Lens-Mounting Structure with Asymmetric Adhesive Areas
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Solution Overview
Problem
Existing lens-mounting structures in image-forming apparatuses, such as copiers and printers, fail to maintain high-optical characteristics due to lens displacement and stress caused by adhesive agent hardening, leading to localized changes in the lens refractive index and imaging position, resulting in low-quality images.
Innovation Solution
A lens-mounting structure where the gluing surface area of the support portion and adhesive agent is set to be smaller than that of the lens, reducing stress and refractive index changes caused by adhesive contraction, thereby maintaining high-optical characteristics and precision scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the lens is mounted using adhesive agent, then the lens can be securely attached to the support portion, but stress and localized refractive index changes occur in the lens due to adhesive contraction
Solution Approach 1:
The gluing surface is divided into a support portion mounting surface and a lens mounting surface. By segmenting the attachment interface, the patent allows different surface areas for each component while maintaining secure attachment. The support portion mounting surface has a smaller area than the lens mounting surface, which distributes the adhesive contraction stress and prevents localized refractive index changes in the lens.
2Manufacturing precision
If the gluing surface area of the support portion is made smaller than the lens, then stress in the lens is reduced, but the attachment area is minimized
Solution Approach 1:
The patent applies different surface area characteristics to different parts of the gluing interface. The support portion mounting surface has a smaller area to reduce stress transmission to the lens, while the lens mounting surface has a larger area to ensure adequate attachment. This local differentiation of surface areas optimizes both optical characteristics and attachment strength.
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 approach ensures stable and high-quality images by minimizing lens orientation changes and refractive index alterations, achieving precise optical scanning and reducing stress-related issues associated with adhesive hardening.
Implementation Method 1
a lens-mounting structure that mounts a lens to a support portion using an adhesive agent
Implementation Method 2
changes in a lens position caused by lens displacement associated with shrinkage that occurs because of adhesive agent hardening
Data Source
AI summary
A lens-mounting structure according to the present invention is a lens mounting structure that glues a lens and a mounting surface of a support portion that supports the lens using an adhesive agent applied there between, to mount the lens to the support portion, characterized by setting a gluing surface area of the mounting surface of the support portion and the adhesive agent to be smaller than a gluing surface area of the lens and the adhesive agent.