Title :
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
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;
Conference_Titel :
Industrial Automation and Control: Emerging Technologies, 1995., International IEEE/IAS Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2645-8
DOI :
10.1109/IACET.1995.527643
