Lamp

摘要

Provided is a lamp configured to control an irradiation angle. The lamp includes a light emitting unit that is provided with an LED and a reflector having a reflecting surface that reflects light from the LED. The reflecting surface of the reflector is formed to have a parabolic shape in a cross-section perpendicular to an optical axis of the LED. The reflecting surface of the reflector is formed to have an elliptical shape in a cross-section parallel to the optical axis of the LED so as to condense and diffuse reflected light beams in a forward direction.

主权项

1. A lamp comprising:
a plurality of light emitting units each including a semiconductor light emitting element and a reflector having a reflecting surface that reflects light from a corresponding semiconductor light emitting element, wherein the reflecting surface of the reflector is formed to have a parabolic shape in a cross-section perpendicular to an optical axis of the semiconductor light emitting element and to have a condensing-diffusing shape in a cross-section parallel to a plane including the optical axis of the semiconductor light emitting element and a symmetry axis of the parabolic shape so as to condense and diffuse reflected light beams in a forward direction.