Light source apparatus and lighting apparatus

摘要

A laser lighting module (1) includes a base part (21), a laser diode (11) which is a blue laser device, a substrate (12) with which the laser diode (11) is in contact, a ceramic phosphor (13) which reflects light entering from the laser diode to thereby change a direction of the light and is excited by the light to generate yellow fluorescence, and a lens (21) for adjusting luminous intensity distribution of light emitted from the ceramic phosphor(13). The substrate (12) is formed of a material which is thin and has excellent thermal conductivity, and is in surface contact with the laser diode (11) and the base part. In the laser lighting module (1), since the substrate (12) serves as a device heat radiator, it is possible to easily remove the heat generated by the laser diode (11).