Focused Strip Lamp Optics for Anti-Glare Linear Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED lamps struggle to meet anti-glare standards (UGR<19) in indoor lighting due to inefficient light utilization, glare, and difficulty in controlling illumination angles, while also causing color differences and blue light hazards.
Innovation Solution
A high-efficiency linear light source focused strip lamp with a condensing lens and convex lens array that reduces light emission angles, combined with a strip reflective portion to reuse light leakage, ensuring uniform illumination and maintaining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a grid is added in front of the panel light to block light from large angles, then anti-glare performance is improved, but light utilization efficiency deteriorates (more than half of the power is lost)
Solution Approach 1:
The patent replaces the mechanical grid blocking system with an optical lens system (condensing lens and convex lens array) that redirects and focuses light. The condensing lens collects light from LED chips and the convex lens array redistributes it to create linear light source effects while controlling glare angles, achieving anti-glare performance without the light loss associated with physical grids.
Solution Approach 2:
The patent changes the optical parameters of light distribution by using lenses with specific focal lengths and curvature radii. The condensing lens has a curvature radius of 0.5-2mm and the convex lens array has a curvature radius of 1-5mm, which transforms the light emission pattern from omnidirectional to controlled directional beams, reducing glare while maintaining light utilization efficiency above 80%.
2Object-affected harmful factors
If translucent material is used for the lamp cover to expand point light sources into surface light, then anti-glare performance is improved, but light utilization efficiency deteriorates (light emitted by the light source cannot be effectively used)
Solution Approach 1:
The patent replaces the translucent diffuser material approach with a precise optical lens system. Instead of scattering light through translucent material which wastes light, the condensing lens and convex lens array systematically redirect light rays to achieve the desired surface light effect with controlled distribution, maintaining high light utilization efficiency.
3Area of stationary object
If the illumination angle is increased to cover more area, then lighting coverage is improved, but anti-glare performance deteriorates (UGR requirement cannot be met)
Solution Approach 1:
The patent segments the lighting function into two distinct optical systems: the condensing lens for light collection and focusing, and the convex lens array for light redistribution and linear source creation. This segmentation allows independent optimization of coverage area and glare control, achieving both wide illumination coverage and compliance with UGR<19 anti-glare standards.
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 lamp achieves high-efficiency light distribution and uniform illumination without compromising on efficiency, addressing glare issues and improving light utilization.
Implementation Method 1
a condensing lens, arranged above the light emitting direction of the light-emitting chip, and the light emitting angle of the plurality of the light-emitting chips is reduced in the plane of the vertical length direction
Implementation Method 2
the strip lamp cover is provided with a convex lens array that visually stretches the plurality of the light-emitting chips along a length direction
Implementation Method 3
one side of the condensing lens away from an irradiation surface is provided with a strip reflective portion that reflects a light leakage to an opposite side of the condensing lens
Data Source
Figure 1
Figure 2
Figure 3
AI summary
High-efficiency linear light source focused strip lamp, comprising strip lamp frame (100), a plurality of light emitting chips (300) disposed at intervals in the longitudinal direction on a strip lamp plate (200) provided on the strip lamp frame (100), a condensing lens (400) arranged above the light emitting direction of the light-emitting chips (300), and a strip lamp cover (500) connected to the strip lamp frame (100) and located above the condensing lens (400), wherein the strip lamp cover (500) is provided with a convex lens array (501) that visually stretches the light-emitting chips (300) along a length direction.