INCANDESCENT LAMP, REFLECTOR INCANDESCENT LAMP, AND LIGHTING APPARATUS

摘要

Disclosed is an incandescent lamp for use while mounted within a reflector having a concave reflective surface that contains a hermetically sealed bulb storing a filament assembly (60) therein. The filament assembly (60) includes a primary light-emitting portion (64A) that is a single coil wound in a cylindrical shape with a short axis (SX) and a long axis (LX) in a cross sectional plane, the primary light-emitting portion (64A) intersecting an optical axis (R) of the reflector. The primary light-emitting portion (64) intersects the optical axis (R) in such a way that a central axis (CX) thereof, which is substantially perpendicular to the short axis (SX) and the long axis (LX), is tilted with respect to the optical axis (R) at least in a direction perpendicular to the optical axis (R) and the long axis (LX).