Patent ID: 9684231
Date: 2017-06-20
CPC Classifications: G02B,G03B

Claim:
1. A projector comprising: at least one light source for emitting at least one light beam; a light combination assembly disposed at a transmission path of the light beam for transferring the light beam to an illumination beam; a light-shape adjusting element disposed in the light combination assembly and located at the transmission path of the light beam for adjusting a light shape of the light beam, wherein the light shape of the light beam is adjusted to be an elliptical shape by the light-shape adjusting element, wherein the light-shape adjusting element is a biconic surface lens; an illuminating assembly disposed at a transmission path of the illumination beam and comprising a lens array and a light valve, wherein the light-shape adjusting element is located between the light source and the lens array, the illumination beam propagates to the lens array and the light valve and is transferred to an image beam by the light valve, and a pupil diagram of the image beam is elliptical shape; and an imaging assembly disposed at a transmission path of the image beam for projecting the image beam.