Development of A Multi-wavelength LED Modulation System for Biology Study

• Main Authors: Den-Hua Lee, 李登華
• Other Authors: Wen-Long Yao
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/86690182831577390226

碩士 === 國立高雄第一科技大學 === 機械與自動化工程所 === 94 === Abstract In recent year, it is increasing and rapidly that the high intensity light emitting diode （ LED ） is applied in the research of biotechnology. LED is provided with characteristic of cooling light、small volume and saving power, and is driven by directed current that is easy to be controlled and modulated, and the life time of LED is 10 multiple of fluorescent lamp. Now, there are many products that used the modulation technique in multiple wavelength of LED. The research we want to do is the invention that uses the technique of modulation and synchronizing in multi-wavelength LED. Also we discuss the design of the phase shift between multi-wavelength LED. The research which we develop is the function of the tuning in wavelength、frequency、duty ratio、intensity and phase shift for modulating light. It is a very powerful instrument in the study of photophysiology for biology.