Projection-type image display apparatus

Details Projection-type image display apparatus Projection-type image display apparatus

2011-02-07

2011-12-13

Dowling, William C (Department: 2878)

Optics: image projectors

Structurally related projector and screen

C353S070000, C353S098000, C353S046000

Reexamination Certificate

active

08075142

ABSTRACT:
A projection-type image display apparatus includes an enlarging projection optical unit which is configured to project an image displayed on an image display element enlargedly upon a display portion, a display controller portion which is configured to move a position of the image within a display surface of the image display element. The enlarging projection optical unit has a lens group for projecting the image enlargedly, wherein the display controller portion moves the image so as to display the image within the display surface of the image display element by projecting a portion selectively fitted to the display portion when displaying on the display portion through the enlarging projection optical unit.

REFERENCES:
patent: 7413312 (2008-08-01), Engle et al.
patent: 7670009 (2010-03-01), Hirata et al.
patent: 2008/0074623 (2008-03-01), Odagiri et al.
patent: 2008/0137040 (2008-06-01), Rodriguez et al.
patent: 2009/0015798 (2009-01-01), Unsworth
patent: 04-027912 (1992-01-01), None
patent: 2006-154720 (2006-06-01), None

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