Lighting apparatus

摘要

A lighting apparatus (1) comprises a housing (5), a light source (11) comprising a plurality of semiconductor light emitting devices (13), and allocated in the housing so as that the semiconductor light emitting devices are directed downward, a first reflector (21), which is mounted beneath the light source (11) and formed in a convex body gradually thinning down toward upward, comprising a plurality of segmental reflectors (23) having on its top a installation hole (24) for arranging the semiconductor light emitting device (13) and on its bottom opened wider than the installation hole, and a second reflector (31) allocated beneath the first reflector (21), wherein the height of the second reflector is defined to secure that a first light shielding angle (¸1) specified by a straight line passing through the semiconductor light emitting device and the bottom edge of the segmental reflector of the first reflector is larger than a second light shielding angle (¸2) specified by a straight line passing through the bottom edge of the segmental reflector of the first reflector and the bottom edge of the second reflector.