Apple inc. (20240201500). Displays Having Progressive Lenses simplified abstract
Contents
Displays Having Progressive Lenses
Organization Name
Inventor(s)
Kevin A. Keilbach of Boulder CO (US)
Barbara J. Kruse of San Francisco CA (US)
Vikrant Bhakta of Santa Clara CA (US)
Hyungryul Choi of San Jose CA (US)
Displays Having Progressive Lenses - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240201500 titled 'Displays Having Progressive Lenses
The patent application describes a display system with a waveguide directing image light to an eye box within a field of view.
- First lens transmits world light to the waveguide.
- Second lens transmits world light and image light to the eye box.
- Lenses have regions with different optical powers and astigmatism characteristics.
- Second region of lenses is shifted downwards in elevation angle.
- Corridor with gradient optical power and constant astigmatism is elongated.
- Blending regions with variable astigmatism are placed away from the field of view.
- Potential Applications:**
- Augmented reality displays - Virtual reality headsets - Heads-up displays in vehicles
- Problems Solved:**
- Minimizing astigmatism in image light - Improving optical performance in displays
- Benefits:**
- Enhanced image quality - Reduced eye strain for users
- Commercial Applications:**
- Consumer electronics industry for AR/VR devices - Automotive industry for HUD systems
- Prior Art:**
Prior art related to this technology can be found in patents and research papers on waveguide displays and optical lens design.
- Frequently Updated Research:**
Ongoing research in the field of waveguide displays and optical lens design may provide further insights into improving display systems.
- Questions about the Technology:**
1. How does the shifting of the second region of lenses impact the overall optical performance? 2. What are the specific advantages of the elongated corridor with gradient optical power in the lenses?
Original Abstract Submitted
a display may include a waveguide that directs image light towards an eye box within a field of view (fov). a first lens may transmit world light to the waveguide and a second lens may transmit the world light and the image light to the eye box. one or more surfaces of the first and second lenses may collectively have a first region with a first optical power, a second region with a second optical power, a corridor with gradient optical power and constant astigmatism, and blending regions with variable astigmatism. the second region may be shifted downwards in elevation angle, the corridor may be elongated, and/or the blending regions may be disposed away from the fov to prevent the blending regions from introducing astigmatism to the image light at the eye box.
