Wavelength-Adaptive Movement Lens Control for Image Stability
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Solution Overview
Problem
Existing imaging technologies face challenges in effectively correcting image shake and shifting images to enhance resolution, particularly in adjusting lens movement based on the wavelength range of light transmitted, which affects image quality and stability.
Innovation Solution
A lens device with a processor-controlled drive mechanism that moves a movement lens along a coordinate plane intersecting the optical axis, allowing precise adjustment of lens movement based on light wavelength, and includes multiple lenses for shake correction and image shifting, with specific control mechanisms for each lens to optimize image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a movement lens is used to correct image shake and shift images, then image stability and resolution are improved, but the complexity of the lens device increases due to additional drive mechanisms and control systems
Solution Approach 1:
The patent combines multiple functions (shake correction and image shifting) into a single movement lens system. The same lens group is used for both correcting image shake and shifting images to different positions, reducing the number of separate components and drive mechanisms needed while maintaining the dual functionality.
Solution Approach 2:
The movement lens is designed to perform multiple functions: it can correct image shake by moving in response to shake detection, and it can shift images to different positions on the imaging sensor for super-resolution imaging. This multi-functional design reduces overall device complexity compared to having separate systems for each function.
2Manufacturing precision
If lens movement is adjusted based on wavelength range of light, then image quality is improved, but the control system complexity and energy consumption increase
Solution Approach 1:
The patent adjusts lens movement parameters based on the wavelength range of incident light. The control unit modifies the movement amount of the movement lens according to whether the light is in the visible range or infrared range, optimizing image quality for different wavelength conditions while managing energy consumption through adaptive control.
Solution Approach 2:
The system uses feedback from wavelength detection to adjust lens movement. The control unit receives information about the wavelength range of incident light and automatically adjusts the movement lens position and movement amount accordingly, ensuring optimal image quality without requiring manual intervention or excessive energy consumption.
3Measurement precision
If multiple drive mechanisms are used to control different lenses, then image correction and shifting precision is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent divides the lens system into fixed lenses and a movable lens group, with the movement lens being a specific portion that can be independently controlled. This segmentation allows precise control of the movement lens for both shake correction and image shifting while keeping the rest of the lens system simpler and easier to manufacture.
Solution Approach 2:
The patent implements a dynamic control system where the movement lens can be actively adjusted based on real-time conditions (shake detection, wavelength range, desired image position). This dynamic capability provides high precision for image correction and shifting while the underlying mechanical structure remains relatively simple, improving manufacturability.
Data Source
AI summary
Provided is a lens device provided in an imaging apparatus body including an image sensor, the lens device including a processor, a memory coupled to or integrated with the processor, a lens that includes a movement lens and that images incident light on the image sensor, and a drive mechanism that moves the movement lens by applying power to the movement lens along a coordinate plane intersecting an optical axis of the lens. The processor is configured to perform, with respect to the drive mechanism, control of changing a movement amount of the movement lens based on a wavelength range of the light transmitted through the movement lens.