Oven Cavity LED Lighting for Cooking Status Indication
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Solution Overview
Problem
Conventional cooking ovens lack the ability to provide extended information about the cooking process and oven status through their illumination systems, which are primarily used for visibility of food during cooking.
Innovation Solution
The arrangement of light emitting elements at multiple positions within the cooking oven cavity, utilizing multiple colors to indicate temperature, operation mode, and cooking progress, with complementary colors combining to produce white light for enhanced information display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional single-function illumination is used in the cooking oven, then the structure remains simple, but the information content provided to the user is limited
Solution Approach 1:
The illumination equipment is designed to perform multiple functions: it not only illuminates the cooking cavity for visibility but also conveys information about cooking status, temperature, and progress through different light colors and patterns. This multi-functionality approach allows a single illumination system to replace what would otherwise require separate indicator systems.
Solution Approach 2:
The patent employs different light colors (red, yellow, green, blue) to represent different cooking states, temperatures, and progress levels. By changing the color of the light emitted, the system encodes multiple pieces of information that would otherwise require separate visual indicators, thereby reducing overall system complexity while increasing information content.
2Loss of information
If multiple light sources with different colors are arranged at multiple positions, then information content increases, but energy consumption increases
Solution Approach 1:
The illumination system activates only the specific light sources and colors needed for the current cooking stage and status indication. Rather than keeping all lights continuously on, the system selectively activates subsets of light sources based on the cooking phase, temperature, and required information display, thereby reducing overall energy consumption while maintaining full information capability when needed.
3Loss of information
If multiple light emitting elements are used to indicate various parameters, then the information display capability improves, but the device complexity increases
Solution Approach 1:
Each light emitting element is designed to be multi-functional, capable of indicating multiple different cooking parameters through color changes and activation patterns. A single light source can indicate temperature ranges, cooking progress, and operational modes by varying its emission characteristics, reducing the total number of elements needed compared to a system where each indicator requires a separate light source.
Solution Approach 2:
The patent combines multiple information-indicating functions into a unified illumination system rather than using separate indicator lights for each parameter. By merging temperature indication, cooking progress tracking, and mode display into a single integrated light system, the overall device complexity is reduced while maintaining comprehensive information display capability.
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 provides a higher content of information about the cooking process and oven status, allowing users to better monitor cooking operations and temperatures through a more informative and efficient lighting system.
Implementation Method 1
The light emitting element is a light emitting diode (LED). The light emitting diode is very small and has low energy consumption.
Implementation Method 2
at least one pair of light emitting elements has complementary colours, so that an equal combination of light emitting elements with said complementary colours leads to a white light
Data Source
AI summary
The present invention relates to a cooking oven with at least one cavity (12) and an illumination-equipment (e.g. a LED-lamp) for illuminating said cavity (12). The illumination-equipment, comprises a plurality of light emitting elements (30) for illuminating the cavity (12). The light emitting elements (30) have at least two different colors. Single light emitting elements (30) and/or groups of light emitting elements (30) are separately controlled or controllable. The color or a combination of colors of the light emitting elements (30) is provided to indicate information about an operation mode of the cooking oven and/or a state of the cooking process. The light emitting elements (30) and/or groups of light emitting elements (30) are arranged at multiple positions within the cavity (12) in order to indicate information related to said positions. Further, the present invention relates to a method for illuminating a cavity (12) of a cooking oven.