Head-Wearable Display Light Scanning for Enhanced Visual Acuity
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Solution Overview
Problem
Existing vision capabilities are limited by human eye anatomy, and machine vision solutions do not provide enhanced visual acuity beyond normal human vision, particularly for individuals with impairments or disabilities.
Innovation Solution
A head wearable display system using light signal scanning technology, comprising a target object detection module, light emitters, direction modifiers, collimators, and combiners, to project high-resolution, 3-dimensional digital images with depth perception, enhancing visual acuity beyond 1.0.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional prescription eyeglasses are used for vision correction, then vision impairment can be partially corrected, but visual acuity cannot exceed normal human vision capability
Solution Approach 1:
The patent replaces traditional optical correction systems with a light signal scanning system that uses electronic control to project images directly onto the retina. This substitution enables vision enhancement beyond normal human capability by using controlled light projection rather than passive optical correction.
Solution Approach 2:
The system changes the fundamental parameter of light delivery by using scanning light signals that can be precisely controlled in intensity, position, and timing. This allows dynamic adjustment of visual information delivery to achieve visual acuity greater than 1.0, unlike fixed optical parameters of traditional eyeglasses.
2Measurement precision
If light signal scanning technology is used to enhance visual acuity beyond normal vision, then vision capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the essential function of vision correction from complex optical systems and reduces it to a light signal scanning mechanism that projects images directly onto the retina. This extraction simplifies the core functionality while maintaining the ability to enhance visual acuity.
Solution Approach 2:
The system introduces a light direction modifier as an intermediary component that controls the scanning light signals. This mediator enables precise control of light delivery to the retina, achieving enhanced visual acuity while managing system complexity through a dedicated control element.
3Reliability
If machine vision is applied to aid patients with vision impairment, then partial vision repair is achieved, but normal life functionality is not fully restored
Solution Approach 1:
The system provides self-service vision enhancement by directly projecting corrected visual information onto the user's retina, eliminating the need for complex external aids or adjustments. This enables users to independently achieve normal or enhanced vision for daily activities.
Solution Approach 2:
The light signal scanning system serves multiple functions including vision correction, vision enhancement, and potential diagnostic capabilities. This multi-functionality restores full life functionality by addressing various visual needs within a single system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables improved vision for both healthy individuals and those with impairments, providing clear images with multiple depth perception and potentially replacing traditional eyeglasses for vision correction, suitable for various professional and recreational uses.
Implementation Method 1
The first light emitter is used for emitting a plurality of first-eye light signals related to the target object
Implementation Method 2
The light direction may be varied with respect to time in a plurality of spatial dimensions such that an image is created via the cyclical scanning motion of the first light direction modifier
Implementation Method 3
The first collimator may be disposed between the first light emitter and the first light direction modifier for adjusting a beam waist location of each of the plurality of first-eye light signals so that the plurality of first-eye light signals being separable from each other
Implementation Method 4
The first focusing element is disposed between the first collimator and the first light direction modifier to adjust a beam waist size of each of the plurality of first-eye light signals, so as to adjust spot sizes of the plurality of first-eye light signals on a first eye of the viewer
Implementation Method 5
The first combiner is used for redirecting and converging the plurality of first-eye light signals towards the first eye of the viewer
Data Source
AI summary
A head wearable display system includes a target object detection module receiving image pixels of two portions of a target object and corresponding depths; a first light emitter emitting first-eye light signals to display a first-eye virtual image of the two portions; a first light direction modifier for varying a light direction of each first-eye light signal; a first collimator between the first light emitter and the first light direction modifier, to adjust a beam waist location of each first-eye light signal so that the first-eye light signals are mutually separable; a first focusing element between the first collimator and the first light direction modifier, to adjust a beam waist size of each first-eye light signal, so as to adjust spot sizes of the first-eye light signals on a first eye of a viewer; and a first combiner, for redirecting and converging the first-eye light signals towards the first eye.