Camera captures visual and NIR images
An
Adept Electronic Solutions product story
Edited by the Engineeringtalk editorial team
Jul 21, 2008
The AD-080CL uses a multifaceted prism in the optical path with band-pass filters on each spectral axis to give users the ability to directly compare images, pixel to pixel, with different spectra.
Jai has released the AD-080CL 2CCD multispectral camera, which simultaneously captures both colour and near-infra-red (NIR) images in one camera housing and through a single lens.
This provides simultaneous capture of RGB colour and NIR images with pixel correlation between the two images.
The system uses a multifaceted prism in the optical path with band-pass filters on each spectral axis to give users the ability to directly compare images, pixel to pixel, with different spectra.
The AD-080CL is an XGA 1/3in progressive scan sensor capable of 30 frames per second at full resolution (1024 x 767 pixels).
Higher frame rates are possible with partial scan or vertical binning modes.
Several trigger modes are also available allowing random capture of individual images.
It features two Camera Link outputs operating at 24bit colour and 10bit monochrome that produce separate and synchronised images.
The colour CCD and B/W CCD are attached to the beam splitter.
The colour CCD is fitted with a Bayer Mosaic filter that produces high-fidelity RGB colour images.
The B/W sensor is fitted with a NIR filter (700 to 900nm).
Jai's AD-080CL is able to view surface properties in the colour channel while simultaneously viewing just below the surface in the near-IR channel.
A typical application for this capability is the inspection of fruit and vegetables where bruising under the surface cannot be detected with visible light but is clearly viewed in the image from the NIR sensor while simultaneously measuring the colour of the fruit.
Correlating pixels in both colour and NIR is impossible with two separate cameras.
Other applications include the inspection of thin-screen printed plastic packaging while simultaneously inspecting the contents of the packaging.
There are applications in textile defect detection, aerial mapping, print quality inspection and many others.
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