Shared Rotating Shaft Diaphragm Assembly for Compact Aperture Control
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Solution Overview
Problem
Conventional light controlling apparatuses with dual diaphragm blades are complex and difficult to assemble due to simultaneous drive requirements, complicating the structure and hindering further miniaturization.
Innovation Solution
A light controlling apparatus with first and second light controlling means that share a rotating shaft member and coupling mechanism, allowing them to rotate with the same axis, simplifying assembly and enabling further miniaturization by reducing the need for separate drive sources and shafts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each diaphragm blade is driven by a separate drive source, then the driving control is independent and precise, but the structure becomes complicated and assembly becomes extremely difficult
Solution Approach 1:
The patent merges the drive sources for the first and second diaphragm blades into a single shared drive source. The drive source is coupled to rotate the first diaphragm blade, and through the coupling mechanism, also rotates the second diaphragm blade. This consolidation reduces the number of components and simplifies the overall structure while maintaining the ability to control both blades independently through the coupling relationship.
Solution Approach 2:
The single drive source is designed to perform multiple functions: it drives both the first diaphragm blade and the second diaphragm blade through the coupling mechanism. This multi-functional design eliminates the need for separate drive sources for each blade, thereby reducing structural complexity while preserving driving control capabilities.
2Ease of operation
If separate rotating shafts are used for each diaphragm blade, then each blade can rotate independently, but the number of components increases and assembly becomes difficult
Solution Approach 1:
The patent combines the rotating shafts into a single shared rotating shaft that serves both diaphragm blades. The first diaphragm blade is directly coupled to the rotating shaft, and the second diaphragm blade is coupled to the first diaphragm blade through a coupling mechanism. This allows both blades to rotate independently while using a single shaft component, reducing the total number of parts and simplifying assembly.
3Adaptability or versatility
If conventional diaphragm blade structures are used, then the optical aperture can be regulated, but the size cannot be reduced further for portable equipment
Solution Approach 1:
The patent merges the drive mechanisms and rotating shafts into a compact integrated structure. By sharing a single drive source and a single rotating shaft, the overall volume of the optical apparatus is reduced. The coupling mechanism between the diaphragm blades and the rotating shaft is designed to minimize space requirements while maintaining the optical aperture regulation function.
Solution Approach 2:
The patent employs a nested arrangement where the second diaphragm blade is coupled to the first diaphragm blade, and both are associated with the same rotating shaft. This nested structure allows the components to be arranged in a space-efficient manner, reducing the overall size of the optical apparatus while preserving the aperture regulation capability.
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 simplifies the structure, improves assemblability, and allows for further size reduction while stabilizing the driving force required for diaphragm blade operation, facilitating more efficient and stable operation.
Implementation Method 1
the drive source is an electromagnetic drive source which includes a yoke and a winding coil, and the circular cylindrical shaped magnet is rotated by the electromagnetic drive source
Data Source
AI summary
A light controlling apparatus includes a substrate in which an optical aperture is formed, a first light controlling means and a second light controlling means, each having an optical aperture regulating portion, and a drive source which operates the first light controlling means and the second light controlling means. The first light controlling means and the second light controlling means move mutually to a first stationary position retracted from a position of the optical aperture and a second stationary position which overlaps with the position of the optical aperture. A rotating shaft member is formed integrally with the first light controlling means. A coupling portion is formed on at least one of the first light controlling means and the second light controlling means, and the first light controlling means is rotated by rotating the rotating shaft member by the drive source, and the second light controlling means is also rotated in conjunction by the coupling portion. The first light controlling means and the second light controlling means rotate with the same axis of rotation as a center of rotation.