Patent ID: 9429765
Filing Date: 2016-08-30
CPC Classification: G02B,G03B,H04N

Claim Text:
1. An image projection apparatus comprising: a light source configured to generate a light bundle; a lens assembly; and a display element configured to form an image using the light bundle, the lens assembly being provided in a path of the light bundle between the light source and the display element, wherein the lens assembly includes a plurality of lenses provided to advance the light bundle toward the display element and including a concave lens and at least one convex lens, and a polarizing optical device provided between the plurality of lenses to convert the light bundle into polarized light for producing stereoscopic images, wherein the plurality of lenses are disposed to form a stop, and the concave lens is provided on the path of the light bundle prior to the stop, wherein the polarizing optical device is located at a position corresponding to the stop, and wherein at least one of the convex lens is disposed between the concave lens and the polarizing optical device.