Logarithmic Magnifier Sets for Low Vision Rehabilitation
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Solution Overview
Problem
Existing magnifiers for low vision rehabilitation lack a rational design and accurate labeling, making it difficult for professionals to prescribe the correct level of magnification, and for users to understand the actual magnification power.
Innovation Solution
A set of magnifiers with a systematic progression of magnification powers in logarithmic increments, including spectacle, hand-held, stand, and electronic magnifiers, accurately labeled in diopters or enlargement ratios to ensure consistent and predictable magnification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnifiers are provided with self-contained LED illumination and commonly used labeling, then ease of operation is improved, but manufacturing precision and measurement precision deteriorate due to lack of rational design and inaccurate labeling
Solution Approach 1:
The patent changes the labeling parameter from conventional arbitrary magnification labels to scientifically accurate diopter values and enlargement ratios. This parameter change ensures that the labeled values accurately reflect the actual optical power and magnification capability of each magnifier, resolving the contradiction between ease of operation and measurement precision.
2Ease of operation
If magnifiers are chosen without professional guidance in retail context, then ease of operation is improved, but reliability deteriorates due to incorrect magnification selection
Solution Approach 1:
The patent enables self-service selection of appropriate magnifiers by providing clear, accurate labeling with diopter values and enlargement ratios. Users can independently select the correct magnification level based on their visual needs and the labeled specifications, eliminating the need for professional guidance while ensuring reliable and appropriate magnifier selection.
3Ease of manufacture
If conventional magnification labeling is used, then ease of manufacture is improved, but loss of information increases due to meaningless power labels
Solution Approach 1:
The patent changes the labeling parameter from conventional arbitrary magnification labels to scientifically accurate diopter values and enlargement ratios. This parameter change ensures that the labeled values accurately reflect the actual optical power and magnification capability of each magnifier, resolving the contradiction between ease of operation and measurement precision.
Data Source
AI summary
A method is presented that includes providing a set of spectacle magnifiers, each magnifier in the set having a different corresponding diopter value, the magnifiers together providing a sequence of evenly incremented diopter values. The set further includes a magnifier having a lowest value (MAG0), a magnifier having a highest value (MAGN), and one or more magnifiers having values between those of MAG0 and MAGN. In one or more embodiments, the diopter value increment between any two successive magnifiers of the set is equal to K(0.1) log, where K is an integer >0 or a fraction whose denominator is an integer >0. In one or more embodiments, one or more elements of the set are packaged for sale. In some embodiments, a set of optical, telescopic, or electronic magnification devices may be provided, the set including one or more devices configured to provide non-rectilinear magnification.