US 9,927,611 B2Granted

Wearable laser based display method and system

AssigneeSoraa Laser Diode, Inc.

InventorsPaul Rudy, James W. Raring, Eric Goutain, Hua Huang

Life of this patent

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Abstract

The present invention is directed to wearable display technologies. More specifically, various embodiments of the present invention provide wearable augmented reality glasses incorporating projection display systems where one or more laser diodes are used as light source for illustrating images with optical delivery to the eye using transparent waveguides. In one set of embodiments, the present invention provides wearable augmented reality glasses incorporating projector systems that utilize transparent waveguides and blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides wearable augmented reality glasses incorporating projection systems having digital lighting processing engines illuminated by blue and/or green laser devices with optical delivery to the eye using transparent waveguides. In one embodiment, the present invention provides wearable augmented reality glasses incorporating a 3D display system with optical delivery to the eye using transparent waveguides. There are other embodiments as well.

Claims10

Dependent claims

An apparatus configured to be worn on a human head and used for viewing images, the apparatus comprising:

a frame member configured to fit on a head of a human user;
a display region coupled to the frame member and spatially disposed to allow the human user to view the display region;
a laser diode source comprising a red laser diode, a blue laser diode, and a green laser diode mounted on a common carrier, the common carrier comprising a triangular pedestal having three sidewalls, each of the red laser diode, the blue laser diode, and the green laser diode being an edge emitting laser diode mounted on a respective sidewall of the pedestal and having a laser cavity with a length of 200 microns or less and a width of 150 microns or less, wherein at least one of the red laser diode, the blue laser diode, or the green laser diode is configured on a surface having either a non-polar or semi-polar orientation;
a wave guide structure having a first region and a second region, the first region being coupled to the display region, and the second region being coupled to the laser diode source, and configured to traverse electromagnetic radiation from the laser diode source through the wave guide structure to cause an image to be output on the display, wherein the wave guide structure is disposed above the laser diode source, and light from the laser diode structure is reflected vertically to the wave guide structure using mirrors etched in the laser diode structure.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/449,700Filed 1 Aug 2014 · us provisional application
Priority: 11 Oct 2013
Published: US 2015/0103404 A116 Apr 2015
Granted: 27 Mar 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

G02B 27/0172
Head mounted: characterised by optical features
G02B 6/00
Light guides
G02B 27/017
Head-up displays: head mounted
H01S 5/320275
Grown on specifically orientated substrates, or using orientation dependent growth: semi-polar orientation