Projection light source for AR equipment

The invention provides a projection light source for AR (Augmented Reality) equipment, which comprises a red laser chip, a green laser chip, a blue laser chip and a tube shell, and is characterized in that the green laser chip is positioned between the red laser chip and the blue laser chip; according to the projection light source, effective beam combination and waveguide are carried out on the red light laser chip, the green light laser chip and the blue light laser chip through the waveguide beam combiner, and then white laser output by the waveguide beam combiner is used as a standard light source for ar display in cooperation with the collimating mirror, so that the overall structure of the projection light source is simplified, the production cost is saved, and the production efficiency is improved. Projection light source products are good in consistency and simple in overall structure, and the assembling difficulty of the products is reduced. Metal film reflection is matched with a waveguide combiner