The utility model aims at providing a kind of PHUD
silica gel buffer protection structure, it includes base and optical
assembly, back light cavity is set up in base, optical
assembly includes first lens, second lens, outer frame and several
silica gel columns, first lens is set in the bottom of back light cavity, each
silica gel column is respectively set in the position at four corners of back light cavity, and each silica gel column is all abutted on first lens, second lens is set on the top of each silica gel column, outer frame is buckled on base, to make outer frame press-clamp second lens. In this way, first lens and second lens are supported and fixed by silica gel column between them, using the soft property of silica gel column, so that first lens is reliably fixed in the bottom of base, second lens is reliably fixed in the top of base, when being installed on car and being used, whether it is the vibration of bumpy road or high-temperature use environment, the firmness of first lens and second lens can be effectively guaranteed, to avoid positional deviation.