LED BULB CHARACTERIZED BY STRUCTURE FOR IRRADIATING SINGLE REFLECTING MIRROR (INCLUDING CONVEX MIRROR, SPHERICAL MIRROR, PARABOLIC MIRROR AND ELLIPSOIDAL MIRROR) WITH THE LIGHT OF SEVERAL LED

摘要

PROBLEM TO BE SOLVED: To provide an LED bulb saved in energy and resource by a predetermined lighting function.;SOLUTION: Several LED 4 are arranged to radiate the light from positions separated from a mirror axis 3 of a reflecting mirror 2 so that the reflected lights are overlapped with each other for irradiation in nearly the same direction as the mirror axis 3. The light reflected by the reflecting mirror 2 is radiated for irradiation with parallel light 12, irradiation with diffused light and irradiation with converged light in response to a difference of kind, mirror diameter and the real focal length of the reflecting mirror 2 and a difference of angle of beam spread of LED.;COPYRIGHT: (C)2010,JPO&INPIT