Improved packaging structure of cylindrical white light laser diode

The invention relates to an improved packaging structure of a cylindrical white light laser diode, in particular to a packaging structure of a cylindrical white light laser diode, which is characterized in that a blue laser chip projects a blue laser beam downwards to ceramic fluorescent powder and the ceramic fluorescent powder generate physical excitation characteristics to reflect the white laser beam. A groove is formed in the middle of a base, a ceramic fluorescent powder body can be fixedly arranged in the groove, a base rod adjacent to the groove is further arranged on the base in a protruding mode, the front face of the base rod is a vertical plane or an inclined plane and is used for fixedly arranging a blue light laser chip, and a cover body with a light transmitting opening in the top is fixedly covered with the base. Therefore, the cylindrical white-light laser diode is formed. 本发明为一种圆柱型白光雷射二极管封装结构改良，特别是指一种以蓝光雷射芯片向下投射蓝色激光束至陶瓷荧光粉体与其荧光粉产生物理激发特性而反射出白色激光束之圆柱型白光雷射二极管的封装结构，主要系有一底座之中间开设有一凹槽，可供置固有一陶瓷荧光粉体，