Liquid Crystal Lens Voltage Control for Image Sensor Light Saturation
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Solution Overview
Problem
The light efficiency of image sensors in imaging devices is easily saturated, reducing the dynamic range and affecting the imaging effect of pictures.
Innovation Solution
An imaging device with a liquid crystal lens assembly comprising oppositely disposed first and second liquid crystal components, whose orientations are perpendicular to each other, and a processing assembly that adjusts voltage to control the focal position of light emitted by the liquid crystal lens, ensuring optimal light efficiency based on the amount of light received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a liquid crystal lens is used to focus light onto the image sensor, then the imaging function is achieved, but the light efficiency of the image sensor is easily saturated, reducing the dynamic range
Solution Approach 1:
The patent applies a dynamic adjustment mechanism where the liquid crystal lens changes its focal position in real-time based on the detected light intensity. The processing assembly adjusts the voltage applied to the liquid crystal lens according to the amount of light received, enabling the system to adapt dynamically between different lighting conditions and prevent saturation while maintaining optimal focus.
Solution Approach 2:
The patent changes the focal position parameter of the liquid crystal lens based on the detected light intensity. By adjusting the voltage parameter of the liquid crystal lens according to the light amount detected by the image sensor, the system optimizes the focal position to match the actual lighting conditions, preventing saturation and expanding the dynamic range.
2Ease of operation
If the focal position is fixed, then the imaging device is simple to operate, but the light efficiency cannot be optimized for varying light intensities
Solution Approach 1:
The imaging device performs self-adjustment by automatically detecting the light intensity through the image sensor and autonomously adjusting the focal position of the liquid crystal lens. The processing assembly uses the detected light amount to automatically modify the voltage applied to the liquid crystal lens, eliminating the need for manual intervention while optimizing light efficiency for different lighting conditions.
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 solution dynamically adjusts light efficiency to enhance the imaging quality by optimizing the focal position of light on the image sensor, thereby improving the dynamic range and applicable range for varying light intensities.
Implementation Method 1
each of the light control components includes: a first liquid crystal component and a second liquid crystal component which are disposed oppositely with each other, and the orientation of the liquid crystal molecules in the first liquid crystal component and the orientation of the liquid crystal molecules in the second liquid crystal component are perpendicular to each other
Implementation Method 2
a processing assembly, electrically connected with both the image sensor assembly and the liquid crystal lens assembly and configured to adjust a voltage applied to the light control components so that the light control components adjust a focal position of emitted light
Implementation Method 3
an image sensor assembly, including a plurality of image sensor components distributed in an array
Data Source
AI summary
An imaging device, an imaging control method, an electronic apparatus, and a readable medium. The imaging device comprises: an image sensing assembly; a liquid crystal lens assembly provided with light control components corresponding to an image sensing component, wherein each of the light control components comprises a first liquid crystal component and a second liquid crystal component, which are arranged opposite each other, and the orientation of liquid crystal molecules in the first liquid crystal component is perpendicular to the orientation of liquid crystal molecules in the second liquid crystal component; and a processing assembly, wherein the processing assembly is respectively electrically connected to the image sensing assembly and the liquid crystal lens assembly, and is configured to adjust, according to a light receiving amount measured by the image sensing assembly, the voltage applied to the light control component.