| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-resistant simple light guide that is inexpensive and has high heat resistance.SOLUTION: The heat-resistant simple light guide includes a plurality of cores made of quartz glass, and a heat-resistant low refractive index resin layer for collectively covering the cores. Preferably, the heat-resistant low refractive index resin layer is made of fluororesin. Preferably, the fluororesin is an ultraviolet curable fluoride acrylate resin. |
