Night-Vision Display Upgrade Using Folded Flex Circuit Integration
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Solution Overview
Problem
Existing night-vision systems lack modern ancillary functionality, such as the ability to overlay additional images on a display, due to high replacement costs and limited space within the device.
Innovation Solution
A method involving attaching a flex circuit with light detectors to an intensifier module, folding it to expose detectors, and optically coupling a display unit to the output side, allowing graphical content to be displayed alongside night-vision images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display unit is added to provide modern ancillary functionality, then the functionality and versatility of the night-vision system is improved, but the device complexity and space requirements increase
Solution Approach 1:
The display unit is integrated within the housing of the night-vision system, with components nested within existing structural spaces. The flex circuit is folded to fit within the housing while extending beyond the leading edge, allowing the display unit to be optically coupled to the intensifier module output side without increasing the overall form factor significantly.
Solution Approach 2:
The flex circuit is folded in a specific configuration that extends beyond the leading edge of the intensifier module, utilizing three-dimensional space within the housing to route the circuit while maintaining access to the intensifier module input side and allowing the display unit to be positioned at the output side.
2Adaptability or versatility
If the flex circuit is extended beyond the leading edge to include light detectors, then the functionality is improved, but the space within the housing is reduced
Solution Approach 1:
The flex circuit is folded within the housing to expose light detectors while maintaining compact integration. The folding configuration allows the circuit to extend beyond the leading edge of the intensifier module without significantly increasing the overall housing volume, as the circuit is routed through existing spatial pathways.
3Adaptability or versatility
If modern ancillary functionality is added, then the system becomes more versatile, but the cost of upgrade increases
Solution Approach 1:
The upgrade is implemented as a modular addition rather than a complete system replacement. The display unit and flex circuit with light detectors are added as separate components that can be integrated into the existing night-vision system housing, allowing for selective upgrading of specific functionalities while retaining the core intensifier module.
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
Enables the addition of modern ancillary functionality to night-vision systems, reducing upgrade or replacement costs while maintaining the form factor and utility.
Implementation Method 1
an intensifier module configured to intensify received light input into the intensifier module... an output side configured to output intensified light resulting from the received light
Implementation Method 2
a beam combiner optically coupled to the display unit and the output side of the intensifier module and configured to combine the intensifier light and graphical content
Implementation Method 3
the flex circuit including one or more light detectors... displaying graphical content including one or more indicators routed via the flex circuit
Data Source
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AI summary
Aspects of the present disclosure relate generally to night-vision systems and more specifically to an integrated micro-display module with a flex circuit. One example illustrated herein includes a method of upgrading a night-vision system. The method may include attaching a flex circuit to an intensifier module, in which the flex circuit includes one or more light detectors and extending beyond a leading edge of the intensifier module. The method may include inserting the intensifier module into a housing and folding the flex circuit to expose the one or more light detectors. The method may further include optically coupling a display unit to an output side of an intensifier module of the night vision system. The display unit may be configured to display graphical content in a field of view together with night-vision images from an output of the intensifier module of the night-vision system.