Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

2010-06-29

2010-12-14

Pyo, Kevin (Department: 2878)

Optics: image projectors

Distortion compensation

For projection axis inclined to screen

C353S069000, C353S077000, C353S101000, C359S649000, C359S813000, C359S823000

Reexamination Certificate

active

07850313

ABSTRACT:
A projection type image display apparatus includes an image display element, a first lens group disposed in a light direction with respect to the image display element and configured to include a plurality of lenses, a second lens group disposed in a light direction with respect to the first lens group and configured to include a plurality of lenses, a reflection mirror, configured to reflect lights emitted from the first and/or second lens groups so as to project upon the screen obliquely, a first mounting base on which the first lens group is mounted, a second mounting base on which the second lens group is mounted, and a chassis configured to store the first and second lens groups, the reflection mirror, and the first and second mounting bases. The first mounting base is fixed at a bottom of the chassis, while the second mounting base is moveable.

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