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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.
| 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: |  | - 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 imaging |
| | Optec NIR Lens Product Lines Optec offers two full NIR lens product lines plus several special-purpose lenses. | f/1.4 Short Back Focus |  | - 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… | | f/2 Standard Canon Mount |  | - 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… | | Lenses for Special Situations |  | - 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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For Further Information, Please contact us.
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