Tsai, Hsuan-Jung, Tsang-Yen Hsieh, and Jyh-Liang Wang. “Optical Design of Direct Projection Bicycle Light”. Proceedings of Engineering and Technology Innovation 2 (July 28, 2016): 1–3. Accessed November 25, 2024. https://ojs.imeti.org/index.php/PETI/article/view/189.