Foam Glass Diffuser for LED Glare Reduction
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Solution Overview
Problem
Existing LED lighting fixtures with glass diffusers are complex and costly, requiring microstructures or nanostructures for glare reduction, which complicates manufacturing and increases costs.
Innovation Solution
A lighting fixture with a luminescence light source and a glass diffuser made from solid foam glass, where the light source is arranged in light strips surrounding the diffuser block, achieving key light diffusion properties and a scalable design for indirect lighting with a manual rolling technique that mimics organic lighting styles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If microstructures or nanostructures are used in the glass diffuser for glare reduction, then the glare effect is dampened, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent uses foam glass with a porous structure containing numerous gas bubbles distributed throughout the glass matrix. This porous structure diffuses light effectively to reduce glare while avoiding the need for complex microstructures or nanostructures. The foam glass is produced through a straightforward manufacturing process involving mixing glass cullet with foaming agents, eliminating the need for sophisticated fabrication techniques.
Solution Approach 2:
The invention combines glass cullet (recycled glass) with organic or inorganic foaming agents to create a composite foam glass material. This composite structure provides effective light diffusion through the distributed gas bubbles while maintaining simple manufacturing. The composite nature allows control of optical properties through material composition rather than complex structural design.
2Ease of manufacture
If conventional glass diffusers are used, then manufacturing is simple, but the structure is not stable and glare reduction is insufficient
Solution Approach 1:
The patent creates a stable foam glass structure by combining glass cullet with foaming agents that form a rigid porous matrix. The resulting foam glass maintains structural integrity while providing consistent light diffusion properties. The stability is enhanced by the three-dimensional network of gas bubbles embedded in the glass matrix, creating a mechanically robust yet optically effective material.
3Use of energy by moving object
If light-emitting diodes are used for cold light generation, then energy efficiency is improved, but the light emission is directional and causes glare
Solution Approach 1:
The foam glass diffuser with its porous structure containing numerous gas bubbles effectively scatters the directional light from LEDs in multiple directions. This transforms the concentrated LED beam into diffuse ambient light, eliminating glare while preserving the energy efficiency of LED technology. The porous structure provides sufficient scattering without requiring additional optical components.
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 a cost-effective, stable, and energy-efficient LED lighting fixture with reduced glare, capable of emitting warm light and adjustable color temperature, suitable for various applications including ambient lighting, decorative lighting, and medical uses, while minimizing insect attraction and offering sustainable production using recycled glass.
Implementation Method 1
The diffuser is a glass diffuser (11) having a solid foam glass diffuser block (13). The foam glass of the glass diffuser has closed pores and has gas bubbles (15), the gas bubbles having an average diameter dm of between 0.5 mm≦dm≦1 mm.
Implementation Method 2
The light source (7) is a luminescent light source with at least one light-emitting diode (10).
Data Source
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AI summary
The invention relates to a lighting fixture (1) comprising a light source (7) and an optical diffuser (8). The light source (7) is a luminescence light source (9) having at least one light-emitting diode (10). The diffuser (8) is a glass diffuser (11). The glass diffuser (11) comprises a massive diffuser block (13) of foamed glass (12). The light source (7) is arranged in strip lights (14) surrounding the diffuser block (13).