Optical Lens Spacer Structure for Stress-Controlled Deformation
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Solution Overview
Problem
Optical lenses in electronic devices face challenges in maintaining optical quality due to deformation caused by environmental changes, which affect image quality and functionality.
Innovation Solution
The optical lens design includes a lens barrel, a lens element, a spacer element, and a retaining element, with a spacer element positioned between the lens element and the retaining element to maintain a fixed position and allow for controlled deformation, preventing stress-induced optical quality degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the lens element is rigidly fixed to the lens barrel, then the structural stability is improved, but the optical quality deteriorates due to stress-induced deformation under environmental changes
Solution Approach 1:
The support structure is divided into multiple independent support points distributed around the lens element. Each support point provides localized support without creating concentrated stress, allowing the lens element to maintain structural stability while accommodating environmental deformation uniformly across its surface.
Solution Approach 2:
The support structure provides different types of support at different locations: the first support surface supports the optical surface at the optical axis center, while the second support surface supports the peripheral surface at the edge. This localized differential support allows the lens element to maintain its shape under environmental changes without inducing stress-induced deformation.
2Reliability
If the lens element is constrained to prevent deformation, then the optical quality is maintained, but the adaptability to environmental changes deteriorates
Solution Approach 1:
The patent introduces a spacer element as an intermediary component between the lens element and the lens barrel. This spacer provides a controlled support structure that maintains the lens element's position and optical quality while allowing it to deform naturally in response to environmental changes, thus mediating between the need for stability and adaptability.
Solution Approach 2:
The support structure is designed to be dynamically adaptive rather than rigidly fixed. The first and second support surfaces are positioned to allow the lens element to deform under environmental changes while maintaining optical quality, enabling the system to adapt to varying temperature and humidity conditions.
3Reliability
If the lens element is supported at multiple points, then the deformation control is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple support functions into a single integrated support structure formed by the lens barrel. The first support surface and second support surface are both provided by the same lens barrel structure, eliminating the need for separate support components and reducing overall structural complexity while maintaining effective deformation control.
Data Source
AI summary
An optical lens includes a lens barrel, a lens element, a spacer element and a retaining element. The spacer element has a near-axis side surface, a far-axis side surface, and first and second surfaces arranged opposite to each other. The near-axis side surface is connected to the first and second surfaces on a side closest to an optical axis and tapers toward the optical axis, forming a light-passing hole. The far-axis side surface is connected to the first and second surfaces on a side farthest from the optical axis. The retaining element is fixed to the lens barrel. The spacer element is between the lens element and the retaining element. The lens element has a first region surrounding the optical axis and supported on the first surface. The retaining element has a second region surrounding the optical axis and supported on the second surface.