Adjustable Visor and Filter Assembly for Aerial Camera Light Control

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Solution Overview

Problem

Multi-propeller aerial vehicles face reduced image quality due to sunlight and shadows, affecting photography and object detection accuracy, especially during vertical flight when aerodynamics are of lower priority.

Innovation Solution

The aerial vehicle is equipped with adjustable light alteration assemblies, including visors and filters, that can be positioned over the camera lenses to block or filter excessive light, improving image quality and enabling high dynamic range imaging by combining images before and after light alteration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If light alteration assemblies (visors and filters) are positioned over camera lenses to block excessive light, then image quality is improved, but device complexity increases

Engineering Contradiction:
Improveimage qualityVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements adjustable light alteration assemblies that can dynamically change their position and configuration based on lighting conditions. The visors can be extended or retracted, and filters can be adjusted to different positions, allowing the system to adapt to varying sunlight conditions while maintaining image quality without permanently increasing structural complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The light alteration assemblies act as intermediary elements between the harmful sunlight and the camera lens. By positioning visors and filters as intermediate components, the system blocks excessive light before it reaches the camera, thereby improving image quality without requiring modification to the camera itself

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If visors are extended to block sunlight from camera lenses, then image quality improves, but aerodynamic efficiency deteriorates

Engineering Contradiction:
Improveimage qualityVSAvoidaerodynamic efficiency
Core Design Contradiction:
Manufacturing precisionVSLoss of energy

Solution Approach 1:

The visors are designed to be extendable and retractable rather than fixed. They can be extended only when sunlight interference is detected and retracted when not needed, particularly during horizontal flight when aerodynamic efficiency is critical. This dynamic adjustment resolves the contradiction by providing image quality protection only when required

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The light alteration assemblies operate periodically based on detected lighting conditions rather than continuously. The system activates visors and filters during periods of excessive sunlight and deactivates them during normal lighting conditions or horizontal flight, thereby maintaining image quality when needed while preserving aerodynamic efficiency during cruising

Inventive Principle:
Principle #19Periodic action

3Measurement precision

If light alteration assemblies are used during vertical flight, then object detection accuracy improves, but device complexity increases

Engineering Contradiction:
Improveobject detection accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The light alteration assemblies are equipped with sensors that automatically detect sunlight intensity and shadow conditions, triggering the visors and filters to adjust without external intervention. During vertical flight, the system self-activates to improve object detection accuracy, eliminating the need for complex external control mechanisms while maintaining measurement precision

Inventive Principle:
Principle #25Self-service

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 enhances image quality, leading to improved object detection and avoidance capabilities during vertical flight, while maintaining aerodynamic efficiency during horizontal flight.

Implementation Method 1

positioned between the camera and the light source to block a portion of the light from the light source from entering the lens of the camera

Methodology Applied
Scientific EffectLight blocking: Absorption (EM radiation)

Implementation Method 2

The light alteration assembly may include an adjustable visor and/or one or more filters that are positionable over the lens of the camera(s)

Methodology Applied
Scientific EffectOptical filtering: Filter (optical)

Data Source

PatentEP3408174B1Light adjustment control for cameras of an aerial vehicle
Publication Date: 2023.10.18 AMAZON TECH INC
  • EP3408174B1 patent drawingFigure 1
  • EP3408174B1 patent drawingFigure 2
  • EP3408174B1 patent drawingFigure 3

AI summary

This disclosure describes an aerial vehicle that includes a light alteration assembly that may be used to alter light entering a lens of a camera of the aerial vehicle. The light alteration assembly may include an adjustable visor and/or filters that may be selectively positioned over the lens of the camera. By altering light entering the lens of a camera of the aerial vehicle, the camera is able to obtain higher quality images of the area surrounding the aerial vehicle. The higher quality images may then be processed to accurately detect objects within a vicinity of the aerial vehicle.