Endoscope Light Source Lens Protrusion for Compact Multi-Mode Design
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Solution Overview
Problem
Existing light source devices for endoscopes are limited in their ability to provide multiple special light observation modes without increasing the device's size, as adding more optical filters often results in interference with other components and displacement of the lamp, leading to a larger device.
Innovation Solution
The light source device incorporates a light-condensing device with a lens holder and a lens holding member that protrudes the lens to match the optical axis of the illumination light, allowing for multiple optical filters without increasing the device's size by bringing the rotary motor closer to the lens, thus preventing interference and maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple optical filters are added to enable various special light observation modes, then the adaptability of the light source device is improved, but the device size increases due to interference with other components and displacement of the lamp
Solution Approach 1:
The lens is made to protrude from the lens holder in a direction parallel to the optical path, utilizing the lateral dimension to adjust the optical axis position. This allows the rotary motor to be positioned closer to the lens without increasing the overall device volume, as the adjustment occurs in a dimension that does not expand the device footprint.
Solution Approach 2:
The lens holding member is designed to be movable, allowing the lens to be adjusted dynamically to different positions. This dynamic adjustment capability enables the optical axis to be precisely positioned relative to the rotary motor and filters, facilitating compact arrangement of multiple components without fixed interference.
2Device complexity
If the rotary motor is positioned closer to the lens to reduce device size, then the device complexity is reduced, but the lens optical axis may not align with the illumination light optical axis
Solution Approach 1:
The lens holding member is designed to be movable, allowing the lens to be dynamically adjusted to different positions. This dynamic adjustment capability enables the optical axis to be precisely positioned relative to the rotary motor and filters, facilitating compact arrangement of multiple components without fixed interference.
Solution Approach 2:
The position of the lens is changed as a variable parameter through the movable lens holding member. By adjusting the lens position parameter, the optical axis alignment can be optimized to match the illumination light path, even when the rotary motor is positioned closer to the lens for compact design.
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
This configuration enables the light source device to support various special light observation modes without increasing its size, ensuring efficient illumination and compactness, allowing for multiple special light observations without compromising the device's dimensions.
Implementation Method 1
a light-condensing device that condenses an illumination light that is emitted from a light source lamp
Data Source
AI summary
A light source device includes a light-condensing device that condenses an illumination light that is emitted from a light source lamp. The light-condensing device includes at least one lens, a lens holder in which a lens is fixedly provided, and a lens holding member. The lens holding member is a member for fixing a lens to the lens holder. The lens holding member causes at least one circumferential portion of the lens to protrude to the lens holder side, and causes the optical axis of the lens to match the optical axis of the illumination light.