Broom LED Orientation for Expanded Illumination
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Solution Overview
Problem
Existing handheld cleaning tools with integrated LEDs do not effectively illuminate a work surface, as their light beams are either parallel to the surface, providing limited coverage, or oriented in a single direction, failing to provide a comprehensive illuminated area.
Innovation Solution
A broom equipped with ten white-light LEDs arranged in two rows around the perimeter of the brush cap, each oriented at individual angles to direct light beams parallel to adjacent bristles, creating a larger illuminated zone that extends beyond the brush's perimeter, enhancing visibility of dirt and debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light beams are oriented parallel to the work surface, then the light can reach the work surface, but the illuminated area is limited and coverage is insufficient
Solution Approach 1:
The lighting system is segmented into multiple LED light sources positioned at different locations around the brush cap. Each LED emits light in a specific direction, and collectively they cover a broader area than a single light source could achieve, resolving the contradiction between light direction and coverage area.
Solution Approach 2:
Different LEDs are oriented with different beam directions tailored to their specific positions. LEDs at the front emit forward, side LEDs emit laterally, and rear LEDs emit backward, creating locally optimized illumination that collectively covers the entire work surface area around the brush.
2Illumination intensity
If a single LED light source is used, then the device structure is simple, but the illuminated area is limited and cannot provide comprehensive coverage
Solution Approach 1:
The single LED source is divided into multiple LED elements positioned around the brush cap perimeter. This segmentation allows each LED to cover a specific sector, and together they provide comprehensive 360-degree illumination coverage while maintaining relatively simple individual component design.
Solution Approach 2:
Multiple LED light sources are combined in a coordinated arrangement around the brush cap, with each LED contributing to the overall illumination pattern. The merging of these individual light sources creates a unified lighting system that provides comprehensive coverage without requiring complex individual LED designs.
3Illumination intensity
If light beams are emitted at a shallow angle near the work surface, then the light can illuminate the surface, but the lighted area extends only a short distance from the brush
Solution Approach 1:
The lighting system transitions from shallow-angle surface illumination to multi-dimensional coverage by positioning LEDs vertically around the brush cap and orienting them to emit light downward and outward. This creates illumination that extends further from the brush in multiple spatial dimensions rather than just along the surface plane.
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 broom provides a significantly larger illuminated area, allowing users to easily identify dirt and debris, with the lighted zone extending around the front, sides, and rear of the brush section, improving cleaning efficiency.
Implementation Method 1
a broom that comprises a plurality of LEDs mounted around the perimeter of the bottom face of the brush cap
Data Source
AI summary
A broom with a brush section and a brush cap into which the upper ends of a plurality of bristles are mounted, a plurality of white-light LEDs, a shaft, a rechargeable battery, an on/off switch, and a printed circuit board. The plurality of white-light LEDs are arranged in two rows around a perimeter of a bottom of the brush cap. The bristles are arranged in clusters, and each cluster is inserted into a hole in the bottom of the brush cap. The ten white-light LEDs are mounted into the bottom of the brush cap at preset, individual orientations so that a central axis of a light beam from each LED is oriented in a direction that is parallel to the bristles that are closest to that particular LED.