SYSTEM AND METHOD FOR RECONFIGURABLE PROJECTED AUGMENTED/VIRTUAL REALITY APPLIANCE
First Claim
Patent Images
1. A head mounted display comprising:
- a headset or glasses frame supporting one or more image projectors;
said projectors mounted closely above or below the vertical pupil center line;
one or more retroreflective surfaces;
said surfaces returning projected images to said headset;
a filtering means to reduce the brightness of unwanted images originating from said projectors mounted on opposite sides of said headset.
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Accused Products
Abstract
A system comprising a head mounted display with sight line tracking is presented with an attachment for reconfiguration from projected augmented reality applications to those using closed virtual reality as well as mixed modes.
42 Citations
20 Claims
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1. A head mounted display comprising:
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a headset or glasses frame supporting one or more image projectors; said projectors mounted closely above or below the vertical pupil center line; one or more retroreflective surfaces; said surfaces returning projected images to said headset; a filtering means to reduce the brightness of unwanted images originating from said projectors mounted on opposite sides of said headset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a projection augmented reality headset or glasses; a removable attachment; said attachment mountable to one side or both sides of the front of said headset; said attachment incorporating means to reconfigure operation of said headset to that of a near eye display system. - View Dependent Claims (13, 14, 15, 16)
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17. A method for displaying augmented reality comprising the steps:
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projecting images from one or more head mounted image projectors; reflecting said images back to said headset by means of one or more retroreflective surfaces; filtering said reflected images by means selected from the set of time sequencing, polarization, spectral usage or spatial brightness pattern; passing filtered images to selected user eyes.
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18. A method for displaying virtual reality comprising the steps:
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providing a head mounted projected augmented reality appliance; attaching an optical apparatus to said appliance; said apparatus redirecting projected images into near eye mode.
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19. A method for switching the mode of operation of a head mounted display comprising the steps:
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nodding of head causing the lowering of an optics apparatus without use of hands; said apparatus redirecting projected images into near eye mode.
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20. A method for tracking the sight line of a head mounted display comprising the steps:
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imaging an asymmetric pattern of five or more infrared light emitting diodes with one or more high resolution electronic cameras; fixing said pattern of emitters in position with respect to a world position; modulating a diode among said emitters having unique position in the pattern with a unique identification code number; encoding said modulation so as to enable demodulation by image processing of the signal from said imaging cameras; extracting said unique identification code number from said demodulation; looking up stored reference size and shape information related to said identification number; solving for sight line coordinates by analyzing the image from said imaging cameras against the stored size and shape of said reference pattern.
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Specification