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Mark M Butterworth: Sensor array and illumination system for a large depth-of-field bar code scanner. Hewlett Packard Company, April 23, 1991: US05010241 (111 worldwide citation)

An improved sensor array and illumination scheme for a bar code scanner use a modified Scheimpflug arrangement optical system that simplifies signal processing. The preferred embodiment includes a detector array comprising a multi-element array of photosensors positioned in one Scheimpflug plane and ...


2
Butterworth Mark M: Sensor array and illumination system for a large depth-of-field bar code scanner.. Hewlett Packard Co, July 18, 1990: EP0377973-A2 (16 worldwide citation)

An improved sensor array and illumination scheme for a bar code scanner use a modified Scheimpflug arrangement optical system that simplifies signal processing. The preferred embodiment includes a detector array (131) comprising a multi-element array of photosensors (311) positioned in one Scheimpfl ...



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