Retina Image Creation for Eyeglass Lens Binocular View Simulation
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Solution Overview
Problem
Existing methods for displaying binocular view performance through eyeglass lenses do not accurately represent the entire field of vision projected onto retinas, failing to encompass the comprehensive view experienced by the wearer.
Innovation Solution
An image creation device that constructs retina images based on three-dimensional information of the target scene, eyeglass lenses, and the wearer's eyeball, including corresponding point calculation and disparity correction to simulate the binocular view, allowing for the creation of composite images that accurately represent the binocular view performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing methods display binocular view performance through eyeglass lenses, then some view performance information is provided, but the entire field of vision projected onto retinas is not encompassed
Solution Approach 1:
The patent segments the image creation process into distinct functional units: a ray tracing unit that calculates light paths from object points through the eyeglass lens to the retina, and a retina image creation unit that generates the projected image. This segmentation allows comprehensive field of vision information to be captured while maintaining manageable system complexity through modular design.
Solution Approach 2:
The patent introduces a virtual eyeball model as an intermediary element between the eyeglass lens and the final image display. This virtual eyeball serves as a mediator that receives ray tracing calculations and translates them into retina-projected images, enabling complete field of vision representation without directly complicating the overall system architecture.
2Measurement precision
If ray tracing calculations are performed for accurate retina image creation, then measurement precision of binocular view is improved, but calculation complexity increases
Solution Approach 1:
The patent replaces complex physical measurement systems with computational ray tracing methods. Instead of using elaborate optical measurement equipment to capture binocular view performance, the system uses algorithmic ray tracing calculations that simulate light propagation through the eyeglass lens and virtual eyeball, achieving high measurement precision while reducing physical system complexity.
Solution Approach 2:
The patent creates a virtual copy of the human eyeball (virtual eyeball model) that replicates the optical characteristics of a real eye. This virtual copy allows accurate simulation of light paths and retina projection without requiring actual physical eye measurements, thereby improving measurement precision while simplifying the experimental setup and calculation requirements.
3Reliability
If virtual eyeball information is incorporated into the image creation process, then reliability of binocular view simulation is improved, but information processing requirements increase
Solution Approach 1:
The patent performs preliminary actions by pre-defining the virtual eyeball's optical characteristics, including the refractive indices of ocular media (cornea, aqueous humor, crystalline lens, vitreous humor) and the geometry of ocular structures. These pre-established parameters reduce the computational burden during actual image creation, as the complex eyeball optics are already characterized and can be directly applied in ray tracing calculations without requiring real-time measurement or processing of actual eye data.
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 solution effectively simulates the binocular view performance by creating accurate retina images and composite images that reflect the actual field of vision through eyeglass lenses, addressing the limitations of existing methods by incorporating detailed optical characteristics and eye shapes.
Implementation Method 1
a ray tracing unit that calculates an entry direction along which, and an entry position at which a ray of light entering the retina of the eye at each position, enters an anterior surface of a cornea of the eye and calculates a light path along which the ray of light, having departed the target scene, passes through the anterior surface of the cornea and arrives at the position in the retina
Implementation Method 2
calculates a light path along which the ray of light, having departed the target scene, passes through the anterior surface of the cornea and arrives at the position in the retina
Data Source
AI summary
An image creation device includes: a storage unit in which target scene three-dimensional information related to a position, a shape and optical characteristics of a structural object present in a virtual target scene, eyeglass lens three-dimensional information related to a position, a shape and optical characteristics of an eyeglass lens and eyeball three-dimensional information related to a position, a shape and optical characteristics of an eye of a wearer viewing the target scene through the eyeglass lens used as a virtual lens; and a retina image creation unit that creates a retina image based upon the target scene three-dimensional information, the eyeglass lens three-dimensional information and the eyeball three-dimensional information, wherein: the retina image is a virtual image projected onto a retina of the eye of the wearer viewing the target scene through the eyeglass lens.