Pupil Size Sensor Display Luminosity Control
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Solution Overview
Problem
Current devices with display brightness adjustment mechanisms based on ambient light or time of day may not optimize user comfort and clarity of displayed content, as they do not account for individual pupil size variations.
Innovation Solution
A computer-implemented method that senses the user's pupil size and adjusts the display's luminosity to a setpoint between 3.0 mm to 4.0 mm, using a pupil size sensor and control algorithms to maintain optimal vision clarity, by incrementing or decrementing brightness based on the measured pupil size difference from the setpoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If display brightness is adjusted based on ambient light or time of day, then energy consumption is reduced and basic user comfort is improved, but individual vision optimization is not achieved due to ignoring pupil size variations
Solution Approach 1:
The system changes the display luminosity parameter based on the detected pupil size parameter. By measuring the user's pupil diameter and comparing it to a setpoint value, the system dynamically adjusts brightness to optimize vision clarity for each individual user, moving beyond generic ambient light-based adjustments.
Solution Approach 2:
The system uses the user's own physiological response (pupil size) as feedback to automatically adjust display settings. The pupil size sensor detects natural pupil constriction or dilation in response to display brightness, creating a closed-loop system that self-regulates without requiring manual user input about individual vision needs.
2Ease of operation
If manual brightness adjustment is implemented, then user control is improved, but automation and convenience are reduced
Solution Approach 1:
The system implements automatic feedback control by continuously monitoring pupil size and adjusting luminosity accordingly. The pupil size sensor provides real-time feedback on the user's visual system response, and the controller automatically modifies display brightness to maintain optimal viewing conditions without requiring manual intervention.
3Object-affected harmful factors
If blue filters are used for nighttime viewing, then eye strain is reduced, but color accuracy and overall vision clarity may be compromised
Solution Approach 1:
Instead of using fixed blue light filters, the system dynamically changes the luminosity parameter based on real-time pupil size measurements. This allows for precise, individualized brightness control that optimizes vision clarity while reducing eye strain, adapting to each user's physiological response rather than applying a one-size-fits-all spectral modification.
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
This approach ensures that the display brightness is optimized for the user's pupil size, enhancing the perceivability of content by maintaining the pupil at an optimal diameter, thereby reducing eye strain and improving vision clarity.
Implementation Method 1
sensing a pupil size of a user of the computer
Data Source
AI summary
A computer device implemented method includes displaying, via the computer device, content on a display device, sensing a pupil size of a user of the computer, and adjusting a luminosity setting of the display device based on the sensed pupil size and a pupil size setpoint.