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US 10,896,491 B2Granted
Device and method for projecting an image
OwnerNicolas Abele, Lucio Kilcherinventors
Life of this patent
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Abstract
A device and method are provided for projecting a portion of an image, which is to be projected on to a display area, with improved brightness. A projector may be configured such that it projects over a portion of the display area. A signal which defines the pixels of the image may be modified to provide a signal which defines pixels of only a portion of the image.
Claims13
A method of projecting an image over a display area, the method comprising:
- dividing the image to be projected into at least a first part having a first set of pixels and a second part having a second set of pixels;
- producing modulated light by modulating a received light to define only the first set of pixels of the first part of the image;
- and
- scanning the modulated light by a first scan mirror and a second scan mirror over the display area, the scanning comprising adjusting a first amplitude of a first actuation signal that actuates oscillation of the first scan mirror in a first direction and adjusting a second amplitude of a second actuation signal that actuates oscillation of the second scan mirror in a second direction in order to limit scanning of the modulated light to a reduced area of the display area.
1 more element
A projection device comprising:
- a component configured to receive light from at least one light source and to output modulated light;
- a first scan mirror configured to oscillate about a first oscillatory axis, responsive to a first actuation signal having a first amplitude;
- a second scan mirror configured to oscillate about a second oscillatory axis, responsive to a second actuation signal having a second amplitude;
- and
- a processor configured to:
- divide an image to be projected onto a display area into a first part that includes a first set of pixels of the image and a second part that includes a second set of pixels of the image,
- produce the modulated light by causing the light received by the component to be modulated to define only the first set of pixels of the first part of the image, and
- cause the modulated light to be scanned over the display area by the first scan mirror and the second scan mirror, while adjusting the first amplitude and the second amplitude in order to limit scanning of the modulated light to a reduced area of the display area.
5 more elements
Dependencies are inferred from the claim text.