| 摘要 |
The present invention is provided with the following: a print substrate (21) having attached thereto LEDs (22, 23, 24); an illumination lens (11) having a surface illumination region (11a) for emitting incident light from the entire surface thereof; and a diffusion plate (18) removably attached to the LED (22, 23, 24) side of the illumination lens (11) and for diffusing incident light. This configuration enables the same print substrate (21) configuration to be used in either a case where LEDs (22, 23, 24) are used or a case where a light bulb is used. |
