Patent ID: 7896507

Claim:
A projection type display apparatus, comprising: a light source for emitting a light; a first reflection portion, which is configured to reflect the light from said light source into a direction nearly perpendicular to an optical axis of said light source; an image display element, which is configured to modulate the light from said first reflection portion into an optical image; a lens group, which is made up with a plural number of lens elements, through which the light from said image display element passes; and a second reflection portion, which is configured to reflect the light from said lens group thereupon, having an asymmetric configuration to the optical axis of said light source and being so disposed that it is inclined to the optical axis of said light source at a predetermined angle, wherein the light source of the projection type display apparatus is arranged in such way that when the apparatus is in a substantially vertical disposition or when the apparatus in a substantially horizontal disposition, the optical axis of the light source remains substantially horizontal.