Image manipulation device
First Claim
Patent Images
1. An image manipulation device arranged to process a pattern printed upon a printed media, said device including:
- a transport assembly for the printed media;
a linear image sensor located to read the pattern from the printed media during transportation by the printed media transport assembly, the linear image sensor including an array of photosensitive CMOS light sensors, the resolution of the linear image sensor being at least twice a highest spatial frequency of the pattern; and
an illumination assembly arranged to reflect light from the printed media onto the linear image sensor.
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Accused Products
Abstract
An image manipulation device is arranged to recover data stored in a pattern printed upon a card. The device includes a linear image sensor that incorporates an array of CMOS light sensors. An illumination assembly is provided that includes a light pipe of plastic material arranged to direct light from an LED over a strip of the card as it is moved by a transport assembly. The lightpipe is formed with a cylindrical lens, to direct light from the LED to a strip across the card, and a series of micro-lenses disposed to focus light reflected from the card onto the light sensors.
47 Citations
7 Claims
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1. An image manipulation device arranged to process a pattern printed upon a printed media, said device including:
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a transport assembly for the printed media; a linear image sensor located to read the pattern from the printed media during transportation by the printed media transport assembly, the linear image sensor including an array of photosensitive CMOS light sensors, the resolution of the linear image sensor being at least twice a highest spatial frequency of the pattern; and an illumination assembly arranged to reflect light from the printed media onto the linear image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification