Lighting Controller Single Input Color Point Adjustment
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Solution Overview
Problem
Existing lighting systems with variable color temperature and tint are complex and difficult for average users to control effectively, lacking a flexible and intuitive method for adjusting both color temperature and tint of white light.
Innovation Solution
A controller with a control device and processing unit that allows users to select a color point in a color space via a single input, changing it along a meandering curve on the black body locus, enabling easy and intuitive control of color temperature and tint, with customizable meandering curves for specific applications and user-defined options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple independent controls are provided for color temperature and tint, then control precision is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines multiple independent controls for color temperature and tint into a single integrated control mechanism. A single input control (such as a slider or dial) simultaneously adjusts both color temperature and tint parameters by moving the color point along a predefined meandering curve in the color space, thereby simplifying the user interface while maintaining precise control capability.
Solution Approach 2:
The patent introduces a meandering curve as an intermediary element that mediates between the single user input and the two-dimensional color space adjustment. The curve translates one-dimensional input movement into coordinated two-dimensional color point adjustments, automatically coordinating color temperature and tint changes without requiring the user to independently control each parameter.
2Measurement precision
If multiple independent controls are provided for color temperature and tint, then control precision is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple control mechanisms into a single integrated control unit. Instead of providing separate controls for color temperature and tint, the system uses one control input that simultaneously manages both parameters through a unified control algorithm and meandering curve implementation, reducing the number of physical or virtual controls required.
Solution Approach 2:
The single control input is designed to perform multiple functions: it controls both color temperature and tint adjustments, and can also manage intensity control in some embodiments. This multi-functional approach reduces the overall number of controls needed in the system while maintaining comprehensive color adjustment capability.
3Ease of operation
If a single input control is used for color point selection, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies preliminary action by predefining the meandering curve in the color space before the user operates the control. The curve is calculated and stored in advance, representing the optimal path for color point adjustment. When the user moves the single control input, the system simply follows this pre-planned trajectory, ensuring accurate color point selection without requiring real-time complex calculations or high-precision manufacturing tolerances.
Data Source
AI summary
A controller (1) configured to control properties of light emitted from a light emitting device (4), the controller comprises a control device (2) and a processing unit (3). The control device (2) enables a user to select a color point of the light emitted from the light emitting device (4) in a color space of the light emitting device. The selection of the color point is done by the user providing a single input to the control device (2). The processing unit (3) being configured to change the color point of light emitted from the light emitting device based on the single input. The change of the color point is done along a meandering curve extending along the black body locus (BBL) in accordance with the received single input.