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US 6,798,720 B2Granted
Projection alarm clock
OwnerRolf Wilhelm Haupt, Fritz Schäffelinventors
Life of this patent
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Abstract
The invention relates to a novel design for a projection alarm clock for displaying various values by means of projection, using a projector with one optical unit and one optoelectrical unit for producing the images of the data to be projected.
Claims6
A projection apparatus for a projection alarm clock for displaying various clock values by means of projection, comprising:
- a projector with one optical projection system;
- an optoelectrical unit for producing the images of the clock data to be projected;
- wherein the optoelectrical unit comprises at least one LCD displaying at least two images of the clock data, such that the at least two images created by the LCD are projected simultaneously in a different axis of projection to form a composite projected image.
Dependencies are inferred from the claim text.