Electronic Device Housing Light Ring Absorbing Elements
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Solution Overview
Problem
Conventional electronic door locks with light indication functionality suffer from light spots on the guiding ring, compromising user visual perception from certain viewing angles due to direct light passage through the reflective layer.
Innovation Solution
Incorporating light-absorbing elements at the light-entering edge of the guiding ring and a reflective layer, along with shielding rings to prevent direct light passage and separate light beams, reducing light spots and improving visual perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a reflective layer is used to guide light through the housing, then light indication functionality is achieved, but light spots appear on the guiding ring from certain viewing angles
Solution Approach 1:
A light-absorbing layer is introduced as an intermediary element between the reflective layer and the guiding ring. This layer selectively absorbs light that would otherwise reflect off the guiding ring and create visible spots, while allowing the desired light indication function to continue. The light-absorbing layer acts as a mediator that removes the harmful reflected light paths without interfering with the primary light guidance function.
Solution Approach 2:
The harmful reflected light paths are extracted or removed from the system by positioning the light-absorbing layer to specifically intercept and absorb light reflecting off the guiding ring. This extraction approach selectively eliminates the problematic light spots while preserving the essential light indication functionality that passes through the housing.
2Illumination intensity
If light sources are positioned to illuminate through the housing recess, then light indication is provided, but light beams may mix and compromise visual perception
Solution Approach 1:
The housing structure is segmented into distinct functional zones: a housing recess for light sources, a guiding ring for light transmission, and light-absorbing elements positioned at specific locations. This segmentation separates different light paths and functional areas, preventing unwanted light mixing while maintaining effective light indication in each zone.
Solution Approach 2:
Different regions of the housing are assigned different optical properties. The reflective layer provides light guidance in certain areas, while light-absorbing elements are strategically placed at the light-entering edge of the guiding ring to absorb excess light. This local differentiation of optical characteristics ensures that light beams maintain their intended paths without mixing, preserving visual perception quality.
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 effectively reduces light spots on the guiding ring, enhancing user visual perception and preventing light beam mixing, thereby improving the functionality of electronic door locks in low-light environments.
Implementation Method 1
The light-absorbing elements are supported by the supporting member and correspond to the light-entering edge
Implementation Method 2
The guiding ring is disposed on the device housing, wherein the guiding ring extends from the housing recess to the exterior of the device housing. The guiding ring has a light-entering edge and a light-emitting edge. The first light beams enter the guiding ring via the light-entering edge, and leave the guiding ring via the light-emitting edge.
Implementation Method 3
the electronic device further comprises a reflective layer, wherein at least a portion of each first light source is located between the reflective layer and the circuit board
Data Source
AI summary
An electronic device includes a housing defining a recess and having a bottom wall, a circuit board disposed in the recess, a plurality of first light sources disposed on the circuit board, a guiding ring provided in the housing and extending from the recess to an exterior of the housing, and a plurality of light-absorbing elements. The guiding ring having a light-entering edge for receiving light from the first light sources, and a light-emitting edge for outputting such light; the light-absorbing elements are supported by the bottom wall and adjacent to the light-entering edge.