Title: Color freely changeable fully-centralied extra-high photo effect solid photo source
Application Number: 94112278 Application Date: 1994.08.26
Publication Number: 1121646 Publication Date: 1996.05.01
Approval Pub. Date: Granted Pub. Date: 1999.12.22
International Classifi-cation: F21M3/25,F21Q3/00,H01L33/00
Applicant(s) Name: Zhang Longbao Address: 200127
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The characteristic lies in that a circular cylinder tube holder is casted from engineering plastics, the upper part of the tube holder forms a condave-inward parabolic reflector. On two sides of the tube holder, four metallic supporters are casted parallelly. Each supporter has a section of sagging body to form four feet to stretch to the focus position of the reflector, among which one foot is cathode of light emitting diode, the other three are anodes. On the cathode, a hemispherical concave-inward surface is formed, in which three chips of red green and blue three primary coloured light emitting diode are placed. By changing the work current of the diode, the colour of the light source can be changed arbitrarily.
Time: 5