Multifunctional Glare Tester Using Mirror to Intensify LED Light
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current glare testing methods are limited in effectively mimicking environmental lighting conditions, particularly for diffuse and focal lighting, and lack the capability to simultaneously assess macular photostress and blue-field entopic phenomena.
Innovation Solution
A compact, low-weight glare testing device utilizing a mirrored surface to intensify low-energy LED light for flood lighting and positioning spot lights within the line of sight, which also functions as a multifunctional tool for photostress and blue-field entopic phenomenon testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a low-energy LED light bulb is used for flood lighting glare testing, then energy consumption is reduced, but brightness intensity is insufficient
Solution Approach 1:
A mirrored surface is introduced as an intermediary element to redirect and concentrate light from the low-energy LED bulb onto the test chart. This mirror acts as a mediator that amplifies the effective brightness of the LED without requiring additional energy input, thereby resolving the contradiction between low energy consumption and sufficient brightness intensity for glare testing
2Weight of moving object
If the device is made compact and low-weight for portability, then ease of operation is improved, but light-gathering capability and brightness are reduced
Solution Approach 1:
The mirrored surface serves as a compact light-concentrating intermediary that enables a small, portable device to achieve high brightness at the test chart. The mirror focuses the LED light efficiently within a compact form factor, eliminating the need for large, heavy light sources while maintaining sufficient illumination intensity for accurate glare testing
3Measurement precision
If spot lights are positioned within the line of sight to duplicate automobile headlights, then measurement precision for environmental glare simulation is improved, but device complexity increases
Solution Approach 1:
The device integrates multiple lighting modes (flood lighting and spot lighting) into a single handheld instrument. The spot light source can be positioned within the line of sight to simulate oncoming vehicle headlights, while the same device structure also provides flood lighting for other glare testing protocols. This multi-functionality achieves high measurement precision for environmental glare simulation without proportionally increasing device complexity
4Adaptability or versatility
If a single device is designed to perform multiple functions (glare testing, photostress testing, blue-field entopic phenomenon testing), then adaptability is improved, but device complexity increases
Solution Approach 1:
The handheld device is designed with universal multi-functionality to perform glare testing, photostress testing, and blue-field entopic phenomenon testing. By integrating multiple testing capabilities into a single instrument with shared optical and structural components, the device achieves high adaptability for different eye health assessments while controlling overall complexity through component sharing and integrated design
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 device provides accurate and comprehensive glare testing, effectively duplicating environmental glare conditions and assessing eye health through enhanced brightness and multifunctional capabilities, improving the detection of visual impairments.
Implementation Method 1
utilizes a mirrored surface to intensify the light from a low energy LED battery powered light bulb
Implementation Method 2
low energy LED battery powered light bulb
Data Source
AI summary
A vision-testing device is disclosed that measures glare, macular photostress, and the blue-field entopic phenomenon. Utilizing a mirror, the effective brightness of a small energy efficient light bulb is increased which allows a compact assembly. One embodiment places lights in the line of vision to closely duplicate the glare experience from on coming automobile headlights. The invention provides for testing glare under diffuse and focal lighting conditions which closely mimic environmental lighting conditions.