TCD2400DG, a lens-reduction type CCD linear image sensor developed expressly for line scan cameras used in visual inspections, has been introduced by Toshiba Electronic Devices & Storage Corporation (Toshiba). Shipments start today.
Sorting and grading foodstuff, recognizing and removing foreign objects, identifying types of recycled plastics, and detecting scratches or stains on industrial products are just a few of the diverse applications for image inspection equipment that incorporates line scan cameras, including color sorters.
The color CCD linear image sensor TCD2400DG has 4096 picture elements in a three-line array with a pitch of 7?m between element. Each line functions red, green, and blue (RGB) independently. Compared to Toshiba’s current image inspection equipment, the 10.5kHz TCD2564DG, the line rate, or the number of lines captured per second, is faster at 22.7kHz.
In order to accurately and precisely detect objects moving quickly in front of the equipment, image inspection equipment quickly processes enormous amounts of image data. TCD2400DG will contribute to equipment with faster processing rates by about doubling the readout speed of TCD2564DG.
The sensor does not require the color interpolation processing that Bayer element arrays use in order to obtain high-resolution color images. Because of its performance, it is ideal for color line scan camera applications that call for immediate judgment.
Other enhancements are incorporated into the sensor. By integrating the timing generation circuit and CCD driver—both of which are externally installed in Toshiba’s existing products—into the sensor, fewer signal lines are needed to operate the CCD, negating the need for an external CCD driver.
Additionally, it simplifies wiring and simplifies the system development process by doing away with the requirement for precise timing adjustments between signals. The suppression of electromagnetic interference during high-speed operation is aided by the minimization of external wire.
Toshiba will continue to expand its product lineup and promote advances in imaging and sensing technology that supports applications such as scanners for multifunction devices and inspection equipment.
