| 摘要 |
PROBLEM TO BE SOLVED: To suppress decrease in light condensing properties in a light condensing point even when a light emitting point of a light source is large.SOLUTION: A light guide component includes a first reflection surface 50 which extends from an LED package 24A having LED chips 26, which are a plurality of light emitting points, at least to the vicinity of a light receiving point, and which condenses light of the LED package 24A and guides it to the light receiving point. The first reflection surface 50 configures a light condensing type light guide 8 formed by superposing each of elliptic reflection surfaces 70 defined for each LED chip 26 with the LED chip 26 being a first focal point f1 and the light receiving point being a second focal point f2. |
