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Connectors
TM-6740GE Software
Applications for the TM-6740GE include machine vision, medical imaging, intelligent transportation
systems, high-definition graphics, on-line inspection, gauging, character reading, archiving, and high-
security surveillance.
2.4 Features
•
Miniature size and light weight
The TM-6740GE is a member of the AccuPiXEL family, which uses a modular design. This means
that the electronics in the camera are arranged in a modular format, giving it flexibility. In addition,
the use of miniature solid-state components results in a compact, lightweight camera that is
50.8mm x 50.8mm x 81.5mm in dimensions, and weighs 155 grams.
•
Imager
The TM-6740GE uses a dual-tap progressive-scan interline transfer CCD that has the following
features:
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Resolution of 640 x 480 active pixels for excellent image quality.
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7.4 x 7.4 µm square pixels for precise dimensional measurement.
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High-speed electronic shutter capability for high dynamic resolution of moving objects that
eliminates the need for a mechanical shutter.
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Progressive-scan CCD eliminates interlace deterioration of image and increases ease of
computer interface.
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High sensitivity and low noise at fast scanning. The CCD has an excellent S/N ratio at the
default setting that is greater than 50dB.
-
The CCD has a built-in micro-lens for increased quantum efficiency.
•
Electronic shutter
The TM-6740GE has a substrate drain-type shutter mechanism which provides superb pictures at
various speeds without smearing. For more information, please see Section 8.3, “Electronic
Shutter,” on page 44.
•
Asynchronous reset
The TM-6740GE captures asynchronous reset images and provides single-shot video output with
single FDV. This makes it simpler for an ordinary frame grabber to capture the async reset images.
The TM-6740GE’s asynchronous reset is flexible and accepts external horizontal drive (HD) for
phase locking. When the camera is triggered using VINIT, the scanning is reset and the CCD is
purged to start a new frame.
The TM-6740GE has three modes to control the asynchronous reset and shutter speed:
-
Async, no shutter.
The video signal and FDV are reset by VINIT.
-
Async direct shutter.
The shutter speed depends on the number of horizontal lines
scanned, which is user-selectable.
-
Internal shutter speed control.
The shutter speed varies from 1/250 to 1/64,000 sec. The
video signal and FDV starts with internal V reset timing related to shutter speed.
-
External VINIT with pulse width.
The vertical duration between pulse edges triggers the
camera and controls the shutter speed.
Summary of Contents for TM-6740GE
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