Disposable Eye Pieces for Lightproof Seal and Infrared Transmission

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Solution Overview

Problem

Existing video goggles struggle to provide a reliable lightproof seal for different human facial anatomies, making it cumbersome to study eye movements without suppressing reflex movements, and require frequent cleaning between uses.

Innovation Solution

The apparatus consists of two eye pieces that form a lightproof seal around each eye, allowing only electromagnetic radiation outside the visible range to pass through, which can be worn under video goggles, eliminating the need for the goggles to be opaque to visible light and simplifying the fitting and cleaning process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If prior art video goggles provide a complete light proof seal around the circumference to prevent visible light from reaching the human's eyes, then the suppression of reflex eye movements is avoided, but the device becomes difficult to fit to different humans with different facial anatomy and requires frequent cleaning

Engineering Contradiction:
Improvelightproof seal effectivenessVSAvoidfitting ease and cleaning effort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention divides the light-blocking function into two separate components: disposable eye pieces that form the lightproof seal around the eyes, and reusable video goggles that do not require lightproof sealing. This segmentation allows the eye pieces to be discarded after use, eliminating cleaning requirements while maintaining reliable lightproofing where needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The eye pieces are designed as disposable components that are discarded after a single use. This eliminates the need for cleaning and sterilization between uses, significantly reducing maintenance effort while ensuring a reliable lightproof seal for each new user. The low cost of the disposable eye pieces makes this economically viable.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Reliability

If video goggles are made opaque to visible light to prevent light leakage, then reflex eye movements are not suppressed, but the goggles become difficult to clean and maintain between uses by different humans

Engineering Contradiction:
Improvevisible light blockingVSAvoidcleaning maintenance
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The light-blocking function is segmented into disposable opaque eye pieces and reusable transparent video goggles. The opaque eye pieces are discarded after use, eliminating cleaning requirements, while the goggles can be reused without lightproof sealing requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The opaque components (eye pieces) are made disposable rather than reusable. This transfers the light-blocking function to a single-use component that does not require cleaning, while the expensive goggles can be simpler in design and reused multiple times.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If the video goggles are designed to accommodate different facial anatomies, then the device becomes more versatile, but the lightproof seal becomes increasingly difficult to obtain reliably

Engineering Contradiction:
Improvefacial anatomy compatibilityVSAvoidlightproof seal consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The sealing function is separated from the goggles and placed in the disposable eye pieces. Each eye piece can be individually adjusted to fit different facial anatomies and form a reliable lightproof seal, while the goggles themselves do not require sealing and can be universally fitted.

Inventive Principle:
Principle #1Segmentation

4Reliability

If the eye pieces are made opaque to visible light, then reflex eye movements are preserved, but infrared light cannot pass through for camera observation

Engineering Contradiction:
Improvereflex eye movement preservationVSAvoidinfrared light transmission
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The eye pieces have different optical properties in different regions: they are opaque to visible light to prevent optic fixation and preserve reflex eye movements, but contain transparent regions (windows) that allow infrared light to pass through to the cameras. This local differentiation of optical properties resolves the contradiction between visible and infrared light transmission requirements.

Inventive Principle:
Principle #3Local quality

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 easier fitting and reduced cleaning efforts, while maintaining a lightproof environment to prevent optic fixation and suppress reflex eye movements, facilitating more efficient eye movement studies across various facial anatomies.

Implementation Method 1

the first eye piece and the second eye piece are configured for preventing transmission of visible light, and wherein at least one of the first eye piece and the second eye piece comprises a region that is transparent for electromagnetic radiation with a wavelength range outside a visible range

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentEP2851000B1Headgear for observation of eye movements
Publication Date: 2018.01.31 NATUS MEDICAL INC
  • EP2851000B1 patent drawingFigure 1
  • EP2851000B1 patent drawingFigure 2
  • EP2851000B1 patent drawingFigure 3

AI summary

An apparatus for covering a left eye and a right eye of a human, includes: a first eye piece configured for covering a left eye of a human; and a second eye piece configured for covering a right eye of the human; wherein the first eye piece and the second eye piece are configured for preventing transmission of visible light; and wherein at least one of the first eye piece and the second eye piece comprises a region that is transparent for electromagnetic radiation with a wavelength range outside a visible range.