18466723. Display Systems With Optical Sensing simplified abstract (Apple Inc.)
Contents
Display Systems With Optical Sensing
Organization Name
Inventor(s)
Yoshihiko Yokoyama of Katta-gun (JP)
John N. Border of Campbell CA (US)
Naoto Matsuyuki of Kasugai-shi (JP)
Serhan O. Isikman of Redwood City CA (US)
Wei-Liang Hsu of San Jose CA (US)
Display Systems With Optical Sensing - A simplified explanation of the abstract
This abstract first appeared for US patent application 18466723 titled 'Display Systems With Optical Sensing
Simplified Explanation
The patent application describes a head-mounted device with special lenses that can track a user's eyes and perform other functions. The lenses include mirrors, quarter wave plates, and polarizers. The device also has an optical system with infrared light-emitting and sensing devices. The polarizers are made of conductive lines that enhance infrared transmission, and the quarter wave plates are made of cholesteric liquid crystal layers that work at visible wavelengths but not at infrared wavelengths.
- The head-mounted device has catadioptric lenses with mirrors, quarter wave plates, and polarizers.
- The optical system includes infrared light-emitting and sensing devices.
- The lenses illuminate the user's eyes and gather measurements for eye tracking.
- The polarizers are wire grid polarizers made of conductive lines that improve infrared transmission.
- The quarter wave plates are made of cholesteric liquid crystal layers that work at visible wavelengths but not at infrared wavelengths.
Potential Applications
- Eye tracking technology for virtual reality or augmented reality applications.
- Biometric authentication systems that use eye measurements for identification.
- Medical applications for monitoring eye movements and detecting abnormalities.
Problems Solved
- Enhances the performance of the optical system in the head-mounted device.
- Improves the accuracy and reliability of eye tracking measurements.
- Provides a more efficient and effective way to gather eye-related data.
Benefits
- Higher quality eye tracking and measurement capabilities.
- Improved user experience in virtual reality or augmented reality environments.
- Enhanced security and accuracy in biometric authentication systems.
- Potential advancements in medical diagnostics and treatments related to eye movements.
Original Abstract Submitted
A head-mounted device may have catadioptric lenses that each include a partial mirror, a quarter wave plate, and a polarizer. An optical system in the head-mounted device may have an infrared light-emitting device and an infrared light-sensing device. The optical system may illuminate a user's eyes in eye boxes and may gather measurements from the illuminated eye boxes for eye tracking and other functions. The optical system may operate through the catadioptric lenses. To enhance optical system performance, the polarizers may be wire grid polarizers that are formed from conductive lines that exhibit enhanced infrared transmission and/or the quarter wave plates may be formed from cholesteric liquid crystal layers that serve as quarter wave plates at visible wavelengths and that do not serve as quarter wave plates at infrared wavelengths.
