Machine Vision Lenses and Optics - STEMMER IMAGING

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Kowa LM-HC-VIS-SWIR

Transmission from 450 nm up to 2000 nm with reduced focus shift

Kowa LM-HC-VIS-SWIR lenses with a transmission of 450-2000 nm cover the range from visible to SWIR with the advantage of a reduced focus shift.

The lenses are suitable for a large number of applications with VIS-SWIR and hyperspectral cameras to precisely analyse the reflection properties of materials over a wide range of wavelengths. This is often used in machine vision for material analysis and grading.



Reasons for the Kowa LM-HC-VIS-SWIR

Corrected lenses for perfect image quality

The primary benefit for VIS-SWIR correction is that it allows an image to remain in focus even when the wavelength changes from visible to infrared or vice versa. With a standard visible, NIR or SWIR lens, a focus shift will occur due to differences in the refractive index if the wavelength fluctuates. However, by incorporating extra low dispersion (XD) glass and carefully aligning all internal lens elements, such focus shift problems are eliminated.

Suitable for high-performance cameras

The lenses are ideal for applications with 1" sensors with a pixel size of down to 3.1µm and suitable for 12 megapixel resolution for use with top performance cameras.


Related camera products

The Kowa LM-HC-VIS-SWIR lens is suitable for a large number of applications with VIS-SWIR and hyperspectral cameras. Please have a look at the following cameras:

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Specifications

  • Sensor size: up to 1"
  • Pixel size (µm): 3.1 and larger
  • Focal length: 8, 12, 25 and 50 mm
  • Aperture: F1.8 - F16
  • Wavelength range: 450-2000nm (VIS to SWIR)
  • Camera mount: C-mount
  • Miscellaneous: Reduced focus shift and very low distortion

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Model Filter thread Camera mount (optics) M.O.D. (mm) Focal length (mm) Max. sensor size Min. pixel size Aperture
KOWA LM12HC-VIS-SWIR New model M34 x 0.5 C-Mount 2000 12.00 1" F 1.80 - F 16.00
KOWA LM16HC-VIS-SWIR New model M30.5 x 0.5 C-Mount 2000 16.00 1" F 1.80 - F 16.00
KOWA LM25HC-VIS-SWIR New model M27 x 0.5 C-Mount 200 25.00 1" 3.10 F 1.80 - F 16.00
KOWA LM35HC-VIS-SWIR New model M34 x 0.5 C-Mount 2000 35.00 1" F 1.80 - F 16.00
KOWA LM50HC-VIS-SWIR New model M30.5 x 0.5 C-Mount 5000 50.00 1" F 1.80 - F 16.00
KOWA LM8HC-VIS-SWIR New model M55 x 0.75 C-Mount 2000 8.00 1" F 1.80 - F 16.00