Endoscopic Device Segmented Cabinets Phase Modulation
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Solution Overview
Problem
In existing endoscopic devices, the integration of the image sensor mounting portion and the lens unit makes it difficult to perform accurate positioning after repair, leading to a decrease in the depth of field during reassembly.
Innovation Solution
The endoscopic device is designed with a detachable front cabinet unit containing a phase modulation element for the optical system and a rear cabinet unit housing the imaging unit, allowing for separate handling and repair of the optical and electrical systems, and utilizing wavefront coding to enhance the depth of field through a pupil modulation filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the image sensor mounting portion and the lens unit are integrally disposed, then the optical system is compact and simple, but it becomes necessary to detach both components during repair, increasing repair complexity
Solution Approach 1:
The endoscopic device is divided into separate functional modules: the optical system (lens unit) in the front cabinet unit and the imaging unit (image sensor) in the rear cabinet unit. This segmentation allows independent handling and repair of each module, resolving the contradiction by enabling separate repair of the image sensor without detaching the lens unit.
2Ease of repair
If the casings are separated to enable separate repair, then repair efficiency improves, but accurate positioning between the image sensor and the lens unit becomes difficult after reassembly
Solution Approach 1:
Positioning protrusions and positioning grooves are pre-formed on the cabinet units and internal components during manufacturing. These preliminary positioning features ensure that when the front and rear cabinet units are reassembled after repair, the optical system and imaging unit automatically align to their correct relative positions without requiring complex adjustment procedures.
3Ease of operation
If the casings are separated for repair, then component accessibility improves, but the depth of field decreases due to misalignment of the image sensor and the lens unit
Solution Approach 1:
The device is segmented into detachable front and rear cabinet units, allowing the imaging unit to be accessed and replaced independently while maintaining the optical path integrity through pre-formed positioning features.
Solution Approach 2:
The patent introduces a phase modulation element (optical element) that modulates the space distribution of light phase. This optical approach compensates for potential misalignment issues that would otherwise require precise mechanical positioning, thereby maintaining depth of field even when components are reassembled after separate repair.
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 design enables efficient repair by allowing separate handling of the optical and electrical systems, maintaining a deep depth of field even without precise alignment, and effectively prevents a decrease in image clarity during reassembly.
Implementation Method 1
a phase modulation element which modulates a space distribution of a phase of light
Implementation Method 2
an imaging unit which receives light transmitted through the optical system of the front cabinet unit, and converts the light into an electrical signal
Data Source
AI summary
A disclosed endoscopic device includes a front cabinet unit including an optical system provided with a phase modulation element which modulates a space distribution of a phase of light; and a rear cabinet unit detachably connected to the front cabinet unit, the rear cabinet unit including an imaging unit which receives light transmitted through the optical system of the front cabinet unit, and converts the light into an electrical signal.