Systems, devices, and methods for laser projection in wearable heads-up displays
AssigneeNorth Inc.
InventorStuart James Myron Nicholson
Life of this patent
Estimating the term…
Abstract
There is provided a wearable heads-up display (WHUD) having a laser projector to generate a display image. The display image can have a pixel having a pixel on-time. Furthermore, the laser projector can have a laser diode to emit laser light. The WHUD can also include a controller communicatively coupled to the laser diode. The controller can modulate the laser diode during the pixel on-time to be off during a laser off-time of the pixel on-time and on during a laser on-time of the pixel on-time. Moreover, the WHUD can include a holographic optical element to receive the laser light from the laser projector and redirect the laser light towards an eye of a user of the WHUD.
Claims20
A wearable heads-up display comprising:
- a laser projector to generate a display image comprising a pixel having a pixel on-time, the laser projector comprising a laser diode to emit laser light;
- a controller communicatively coupled to the laser diode, the controller communicatively coupled and operable to modulate the laser diode during the pixel on-time to be off during a laser off-time of the pixel on-time and on during a laser on-time of the pixel on-time;
- and
- a holographic optical element to receive the laser light from the laser projector and redirect the laser light towards an eye of a user of the wearable heads-up display.
The wearable heads-up display of claim 11, wherein the wearable heads-up display comprises glasses and the holographic optical element is disposed on or in a lens of the glasses.
A method of operating a wearable heads-up display, the method comprising:
- emitting laser light by a laser diode, the laser light to generate a display image comprising a pixel having a pixel on-time;
- receiving the laser light from the laser diode by a holographic optical element, the holographic optical element to redirect the laser light towards an eye of a user of the wearable heads-up display;
- and
- modulating, by a controller communicatively coupled to the laser diode, the laser diode during the pixel on-time to be off during a laser off-time of the pixel on-time and on during a laser on-time of the pixel on-time.
Dependencies are inferred from the claim text.