PC controlled laser diode system application

Author

Chang, Chi-Jeng ; Hsiao, Pei-Yung ; Yang, Pol-Whui ; Jane, Shu-Tung

Author_Institution

Graduate Inst. of Ind. Educ., Nat. Taiwan Normal Univ., Taipei, Taiwan

fYear

1995

Firstpage

693

Lastpage

697

Abstract

This paper presents a system with personal computer (PC) controlled laser-diode beam to make film exposure for generating 256 gray-level images. The hardware equipment of this system includes an IBM-PC 8255 interface-card and an XY-table. A control software is developed to receive image data from a commercially available software such as PAINT SHOP, then convert them to signals for the laser diode and XY-table. The gray-level of each pixel in image file is represented by an 8-bit binary number. Two ways of control are demonstrated: 1) use this 8-bits number as parameters for timing delay when the laser diode is on with a constant power output; and 2) use this 8-bits number to go through a D/A converter to control the laser diode for outputting beams with varying intensity. Two potential applications for this system are given

Keywords

computer graphics; image processing; laser beam applications; microcomputer applications; timing; 256 gray-level image generation; 8 bit; 8-bit binary number; IBM-PC 8255 interface-card; PC controlled laser diode system; XY-table; image file; image processing software; timing control; Application software; Control systems; Diode lasers; Hardware; Image converters; Image generation; Laser beams; Microcomputers; Optical control; Paints;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Automation and Control: Emerging Technologies, 1995., International IEEE/IAS Conference on

Conference_Location

Taipei

Print_ISBN

0-7803-2645-8

Type

conf

DOI

10.1109/IACET.1995.527643

Filename

527643