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US 7,090,354 B2Granted
Projection device and screen
AssigneeInFocus Corporation
InventorsT. Scott Engle, Jeffrey A. Gohman
Life of this patent
Estimating the term…
Abstract
A projection unit is provided. The projection unit may include a projector having a wide-angle lens system. The projector may be positioned substantially adjacent a display surface and may be configured to generate an image on the display surface. The projection unit further may include a moveable element supporting the projector configured to enable selective lateral positioning of the projector.
Claims32
A projection unit comprising:
- a projector including a wide-angle lens system, the projector positioned substantially adjacent a display surface and configured to generate an image on the display surface;
- and
- a moveable element supporting the projector configured to enable selective lateral positioning of the projector;
- wherein the projector further comprises a focus device adapted to bring the image into focus when the projector is in one of a first lateral position and a second lateral position.
1 more element
A projection unit comprising:
- a body, wherein the body comprises
- a selectively-positionable screen to display an image, the screen positionable in a first position and a second position;
- and
- a laterally-moveable projector positioned substantially adjacent the screen and configured to project an image to the screen, the laterally-moveable projector further adapted to be positioned in first lateral position and a second lateral position;
- wherein the first lateral position of the projector and second lateral position of the projector are operable positions.
2 more elements
A system comprising:
- a moveable screen;
- and
- a front projector slidably coupled to said movable screen, said front projector including a lens system having at least two folds and projecting an image onto said moveable screen at an angle of at least 30 degrees;
- wherein the lens system creates the at least two folds via first prism and a second prism.
1 more element
Dependencies are inferred from the claim text.