Linear Light Strip Lens for Glare Elimination
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Solution Overview
Problem
Existing linear light source lamps suffer from glare, reflection glare, and uneven lighting due to diffused light with non-uniform direction, resulting in a messy and dim image, and often require increased volume or number of LED particles to achieve a linear effect, increasing production costs.
Innovation Solution
A linear light source strip lamp design featuring a strip-shaped light frame with light-emitting chips, a strip lens including a light entrance, emission, and total reflection areas, and a convex lens array to create a linear light source effect, along with a lampshade that incorporates a light diffusion area to address light leakage and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If point light sources are used for LED lighting, then high light extraction efficiency is achieved, but glare and reflection glare occur
Solution Approach 1:
The patent segments the point light source into multiple light-emitting chips arranged in a linear array. Each chip emits light that is individually controlled and directed, transforming the single point source into a distributed linear source that reduces glare while maintaining energy efficiency.
Solution Approach 2:
The patent applies different optical properties to different regions of the lighting system. The lens structure has varying refraction rates in different areas, with the center region having a different refraction rate than the edge regions, creating localized light control zones that eliminate glare while preserving overall efficiency.
2Area of stationary object
If light is diffused in multiple directions, then light coverage is improved, but the linear light source image becomes messy and blurred
Solution Approach 1:
The lens structure implements spatially varying optical properties where the center region and edge regions have different refraction rates. This local differentiation allows light to be diffused in multiple directions for coverage while maintaining a clear, non-blurred linear light source image through precise regional control.
Solution Approach 2:
The patent changes the optical parameter (refraction rate) of the lens material in different spatial regions. By varying the refraction rate from center to edge, the system achieves both wide light coverage and precise image control, preventing the linear light source from appearing messy or blurred.
3Illumination intensity
If more LED lamp particles are used to achieve linear light source effect, then lighting performance is improved, but production cost increases
Solution Approach 1:
The patent designs a lens structure that performs multiple functions simultaneously: it focuses light from each LED chip, controls the beam angle, creates the linear light source effect, and eliminates glare. This multi-functionality is achieved through a single integrated lens design rather than requiring multiple separate components or additional LED particles, thereby reducing production cost while maintaining lighting performance.
4Manufacturing precision
If a precise mold is used for injection molding the lens, then light control precision is improved, but light leakage occurs due to molding imperfections
Solution Approach 1:
The patent addresses light leakage by applying different surface treatments to different regions of the lens. The inner wall of the lens has a light diffusion treatment applied selectively, while other regions maintain their precise molded surfaces for light control. This local differentiation resolves the contradiction between precision molding and light leakage prevention.
Solution Approach 2:
The patent converts the potential harm of light leakage into a beneficial light diffusion effect. By intentionally adding a light diffusion treatment on the inner wall, the previously harmful light leakage is transformed into controlled light scattering that improves uniformity and reduces glare, turning a manufacturing imperfection into a functional advantage.
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 provides precise light control and uniform illumination without increasing production costs, enhancing the linear light source effect and eliminating glare and uneven lighting issues.
Implementation Method 1
a first convex lens array arranged along the length direction is arranged on the light-emitting area, the first convex lens array presents an image of stretching the light-emitting chips along the length direction
Implementation Method 2
the strip lens includes a light entrance area, a light-emitting area, and a total reflection area
Implementation Method 3
The light strip is provided with a light diffusion area at least partially covering the total reflection area
Data Source
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AI summary
This embodiment discloses a linear light source strip lamp, comprising: a strip-shaped light frame; a strip circuit board arranged on the strip-shaped light frame, and light-emitting chips arranged at intervals along the length direction on the front; a strip lens , arranged in the light-emitting direction of the light-emitting chip, the strip lens includes a light-entry area, a light-emitting area, and a total reflection area, and the light-emitting area is provided with a first convex lens array arranged along the length direction, the first convex lens array stretches the light-emitting chips along the length direction so that adjacent light-emitting chips are connected to each other to form a linear light source effect; the strip-shaped lampshade is arranged on the strip-shaped lamp holder and is located outside the strip-shaped lens; the strip-shaped lampshade A shaped lampshade is provided with said light diffusion area at least partially covering said total reflection area.