Imaging System Perceived Resolution Control via Light Source Brightness
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Solution Overview
Problem
Current optical systems, such as microscopes, lack the ability to control resolution effectively without an integrated aperture stop, which limits user experience in imaging systems.
Innovation Solution
A device with interface and processing circuitry that adjusts the brightness of a light source based on user feedback and eye-tracking sensor data to control perceived resolution, utilizing the pupil diameter as a dynamic aperture stop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an aperture stop is integrated into the optical system to control resolution, then the resolution control capability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent replaces the mechanical aperture stop with a computational approach. The processing circuitry calculates a virtual aperture stop position based on the light source position and optical parameters, then uses this calculated position to control the effective resolution without any physical aperture component. This substitutes mechanical resolution control with computational control.
Solution Approach 2:
The patent introduces an intermediary computational step between the light source and the image formation. The processing circuitry acts as an intermediary that calculates the effective aperture stop position based on the light source position and optical parameters, mediating the relationship between illumination and resolution without requiring a physical aperture component.
2Measurement precision
If the light source brightness is increased to improve perceived resolution through pupil adaptation, then the perceived resolution is improved, but the user comfort and image quality may deteriorate due to excessive brightness
Solution Approach 1:
The patent implements a feedback mechanism where the processing circuitry continuously monitors the light source position and optical parameters, calculates the effective aperture stop position, and adjusts the light source brightness accordingly. This closed-loop feedback ensures that the perceived resolution is optimized while maintaining appropriate brightness levels that do not compromise user comfort or image quality.
Solution Approach 2:
The patent dynamically changes multiple parameters including light source brightness, light source position, and the calculated virtual aperture stop position. By coordinating these parameter changes, the system achieves improved perceived resolution through controlled pupil adaptation while preventing excessive brightness that would harm user comfort.
3Measurement precision
If a physical aperture stop is added to control resolution, then the resolution control is improved, but the optical system design and alignment become more difficult
Solution Approach 1:
The patent eliminates the need for a physical aperture stop by substituting it with a computational model. The processing circuitry calculates the effective aperture stop position based on light source position and optical parameters, removing the manufacturing and alignment complexity associated with integrating a physical aperture component into the optical system.
Solution Approach 2:
The patent extracts the resolution control function from the physical optical components and relocates it to the computational domain. By taking out the aperture stop from the optical system and representing it as a calculated virtual position, the patent simplifies the optical design and manufacturing while preserving the resolution control capability.
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
Enhances user experience by optimizing perceived resolution and reducing pixel visibility, allowing for improved imaging system performance without altering the optical components.
Implementation Method 1
the brightness of the light source may be increased such that a pupil of a user adapts to the brightness resulting in an improved perceived resolution of the display
Implementation Method 2
the information may be obtained by receiving an output signal from the eye-tracking sensor indicative of a status of an eye of a user
Data Source
Figure 1a~1b
Figure 2~3
Figure 4~5b
AI summary
A device 130 for controlling a perceived resolution of an imaging system is provided. The device 130 comprises interface circuitry 132 configured to communicate with a display device 148 of the imaging system and a processing circuitry 134 configured to control the interface circuitry 132. Further, the processing circuitry 134 is configured to obtain information about a desired brightness change of a light source of the display device 148 and to adjust a brightness of the light source based on the information to control the perceived resolution of a display of the display device 148.