Multi-Illuminator Layout for Iris Authentication Glare Reduction

Solution Overview

Problem

Existing lighting and authentication technologies face challenges in efficiently illuminating targets at various positions while minimizing power consumption and preventing glare, particularly in iris authentication systems.

Innovation Solution

A lighting apparatus with multiple illuminators arranged to irradiate light in different directions and areas based on the target's position, controlled by an information processing system to optimize illumination and reduce glare.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single illuminator illuminates a wide area to cover targets at various positions, then the illumination coverage is improved, but the power consumption increases and glare occurs

Engineering Contradiction:

Improveillumination coverage areaVSAvoidpower consumption

Core Design Contradiction:

Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

The illumination system is divided into multiple independent illuminators (first illuminator and second illuminator) positioned at different locations. Each illuminator is responsible for illuminating a specific area, allowing selective activation based on target position. This segmentation enables the system to cover a wide area while consuming less power by activating only the necessary illuminators.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different illuminators provide different illumination characteristics tailored to their respective areas. The first illuminator illuminates the first area and the second illuminator illuminates the second area, with each illuminator optimized for its local region. This local quality approach ensures effective illumination coverage while minimizing power consumption and preventing glare in areas where illuminators are not needed.

Inventive Principle:

Principle #3Local quality

2Area of stationary object

If a single illuminator illuminates a wide area to cover targets at various positions, then the illumination coverage is improved, but glare is caused

Engineering Contradiction:

Improveillumination coverage areaVSAvoidglare

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The illumination system is divided into multiple independent illuminators (first illuminator and second illuminator) positioned at different locations. Each illuminator is responsible for illuminating a specific area, allowing selective activation based on target position. This segmentation enables the system to cover a wide area while consuming less power by activating only the necessary illuminators.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different illuminators provide different illumination characteristics tailored to their respective areas. The first illuminator illuminates the first area and the second illuminator illuminates the second area, with each illuminator optimized for its local region. This local quality approach ensures effective illumination coverage while minimizing power consumption and preventing glare in areas where illuminators are not needed.

Inventive Principle:

Principle #3Local quality

3Use of energy by moving object

If multiple illuminators are used to illuminate different areas, then power consumption is reduced and glare is minimized, but the device complexity increases

Engineering Contradiction:

Improvepower consumptionVSAvoidillumination system complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The control unit integrates the control of multiple illuminators into a single control system. The control unit determines the position of the authentication target and selectively activates the appropriate illuminator (first or second) based on the target's location. This merging of control functions simplifies the overall system architecture while maintaining the benefits of multiple illuminators for reduced power consumption and minimized glare.

Inventive Principle:

Principle #5Merging (Combining)

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 system effectively illuminates targets at various positions, reduces power consumption, and minimizes glare, enhancing iris authentication accuracy by narrowing the illumination area.

Implementation Method 1

a first illuminator that emits first light; and a second illuminator that is disposed on one side in a predetermined direction from the first illuminator and that emits second light

Methodology Applied

Scientific EffectLight emission and reflection: Light

Data Source

PatentUS20260038223A1Information processing apparatus, information processing system, and information processing method

Publication Date: 2026.02.05 NEC CORP

AI summary

A lighting apparatus includes: a first illuminator that irradiates first light toward a first area; and a second illuminator that is disposed on one side in a predetermined direction from the first illumination unit and that irradiates second light toward a second area located on another side in the predetermined direction from the first area.