Suction Collet Contact for Fabry-Perot Filter Handling
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Solution Overview
Problem
The challenge is to develop a suction method for Fabry-Perot interference filters that prevents breakage of the movable mirror while ensuring stable suction and holding, as conventional methods either risk breaking the mirror with contact or result in unstable suction when avoiding contact.
Innovation Solution
A suction method using a suction collet that contacts the thinned portion of the Fabry-Perot interference filter, creating a space between the collet and the laminated structure, allowing air intake to suction the filter without direct contact with the membrane structure, thereby stabilizing the suction and holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction collet contacts the movable mirror to perform suction, then stable suction holding is achieved, but the movable mirror may break
Solution Approach 1:
The patent introduces a thinned portion as an intermediary structure between the suction collet and the membrane structure. The suction collet contacts this thinned portion (which is part of the substrate and mechanically stronger) rather than directly contacting the fragile membrane structure, thereby achieving stable suction without risking mirror breakage
Solution Approach 2:
The substrate is designed with non-uniform thickness: a thinned portion is created at the specific location where suction contact is needed. This local modification allows the suction collet to contact a region with sufficient mechanical strength while the rest of the membrane structure remains intact and functional
2Object-affected harmful factors
If the suction collet avoids contact with the membrane structure to prevent breakage, then mirror safety is improved, but suction holding becomes unstable
Solution Approach 1:
The thinned portion serves as a mediator that enables suction contact without involving the membrane structure. It provides a contact interface for the suction collet that is mechanically sound, ensuring reliable holding while keeping the membrane structure untouched and safe
3Ease of operation
If general suction tools are used on the membrane structure, then suction is achieved, but the membrane structure may break
Solution Approach 1:
The substrate is locally modified with a thinned portion at the suction contact point, creating a region with appropriate mechanical properties for suction operations. This localized structural change enables the use of general suction tools without risking damage to the overall membrane structure
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 method enables stable suction and holding of Fabry-Perot interference filters without breaking the membrane structure, ensuring effective handling and conveyance while minimizing risk to the movable mirror.
Implementation Method 1
a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step, in which the inside of the space is exhausted by the air intake through the opening
Data Source
AI summary
A suction method is provided as a method of performing, by using a suction collet, suction of a Fabry-Perot interference filter including: a substrate; a laminated structure that is provided on the substrate and that includes a main surface facing a side opposite to the substrate; and a thinned portion that is located outside the laminated structure when viewed in a direction intersecting the main surface and that is recessed to a side of the substrate with respect to the main surface, the method including: a first step of arranging the suction collet so as to face the main surface; a second step of bringing the suction collet into contact with the Fabry-Perot interference filter after the first step; and a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step.