Patent ID: 6547417
Filing Date: 2003-04-15
Classification: F21K,F21V,F21Y,H01R,Y10S

Abstract:
A convenient replacement composite power saving environmental bulb comprised of two semi-spherical casings, a keyboard, a terminal plate, a voltage variation plate and a light holder characterized in that;semi-spherical casing, having on its inner circumference caulking groove, corresponding rings longitudinally arranged at equal spacing on its outer surface; each ring having two matching holes to connect the caulking groove, a pair of tapered channel track to receive both wings from the terminal plate and a gland provided at the front of said semi-spherical casing; a keyboard, relating to a strip circuit board having electro-de-positioning holes corresponding to the ring, and having two DC pins at the end close to the holder to connect the voltage variation plate; a terminal plate, having at its lower end a longitudinal insertion flat, at its middle two wings, at its upper end a sleeve aligned to the matching hole in the semi-spherical casing and said wings each having counter tapered groove to engage the tapered channel track in the matching hole; a voltage variation plate, having its one end two plug sockets and on its surface resistors, capacity regulation and voltage transformation devices; and a light holder, relating to a plastic casing joined to a copper cap, having multiple mortises at equal spacing provided in its inner circumference to receive corresponding tenon provided on the semi-spherical casings; and two retaining frames inside the holder to hold the voltage variation plate in position to become an integrated structure together with multiple diodes each having its two pins inserted into the sleeve to the terminal plate, both semi-spherical casings, and the voltage variation plate in parallel for providing excellent conductivity.