Reflector Cross-Wave Pattern for LED Lighting Compensation
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Solution Overview
Problem
LED lamps with discontinuous chip mounting exhibit unstable chip configurations, leading to incomplete lighting characteristics and color separation phenomena, resulting in low energy efficiency and high costs, making them inadequate replacements for traditional MR lamps.
Innovation Solution
A reflector with a trigonometric cross-wave pattern on its inner wall, coupled with an aspheric lens, is designed to compensate for the unstable chip configuration and incomplete lighting characteristics of LED packages, improving light distribution and removing color separation issues while maintaining a low cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If discontinuous chip mounting is used in LED packages, then manufacturing cost is reduced and production efficiency is improved, but lighting characteristic completeness deteriorates and color separation occurs
Solution Approach 1:
The reflector applies different reflection characteristics to different regions. The first reflection pattern has a first reflection coefficient and the second reflection pattern has a second reflection coefficient, creating local quality differences that compensate for the unstable chip configuration and incomplete lighting characteristics of the LED package
Solution Approach 2:
The reflector employs asymmetric reflection patterns with different coefficients in different regions, matching the asymmetric and unstable chip arrangement. This asymmetric design compensates for the discontinuous chip mounting by creating corresponding asymmetric light distribution to achieve uniform overall illumination
2Use of energy by moving object
If LED package power is increased to improve energy efficiency, then lighting output improves, but cost increases and heat dissipation problems worsen
Solution Approach 1:
The reflector changes the optical parameters by providing different reflection coefficients in different regions. This parameter modification optimizes light extraction and distribution without increasing the LED package power, thereby improving energy efficiency while avoiding heat dissipation problems associated with higher power operation
3Ease of manufacture
If uniform reflection is used in the reflector, then manufacturing is simple, but lighting characteristic compensation is insufficient
Solution Approach 1:
The reflector transitions from uniform to non-uniform reflection by providing different reflection coefficients in different regions. The first and second reflection patterns create localized optical properties that specifically compensate for the unstable chip configuration while maintaining manufacturability through patterned structures
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 enhances the lighting efficiency of LED lamps, removes color separation and yellow patterns, and allows for broader application in lighting scenarios such as vehicle headlights, stadium spotlights, and harbor lights, while being cost-effective.
Implementation Method 1
a reflector having a reflection pattern for compensating for lighting characteristics of an LED package... the inner wall of the body is formed with a trigonometric cross-wave pattern part which is patterned such that sine wave-type waves curved to form peaks and valleys are arranged to cross in a horizontal direction and a vertical direction
Implementation Method 2
coupled with an aspheric lens, is designed to compensate for the unstable chip configuration and incomplete lighting characteristics of LED packages, improving light distribution
Data Source
AI summary
A reflector having a reflection pattern for compensating for a lighting characteristic of an LED package includes a body configured to be matched and coupled with the LED package having a discontinuous chip arrangement structure to improve the lighting characteristic of the LED package for divergent light. The body includes an inner wall having a diameter which is increased upwardly to form a narrow bottom and a wide top and including an opening formed at a lower end thereof so as to arrange the LED package therein. The inner wall of the body is formed with a trigonometric cross-wave pattern part which is patterned such that sine wave-type waves curved to form peaks and valleys are arranged to cross in a horizontal direction and a vertical direction at predetermined intervals over the whole area. The reflection pattern can compensates for an incomplete lighting characteristic of an LED package itself.