Optical Component Diffuser for Reflection-Free Imaging

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Solution Overview

Problem

Current illumination methods for capturing images of objects, particularly in medical and security applications, often result in unwanted reflections and camera instability, making it difficult to obtain high-quality images with clear features, especially when dealing with spherical surfaces like the eye and human skin.

Innovation Solution

An optical component featuring a light-diffusing element, such as a diffuser, is used to scatter light uniformly across the object, reducing reflections and stabilizing the camera by ensuring consistent illumination, while maintaining optical axis clarity to prevent distortions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a flash light is used to illuminate the object, then the illumination intensity is improved, but unwanted reflections appear on spherical surfaces

Engineering Contradiction:
Improveillumination intensityVSAvoidunwanted reflections
Core Design Contradiction:
Illumination intensityVSObject-generated harmful factors

Solution Approach 1:

The diffuser is nested within the optical component housing, creating a compact integrated structure where the light-diffusing element is positioned between the light source and the object, allowing the system to maintain high illumination intensity while eliminating reflections through the nested diffuser configuration

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The light-diffusing element acts as an intermediary between the flash light and the object, scattering the light rays to prevent direct reflection from spherical surfaces while maintaining sufficient illumination intensity for clear image capture

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If the camera is positioned close to the object, then the access of light from environment is improved, but camera stability deteriorates

Engineering Contradiction:
Improveaccess of lightVSAvoidcamera stability
Core Design Contradiction:
Illumination intensityVSStability of the object's composition

Solution Approach 1:

The optical component with integrated diffuser is prepared and positioned in advance, allowing the camera to be held at a stable distance while still providing sufficient illumination through the diffuser's light-scattering properties, eliminating the need for close positioning that causes instability

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the distance between camera and object is kept constant, then measurement precision is improved, but the device complexity increases

Engineering Contradiction:
Improvedistance constancyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The optical component with integrated diffuser serves multiple functions simultaneously: it provides illumination, diffuses light to prevent reflections, and maintains proper positioning, thereby achieving distance constancy and measurement precision without requiring additional complex stabilization mechanisms

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

The solution provides clear, reflection-free images with stable camera positioning, enhancing the capture of small features and structural details without the need for constant distance adjustments, improving image quality and reducing camera jolts.

Implementation Method 1

An optical component featuring a light-diffusing element, such as a diffuser, is used to scatter light uniformly across the object

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS8817172B2Illumination of an object
Publication Date: 2014.08.26 OPTOMED OY
  • US8817172B2 patent drawing
  • US8817172B2 patent drawing
  • US8817172B2 patent drawing

AI summary

There is provided an improved solution for illuminating an object by means of an optical component. In use, the optical component is integrated with a hand-held camera unit. The optical component comprises a light-diffusing element. In addition, the optical component may also comprise at least one light source and an end element that directs the light to the object.