LED Lens Assembly Prisms Diffusers Emulate Incandescent Light
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Solid-state lighting fixtures lack the aesthetic appeal and light emittance characteristics of traditional incandescent and fluorescent lighting, making them less desirable for replacement in residential, commercial, and industrial applications.
Innovation Solution
A lighting fixture design featuring a solid-state light source coupled with a lens assembly that includes elongated prisms and diffusers, which refract and diffuse light to mimic the appearance of traditional light sources, such as incandescent bulbs or CFLs, by making the light appear to originate from an interior cavity rather than the base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If solid-state lighting devices are used to replace incandescent and fluorescent bulbs, then energy efficiency and longevity are improved, but aesthetic appeal and light emittance characteristics deteriorate
Solution Approach 1:
The patent applies the copying principle by creating a lens assembly that replicates the light emittance characteristics of traditional incandescent and fluorescent bulbs. The lens assembly with its specific optical elements (diffusers, reflectors, and transparent portions) copies the visual appearance and light distribution patterns of conventional bulbs, allowing solid-state LEDs to emulate traditional lighting aesthetics while maintaining energy efficiency advantages
Solution Approach 2:
The patent utilizes color changes and light property modifications through the lens assembly's optical elements. The diffusers and transparent portions alter the light's direction, distribution, and appearance to match traditional bulb characteristics, transforming the light output from the LED source to achieve aesthetic equivalence with incandescent and fluorescent lighting
2Duration of action of stationary object
If solid-state lighting devices are used to replace incandescent and fluorescent bulbs, then longevity is improved, but light emittance characteristics deteriorate
Solution Approach 1:
The patent employs the intermediary principle by introducing a lens assembly as a mediator between the solid-state LED light source and the surrounding environment. This lens assembly acts as an optical intermediary that shapes, diffuses, and directs light to produce emittance characteristics similar to traditional bulbs, bridging the gap between LED technology and conventional lighting appearance
3Illumination intensity
If a lens assembly with prisms and diffusers is added to a solid-state light source, then light emittance characteristics are improved, but device complexity increases
Solution Approach 1:
The patent applies the merging principle by integrating multiple optical functions into a single lens assembly component. The lens assembly combines diffusers, reflectors, and transparent portions into one unified structure that performs multiple optical functions simultaneously, reducing the need for separate components and simplifying the overall device architecture while achieving desired light emittance characteristics
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 design effectively emulates the radiant flux distribution of traditional light sources, enhancing the aesthetic appeal and compatibility of solid-state lighting fixtures in various applications while reducing heat buildup and improving longevity.
Implementation Method 1
The light directed into the cavity by the solid-state light source is significantly refracted and reflected by the prisms
Implementation Method 2
The light directed into the cavity by the solid-state light source is significantly refracted and reflected by the prisms
Implementation Method 3
Light passing through the prisms or other part of the body may be diffused by the diffusers as it departs the lens assembly
Data Source
AI summary
The disclosure relates to a lighting fixture having a base, a solid-state light source, and a lens assembly. The optic has a body with a cavity and a proximal opening. The lens assembly is coupled to the base at the proximal opening. The solid-state light source is mounted to the base and is configured to direct light into the cavity via the proximal opening. At least a portion of an interior surface of the body includes a number of elongated prisms. At least a portion of the exterior surface of the body includes a number of diffusers.