LED Bulb Antenna Radial Placement for Signal Reception
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Solution Overview
Problem
Existing LED bulbs with integrated radio communication antennas face challenges in maintaining high receiver sensitivity and achieving downsizing without compromising light distribution characteristics, as the antenna's position and height affect signal reception and light emission.
Innovation Solution
The electric light bulb type light source apparatus incorporates a circuit substrate with an antenna positioned within a translucent cover area, allowing it to receive radio signals without being shielded by the conductive outer case, while the light source unit's void area and separate placement of components ensure unobstructed light emission, enabling high receiver sensitivity and downsizing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the antenna height is lowered to avoid blocking LED light, then light distribution characteristics are improved, but receiver sensitivity of the antenna deteriorates
Solution Approach 1:
The patent positions the antenna in the radial direction (horizontal dimension) rather than vertically, changing the dimensional approach to resolve the conflict between light emission and signal reception. The antenna is disposed in the second area within the translucent cover, extending radially outward to achieve optimal signal reception without compromising vertical light distribution.
Solution Approach 2:
The casing is divided into distinct functional areas: the first area (conductive outer case) for structural support and the second area (translucent cover) for optimal antenna placement. This segmentation allows the antenna to be positioned in a dedicated zone that prioritizes signal reception while the light source operates independently in its own space.
2Reliability
If the LED element position is raised to improve antenna height, then receiver sensitivity is improved, but light distribution characteristics become unsuitable and downsizing is difficult
Solution Approach 1:
Instead of vertically raising the LED elements to improve antenna height, the patent achieves optimal antenna positioning by extending the antenna radially in the horizontal dimension. This allows the LED elements to remain in their optimal vertical position for light distribution while the antenna achieves sufficient height for signal reception through radial extension.
Solution Approach 2:
Different parts of the device are optimized for their specific functions: the LED elements are positioned for optimal light emission in the vertical direction, while the antenna is positioned in the second area with radial extension for optimal signal reception. Each component has its own optimized zone rather than compromising a single position for all functions.
3Volume of moving object
If the antenna is positioned within the conductive outer case area, then downsizing is achieved, but receiver sensitivity deteriorates due to shielding
Solution Approach 1:
The casing is segmented into a conductive outer case (first area) and a translucent cover (second area). The antenna is specifically positioned in the second area, separating it from the conductive shielding of the first area. This segmentation allows compact overall device size while ensuring the antenna operates in a non-shielding environment for optimal signal reception.
Solution Approach 2:
The translucent cover acts as an intermediary structure that provides a non-conductive environment for the antenna while maintaining the compact form factor. It mediates between the need for device miniaturization and the requirement for unshielded antenna operation, allowing the antenna to extend radially without being blocked by conductive materials.
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
This configuration ensures high receiver sensitivity and achieves downsizing without sacrificing light distribution characteristics, allowing the light source to function effectively as an illuminating device.
Implementation Method 1
The antenna is configured to receive a radio signal from an outside of the casing
Implementation Method 2
the light source unit's void area and separate placement of components ensure unobstructed light emission
Data Source
AI summary
An electric light bulb type light source apparatus capable of ensuring high receiver sensitivity and achieving downsizing without sacrificing light distribution characteristics for lighting.