Projection lens and the projection means

A projection lens for projecting the image beam. This video beam is converted by the light valve illuminated in the illumination light beam from the light valve. This projection lens comprises a first lens group, the second lens group and the third lens group. The first lens group disposed on the transmission path of the image light beam, and having a first optical axis. The second lens group is disposed on a transmission path of the illumination beam and the image beam, and a light valve disposed between the first lens group, wherein the second lens group having a second optical axis and the second axis with respect to the first optical axis tilt. The third lens group disposed on the transmission path of the image light beam, and located between the first lens group and the second lens group. A projection apparatus also provided.