Housing Lighting with Light Pipe and Diffuser for Even Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting support structures face challenges in achieving even light distribution across surfaces with angles, curves, or indentations, particularly in housings for apparatuses like multi-well plates used in assays, without requiring Fresnel lenses.
Innovation Solution
A lighting device comprising a light emitting diode (LED) separated from a diffuser film by a space, connected to a light pipe, which guides light uniformly across the surface without the need for Fresnel lenses, using a compact, low-profile design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If Fresnel lenses are used to achieve even light distribution, then light uniformity is improved, but device complexity increases
Solution Approach 1:
The patent extracts and removes the Fresnel lens from the optical system, replacing it with a simpler light guide bar and diffuser film combination. This eliminates the complex optical component while achieving the desired even light distribution through alternative means - the light guide bar confines and directs light, while the diffuser film scatters it uniformly across the housing surface.
Solution Approach 2:
The patent replaces the expensive and complex Fresnel lens with inexpensive, simple components - a light guide bar and diffuser film. These simpler components are easier to manufacture, less prone to failure, and sufficient for achieving the lighting effect without requiring precision optical manufacturing.
2Illumination intensity
If Fresnel lenses are used to achieve even light distribution, then light uniformity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent removes the Fresnel lens from the assembly, eliminating the need for precision optical manufacturing. The light guide bar and diffuser film can be manufactured using standard plastic injection molding techniques, significantly simplifying the manufacturing process and reducing production costs.
Solution Approach 2:
The patent employs inexpensive plastic components (light guide bar and diffuser film) that are easy to manufacture and replace. These components can be produced through standard manufacturing processes without requiring specialized optical fabrication, making the overall device more economical and easier to produce at scale.
3Device complexity
If conventional lighting structures are used, then device simplicity is maintained, but light distribution evenness deteriorates on surfaces with angles, curves, or indentations
Solution Approach 1:
The patent segments the lighting function into two distinct components: a light guide bar that generates and confines light, and a diffuser film that scatters it uniformly. This segmentation allows each component to be optimized for its specific function - the light guide bar for light containment and direction, the diffuser film for uniform scattering - thereby achieving even light distribution on complex surfaces without overall system complexity.
Solution Approach 2:
The patent introduces a light guide bar as an intermediary component between the light source and the housing surface. This light guide bar acts as a mediator that confines the light from the LED and directs it along the housing, ensuring even distribution across surfaces with angles, curves, or indentations without requiring complex optical calculations or Fresnel lenses.
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 achieves a more even distribution of light across surfaces, enhancing both aesthetic and utilitarian functions, such as status indication, without the complexity of Fresnel lenses.
Implementation Method 1
a first light emitting diode (LED)
Implementation Method 2
a first surface of a diffuser film separated from the LED by a space
Implementation Method 3
the diffuser film configured to contact a light pipe
Data Source
AI summary
The application is directed to a device housing. The device housing includes a first light device, the first light device including a first electrical supply configured to provide an electrical signal to a first light emitting diode (LED), the first LED separated from a first surface of a diffuser film by a space, wherein the diffuser film includes a second surface, opposite the first surface, the second surface configured to contact a first light pipe.