Lens Assembly with Bending Structure for Compact Optical Device
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Solution Overview
Problem
Conventional optical devices with multiple wide-angle lenses face issues such as degraded image quality at the peripheries, increased size, heat generation, and parallax problems, which affect the performance of capturing high-resolution still and moving images, especially when used in compact electronic devices.
Innovation Solution
The optical device incorporates three or more lens assemblies with bending-type image sensors and a heat-radiating structure, where the lens assemblies are configured to reduce parallax and improve image quality by aligning optical axes to form a regular polygon, and the heat-radiating structure is positioned to efficiently dissipate heat generated by the image sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If three or more wide-angle lens assemblies are configured to achieve omnidirectional imaging, then the image quality of peripheries is improved, but heat generation increases and device size increases
Solution Approach 1:
The patent transitions from a planar arrangement of lens assemblies to a three-dimensional configuration where lens assemblies are positioned at different heights and angles. The bending type image sensors are arranged in a folded configuration, allowing multiple imaging units to be compactly positioned while maintaining omnidirectional coverage. This spatial reconfiguration reduces heat accumulation by distributing heat-generating components across different spatial zones rather than concentrating them in a single plane.
2Manufacturing precision
If three or more wide-angle lens assemblies are configured to achieve omnidirectional imaging, then the image quality of peripheries is improved, but the device size increases
Solution Approach 1:
The patent employs a nested configuration where bending type image sensors are folded back on themselves, allowing the optical path to be compacted. The lens assemblies and image sensors are arranged in a nested manner where components are positioned within the spatial envelope of other components, enabling omnidirectional imaging capability while maintaining a compact overall device footprint suitable for mobile terminals.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement with lens assemblies positioned at different vertical levels and angular orientations. The bending type image sensors create folded optical paths that occupy different spatial zones, transforming a potentially planar expansion into a compact volumetric configuration that achieves omnidirectional coverage without proportionally increasing device size.
3Manufacturing precision
If multiple lens assemblies are configured with short parallax distance, then high-resolution imaging is improved, but the optical system becomes more complex
Solution Approach 1:
The patent employs asymmetric optical axis arrangements where lens assemblies are positioned at different angles and heights rather than in a symmetric configuration. The optical axes of multiple lens assemblies converge toward a common region but follow asymmetric paths, enabling short effective parallax distance for high-resolution stitching while avoiding the complexity of perfectly symmetric multi-lens arrangements.
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 configuration enhances the resolution and reduces parallax issues, allowing for high-quality imaging with reduced heat degradation and compact device design, effectively addressing the limitations of existing multi-wide-angle optical devices.
Implementation Method 1
a bending structure for bending a path of light of the first lens group so as to correspond to an optical-axis direction of the second lens group
Implementation Method 2
the heat-radiating structure is positioned to efficiently dissipate heat generated by the image sensors
Data Source
AI summary
In a lens assembly structure comprising a plurality of lens assemblies, according to the present invention, at least one part of assemblies among the plurality of lens assemblies comprises: a first lens group having a positive refractive power or a negative refractive power; a second lens group having a positive refractive power; and a bending structure for bending an optical path of the first lens group such that the optical path corresponds to an optical axis direction of the second lens group, wherein the bending structure is disposed on the optical path of the first lens group and an optical path of the second lens group, optical axes of the first lens groups disposed in each of the at least one part of lens assemblies meet at one point, and optical axes of the second lens groups disposed in each of the at least one part of lens assemblies may form a triangle.