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Proceedings Paper

The optical system design and application of micro 2D barcode
Author(s): Yi-jia Zhu; Liang-liang Li; Cheng Qian; Zhong-cheng Liang
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Paper Abstract

We show an optical system of micro visual tag which is based on the principle of microscope and the property of QR Code. Unlike current optical tag, such as barcodes, must be read within a short rang and occupy valuable physical space on products, the new tags can be shrunk to several millimeters and captured from a distance of over 0.5 meters. We design the transmitter according to the parameters of camera lens. We also take the detection range and apertures into account, meanwhile conduct simulations and experiments. The result shows that: the tag can be captured from a long distance, and the amplified image is able to accurately be decoded.

Paper Details

Date Published: 9 November 2010
PDF: 8 pages
Proc. SPIE 7849, Optical Design and Testing IV, 78492K (9 November 2010); doi: 10.1117/12.870427
Show Author Affiliations
Yi-jia Zhu, Nanjing Univ. of Posts and Telecommunications (China)
Liang-liang Li, Nanjing Univ. of Posts and Telecommunications (China)
Cheng Qian, Nanjing Univ. of Posts and Telecommunications (China)
Zhong-cheng Liang, Nanjing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 7849:
Optical Design and Testing IV
Yongtian Wang; Julie Bentley; Chunlei Du; Kimio Tatsuno; Hendrik P. Urbach, Editor(s)

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