Push-button Switch Lens Configuration for Uniform Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Operating buttons with light sources face challenges in achieving sufficient brightness and even light distribution due to the long light path and non-parallel light rays, resulting in inadequate illumination.
Innovation Solution
Incorporating a diverging lens in the push rod and a condensing lens in the operating head, aligned with the light source, to diverge and then condense light rays, ensuring they are output as parallel and even beams, thereby enhancing brightness and eliminating light spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the light path length is increased to illuminate the entire operating button, then the coverage area is improved, but the brightness of the output light rays deteriorates
Solution Approach 1:
The patent changes the optical parameters by introducing a diverging lens and a condensing lens to transform the light propagation characteristics. The diverging lens spreads the light rays to cover a larger area, while the condensing lens concentrates the light to maintain brightness, thereby resolving the contradiction between coverage area and illumination intensity.
Solution Approach 2:
The patent introduces optical lenses as intermediary elements between the light source and the operating button surface. These lenses mediate the light transmission process by diverging and then condensing the light rays, enabling both large coverage area and sufficient brightness to be achieved simultaneously.
2Area of stationary object
If the light rays are allowed to spread naturally, then the coverage area is improved, but the uniformity of light distribution deteriorates due to light spots
Solution Approach 1:
The patent changes the spatial distribution parameters of light rays through the use of diverging and condensing lenses. The diverging lens spreads the light to increase coverage, while the condensing lens redistributes the light uniformly to eliminate spots, thereby achieving both large coverage area and uniform light distribution.
Solution Approach 2:
The optical lenses serve as intermediary devices that control and regulate the light ray distribution. By positioning these lenses at specific locations in the light path, the patent achieves uniform light distribution across the entire operating button surface while maintaining broad coverage.
3Area of stationary object
If the distance between the light source and the operating button is increased to cover the entire surface, then the coverage area is improved, but the light brightness deteriorates due to the inverse square law
Solution Approach 1:
The patent changes the optical path parameters by introducing lenses that modify light propagation. The diverging lens creates a wider beam angle to cover larger area, while the condensing lens compensates for intensity loss by concentrating the light, thereby overcoming the inverse square law effect and maintaining brightness over increased distances.
Solution Approach 2:
The optical lenses act as intermediary elements that enable the light to travel longer distances while maintaining both coverage area and brightness. The lenses refract and redirect the light rays to ensure uniform illumination over extended distances, counteracting the natural intensity decay.
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 optical configuration improves light brightness and uniformity, allowing for more effective illumination and simplifying assembly by enabling adjustable parameters for optimal light output.
Implementation Method 1
The push rod is provided with a diverging lens... the light rays generated by the light source can pass through the push rod and the operating head
Implementation Method 2
the operating head is provided with a condensing lens... the light rays generated by the light source can pass through the push rod and the operating head to be irradiated out
Data Source
AI summary
An operating button includes a light source, a push rod with a diverging lens, and an operating head with a condensing lens. The optical center of the diverging lens, the optical center of the condensing lens and the light source are in the same line such that light rays generated by the light source pass through the diverging lens and the converging lens before exiting the operating head as parallel light.