| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp which has simple structure and is excellent in illuminance. SOLUTION: A light source 4 is embedded in a light reflecting member 2 made of transparent resin in which a thin film metal layer is brought into contact closely with an inclined surface of an inverse truncated cone body formed stepwise. A lens 7 in which plural annular trenches 6 are caved concentrically is installed toward the light source side on its optical axis. Thus, the LED lamp is constituted. |
