2013年
A High-Resolution Laser Beam Collimator System for a High-Density Ternary Barcode Detection System
2013 13TH INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2013)
- 開始ページ
- 1384
- 終了ページ
- 1387
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- 出版者・発行元
- IEEE
A laser beam collimator system with a high numerical aperture lens and a 1.2 mm aperture masked collimator is proposed to realize a miniature high-resolution ternary barcode detection system in which high-density ternary barcodes can be detected. It was clarified that a 1.2 mm aperture mask combined with a 0.5 NA lens is suitable for maintaining the laser beam width at less than 150 flm over a wide range of more than 4.5 cm. The laser head with this collimator system was applied to a ternary barcode detection system. It was confirmed that the detection system could detect the ternary barcode with a minimum bar width of 0.2 mm over a practical detection range greater than 5 cm (which conventional detection systems could not detect) by optimizing the clamp bias voltage in the clamping circuit to -0.8 V, and the gray bar concentration to 58 %. This collimator system has potential applications in high-speed, high-resolution ternary or binary barcode detection systems.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000347178200289