Curved Image Sensor for Monocentric Lens Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional imaging devices with multi-lens assemblies face limitations such as poor resolution at edges and the need for precise lens alignment, which restricts the miniaturization of devices while monocentric lenses offer higher optical resolution but require a curved focal surface, making it difficult to use high-quality, low-cost planar chips effectively.
Innovation Solution
A curved image sensor that receives light focused on a curved focal surface and converts it into electric signals, which are then transmitted to a planar integrated circuit substrate, enabling the use of high-quality, low-cost planar chips with monocentric lenses for improved field of view and smaller device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multi-lens assemblies are used to provide a flat focal plane, then planar image devices can be used, but resolution at edges deteriorates and lens alignment precision requirements increase
Solution Approach 1:
The patent applies curvature by transitioning from a flat focal plane to a curved focal surface that matches the curved image sensor array. This spherical/curved geometry allows monocentric lenses to focus light properly across the entire field of view, eliminating edge resolution degradation while reducing lens alignment precision requirements.
2Measurement precision
If multi-lens assemblies are used to achieve high image quality, then image quality improves, but device thickness increases
Solution Approach 1:
The patent extracts and eliminates the need for complex multi-lens assemblies by using a single monocentric lens combined with a curved image sensor array. This removes multiple lens elements and their associated spacing requirements, dramatically reducing device thickness while maintaining or improving image quality.
3Measurement precision
If monocentric lenses are used to provide higher optical resolution, then optical resolution improves, but a curved focal surface is produced making planar chip integration difficult
Solution Approach 1:
The patent directly addresses the curved focal surface challenge by designing the image sensor array with a curved geometry that matches the monocentric lens's focal surface. This curved array can be manufactured using standard planar semiconductor fabrication processes followed by controlled bending, enabling integration of high-resolution monocentric lens systems while maintaining ease of manufacture.
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 solution allows for the integration of high-quality, low-cost planar chips with monocentric lenses, providing enhanced optical resolution and smaller device size while overcoming the limitations of multi-lens assemblies.
Implementation Method 1
A curved image sensor that receives light focused on a curved focal surface and converts it into electric signals
Data Source
AI summary
This document describes curved image sensors capable of sensing light from a monocentric lens. This curved image sensor receives light focused at a curved focal surface and then provides electric signals from this curved image sensor to a planar computing chip, such as a CMOS chip. By so doing, the higher image quality, smaller size, and often smaller weight of monocentric lenses can be gained while using generally high-quality, low-cost planar chips.