Ophthalmic Lens Reflection Comparison for Anti-Reflective Testing
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Solution Overview
Problem
Existing methods for demonstrating and testing the effectiveness of antireflection treatments on ophthalmic lenses are inaccurate and dependent on observation conditions, lacking a standardized protocol.
Innovation Solution
A device comprising a part with a supporting image face, a mirror face, and a lens positioning face, allowing users to compare reflections of an image on lenses with different antireflection treatments through a mirror, enabling the evaluation of differences in visual reflection levels as low as 0.5%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex spectrometer-type reflection measurement system is used to measure optical properties, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent uses a mirror to create a reflected image of the test object, allowing visual comparison of antireflection treatment effectiveness without requiring complex spectrometer equipment. The mirror produces an optical copy that enables direct visual assessment of reflection differences.
Solution Approach 2:
The patent replaces the mechanical/optical complex spectrometer measurement system with a simple visual observation method using a mirror and human eye, substituting instrumental measurement with direct visual comparison to achieve the same assessment goal with much simpler means.
2Ease of operation
If visual comparison method is used to demonstrate antireflection treatment effectiveness, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent introduces a vertical dimension by positioning the mirror below the test object at a specific angle, creating a reflected image that appears in a different spatial plane. This dimensional arrangement allows simultaneous viewing of multiple reflection points and enables more precise visual comparison than traditional flat-surface methods.
Solution Approach 2:
The mirror acts as an intermediary element between the test object and the observer's eye, mediating the visual comparison process. The mirror reflects light from specific points on the lens to create a controlled visual field that enhances the precision of reflection difference detection while maintaining ease of operation.
3Ease of operation
If no standardized protocol is used for visual comparison, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The patent establishes predetermined positioning arrangements for the test object and mirror at specific distances and angles before the comparison measurement is made. This preliminary setup standardizes the observation conditions, ensuring that measurements are taken under consistent geometric conditions, which improves reliability without complicating the operation.
Solution Approach 2:
The patent defines specific geometric parameters (distances, angles, positioning) for the mirror and test object arrangement that optimize the visual comparison of antireflection treatments. By standardizing these physical parameters, the method achieves reliable and repeatable measurements while maintaining simplicity in operation.
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
The device provides a simple, user-friendly method for opticians and non-trained individuals to accurately compare and evaluate the effectiveness of antireflection treatments on ophthalmic lenses, ensuring consistent results across various conditions.
Implementation Method 1
a second face for supporting said mirror substantially perpendicularly to said first face... in such a manner that when a user looks through said orifice, the user can see the resulting reflection of said image on said lens by means of said mirror
Data Source
AI summary
A device for demonstrating and comparatively testing the effectiveness of an antireflection treatment for an ophthalmic lens, the device comprising an image (2, 20) and a mirror (3, 30). According to the invention, the device further comprises a part (1, 10) having a first face (1A, 10A) for supporting said image (2, 20), a second face (1B, 10B) for supporting said mirror (3, 30) substantially perpendicularly to said first face, and a third face (1C, 10C) for positioning at least one ophthalmic lens, the third face being situated. facing said second face and being provided with a positioning arrangement for positioning said lens (4′, 4″, 40), the arrangement comprising at least one orifice (4A, 4B, 40A) arranged in said third face facing said mirror, in such a manner that when a user looks through said orifice, the user can see the resulting reflection of said image on said lens by means of said mirror (3, 30).