Interchangeable Spectacle Lens Mount with Elastic Coupling

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Solution Overview

Problem

Current spectacles do not allow for easy and practical interchangeability of lenses, limiting their adaptability to different activities and environments, such as sports or varying light conditions, without the need for additional tools or complex mechanisms.

Innovation Solution

The design features a spectacles frame with a coupling element that detachably secures interchangeable eyeglass lenses via an oblong recess and elastic deformation, allowing for quick lens changes without tools, along with a m-shaped elastically deformable front bridge and titanium construction for strength and comfort, and optional features like light penetration control and air flow management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional spectacles with fixed lenses are used, then structural simplicity is maintained, but adaptability to different activities and environments is limited

Engineering Contradiction:
Improveadaptability to different activities and environmentsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The spectacles are divided into separable components: a frame and interchangeable lens assemblies. Each lens assembly can be independently removed and replaced, allowing the user to swap between different lens types (clear, tinted, photochromic) based on activity or environmental conditions without changing the entire spectacles structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The frame is designed with universal coupling elements that can accommodate multiple types of lens assemblies. The same frame structure works with clear lenses for everyday wear, tinted lenses for sports, and photochromic lenses for varying light conditions, making the spectacles system multi-functional.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If lens interchangeability is implemented with complex mechanisms, then adaptability is improved, but ease of operation deteriorates due to tool requirements

Engineering Contradiction:
Improvelens interchangeabilityVSAvoidease of lens replacement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The coupling elements are designed to be manipulated by hand without requiring external tools. The user can directly grasp the lens assembly and frame, engage or disengage the coupling elements through simple hand movements, making the lens replacement process self-service and tool-free.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The complex internal mechanisms traditionally found in interchangeable lens systems are extracted and replaced with simple external coupling elements. The coupling mechanism is exposed and accessible, allowing direct manual operation rather than requiring tool-actuated internal mechanisms.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If quick-release mechanisms are used for lens interchangeability, then ease of operation is improved, but reliability of lens securing deteriorates

Engineering Contradiction:
Improveease of lens replacementVSAvoidlens securing stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The coupling elements incorporate elastic deformation capability, allowing them to dynamically adapt during engagement. When the lens assembly is inserted, the elastic material deforms to accommodate the coupling geometry, then springs back to create a secure locking effect, providing both ease of insertion and reliable securing.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling elements are made from composite or specially engineered materials that combine elasticity with sufficient strength. This allows the material to be flexible enough for easy manual manipulation during lens replacement while maintaining enough rigidity and grip force to securely hold the lens in place during normal use.

Inventive Principle:
Principle #40Composite materials

4Adaptability or versatility

If multiple lens types are carried for different conditions, then adaptability is improved, but loss of time increases due to lens selection and replacement

Engineering Contradiction:
Improvehandling every possible needVSAvoidtime for lens replacement
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The user prepares multiple lens assemblies in advance, each optimized for specific conditions (clear for indoor, tinted for bright outdoor, photochromic for variable conditions). By having pre-prepared lenses ready for immediate attachment, the decision-making and preparation time is minimized, allowing quick adaptation to changing environments without extensive lens selection during the replacement process.

Inventive Principle:
Principle #10Preliminary action

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

Enables users to easily switch between different lens properties and types, ensuring optimal vision and comfort across various activities, including sports and harsh weather conditions, while maintaining a secure and aesthetically pleasing fit.

Implementation Method 1

the coupling is done without the use of tools, but primarily by a mere elastic deformation of the coupling elements themselves or the spectacles frame/mount

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11143883B2Spectacles with interchangeable lenses
Publication Date: 2021.10.12 LINDBERG AS
  • US11143883B2 patent drawing
  • US11143883B2 patent drawing
  • US11143883B2 patent drawing

AI summary

Spectacles with interchangeable eyeglass lenses (2), where the spectacles comprise a spectacles frame (1) and eyeglass lenses (2), where the eyeglass lenses comprise a mount (3) which is secured to an outer edge of the eyeglass lenses, and where at least one of the mount and the spectacles frame comprises a coupling element (8), which can couple together the mount (3) and the spectacles frame (1), thereby producing a spectacles frame in which the eyeglass lenses can be replaced as desired. Furthermore, the mount or the spectacles frame comprises an oblong recess (5) designed to receive a partial section (7) of the spectacles frame or a bulge on the mount. Said spectacles are suitable for use at work, bicycling in blustery weather, or skiing in harsh sunlight.