Temperature-Stable Lens Assembly for Wearable Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable electronic devices experience optical performance deviations due to temperature fluctuations, which affect the imaging devices' functionality and stability, especially when used in varying environmental conditions.
Innovation Solution
The imaging device incorporates a lens assembly with specific optical configurations and materials that maintain stable performance across temperature changes, ensuring wide-angle or ultra-wide-angle capabilities while minimizing size and manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lens assemblies are used in wearable electronic devices, then the device can be made compact and wearable, but optical performance deviates due to temperature fluctuations
Solution Approach 1:
The patent applies parameter changes by carefully selecting and configuring lens materials with specific refractive indices and Abbe numbers, and by optimizing the focal lengths and spacing of individual lenses within the assembly. These parameter optimizations enable the lens assembly to maintain stable optical performance across temperature variations, directly resolving the contradiction between reliability and temperature sensitivity
Solution Approach 2:
The patent uses composite material principles by combining multiple lens elements made from different optical materials with complementary properties. This multi-material approach allows the lens assembly to compensate for thermal expansion and refractive index changes, maintaining optical performance stability despite temperature fluctuations
2Adaptability or versatility
If a lens assembly with wide-angle or ultra-wide-angle capabilities is designed, then the field of view is improved, but the device size and manufacturing complexity increase
Solution Approach 1:
The patent applies segmentation by dividing the lens assembly into multiple discrete lens elements (typically 5-7 lenses) with specific focal lengths and optical powers. This segmented approach enables the achievement of wide-angle or ultra-wide-angle fields of view while maintaining a compact overall structure and manageable manufacturing complexity, as each lens element can be optimized independently
Solution Approach 2:
The patent utilizes another dimension by arranging lens elements along the optical axis with precisely controlled spacing and curvature radii. This three-dimensional configuration allows the lens assembly to achieve wide-angle capabilities through clever spatial arrangement rather than simply increasing lens diameter or数量, thereby controlling device size and complexity
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 solution provides consistent optical performance despite temperature variations, enhancing the imaging device's functionality and usability in wearable electronic devices.
Implementation Method 1
an imaging device may include a lens assembly and an image sensor disposed to receive light focused or guided by the lens assembly
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
According to one embodiment disclosed herein, an imaging device may comprise: a lens assembly; and an image sensor arranged to receive light focused or guided by the lens assembly. In one embodiment, the lens assembly may comprise: two to six lenses aligned on an optical axis and sequentially aligned in the direction of the image sensor; a first lens disposed farthest from the image sensor among the two to six lenses (hereinafter, "lenses"); an aperture disposed between the first lens and the image sensor; and at least one nth lens disposed between the aperture and the image sensor among the lenses. In one embodiment, the lens assembly may comprise: two to six lenses aligned on an optical axis and sequentially aligned in the direction of the image sensor; a first lens disposed farthest from the image sensor among the two to six lenses (hereinafter, "lenses"); an aperture disposed between the first lens and the image sensor; and at least one nth lens disposed between the aperture and the image sensor among the lenses. In one embodiment, the lens assembly, by satisfying at least some of the conditions presented through embodiments in the detailed description, can provide stable optical performance even when there is a change in temperature. Various other embodiments may also be possible.