Invention:
This invention uses a lightguide as an optical combiner to integrate illumination, fixation, and imaging optics into a single platform and create a wearable, lightweight optical system for measuring optical aberrations in the human eye. By using diffractive or geometric couplers, the invention allows ocular wavefronts to be measured at the same time while keeping the device lightweight and suitable for wearable use, making it useful for diagnostic equipment, eye testing, and augmented or virtual reality head-mounted displays.
Background:
Many existing vision diagnostics are limited to taking static snapshots of the eye and cannot capture real-world fluctuations in ocular aberrations that are caused by factors such as pupil size changes, tear film instability, and fatigue. Standard aberrometers offer high precision but require bulky hardware and stationary patients. This technology aims to overcome these constraints by embedding a wavefront sensor directly into a wearable optical lightguide, allowing for continuous measurement of higher-order aberrations.
Applications:
- Diagnostic instruments
- Ophthalmic testing
- Augmenter and virtual reality head-mounted displays
- Optical aberration measurement
Advantages:
- Mitigates vergence-accommodation conflict
- High-precision detection
- Lightweight
- Wearable
- Simultaneous measurements of ocular wavefronts
