Patent ID: 9417443
Filing Date: 2016-08-16
CPC Classification: G02B,G03B

Claim Text:
1. A projector, comprising: an image ray generator generating image rays; and a projecting lens receiving the image rays from the image ray generator and projecting the image rays onto a screen, wherein the projecting lens includes a projection optical system and a relay optical system which is closer to the image ray generator than the projection optical system; wherein the relay optical system has a plurality of lenses, through which the image rays from the image ray generator pass to the projection optical system; wherein the projection optical system includes a lens group and a reflector, and the lens group is between the relay optical system and the reflector; the lens group includes at least one lens, and has a first optical side facing the relay optical system and a second optical side facing the reflector; wherein the image rays enter the lens group through the first optical side and leave through the second optical side, and then the image rays is reflected by the reflector to enter the lens group again through the second optical side; the image rays are projected onto the screen after leaving the lens group through the first optical side.