Light Mixing Rod Contact Assembly for Vibration-Stable LED Optics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical devices face issues such as LED glass degradation due to vibration, inconsistent optical effects due to varying air gaps, and reduced light transmission efficiency due to air gaps between LEDs and light mixing rods.
Innovation Solution
The optical device features a light mixing rod in face-sharing contact with the LED, secured by a resilient member like springs, eliminating the air gap and maintaining contact during device actuation, thus reducing manufacturing tolerances and enhancing light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an air gap is spaced between the LED and the light mixing rod to protect the LED glass from degradation, then the LED is protected from vibration damage, but light transmission efficiency is reduced and optical effects become inconsistent
Solution Approach 1:
A resilient member (spring) is introduced as an intermediary component between the LED and light mixing rod. This spring maintains face-sharing contact while absorbing vibration, allowing light to transmit efficiently through the contact interface while protecting the LED glass from direct impact forces during actuation.
Solution Approach 2:
The resilient member provides dynamic adaptation to vibration and movement forces. The spring compresses and expands to maintain consistent face-sharing contact between the LED and light mixing rod throughout device actuation, ensuring both protection and optimal light transmission under varying mechanical conditions.
2Reliability
If an air gap is spaced between the LED and the light mixing rod to protect the LED glass, then the LED is protected from degradation, but manufacturing precision is reduced due to inconsistent air gap thickness
Solution Approach 1:
The resilient member acts as a self-adjusting intermediary that compensates for manufacturing tolerances in LED thickness and fastener dimensions. The spring maintains uniform face-sharing contact pressure across the interface, eliminating the need for precise air gap control while ensuring consistent optical effects.
Solution Approach 2:
The resilient member changes its compression parameter dynamically to maintain optimal contact conditions. This allows the system to accommodate variations in LED thickness and assembly tolerances while maintaining consistent face-sharing contact and uniform optical performance across all devices.
3Reliability
If an air gap is spaced between the LED and the light mixing rod to protect the LED glass, then the LED is protected from degradation, but device complexity increases due to additional spacing requirements
Solution Approach 1:
The resilient member merges the protection function and light transmission function into a single integrated component. The spring simultaneously maintains protective contact pressure and enables efficient light transmission through face-sharing contact, eliminating the need for separate air gap structures and reducing overall 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
This configuration enhances light transmission, ensures consistent optical effects, and protects the LED from degradation by maintaining face-sharing contact, leading to improved performance and reduced variations among devices.
Implementation Method 1
A resilient member, such as one or more springs, may maintain the face-sharing contact between the LED and the light mixing rod throughout actuation of the optical device
Data Source
AI summary
Systems are provided for an optical device. The optical device includes a light emitting diode in face-sharing contact with a light mixing rod. A resilient member is configured to maintain the light mixing rod in face-sharing contact with the light emitting diode throughout a range of motion of the optical device.