Rotatable Lens Front Cover for Ophthalmoscope Alignment
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Solution Overview
Problem
Conventional large-sized ophthalmoscopes for ocular fundus examination are bulky, costly, and require significant time and professional operation, making it difficult to popularize due to the need for multiple moving mechanisms and complex adjustments to capture clear images of the fundus.
Innovation Solution
An imaging apparatus with a rotatable lens and front cover connected through a universal joint, allowing for adjustable optical axes and user-guided image capture at various angles, including a control unit and display interface to assist in aligning and capturing images of the fundus efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large-sized ophthalmoscope with multiple moving mechanisms is used to capture clear fundus images, then image quality is improved, but device complexity and bulkiness increase
Solution Approach 1:
The patent extracts the essential imaging function from the complex ophthalmoscope system, retaining only the lens and imaging unit while removing unnecessary moving mechanisms and adjustments, thereby simplifying the device structure while maintaining imaging capability
Solution Approach 2:
The patent makes the lens rotatable to perform multiple functions: capturing images at different angles, examining different parts of the fundus, and replacing the need for multiple specialized mechanisms, thereby reducing overall device complexity
2Adaptability or versatility
If multiple moving mechanisms and driving devices are equipped in the ophthalmoscope for focusing on different parts of the fundus, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The patent introduces a rotatable lens mechanism that dynamically adjusts the optical axis angle, enabling the single lens to adaptively focus on different parts of the fundus by rotating to appropriate angles, replacing static multiple mechanisms with a dynamic single mechanism
Solution Approach 2:
The patent changes the orientation parameter of the lens by rotation, allowing the optical axis to point at different angles and thus examine different regions of the fundus, achieving adaptability through parameter variation rather than structural complexity
3Measurement precision
If a large-sized ophthalmoscope with professional operation requirements is used, then image quality is improved, but ease of operation deteriorates
Solution Approach 1:
The patent enables the device to guide itself through automatic angle detection and display, where the system automatically determines the current lens angle and provides visual feedback to the user, eliminating the need for professional operation skills while maintaining imaging quality
4Adaptability or versatility
If multiple moving mechanisms are used for fundus imaging, then adaptability is improved, but time consumption increases
Solution Approach 1:
The rotatable lens allows rapid dynamic adjustment between different imaging angles, enabling quick switching between different fundus regions without the time-consuming sequential adjustments required by multiple fixed mechanisms
Solution Approach 2:
The continuous rotation capability of the lens allows uninterrupted imaging across different angles, maintaining continuous useful action rather than requiring stopping and adjusting multiple discrete mechanisms, thereby reducing time consumption
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 efficient and flexible image capture of the ocular fundus at multiple angles, reducing the complexity and cost of equipment while improving the speed and quality of ocular examinations, making it more accessible and cost-effective for clinical use.
Implementation Method 1
The front cover is rotatably connected to the lens through a universal joint
Data Source
AI summary
An imaging apparatus configured to capture an image of an object to be detected is provided. The imaging apparatus includes an imaging unit, a lens, and a front cover. The lens is located on the imaging unit and has a first optical axis. The front cover is rotatably connected to the lens. Relative locations of the front cover and the object are fixed by the leaning-against of the front cover. The lens is rotated with respect to the front cover, so that the first optical axis is rotated with respect to the object.