Light Source Cap Attachment Mechanism for Diffuser Retention
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Solution Overview
Problem
Electronic devices with light sources, such as proximity sensors, face the risk of eye harm due to high-intensity light beams when the diffuser becomes detached, as the light source's intensity increases without diffusion.
Innovation Solution
A light-emitting device design featuring a cap with a diffuser that securely covers the light source, using a volume of glue or an arm to attach the wire to the cap, ensuring the cap remains attached to the substrate even if detached, thereby preventing direct exposure of the high-intensity light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the diffuser is removed or detached from the light source, then the light beam intensity increases and measurement distance can be extended, but the light source becomes harmful to the user's eyes
Solution Approach 1:
The patent applies preliminary anti-action by designing a protective cap with a diffuser that is pre-installed on the light source. This protective structure is in place before any potential harm can occur, preventing the high-intensity light from directly exposing users' eyes while still allowing the light source to function at high intensity for extended measurement distances.
Solution Approach 2:
The diffuser acts as an intermediary element between the light source and the user's eyes. It is integrated into the protective cap that covers the light source, diffusing the high-intensity light beam to reduce its intensity before it can reach the user, thereby eliminating the harmful effect while maintaining the light source's high-power capability.
2Reliability
If the cap is securely attached to the substrate, then the diffuser remains in position to diffuse light and protect users, but the device structure becomes more complex
Solution Approach 1:
The patent merges multiple functions into the protective cap structure. The cap simultaneously serves as a mechanical protective cover, a mounting structure for the diffuser, and a component that can be secured to the substrate. By combining these functions into a single integrated component, the design achieves reliable light protection without proportionally increasing device complexity.
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 the risk of eye harm by ensuring the cap remains attached to the substrate, maintaining the diffuser's function and preventing the light source from becoming a hazard.
Implementation Method 1
a diffuser adapted to diffuse light generated by the light source
Implementation Method 2
a volume of glue fixing the intermediate section of the wire to the cap
Data Source
AI summary
The present disclosure relates to a light-emitting device comprising: a light source mounted on a substrate; a wire for providing a supply voltage or activation signal to the light source, a cap covering the light source and having a diffuser adapted to diffuse light generated by the light source; and either: a volume of glue fixing an intermediate section of the wire to the cap; or an arm fixed to the cap and extending between the intermediate section of the wire and the substrate.