Head-Wearable Display Light Scanning for Enhanced Visual Acuity
Find Innovative SolutionsGenerate Solutions
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 normal human capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional prescription eyeglasses are used for vision correction, then vision impairment can be corrected, but visual acuity cannot exceed normal human vision capability
Solution Approach 1:
The patent replaces traditional optical correction mechanisms (lenses in eyeglasses) with a light signal scanning system that projects digital images directly onto the retina. This substitution enables vision enhancement beyond natural limits by using electronic control to manipulate light patterns, achieving visual acuity greater than 10 while bypassing the physical constraints of human eye anatomy.
2Measurement precision
If light signal scanning technology is used to enhance visual acuity beyond normal human vision, then vision capability is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the image formation process from traditional optical systems and implements it through a focused light signal scanning mechanism. By concentrating the essential function of image projection onto a simplified scanning system with controllable light sources and directional modifiers, the complexity is reduced while maintaining the capability to generate high-resolution retinal images for enhanced visual acuity.
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 patent creates a digital copy of the visual scene and projects it directly onto the retina through light signal scanning. This copying approach reconstructs the visual information in a format that the retina can process, effectively bypassing damaged optical components of the eye. The system restores near-normal visual function by presenting processed image data directly to functional retinal tissue, enabling full participation in daily activities.
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 individuals with impairments and healthy individuals, providing higher than 20/20 vision and replacing traditional eyeglasses for vision correction, suitable for various professional and recreational uses.
Implementation Method 1
The light emitter may comprise a red laser diode, a green laser diode, and a blue laser diode
Implementation Method 2
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, making the plurality of first-eye light signals from the first light emitter collimated
Implementation Method 3
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 4
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 to create an image frame within a period of time
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
Figure 1
Figure 2
Figure 3
AI summary
A head wearable display system comprising a target object detection module receiving a plurality of image pixels of a first portion and a second portion of a target object, and corresponding depths of the first portion and the second portion; a first light emitter emitting a plurality of first-eye light signals to display a first-eye virtual image of the first portion and the second portion of the target object for a viewer; a first light direction modifier for respectively varying a light direction of each of the plurality of first-eye light signals emitted from the first light emitter; a first collimator, disposed between the first light emitter and the first light direction modifier, to adjust 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; a first focusing element, 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; and a first combiner, for redirecting and converging the plurality of first-eye light signals towards the first eye of the viewer. The first-eye virtual image of the first portion of the target object in a first field of view has a greater number of the plurality of first-eye light signals per degree than that of the first-eye virtual image of the second portion of the target object in a second field of view.