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AT-140CL and AT-200CL 3CCD colour cameras

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JAI has released the AT-140CL and AT-200CL, the latest generation in its 3CCD colour camera series. The 3 x 1.4 Megapixel and 3 x 2 Megapixel cameras draw upon JAI's expertise in prism-block technology to provide a large sensor format and high resolution.

The AT-140CL features three 1/2-inch progressive scan CCDs (Sony ICX267AL), each with a resolution of 1,392 x 1,040 pixels and an individual pixel size of 4.65 by 4.65µm. The AT-200CL uses three 1/1.8-inch progressive scan CCDs (Sony ICX274AL) to provide a resolution of 1,628 x 1,236 pixels with an individual pixel size of 4.4µm2.

The CCDs are affixed to a prism block that splits the incoming light into red, green, and blue colour channels. JAI's alignment process ensures the three sensors are aligned to within 1/4-pixel accuracy, providing pixel-precise colour values suitable for machine vision analysis, measurement, and processing.

The AT-140CL operates at 25fps with full 3 x 1.4 Megapixel output via a Camera Link digital interface. The AT-200CL operates at 20fps with full resolution. Users can select 3 x 8-bit RGB output via a single port Camera Link base configuration, or can use the cameras' dual Camera Link connectors to output 3 x 10-bit or 3 x 12-bit RGB data via a Camera Link medium configuration. By offering 3 x 12-bit RGB output enables the cameras to distinguish between the most subtle of colour variations. Significantly faster frame rates than the base rates can be achieved via the cameras' partial scan and vertical binning modes.

A variety of features are provided to optimise image quality for specific applications and lighting conditions, including four white balance modes (manual, one-push auto, continuous auto, and preset colour temperature), three gamma settings plus a Look-Up Table (LUT), automatic shading compensation, blemish compensation, a knee function with individually adjustable RGB values, and a linear colour matrix circuit enabling users to manually adjust each colour channel or choose from pre-defined industry standard settings developed by HP, Microsoft, and Adobe.

The cameras are suited to applications in semiconductor production, food sorting, print inspection, flat panel quality verification, and in medical devices for patient diagnostics. Multiple trigger modes and programmable or pre-set shutter speeds faster than 40 microseconds, make the models suitable for a wide variety of machine vision applications.

JAI is also developing versions of these cameras with GigE Vision interfaces, though no release dates have been set at this time.

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