Configurable Optical Transducers with Spatial Light Modulation

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Solution Overview

Problem

Conventional lighting devices lack the ability to dynamically adjust light distribution, requiring multiple fixtures for different applications and offering only coarse control through mechanical adjustments, which is not suitable for general lighting or sensor applications.

Innovation Solution

Software-configurable optical transducers with a multi-lens arrangement and a controllable optical modulator, such as an electrowetting optic, that can steer and shape light to achieve a selected distribution, allowing for programmable lighting solutions for various applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple luminaires are provided to meet different lighting applications, then lighting distribution requirements are satisfied, but device complexity and quantity increase

Engineering Contradiction:
Improvelighting distribution adaptabilityVSAvoidnumber of luminaires
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a single luminaire that can perform multiple lighting distribution functions by integrating an array of individually controllable light engines, each with its own electro-optic component. This allows one device to replace multiple specialized luminaires while maintaining the ability to provide different lighting patterns through electronic control of the light engine array.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If mechanically adjustable lenses and irises are used, then light beam shape and direction can be adjusted, but control precision and suitability for general lighting are limited

Engineering Contradiction:
Improvemanual adjustment capabilityVSAvoidcontrol precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent replaces mechanical adjustment mechanisms with electronically controlled electro-optic components. Each light engine incorporates an electro-optic element that can be precisely controlled via electrical signals to adjust beam shape and direction, eliminating the need for manual mechanical adjustment while achieving superior control precision suitable for general lighting applications.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If multiple separately controllable light engines are used, then light distribution adjustment is improved, but device complexity increases

Engineering Contradiction:
Improvedistribution adjustment capabilityVSAvoidnumber of light engines
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the lighting function into multiple independently controllable light engines within a single luminaire. Each light engine can be individually controlled to produce different beam patterns and distributions. This segmentation allows flexible combination of light engines to achieve various lighting scenarios while keeping each individual module relatively simple and manageable.

Inventive Principle:
Principle #1Segmentation

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 precise control over light distribution, emulating different luminaire types and optimizing light detection patterns, enhancing flexibility and adaptability in lighting and sensor applications.

Implementation Method 1

a controllable optical modulator positioned between the multi-lens arrangement and the optical transducer to spatially modulate light to or from the optical transducer

Methodology Applied
Scientific EffectOptical modulation: Electro-Optic Effects

Implementation Method 2

a multi-lens arrangement positioned to redirect at least some of the light to or from the optical transducer

Methodology Applied
Scientific EffectLight refraction: Refraction

Implementation Method 3

fixtures have implemented mechanical adjustments. Mechanically adjustable lenses and irises enable selectable adjustment of the output light beam shape

Methodology Applied
Scientific EffectElectrowetting: Electrowetting

Data Source

PatentUS10466470B2Configurable optical transducers using an optical modulator and one or more lenses
Publication Date: 2019.11.05 ABL IP HLDG LLC
  • US10466470B2 patent drawing
  • US10466470B2 patent drawing
  • US10466470B2 patent drawing

AI summary

A configurable optical device may include an optical transducer, a multi-lens arrangement, and a controllable optical modulator. The optical transducer is configured to convert light to electrical signals or to convert electrical signals to light. The multi-lens arrangement is positioned to redirect at least some of the light to or from the optical transducer. The controllable optical modulator is provided between the multi-lens arrangement and the optical transducer. The controllable optical modulator is coupled to receive and spatially modulate light to or from the optical transducer. The optical modulator is selectively controllable to steer and/or shape the light to a selected distribution of light from the multi-lens arrangement onto the optical transducer and/or from the optical transducer onto the multi-lens arrangement.