[purpose] Half angle of view ω = optical cover allows the angle of view of around 40˚, and a low cost configuration less the number of copies, and also to provide a projection lens, each aberration is well corrected at the wide side cast. [Configuration] Comprising a second lens group having a first lens group with positive refractive power having a positive refractive power in this order from a side close-up imaging lens group and; It has a positive refractive power and consists of a Fresnel lens having a Fresnel lens surface of at least one surface, Further, to a projection lens that satisfies the conditional expressions (1) and (2). _{(1) 1.4 <f 1 /} f <2.8 _{(2) 1.5 <f 2 /} f <6.0 only, f: focal length of the lens field f _1: focal length of the first lens f _2: focal length of the second lens group