Aperture Assembly with Non-Circular Shape for Thin Devices
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Solution Overview
Problem
The challenge is to develop lightweight electronic devices equipped with camera lenses that have a large aperture size, while also allowing for aperture adjustment to improve photo quality, which is restricted by the size reduction of camera lenses.
Innovation Solution
The aperture assembly includes a plate with a non-circular hollow portion and two aperture sheets that move in different directions to adjust the aperture size, allowing for a large aperture size and adjustable depth of field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the size of camera lenses is reduced to make electronic devices lightweight and thin, then the device thickness and weight are reduced, but the aperture size is also reduced
Solution Approach 1:
The patent employs dynamic aperture adjustment through movable aperture sheets that can change the aperture size after the camera lens is assembled. This allows the aperture to be adjusted independently of the lens size, resolving the contradiction between thin device design and large aperture requirement.
Solution Approach 2:
The patent introduces a non-circular aperture shape with multiple dimensions for adjustment. By using rectangular or square aperture shapes instead of circular ones, and allowing independent movement of aperture sheets along different axes, the patent achieves larger effective aperture area within the same lens diameter.
2Area of stationary object
If the plate size is reduced to fit thin electronic devices, then the device becomes thinner, but the aperture size defined by the circular hollow portion is reduced
Solution Approach 1:
The patent transitions from a symmetric circular aperture to an asymmetric non-circular aperture (rectangular or square). This allows the aperture to extend closer to the edges of the reduced-size plate, maximizing the aperture area relative to the plate area and enabling larger apertures in smaller devices.
3Device complexity
If a fixed aperture design is used to simplify the structure, then the device complexity is reduced, but the ability to adjust depth of field and photo quality is lost
Solution Approach 1:
The aperture structure is segmented into multiple independent movable aperture sheets rather than a single fixed component. Each sheet can move independently along different axes, enabling versatile aperture size adjustment while keeping each individual sheet's structure simple and manageable.
Data Source
AI summary
The present application provides an aperture assembly. The aperture assembly is used in an optical lens system. The aperture assembly includes a plate including a hollow portion and a non-hollow portion. The hollow portion is configured to define an aperture of the optical lens system, wherein the contour of the hollow portion has a non-circular shape. The aperture assembly can prevent the size of the aperture from being reduced as the size of the plate is reduced in a case that a circular aperture is applied to the plate. The present application also realizes an aperture adjustment for a non-circular aperture.