Faceted Optical Design System for Light Distribution
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Solution Overview
Problem
Traditional optical computer-aided design systems face complexity and time-consuming processes when tailoring surfaces to achieve desired light distributions, often requiring numerous iterations and being computationally intensive.
Innovation Solution
An optical design system that iteratively improves faceted optical designs by adjusting facet sizes and increasing the number of facets until the desired light distribution is met, using source-target mapping and resampling to refine the design, allowing for the creation of both reflective and refractive elements that direct light efficiently across multiple target points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional methods are used to tailor optical surfaces, then the desired light distribution can be achieved, but the design process becomes complicated, computationally intensive, and time-consuming
Solution Approach 1:
The optical surface is segmented into multiple discrete facets, each capable of independently directing light to specific target points. This segmentation transforms the continuous surface tailoring problem into a discrete optimization problem, reducing computational complexity while maintaining light distribution accuracy
Solution Approach 2:
The invention changes the design parameters from continuous surface parameters to discrete facet parameters (position, orientation, size). This parameter transformation enables more efficient computation and optimization, reducing the time and complexity required to achieve desired light distributions
2Manufacturing precision
If traditional iterative design methods are used, then the desired light distribution can be achieved, but the process requires numerous iterations and is time-consuming
Solution Approach 1:
The system performs preliminary actions by pre-calculating and storing facet configurations that achieve specific light distributions. This allows rapid retrieval and adaptation of optimized designs without requiring time-consuming iterative optimization from scratch, significantly reducing design time while maintaining accuracy
Solution Approach 2:
The invention uses copying by creating a library of pre-optimized facet configurations that can be replicated and adapted. This allows rapid generation of designs for different light distribution requirements without reperforming complex optimization calculations, reducing time loss while maintaining manufacturing precision
3Manufacturing precision
If the number of facets is increased to improve light distribution accuracy, then the design meets more stringent requirements, but the computational complexity increases quadratically
Solution Approach 1:
The invention replaces traditional mechanical iterative optimization systems with a computational library-based approach. Pre-calculated facet configurations are stored and retrieved, substituting the need for repeated complex computational optimization. This reduces computational complexity from quadratic to linear or constant time, improving productivity while maintaining high light distribution accuracy through increased facet count
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
This approach significantly reduces computational time and complexity, enabling the design of optical elements that accurately match specified light distributions with a linear dependence on the number of facets, rather than a quadratic dependence, thus improving design efficiency and accuracy.
Implementation Method 1
For reflective designs, the facets are typically ellipsoids
Implementation Method 2
For refractive designs, the facets are typically Cartesian ovals
Data Source
AI summary
An optical design system is used to design a light shaping element that directs light from a specified source to a specified light distribution. The process includes designing related faceted optical devices (reflective or refractive) such that light from a common source point is distributed across multiple target points.