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Intelligent Camera

Photonics.com
Apr 2010
Vision Components GmbHRequest Info
 
ETTLINGEN, Germany, April 16, 2010 — Vision Components GmbH has introduced an intelligent camera that can record and process electroluminescence images for quality checks of solar wafers and photovoltaic modules.

The VC4067/NIR features photosensitive technology that provides high-precision images at wavelengths of up to 1100 nm, thanks to a unique sensor operation mode. It reliably detects and identifies defects such as cracks and micro cracks, shunts, circuit interruptions, faulty printing, edge breakage, contamination and disconnected fingers. The cost-efficient solution includes all image processing electronics and does not require cooling systems.

Featuring an integrated 400-MHz processor from Texas Instruments, the camera has computing power of 3200 million instructions per second. Its ?-in. CCD sensor delivers 1280 × 1024-pixel resolution, operating at a maximum frame rate of 14 fps and achieving a freely programmable exposure time from 5 µs to 17 s. It is supplied with RS-232 and 100-Mb Ethernet interfaces and an external trigger input that enables jitter-free image capture, even at high reading frequencies.

Standard configuration also includes four digital programmable logic controller inputs, four outputs and an SXGA video output. Measuring just 110 × 50 × 35 mm, the camera can be easily integrated into applications where installation space is limited.

With the onboard processor, the images can be processed and/or preprocessed inside the camera to reduce data streaming and process time. Off-line and in-line solutions are possible, with cycle times of <1 s per cell.

Pixel size is 6.45 × 6.45 µm. Included is a programmable look-up input table.

For more information, visit: www.vision-components.com


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GLOSSARY
camera
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
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