LED Bar Lighting Lens Layout for Exhibition Cabinet Glare Control
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Solution Overview
Problem
Conventional LED strip lighting in exhibition cabinets causes discomfort due to excessive glare, which is typically mitigated by blocking the light, resulting in reduced efficiency and increased volume.
Innovation Solution
An LED bar lighting system with a lens column that refracts light to reduce the angle of emission below 70 degrees, preventing direct glare and maintaining light efficiency by using a combination of a condensing lens and a convex lens to direct light away from the viewer's eyes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light-blocking equipment is used to reduce glare, then glare is reduced, but the overall volume of the LED lamp increases and light loss occurs
Solution Approach 1:
A lens column is introduced as an intermediary optical element between the LED chip and the external environment. The lens column includes a first lens portion and a second lens portion that work together to refract and redirect light, reducing glare without requiring additional light-blocking equipment. This mediator approach allows glare control while maintaining the original lamp structure and avoiding light loss from blocking mechanisms.
2Object-affected harmful factors
If light-blocking equipment is used to reduce glare, then glare is reduced, but light efficiency is reduced due to light loss
Solution Approach 1:
The lens column acts as an optical intermediary that redirects rather than blocks light. The first lens portion receives light from the LED chip and the second lens portion further refracts it, directing light away from the viewer's eyes while maintaining overall light output. This approach reduces glare through refraction instead of absorption or blocking, thereby preserving light efficiency and avoiding energy loss.
Solution Approach 2:
The lens column changes the optical parameters of the light by altering its propagation direction and emission angle. By using specific lens curvatures and refractive indices, the system transforms the light distribution pattern to reduce glare while maintaining total luminous flux, thus avoiding light loss associated with blocking methods.
3Illumination intensity
If conventional LED strip lighting is used, then lighting coverage is provided, but excessive glare causes discomfort
Solution Approach 1:
The lens column serves as an optical intermediary that modifies the light distribution from the LED chip. It maintains adequate illumination coverage for the exhibition cabinet while simultaneously redirecting excessive light that would cause glare. The dual-lens structure optimizes both lighting coverage and glare reduction by controlling the angular distribution of emitted light.
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 effectively reduces glare while maintaining light efficiency, providing a better lighting effect in exhibition cabinets without the need for additional light-blocking equipment.
Implementation Method 1
a lens column (23) mounted on the bar house (21) and extending along the direction of light emitted from the LED chips (22)
Data Source
AI summary
An LED bar lighting and an exhibition includes a receiving chamber and at least one LED bar lighting. The receiving chamber includes a mounting reference line. Each of the at least one LED bar lighting includes a bar house, a plurality of LED chips, and a lens column. Each of the LED chips includes a chip optical axis. The lens column includes a lens optical axis parallel to the chip optical axis, a first light emitting surface intersected with the lens optical axis, and a second light emitting surface. The first light emitting surface is a condensing lens. The second light emitting surface includes a convex lens, and a plane surface located between the first light emitting surface and convex lens. An angle between the lens axis and the mounting reference line in the cross section perpendicular to the axial direction of the bar house is an acute angle.