Ergonomic head mounted display device and optical system
US-9348143-B2 · May 24, 2016 · US
Methods and system for creating focal planes in virtual and augmented reality
US9857591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9857591-B2 |
| Application number | US-201514726429-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 29, 2015 |
| Priority date | May 30, 2014 |
| Publication date | Jan 2, 2018 |
| Grant date | Jan 2, 2018 |
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Abstract
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Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.
First claim
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What is claimed is: 1. An augmented reality display system, comprising: first and second spatial light modulators operatively coupled to an image source for projecting light associated with one or more frames of image data, wherein the first spatial light modulator comprises a Digital Light Processing system that provides grayscale images and the second spatial light modulator comprises a Liquid Crystal Display that provides a color map, the combination of the Digital Light Processing system and the Liquid Crystal Display work in conjunction to create multiple depth planes; and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed, wherein the first and second spatial light modulators are disposed along a same optical path. 2. The augmented reality display system of claim 1 , wherein the first depth plane is different from the second depth plane. 3. The augmented reality display system of claim 1 , wherein the first spatial light modulator is projected toward a set of achromatic lenses. 4. The augmented reality display system of claim 3 , wherein the DLP operates at a frame rate of 360 Hz. 5. The augmented reality display system of claim 1 , wherein the VFE is a deformable mirror membrane. 6. The augmented reality display system of claim 1 , wherein the VFE varies the focus on a frame-by-frame basis. 7. The augmented reality display system of claim 1 , wherein the first spatial light modulator is a high refresh rate display. 8. The augmented reality display system of claim 1 , wherein the first depth plane and the second depth plane are perceived simultaneously. 9. The augmented reality display system of claim 1 , further comprising a set of optical elements to deliver the focused light to a user's eyes. 10. The augmented reality display system of claim 1 , wherein the one or more frames of image data comprise slices of a three-dimensional scene. 11. The augmented reality display system of claim 1 , wherein the one or more frames of image data are provided in a time-sequential manner. 12. The augmented reality display system of claim 3 , wherein the second spatial light modulator projects light through a second set of achromatic lenses. 13. The augmented reality display system of claim 1 , further comprising an accommodation tracking module to track a vergence of a user's eyes, wherein the VFE varies the focus of the projected light based at least in part on the tracked vergence. 14. The augmented reality display system of claim 1 , wherein the first depth plane corresponds to optical infinity, and the second depth plane corresponds to a depth plane closer than optical infinity.
Assignees
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Classifications
Head mounted · CPC title
Eyeglass type (eyeglass details G02C) · CPC title
with combiner of laminated type, for optical or mechanical aspects · CPC title
comprising information/image processing systems · CPC title
Eye tracking input arrangements (G06F3/015 takes precedence) · CPC title
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- What does patent US9857591B2 cover?
- Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a f…
- Who is the assignee on this patent?
- Magic Leap Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B27/0172. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 02 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).