Google llc (20240337839). CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL simplified abstract
Contents
CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL
Organization Name
Inventor(s)
Ozan Cakmakci of San Mateo CA (US)
Oscar Alberto Martinez of San Diego CA (US)
Eliezer Glik of San Diego CA (US)
Han Zhang of Mountain View CA (US)
CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240337839 titled 'CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL
The patent application describes a head-mounted display with a unique lens design and light engine integrated into an eyeglasses frame.
- The lens features a curved lightguide with specialized surfaces for directing light, including an incoupler surface, a first freeform surface, and a second freeform surface.
- Low refractive index regions are strategically placed within the lens to optimize light transmission and reduce distortion.
- The optical shell of the lens includes conformal freeform surfaces that work in conjunction with the curved lightguide to enhance visual quality.
Potential Applications:
- Augmented reality and virtual reality headsets
- Medical devices for surgical visualization
- Heads-up displays for automotive and aviation applications
Problems Solved:
- Improved image quality and clarity in head-mounted displays
- Enhanced user experience with reduced visual fatigue
- Optimal light transmission for various applications
Benefits:
- Crisp and clear visuals for immersive experiences
- Comfortable wear for extended periods
- Versatile applications across different industries
Commercial Applications:
- Gaming and entertainment industries for VR headsets
- Healthcare sector for medical imaging devices
- Automotive and aerospace industries for heads-up displays
Questions about the technology: 1. How does the curved lightguide in the lens improve light transmission? 2. What are the specific advantages of the low refractive index regions in the lens design?
Original Abstract Submitted
a head mounted display includes an eyeglasses frame, a lens framed in the eyeglasses frame, and a light engine disposed in the eyeglasses frame. the lens includes an optical shell comprising a world-facing spherical surface and an opposing eye-facing surface and a curved lightguide disposed in the optical shell. the curved lightguide includes an incoupler surface, a first freeform surface facing the world-facing spherical surface, and a second freeform surface facing the eye-facing surface. the lens further includes a first low refractive index region disposed between the first freeform surface and a first conformal freeform surface of the optical shell and a second low refractive index region disposed between the second freeform surface and a second conformal freeform surface of the optical shell.
