Optical Element Fixing Structure for Heat and Vibration Stability
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Solution Overview
Problem
Existing optical devices face issues with image quality degradation due to deformation and damage of optical elements caused by heat and vibration, particularly when fixed using press fitting or adhesives.
Innovation Solution
An optical device design that fixes the optical element from different sides using a fixing structure comprising face and side face pressers, preventing deformation and damage, and includes a housing that accommodates the display and optical element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical element is fixed using press fitting or adhesives, then the optical element can be secured in position, but the optical element deforms or gets damaged due to heat and vibration
Solution Approach 1:
The fixing structure transitions from single-point or surface fixation to multi-dimensional clamping by holding the optical element from both the first face side and the second face side, distributing mechanical stress across multiple spatial dimensions and preventing deformation caused by thermal expansion and vibration
Solution Approach 2:
The first face presser and second face presser apply localized pressing forces at specific regions of the optical element's first face and second face respectively, providing targeted support where needed while maintaining overall structural integrity and preventing localized stress concentration that could lead to damage
2Reliability
If the optical element is held from different sides, then deformation and damage are prevented, but the device structure becomes more complex
Solution Approach 1:
The fixing structure integrates multiple functional components (first face presser, second face presser, and support members) into a unified assembly that works cooperatively to hold the optical element from different sides, achieving enhanced protection while maintaining structural coherence and avoiding excessive complexity through functional integration
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
Prevents image quality reduction by securely holding the optical element from multiple directions, minimizing damage and stray light effects, thus maintaining image clarity.
Implementation Method 1
an optical element that includes a first face and a second face facing the first face, the optical element receiving light from the display through the first face, reflecting the received light on the second face, and emitting the reflected light through the first face
Data Source
AI summary
An optical device includes: a display; an optical element that includes a first face and a second face facing the first face, the optical element receiving light from the display through the first face, reflecting the received light on the second face, and emitting the reflected light through the first face; a housing that accommodates the display and the optical element; and a fixing structure that fixes the optical element by holding the optical element from different sides of the optical element.