Faceted Lens Barrel Layout for Compact High-Resolution Cameras
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Solution Overview
Problem
Existing camera devices face challenges in achieving high optical performance and compact size due to difficulties in managing aberration properties and lens barrel dimensions, especially when multiple lenses are used, leading to increased area occupation and reduced effective usage on displays or touch panels.
Innovation Solution
The camera device incorporates a lens barrel design with a head part and extension part having specific geometric configurations, including inclined inner side surfaces and controlled dimensions, allowing for a compact form factor while maintaining optical performance by minimizing the exposed area and aberration correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple lenses are used to achieve high resolution, then optical performance is improved, but the lens barrel size and area occupation increase
Solution Approach 1:
The patent applies dimensionality change by transitioning from a conventional cylindrical lens barrel to a multi-faceted barrel structure with inclined surfaces. The lens barrel includes a first barrel surface and a second barrel surface that are inclined relative to each other, creating a three-dimensional faceted geometry. This allows the barrel to accommodate multiple lenses while reducing the projected area on the display surface, effectively solving the contradiction between optical performance and area occupation.
Solution Approach 2:
The patent employs asymmetry by designing the lens barrel with non-uniform geometric features. The first and second barrel surfaces are inclined at different angles, and the barrel includes protrusions and recesses that are asymmetrically positioned. This asymmetric design optimizes the spatial arrangement of multiple lenses within the barrel, enabling high-resolution optical performance while minimizing the overall area occupied on the display device.
2Measurement precision
If multiple lenses are arranged to improve optical properties, then imaging quality is enhanced, but aberration properties become difficult to control
Solution Approach 1:
The patent applies local quality by designing specific optical characteristics for different regions of the lens system. The multi-faceted barrel structure creates distinct optical paths through the inclined surfaces, allowing each region to contribute differently to aberration correction. The asymmetric geometry is strategically designed to compensate for specific aberrations introduced by the multiple lenses, thereby controlling overall optical performance while maintaining imaging quality.
3Area of stationary object
If the lens barrel is made compact to reduce area occupation, then device integration is improved, but structural integrity and reliability may be compromised
Solution Approach 1:
The patent applies segmentation by dividing the lens barrel into distinct functional regions with specific geometric features. The barrel is segmented into a first barrel portion with a first inclined surface and a second barrel portion with a second inclined surface, along with associated protrusions and recesses. This segmentation allows each region to be optimized for both compactness and structural integrity, ensuring that the reduced area occupation does not compromise the reliability of the overall lens assembly.
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
The design achieves improved optical characteristics with high-definition and high-resolution imaging, reduces the non-effective region, and enhances reliability by minimizing the lens barrel's size and maintaining structural integrity.
Implementation Method 1
an imaging lens for forming an image... a plurality of lenses which are sequentially arranged from an object side to an image side along an optical axis
Implementation Method 2
an image sensor for converting the formed image into an electrical signal
Data Source
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AI summary
The camera device disclosed to an embodiment includes a plurality of lenses which are arranged sequentially along an optical axis from an object side to an image side, and a lens barrel in which the plurality of lenses is received and which has an incident hole formed on an image surface thereof, wherein the lens barrel includes the plurality of lenses. A head part disposed in a region corresponding to a lens closest to an object side of the lens, and an upper portion of the head part may have a smaller length than that of a lower portion of the head part in a vertical direction of the optical axis.