Projection lens assembly with six lenses

A projection lens assembly comprising:

• six lenses comprising a first lens having a minus focal distance, a second lens having a positive focal distance, a third lens having a minus focal distance, a fourth lens having a positive focal distance, a fifth lens having a positive focal distance and a sixth lens having a positive focal distance arranged in sequence and with spaces therebetween;
• an aperture stop between the second lens having the positive focal distance and the third lens having the minus focal distance;
• a reflective liquid-crystal panel behind the sixth lens having the positive focal distance, wherein the front sixth lens having the positive focal distance has a greater area than that of the rear reflective liquid-crystal panel;
• and
• a polarizing beam splitter between the sixth lens having the positive focal distance and the reflective liquid-crystal panel, wherein the reflective liquid-crystal panel is behind the polarizing beam splitter.