Helmet Rim Lighting for Shadow-Free Low-Profile Illumination
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Solution Overview
Problem
Current helmet-mounted lights interfere with other accessories, create shadows, and snag on environmental obstacles, limiting their effectiveness in enclosed environments and disrupting the user's field of vision.
Innovation Solution
A helmet rim lighting system that attaches to the helmet rim, providing forward and downward lights via LEDs, with a low-profile design that minimizes shadows and interference, using a groove mechanism for secure attachment and a diffuser for even illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If current helmet mounted lights are used, then visibility of the work environment is improved, but dark shadows are produced for the user
Solution Approach 1:
The patent transitions from a single focused light source to a distributed array of LEDs arranged around the helmet rim, adding spatial dimensionality to the illumination system. This multi-point lighting arrangement illuminates the workspace from multiple angles simultaneously, eliminating shadows cast by single-source lighting while maintaining comprehensive visibility.
Solution Approach 2:
The lighting system is divided into multiple independent LED segments positioned at different locations around the helmet rim. Each LED segment contributes to overall illumination from its specific position, creating a distributed lighting pattern that covers the workspace more uniformly and reduces shadow formation compared to a single concentrated light source.
2Area of stationary object
If helmet mounted lights protrude substantially from the helmet, then lighting coverage is improved, but snagging on environmental obstacles occurs
Solution Approach 1:
The lighting array is distributed along the horizontal circumference of the helmet rim rather than extending vertically outward. This dimensional redistribution allows the light sources to be positioned far from the helmet center (improving lighting coverage) while maintaining a low vertical profile (reducing snagging risk).
Solution Approach 2:
Different portions of the lighting system serve different functions: LEDs positioned laterally provide wide-area illumination, while the overall low-profile construction minimizes interaction with environmental obstacles. The system optimizes local lighting performance without compromising overall safety.
3Adaptability or versatility
If helmet mounted lights are positioned away from the user's eyes, then interference with accessories is reduced, but dark shadows are produced
Solution Approach 1:
The lighting function is redistributed from a single anterior position (close to eyes) to multiple lateral positions around the helmet rim. This spatial redistribution maintains compatibility with front-mounted accessories while the multi-angle illumination geometry eliminates shadows that would be cast by distant single-source lighting.
4Illumination intensity
If a focused beam of light is used, then illumination intensity is improved, but uneven lighting occurs in enclosed environments
Solution Approach 1:
The concentrated light output is achieved through multiple high-intensity LED segments distributed around the helmet rim. Each segment provides focused illumination in its local direction, and the collective effect of all segments creates uniform overall lighting across the enclosed workspace, eliminating hot spots and dark areas.
Solution Approach 2:
Different LED segments are positioned to illuminate different portions of the workspace, with each segment optimized for its local area. This distributed approach ensures uniform illumination across the entire enclosed environment while maintaining high intensity at each local zone.
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 system offers even, shadow-free illumination of the workspace, compatible with other helmet-mounted devices, and reduces snagging risks, enhancing visibility in low-light conditions.
Implementation Method 1
The forward light is produced by at least one forward-facing light and the downward light is produced by at least one downward-facing light. The downward-facing light is provided by at least one right-angle surface mount light emitting diode, and the forward-facing light is provided by at least one surface mount light emitting diode.
Data Source
AI summary
A helmet rim lighting system comprises a helmet attach mechanism and a housing holding electronics. When attached to a helmet, the housing produces both forward and downward lights. The forward light is generated by at least one forward-facing light, and the downward light is produced by at least one downward-facing light. The forward light directs light from the center horizontally to the left and right, both over 90 degrees, while the downward light is directed towards the ground, continuing the downward line of the helmet's edge. The helmet attach mechanism is designed to match the contour of a helmet's front rim. The system can independently activate the forward and downward lights and may include a single input for control. The housing and circuitry are waterproof, and the diffuser can serve as a gasket.