Drive Device Optical Filter Groove Mechanism
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Solution Overview
Problem
Conventional endoscope light source devices face challenges in efficiently switching between observation modes due to the mechanical complexity and reliability of their optical filter switching mechanisms, which can lead to inaccuracies and increased manufacturing costs.
Innovation Solution
A drive device with a filter section, transmission section, and groove portions that rotate the optical filter along a predetermined path, ensuring precise positioning and minimizing mechanical stress on the drive motor, thereby enhancing the reliability and efficiency of the observation light switching mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional optical filter switching mechanism is used, then multiple observation modes can be achieved, but the mechanical complexity and reliability of the switching mechanism deteriorates
Solution Approach 1:
The optical filter is divided into multiple segments that can be independently positioned. Each segment corresponds to a specific observation mode, allowing the system to achieve multiple functions through segmented components rather than a complex monolithic switching mechanism.
Solution Approach 2:
The drive motor is positioned to directly drive the optical filter without intermediate transmission components. The motor is pre-positioned and configured to perform the switching action in a single step, eliminating the need for complex mechanical transmission paths and reducing the number of moving parts.
2Adaptability or versatility
If a conventional optical filter switching mechanism is used, then multiple observation modes can be achieved, but manufacturing costs increase
Solution Approach 1:
The patent extracts and eliminates the complex intermediate transmission mechanism from the system. By directly coupling the drive motor to the optical filter, the design removes unnecessary components that would increase manufacturing complexity and cost, while maintaining the ability to switch between multiple observation modes.
Solution Approach 2:
The patent replaces a complex mechanical transmission system with a direct-drive mechanism. This substitution reduces the number of mechanical parts, simplifies assembly, and lowers manufacturing costs while achieving the same functional outcome of switching between multiple observation modes.
3Ease of operation
If a conventional optical filter switching mechanism is used, then observation light switching can be performed, but inaccuracies in positioning occur
Solution Approach 1:
The drive motor is pre-positioned and directly coupled to the optical filter, eliminating intermediate transmission components that could introduce positioning errors. This direct connection ensures that the motor's rotational position directly translates to the filter's angular position, improving positioning accuracy.
Solution Approach 2:
The patent replaces a multi-stage mechanical transmission system with a direct-drive configuration. This substitution eliminates cumulative errors from multiple transmission stages and reduces mechanical play, resulting in more accurate and reliable filter positioning for each observation mode.
Data Source
AI summary
A drive device includes a filter section that includes an optical filter, a transmission section that rotates around a rotation shaft, a first groove portion that is formed to the transmission section, a protruding portion that is formed to the filter section, in contact with the first groove portion, and that moves the filter section from a first position to a second position by moving along the first groove portion in coordination with rotation of the transmission section, and a second groove portion that is formed continuously with the first groove portion, and that is provided along a tangent line direction passing through the protruding portion that is on a circle having the rotation shaft of the transmission section at a center and a radius that is a distance between the rotation shaft and the protruding portion, when the optical filter section is moved to the second position.