Infrared light distribution pattern control using object detection and electrowetting devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Infrared light sources lack the ability to dynamically shape their emitted light distribution pattern based on personalization or changing conditions, such as object location and temperature, in various applications like heating, cooking, and industrial processes.
Innovation Solution
A system comprising an electrowetting lens, an electrowetting shutter, and an object detector, controlled by a processor, which adjusts the infrared light distribution pattern by varying the refractive index and blocking infrared light based on detected object location and temperature, using multiple electrowetting prisms and elements associated with infrared sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If infrared light sources are used for heating applications, then heating efficiency is improved by matching wavelength to absorption characteristics, but the ability to dynamically shape the emitted light distribution pattern based on personalization or changing conditions deteriorates
Solution Approach 1:
The patent applies electrowetting lenses and electrowetting shutters to dynamically adjust the infrared light distribution pattern. These electrowetting devices can change their optical properties in real-time based on detected object characteristics, enabling the system to adapt the heating pattern dynamically while maintaining high heating efficiency through wavelength matching.
Solution Approach 2:
The system incorporates object detection capabilities that provide feedback about object characteristics and location. This feedback loop allows the control system to adjust the electrowetting lenses and shutters accordingly, optimizing the light distribution pattern based on actual conditions while maintaining efficient energy transfer to the target object.
2Adaptability or versatility
If electrowetting lenses and shutters are added to control infrared light distribution, then adaptability to different conditions is improved, but device complexity deteriorates
Solution Approach 1:
The electrowetting devices serve multiple functions within the system. The electrowetting lens both focuses and shapes the infrared light distribution, while the electrowetting shutter provides both attenuation and spatial control. This multi-functionality reduces the need for separate components, thereby managing system complexity while achieving high adaptability.
Solution Approach 2:
The patent utilizes electrowetting technology, which is based on electrostatic field effects on liquid interfaces. This approach uses electrical fields rather than complex mechanical systems to achieve dynamic optical control, simplifying the overall device architecture while maintaining high adaptability for different heating scenarios.
3Measurement precision
If object detection and dynamic control systems are implemented, then personalization and precision heating are improved, but loss of energy deteriorates due to additional control components
Solution Approach 1:
The system replaces complex mechanical adjustment mechanisms with electrowetting-based optical control. This substitution reduces the energy required for actuation while maintaining or improving targeting precision. The electrowetting devices consume minimal energy compared to mechanical motors or actuators, thereby reducing overall energy loss despite enhanced control capabilities.
Solution Approach 2:
The system optimizes energy efficiency by dynamically changing optical parameters (light distribution pattern, focus, intensity) based on detected object characteristics. This ensures that energy is concentrated precisely where needed, minimizing wasted energy from over-heating or illuminating unnecessary areas, thereby offsetting the energy consumed by the detection and control systems.
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 of infrared light distribution to efficiently heat specific areas or objects, optimizing energy use and maintaining desired temperature profiles, applicable in saunas, vehicles, buildings, and food service areas.
Implementation Method 1
an electrowetting lens arranged proximate to an infrared light source, the electrowetting lens being operable to vary a distribution pattern of infrared light from the infrared light source
Implementation Method 2
an electrowetting shutter overlaying the electrowetting lens, the electrowetting shutter being operable to an opaque state where infrared light from the infrared light source is blocked
Implementation Method 3
an object detector configured to detect an object in the area, the controller being configured to receive a detection signal from the object detector, the controller is further configured to operate the electrowetting lens and the electrowetting shutter in order to control the infrared light distribution pattern based on a location of the object
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A system (10) for controlling an infrared light distribution pattern (12) that includes an electrowetting lens (20) arranged proximate to an infrared light source (16), and operable to vary a distribution pattern (12) of infrared light (18) from the infrared light source (16) into an area (14); an electrowetting shutter (32) overlaying the electrowetting lens (20), and operable to an opaque state where infrared light (18) from the infrared light source (16) is blocked from projecting into at least a portion of the area (14), and operable to a transparent state where infrared light (18) passes through the electrowetting shutter (32); an object detector (40) configured to detect an object (42) in the area (14); and a controller (44) configured to receive a detection signal (46) from the object detector (40), and operate the electrowetting lens (20) and the electrowetting shutter (32) in order to control the infrared light distribution pattern (12) based on a location of the object (42). The pattern (12) may be uniform or may be customized for the object (42) being heated.