초록 ▼

A retrofit lamp having light emissive diodes, and more particularly, to a retrofittable lamp configured as a standard incandescent lamp which can be used effectively in illuminated signs, such as an exit sign, for operation on each cycle of A/C voltage applied. The newly designed solid-state lamp fe

A retrofit lamp having light emissive diodes, and more particularly, to a retrofittable lamp configured as a standard incandescent lamp which can be used effectively in illuminated signs, such as an exit sign, for operation on each cycle of A/C voltage applied. The newly designed solid-state lamp features a base that can be rotated, approximately 160 degrees, to allow for the optimal positioning of the LED array to maximize the light intensity directed toward the illuminated area.

대표청구항 ▼

[ I claim:] [1.] An LED retrofit lamp for exit signs, comprising:a cylindrical glass envelope associated with a screw base, the base adapted for insertion in a standard bulb socket;an illumination means having circuitry for connection with an A/C source through a nondissipative voltage dropping elem

[ I claim:] [1.] An LED retrofit lamp for exit signs, comprising:a cylindrical glass envelope associated with a screw base, the base adapted for insertion in a standard bulb socket;an illumination means having circuitry for connection with an A/C source through a nondissipative voltage dropping element, the illumination means comprising a plurality of LEDs arranged in two serial LED strings, comprising first and second LED strings, each string connected in parallel with the other, enclosed in the glass envelope;a rotatable assembly for rotating the illumination means against a frictional contact with the envelope, within a rotating range of less than 160 degrees with reference to the base; and,a means for anchoring the illumination means in a desired optimal view, rotative position with reference to the base.