenses optimized for both the wavelengths properties of the
sensors used to detect them.
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Features of Optec
NIR Lenses
The NIR band most often used extends over the 900-1700 nm range.
In some cases, the long wavelength end of the band may extend to
2500 or even 3000 nm. Optec offers lenses to cover all of these
ranges. All Optec NIR lenses share these features: |
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- Antireflectance coatings
optimized for high NIR transmission
- Designs using new non-toxic
glasses
- Low chromatic aberration
across the NIR band
- Long back focal distance for
ease of camera design
- Rugged construction of focus
and iris mechanisms for long life
Resolution matched to imager pixels for low aliasing
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Learn more about NIR
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| Optec NIR Lens Product Lines
Optec offers two full NIR lens product lines
plus several special-purpose lenses.
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f/7 500 mm |
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- Image Format (diagonal) 20.5
mm
- F.O.V. (diagonal) 2.35
degrees
- Min. Working Distance 15 m
- MTF>50% at 25 lp/mm
- Wavelength Range 0.9 to
1.7μm
- Canon FD mount
More… |
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f/1.4 Short Back Focus |
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- Focal lengths – 25, 35, 50,
75, 100 mm
- All models f/1.4
- 18 mm image diameter
- 40% modulation at 15 lp/mm
- C-mount version available
More… |
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f/2 Standard Canon Mount |
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- Focal lengths – 25, 35, 50,
75, 100 mm
- All models f/2
- 16 mm image diameter
- 40% modulation at 15 lp/mm
- C-mount adapter available
More… |
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Lenses for Special Situations |
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- Focal lengths to 300 mm
- Low-cost f/4 C-mount models
- Infrared optical processing
couplers
- Focal length extenders
More… |
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Optec also makes multi-channel
NIR prisms –
Information here
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Visit the Optec
website |
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[ Home ] [ Up ] [ Near Infrared Lenses ] [ Medical Imaging Optics ] [ Multi-channel Separation Prisms ] [ Custom Design & Production ]
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