Lens Optical Parameter Determination via Flash Reflection Analysis
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Solution Overview
Problem
Current methods for determining optical parameters of lenses, such as spherical power and cylindrical power, in eyeglasses are often cumbersome and require auxiliary optical means, limiting their accessibility and accuracy for duplicating or producing spare lenses.
Innovation Solution
A system and method that uses a computing device with an image capturing capability to analyze captured images of eyeglasses lenses, employing reflections and reference objects to determine optical parameters without auxiliary optical instruments, by calculating relative angles and applying correction factors based on image processing and reflection analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional methods are used to determine optical parameters of lenses, then measurement precision may be maintained, but device complexity and accessibility deteriorate due to requirement of auxiliary optical instruments
Solution Approach 1:
The patent introduces a flash reflection as an intermediary element to determine lens optical parameters. By capturing the reflection of a flash on the lens surface and analyzing its characteristics, the system can derive spherical power, cylindrical power, and cylindrical axis without requiring auxiliary optical instruments. The flash reflection serves as a mediator that carries information about the lens properties that can be extracted through image processing.
Solution Approach 2:
The patent uses a captured image copy of the lens with flash reflection to determine optical parameters. Instead of directly measuring the lens with complex instruments, the system creates an optical copy through photography and analyzes the reflection patterns in the image. This allows parameter determination through digital image analysis rather than direct physical measurement with specialized equipment.
2Measurement precision
If auxiliary optical instruments are used, then measurement precision is maintained, but ease of operation deteriorates due to specialized equipment requirements
Solution Approach 1:
The patent enables the lens itself to provide the information needed for measurement through its interaction with the flash. The lens's optical properties (spherical power, cylindrical power, cylindrical axis) are revealed through the pattern of flash reflection it produces. The system processes this self-generated information to determine parameters without requiring the user to operate complex measurement instruments.
Solution Approach 2:
The patent replaces mechanical/optical measurement systems with an electronic imaging and processing system. Instead of using traditional lensometers or other optical measurement devices that require manual operation, the system uses a camera to capture flash reflections and algorithms to extract optical parameters from the image data, substituting mechanical measurement with electronic detection and computation.
3Measurement precision
If traditional optical measurement methods are employed, then accuracy is maintained, but productivity deteriorates due to cumbersome procedures
Solution Approach 1:
The patent employs a flash-based illumination system that provides periodic, pulsed light to capture lens reflections. The flash occurs at specific moments during the imaging process, allowing rapid capture of the lens optical characteristics. This periodic action enables quick measurement cycles compared to continuous manual adjustment methods, improving the speed of optical parameter determination.
Solution Approach 2:
The patent determines optical parameters by analyzing changes in the flash reflection pattern caused by the lens properties. The system captures how the lens modifies the flash reflection based on its spherical power, cylindrical power, and cylindrical axis, and uses these parameter changes to calculate the lens characteristics. This approach allows rapid measurement through digital analysis of reflection variations rather than slow manual measurement procedures.
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 accurate and efficient determination of optical parameters, allowing for precise duplication or production of spare lenses without the need for specialized equipment, enhancing user convenience and accuracy.
Implementation Method 1
identifying at least one reflection of the flash from at least one surface of the lens
Data Source
AI summary
Some demonstrative embodiments include apparatuses, systems and/or methods of determining one or more optical parameters of a lens of eyeglasses. For example, a product may include one or more tangible computer-readable non-transitory storage media including computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to process at least one captured image of at least one reflection of a flash on a lens of eyeglasses; and determine one or more optical parameters of the lens based at least on the at least one captured image.