Modular Spectacle Frame with Attachable Additional Lens Unit
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Solution Overview
Problem
Conventional spectacles with multiple vision correction ranges, such as bifocal, trifocal, and varifocal lenses, require continuous adjustment of the user's head posture and focus to achieve clear vision across different distances, and often necessitate carrying multiple pairs of glasses for different environments.
Innovation Solution
A spectacle frame with varifocal lens disks and an additional frame with single-vision or varifocal lens disks that can be easily attached or detached using a spring-loaded connecting member, allowing for customizable vision correction across various distances without the need for multiple pairs of glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bifocal or trifocal lens disks are used to provide vision correction for multiple distances, then vision correction for different distances is achieved, but the user experiences visible dividing lines and requires continuous customization of visual focus and head posture
Solution Approach 1:
The invention divides the vision correction system into separate modular components: a base spectacle frame with one type of lens disk and an additional frame with another type of lens disk that can be attached or detached. This segmentation allows the user to switch between different vision correction configurations without dealing with complex progressive zones in a single lens, thereby improving ease of operation while maintaining adaptability for multiple distances.
Solution Approach 2:
The invention introduces dynamic configurability by allowing the additional frame to be attached or detached from the base frame. This dynamic adjustment enables the user to adapt the vision correction system to different situations and distances by simply adding or removing the additional frame, eliminating the need for continuous head posture customization required by static progressive lenses.
2Measurement precision
If varifocal lens disks with progression zones are used to achieve sharp vision in all distances, then vision acuity across multiple distances is improved, but the progression zone becomes smaller with higher addition and requires continuous adjustment of visual focus and head posture
Solution Approach 1:
The invention segments the vision correction into distinct functional layers: the base frame provides primary vision correction while the additional frame with its own lens disks provides supplementary correction for specific distances. This segmentation eliminates the problematic narrow progression zone of traditional varifocal lenses by distributing correction functions across separate attachable components, maintaining high visual acuity while improving ease of operation.
3Measurement precision
If interview spectacles are used to optimally cover the middle field of view, then vision for middle distances is improved, but the user must possess at least two pairs of spectacles and always change them as required
Solution Approach 1:
The invention merges the functionality of multiple separate spectacle pairs into a single integrated system. The base spectacle frame can accommodate different additional frames with different lens disk configurations, allowing the user to switch between middle-distance optimization and other vision correction needs by simply attaching or detaching the additional frame rather than changing entire spectacle pairs, thereby reducing device complexity.
Solution Approach 2:
The base spectacle frame is designed as a universal platform that can work with multiple types of additional frames. This multi-functionality allows a single base frame to serve multiple vision correction purposes by pairing with different additional frames, eliminating the need to maintain multiple dedicated spectacle pairs for different situations.
4Adaptability or versatility
If multiple pairs of spectacles are carried for different environments and distances, then customized vision correction for specific situations is achieved, but portability and convenience are reduced
Solution Approach 1:
The invention combines multiple vision correction functionalities into a single wearable system by integrating an additional frame with attachable lens disks into the base spectacle frame. This merging allows the user to carry only one base frame while achieving customized vision correction for different situations by attaching the appropriate additional frame, significantly improving portability and ease of operation compared to carrying multiple separate spectacle pairs.
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 clear and comfortable vision across a wide range of distances with reduced need for frequent adjustments and carrying multiple pairs of glasses, providing increased comfort and cost-effectiveness by allowing a single spectacle frame with an additional frame that can be easily swapped for different environments.
Implementation Method 1
The connecting member is arcuate and spring-loaded. Manually stretching the connecting member causes the mounting parts to move apart from one another and enables attachment of the additional frame to or removal of the additional frame from the spectacle frame.
Data Source
AI summary
Spectacles having a spectacle frame and at least one additional frame that can be placed on the front of the spectacle frame so as to be removable, both frames having lenses made of transparent material. The lenses of the spectacle frame are varifocal lenses for the purpose of correcting vision for different distance ranges in order to achieve in each case maximum or clear visual acuity for at least one distance range, while the lenses of the additional frame are single-vision lenses or varifocal lenses. In combination with the lenses of the spectacle frame, the lenses of the additional frame correct vision in a manner customized to the needs of the user. In a simple, cost-effective and convenient manner, a broad field of sharp vision in all distance ranges is afforded to the user, and therefore significantly improved vision comfort tailored to their requirements is provided.