| 摘要 |
An LED bulb including a light-emitting portion having an LED element as a light-emitting source, wherein the light-emitting portion includes an LED module having an LED substrate elongated in one direction and a plurality of the LED elements arranged so as to be arrayed in the longitudinal direction of the LED substrate on at least one of surfaces of the LED substrate, the LED module being incorporated in an optical member, and the optical member includes an optical functional portion configured to direct light in the direction of an extension of the LED substrate in the longitudinal direction thereof. |
