The invention discloses a large-light-transmission high-illumination
projection lens assembly matched with a 0.47 DMD. The
projection lens assembly comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a diaphragm, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens distributed in sequence from an object side to an image side along an
optical axis, wherein each of the first lens to the tenth lens comprises an object side surface and an image side surface; and the first lens has a negative
refractive index, the second lens has a negative
refractive index, the third lens has a positive
refractive index, the fourth lens has a negative refractive index, the fifth lens has a positive refractive index, the sixth lens has a negative refractive index, the seventh lens has a negative refractive index, the eighth lens has a positive refractive index, the ninth lens has a negative refractive index, and the tenth lens has a positive refractive index. The
optical imaging lens
assembly has only the above ten lenses with refractive indexes. The actual maximum compatible
target surface size of the lens assembly of the invention can reach phi 16 mm; the lens assembly has strong compatible use characteristics; and a large-aperture high-illumination design is adopted, so that projected pictures are clear and uniform.