Lighting apparatus

摘要

A lighting apparatus having a magnetron configured to generate microwaves, a waveguide including a wave guide space configured to introduce and guide the microwaves and an aperture to discharge the microwaves, a resonator to which the microwaves are transmitted through the aperture, and a bulb located in the resonator, the bulb encapsulating a light emitting material and configured to emit light based on the transmitted microwaves is provided. The apparatus also includes a reflective member or optical member located in the resonator such that light emitted from the bulb towards the aperture is reflected away from the aperture.

主权项

1. A lighting apparatus comprising:
a magnetron configured to generate microwaves; a waveguide including:
a wave guide space configured to introduce and guide the microwaves from the magnetron; andan aperture to discharge the microwaves from the wave guide; a resonator to which the microwaves are transmitted through the aperture; a bulb located in the resonator, the bulb encapsulating a light emitting material and being configured to emit light in response to the transmitted microwaves; and a reflective member located in the resonator to at least partially cover a portion of the aperture such that light emitted from the bulb towards the aperture is reflected away from the aperture, wherein the reflective member extends from the aperture into the resonator and defines a slot between the reflective member and the aperture, and the microwaves are transmitted into the resonator through the aperture and the slot, wherein the reflective member includes:
a first member located in the path of light emitted by the bulb toward the aperture; andsecond and third members extending from opposite sides of the first member, respectively, to the aperture, and wherein the slot is defined by the first member, the second member and the third member.