Projector and method of correcting projected image distortion

Details Projector and method of correcting projected image distortion Projector and method of correcting projected image distortion

2007-04-17

2007-04-17

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Distortion compensation

C353S070000, C348S745000

Reexamination Certificate

active

10962619

ABSTRACT:
A projector has a distortion correcting circuit for correcting a distorted quadrangular projected image, which is projected onto a projection surface along a projection optical axis inclined in at least one of leftward, rightward, upward, and downward directions, into a rectangular corrected image, such that one of the vertexes B, D on the opposite ends of either one of two diagonal lines of the rectangular corrected image is positioned on one side La of the outer edge of a projection range of the projected image and the other vertex on another side Lb that is positioned adjacent to the one side La.

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patent: 2001-83949 (2001-03-01), None
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patent: 2004-260785 (2004-09-01), None

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