Patent ID: 7726818

Claim:
An image forming apparatus which forms a whole image including a first part image and a second part image on a front side of an image forming target unit formed by overlapping portions of the first and second part images, the image forming apparatus comprising: the image forming target unit; a first projector projecting light corresponding to the first part image onto a back side of the image forming target unit; a second projector projecting light corresponding to the second part image onto the back side of the image forming target unit; a first planoconvex lens corresponding to the first projector; and a second planoconvex lens corresponding to the second projector; wherein the first and second planoconvex lenses are configured so that flat sides of the first and second planoconvex lenses face a back side of the image forming target unit, a convex side of the first planoconvex lens faces a projection side of the first projector, a convex side of the second planoconvex lens faces a projection side of the second projector, and a position at which light beams projected from the first and second projectors meet with each other is inside the first or second planoconvex lenses, and wherein the image forming target unit, the first and second projectors, and the first and second planoconvex lenses are separately disposed, respectively.