18150982. WEARABLE HEADS-UP DISPLAY WITH OPTICAL PATH FAULT DETECTION simplified abstract (Google LLC)
WEARABLE HEADS-UP DISPLAY WITH OPTICAL PATH FAULT DETECTION
Organization Name
Inventor(s)
Stuart James Myron Nicholson of Waterloo (CA)
Timothy Paul Bodiya of Toronto (CA)
WEARABLE HEADS-UP DISPLAY WITH OPTICAL PATH FAULT DETECTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18150982 titled 'WEARABLE HEADS-UP DISPLAY WITH OPTICAL PATH FAULT DETECTION
Simplified Explanation
The abstract describes a wearable heads-up display that includes a power source, laser sources, and a lightguide. It also mentions a photodetector positioned to detect the intensity of a test light emitted from the lightguide and a laser safety circuit that controls the power supply to the laser sources based on the output signal from the photodetector.
- The wearable heads-up display includes a power source, laser sources, and a lightguide.
- A photodetector is used to detect the intensity of a test light emitted from the lightguide.
- A laser safety circuit is implemented to control the power supply to the laser sources.
- The laser safety circuit reduces or shuts off the power supply if the detected intensity is below a threshold.
Potential Applications
- Augmented reality devices
- Virtual reality headsets
- Heads-up displays in vehicles
- Medical imaging devices
Problems Solved
- Ensures laser safety by monitoring the intensity of emitted light
- Prevents potential harm to the user's eyes from laser sources
Benefits
- Enhanced safety for users by controlling laser power supply
- Enables reliable and accurate detection of low light intensity
- Can be applied to various wearable display devices
Original Abstract Submitted
A wearable heads-up display includes a power source, laser sources, and a lightguide. A photodetector is positioned to detect an intensity of a test light emitted at a perimeter of the lightguide from an optical path within the lightguide. A laser safety circuit provides a control to reduce or shut off a supply of electrical power from the power source to the laser sources in response to an output signal from the photodetector indicating that the detected intensity is below a threshold.