MULTI-FOCUS HEADS-UP DISPLAY USING SINGLE PICTURE GENERATOR UNIT
First Claim
1. A method for creating multiple different heads-up display images at different apparent distances from a viewer, comprising:
- generating a first image using a first subset of modulating elements of an array of image pixel modulating elements of a spatial light modulator;
generating a second image using a second subset of modulating elements of the array of image pixel modulating elements of the spatial light modulator;
directing light from the first image along a first optical path onto a transparent display surface to form a first virtual image at a first apparent distance within a field of view of a viewer looking through the display surface;
directing light from the second image along a second optical path, shorter than the first optical path, onto the transparent display surface to form a second virtual image at a second apparent distance within the field of view of the viewer looking through the display surface.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are described for creating multiple different heads-up display (HUD) images at different apparent distances from a viewer using a single picture generator. First and second images are generated using respective first and second subsets of modulating elements of an array of image pixel modulating elements of a spatial light modulator. Light from the first and second images is directed along respective first and second optical paths onto a transparent display surface to form respective first and second virtual images at different apparent distances within a field of view of a viewer looking through the display surface. In a described example, the modulating elements are micromirrors of a digital micromirror device (DMD) and optical elements of the respective optical paths are relatively movable to set relative path lengths.
47 Citations
20 Claims
-
1. A method for creating multiple different heads-up display images at different apparent distances from a viewer, comprising:
-
generating a first image using a first subset of modulating elements of an array of image pixel modulating elements of a spatial light modulator; generating a second image using a second subset of modulating elements of the array of image pixel modulating elements of the spatial light modulator; directing light from the first image along a first optical path onto a transparent display surface to form a first virtual image at a first apparent distance within a field of view of a viewer looking through the display surface; directing light from the second image along a second optical path, shorter than the first optical path, onto the transparent display surface to form a second virtual image at a second apparent distance within the field of view of the viewer looking through the display surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A system for creating multiple different heads-up display images at different apparent distances from a viewer, comprising:
-
a spatial light modulator having an array of image pixel modulating elements configured for generating a first image using a first subset of the modulating elements, and for generating a second image using a second subset of the modulating elements. first optical elements defining a first optical path configured for directing light from the first image onto a transparent display surface to form a first virtual image at a first apparent distance within a field of view of a viewer looking through the display surface; second optical elements defining a second optical path, shorter than the first optical path, configured for directing light from the second image onto the transparent display surface to form a second virtual image at a second apparent distance within the field of view of the viewer looking through the display surface. - View Dependent Claims (20)
-
Specification