Optical Apparatus Deformation Beam Stress Absorption
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Solution Overview
Problem
Existing optical apparatuses face issues with operability degradation due to screw fixation, which can cause deformation of the base member, and excessive force applied to the pressing member leading to operational discomfort and instability.
Innovation Solution
Incorporation of a stress-absorbing portion in at least one of the first or second members to absorb stress generated by the fixing member, allowing for easy assembly and disassembly while maintaining operability, using a deformation beam portion in the front cover to absorb fixing forces and reduce deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pressing member is fixed with only screws, then the assembly is simple, but the base member is deformed due to fastening forces and operability is degraded
Solution Approach 1:
A stress-absorbing member is introduced as an intermediary component between the fixing member (screws) and the base member. This mediator absorbs the fastening forces generated by the screws, preventing direct transmission of stress to the base member and thus avoiding deformation while maintaining simple screw-based fixation.
Solution Approach 2:
The stress-absorbing member is designed as a replaceable component that can be easily replaced when worn or damaged. This allows the main base member and operation ring to be preserved, and only the consumable stress-absorbing element needs periodic replacement, balancing simplicity with long-term operability.
2Strength
If excessive force is applied to the pressing member, then the fixation is strong, but the pressing member comes off and reliability is reduced
Solution Approach 1:
The stress-absorbing member is pre-installed between the fixing member and base member to cushion and distribute applied forces before they can cause damage. This beforehand cushioning prevents both excessive force transmission that would cause the pressing member to come off and insufficient force that would allow base member deformation.
3Manufacturing precision
If the operation ring is firmly pressed to prevent shifting, then positioning accuracy is improved, but rotation comfort is degraded
Solution Approach 1:
The pressing member is designed to apply localized pressure only at specific contact points with the operation ring, rather than uniform pressure across the entire ring. This localized pressing maintains positioning accuracy at critical points while leaving other areas free for comfortable rotation operation.
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 optical apparatus is designed to maintain high operability and comfort during rotation operations, preventing degradation and allowing for easy maintenance by absorbing stress and reducing deformation, thus enhancing the overall performance and usability of the optical apparatus.
Implementation Method 1
at least one of the first member or the second member includes a stress absorbing portion configured to absorb stress generated by the fixing member
Data Source
AI summary
An optical apparatus including: an optical element; a front fixed barrel; a front cover; a function operation ring, which is arranged between the front fixed barrel and the front cover, and is configured to be rotated to move the optical element; and a fixing screw configured to fix the front fixed barrel and the front cover to each other, in which at least one of the front fixed barrel or the front cover includes a deformation beam portion configured to absorb stress generated by the fixing screw.