The research objectives of the thesis: Improve the usability and quality of LED-based lighting products; develop a new generation of high-efficiency LED lights, evenly distributed, eliminating light pollution, and replacing existing LEDs. | MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY ----------------------------- GRADUATED UNIVERSITY SCIENCE AND TECHNOLOGY DUONG THI GIANG RESEARCH AND DEVELOPMENT OF MICRO-NANO OPTICAL MATERIALS AND FREE-FORM OPTICS USING IN SOLID STATE LIGHTING Major Optical optoelectronic and photonic materials Code 9440127 SUMMARY OF DOCTORAL THESIS IN MATERIAL SCIENCE Ha Noi 2020 The thesis has been completed at Graduated University of Science and Technology Vietnam Academy of Science and Technology Science supervisors 1. Ass. Prof. Tran Quoc Tien 2 Ass. Prof. Pham Hong Duong Reviewer 1 Reviewer 2 Reviewer 3 . This thesis was defended at Evaluation Council held at Graduated University of Science and Technology Vietnam Academy of Science and Technology on 2020 The thesis can be further referred at - The library of Graduated University of Science and Techonology - National library of Viet Nam 1 INTRODUCTION 1. The necessity of the thesis The process of urbanization is fast people live and work mainly indoors under artificial lighting. The artificial lighting environment is different from natural light in terms of length spectral structure day and night cycle and the circadian rhythm of residents will be reversed and cause a lot of physical health consequences physiology and psychology such as insomnia obesity poor physiology infertility fatigue even cancer. Therefore creating a lighting environment for humans to protect eyevision and health is essential. In this thesis I will systematically present problems to be solved in the field of interior lighting derived from the knowledge about the role of light for people. Next is the design manufacture and application of solid lighting products on the basis of LED combined with free-form optical components in interior lighting. 2. The research objectives of the thesis Improve the usability and quality of LED-based lighting products. Develop a new generation of high-efficiency LED lights evenly distributed .
