Active Lens Management with Dual-Sensor Feedback Control
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Solution Overview
Problem
Existing active lens management systems fail to provide fine control, particularly in responding to specific wearer requirements such as deficiencies, diseases, or injuries, and do not effectively account for light filtering and spectral adjustments.
Innovation Solution
A management system comprising an active lens, a first sensor for incident light data, a second sensor for transmitted light data, and a control unit that adjusts the lens based on feedback from both sensors, allowing for fine control and adaptive filtering of harmful or chronobiological blue light, polarization selection, and spectral adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor is used to control the active lens, then the device complexity is reduced, but the control precision and ability to respond to specific wearer requirements deteriorates
Solution Approach 1:
The system divides the sensing function into two separate sensors: a first sensor for measuring incident light and a second sensor for measuring transmitted light. This segmentation allows each sensor to specialize in specific measurements, improving overall measurement precision and control capability while maintaining manageable system complexity through functional division.
Solution Approach 2:
The system implements feedback control by using the second sensor to measure transmitted light and feed this information back to the control unit. The control unit adjusts the active lens based on this feedback to achieve desired transmission characteristics, enabling precise control and compensation for variations in lens properties and environmental conditions.
2Measurement precision
If feedback control using transmitted light data is implemented, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The control unit receives data from the second sensor regarding transmitted light and uses this feedback to adjust the active lens parameters. This closed-loop feedback mechanism enables precise control of light transmission while the control unit integrates this feedback with data from the first sensor to make coordinated adjustments.
Solution Approach 2:
The control unit is designed to perform multiple functions: processing data from both sensors, controlling the active lens parameters, and implementing feedback control. This multi-functionality consolidates control capabilities into a single unit, improving control precision without proportionally increasing overall system complexity.
3Object-affected harmful factors
If the active lens filters harmful blue light, then the protection against harmful factors is improved, but the loss of useful information deteriorates
Solution Approach 1:
The active lens applies selective filtering by wavelength rather than uniform filtering across all wavelengths. The lens specifically targets harmful blue light wavelengths (400-495 nm) while allowing other beneficial wavelengths to pass through, providing localized protection in the spectral domain. This enables protection against harmful factors while preserving useful visual information in other wavelength ranges.
Solution Approach 2:
The system dynamically adjusts the filtering parameters of the active lens based on environmental conditions and wearer needs. By changing the transmission characteristics of the lens material through electrochromic or liquid crystal effects, the system can optimize the balance between blue light protection and visual information transmission, allowing fine-tuned control over which wavelengths are blocked or transmitted.
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 precise and personalized control of the active lens to optimize light filtering and spectral adjustments, improving comfort and functionality for wearers, particularly in addressing color blindness and light therapy applications.
Implementation Method 1
a first sensor (2) arranged to measure data relating to an incident light on the active lens (1)
Implementation Method 2
the active lens comprises an optical filter for filtering harmful and/or chronobiological blue light
Implementation Method 3
a second sensor (3) arranged to measure data relating to a light transmitted from the incident light through the active lens (1)
Implementation Method 4
controlling the active lens (1) at least according to said data measured by the first sensor (2)
Data Source
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Figure 3~4
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AI summary
The invention relates to the field of management of an active lens and more particularly to a management system comprising an active lens (1), a first sensor (2) arranged to measure data relating to an incident light on the active lens, a control unit (4) designed for controlling the active lens according to data measured by the first sensor, wherein the management system further comprises a second sensor (3) arranged to measure data relating to a light transmitted from the incident light through the active lens, the control unit being further designed to adjust, according to said data measured by the second sensor, the control already performed according to said data measured by the first sensor. Thus the management system allows taking into account data relating to the light passing through the active lens as a feedback in order to finely control the active lens.