LED Lamp Lens With Astigmatic-Convergent Optics for Glare Reduction
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Solution Overview
Problem
Existing lenses for LED lamps result in uneven light transmission with color differences and glare due to uniform focal points, failing to meet anti-glare requirements.
Innovation Solution
A lens design featuring astigmatic members and convergent light members that disperse and re-converge light to eliminate color differences and reduce glare, utilizing a housing with a first surface having astigmatic members and a second surface with convergent light members to uniformly mix and direct light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a lens with uniform convex or concave surfaces is used, then the structure is simple and easy to manufacture, but the light transmission is uneven and produces color differences and glare
Solution Approach 1:
The lens surface is segmented into multiple independent astigmatic members (e.g., 6 members arranged in two circles) rather than using a uniform convex or concave surface. Each astigmatic member independently refracts light, creating multiple focal points that mix and uniformize the light transmission, eliminating color differences and glare while maintaining manufacturing feasibility through modular assembly
Solution Approach 2:
Different regions of the lens surface are given different local properties through the astigmatic members. Each member has specific curvature characteristics tailored to its position, creating localized light refraction patterns that collectively achieve uniform light transmission. This local differentiation resolves the contradiction by allowing complex optical performance through standardized local elements
2Device complexity
If a lens with uniform focal point is used, then the optical design is simple, but it causes color differences and fails to meet anti-glare requirements
Solution Approach 1:
The single uniform focal point is segmented into multiple focal points through the arrangement of multiple astigmatic members. Each member creates its own focal region, and the superposition of these multiple focal points produces a mixed light distribution that eliminates color differences and reduces glare, achieving anti-glare requirements without excessive design complexity
Solution Approach 2:
The astigmatic members act as intermediary elements between the light source and the final light output. These members refract and redirect light rays, creating a mixing effect that eliminates harmful color differences and glare. The intermediary astigmatic members transform the simple uniform light into uniform mixed light without requiring complex overall system design
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 lens achieves uniform light transmission without color differences and reduces glare by dispersing light through astigmatic members and re-converging it through convergent members, enhancing light quality and meeting anti-glare requirements.
Implementation Method 1
A lens is an optical element made of a transparent material, which is made according to a refraction principle of light
Implementation Method 2
the plurality of convergent light members protruding outwardly from the second surface away from a side of the light source, light emitted from the light source dispersed through the plurality of astigmatic members, and then converged through the plurality of convergent light members before being directed towards the outside
Data Source
AI summary
The present disclosure provides a lens and an LED lamp thereof, the lens used in conjunction with a light source and including a housing that includes a first body and a second body, the first body including a first surface and a plurality of astigmatic members protruding from the first surface to a side of the light source, the second body including a second surface opposite to the first surface and arranged away from the light source, a plurality of convergent light members protruding outwardly from the second surface away from a side of the light source. Light emitted from the light source is dispersed through the plurality of astigmatic members, and then converged through the plurality of convergent light members before being directed towards the outside.