Lighting Controller Scene Mapping Contrast Balance
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Solution Overview
Problem
Transitioning from a first light scene to a second light scene in a lighting system can result in undesirable contrast differences between lighting units, leading to either too high or too low contrast, which may be undesirable in various contexts.
Innovation Solution
A method that analyzes the light settings of both the first and second light scenes to determine property values such as color points and intensities, and then maps the second light settings onto the lighting units based on a target difference value, ensuring a controlled transition that matches the desired contrast level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the second light scene is mapped directly onto the lighting units without adjustment, then the transition from the first light scene to the second light scene is simple and fast, but the contrast between different lighting units becomes unbalanced (some too high, some too low)
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing mapping information that includes adjusted light settings for transitioning between light scenes. The controller prepares the transition by determining intermediate light settings for each lighting unit based on the difference value, so that when the transition is executed, the contrast balance is already optimized. This allows the transition to be both fast (pre-computed) and balanced (adjusted mapping).
Solution Approach 2:
The patent changes parameters by introducing a difference value that quantifies the contrast difference between the first and second light scenes. Based on this difference value, the controller adjusts the mapping of light settings to lighting units, modifying parameters such as light intensity and color temperature to achieve a target contrast level. This parameter adjustment resolves the contradiction between simple mapping and balanced contrast.
2Ease of operation
If the contrast between the first light scene and the second light scene is made uniform across all lighting units, then the visual appearance is consistent, but individual lighting units with inherently different characteristics cannot maintain their unique lighting properties
Solution Approach 1:
The patent applies local quality by treating each lighting unit individually in the mapping process. Instead of applying a uniform adjustment to all lighting units, the controller determines specific adjusted light settings for each unit based on its characteristics and the overall contrast balance requirements. This allows each lighting unit to maintain its local qualities (individual characteristics) while contributing to the global goal of uniform contrast appearance.
Solution Approach 2:
The patent uses parameter changes to balance contrast uniformity with individual characteristics. The difference value and target contrast level serve as global parameters, while the specific light setting adjustments for each lighting unit are local parameters. The controller modifies these parameters differently for each lighting unit, allowing uniform overall contrast while preserving individual unit characteristics through customized local adjustments.
3Illumination intensity
If the contrast level between light scenes is increased to make transitions more noticeable, then the visual impact is enhanced, but the transition may become too abrupt and undesirable in certain contexts
Solution Approach 1:
The patent applies dynamics by making the contrast level adjustable rather than fixed. The difference value and target contrast level can be modified based on contextual requirements, allowing the system to adapt the transition characteristics dynamically. This enables the contrast to be enhanced when needed while reducing abruptness in contexts where smooth transitions are preferred, resolving the contradiction between visual impact and transition smoothness.
Data Source
AI summary
A method (500) of mapping a second light scene (ls2) onto a plurality of lighting units (110, 112, 114) is disclosed. The method (500) comprising: receiving (502) data indicative of a first light scene (ls1), the first light scene (ls1) comprising a plurality of first light settings (f1, f2, f3) for the plurality of lighting units (110, 112, 114), the data further comprising information indicative of which first light setting is mapped onto which lighting unit of the plurality of lighting units (110, 112, 114), analyzing (504) the first light settings (f1, f2, f3) of the first light scene (ls1) to determine one or more first light property values of one or more respective first light settings (f1, f2, f3), analyzing (506) second light settings (s1, s2, s3) of the second light scene (ls2) to determine one or more second light property values of one or more respective second light settings (s1, s2, s3), obtaining (508) a difference value, the difference value being indicative of a target level of difference between the first light scene (ls1) and the second light scene (ls2), mapping (510) the second light settings (s1, s2, s3) onto the plurality of lighting units (110, 112, 114) based on: the difference value, the one or more first light property values of respective first light settings (f1, f2, f3) and the one or more second light property values of respective second light settings (s1, s2, s3), such that a level of difference between the first light scene (ls1) and the second light scene (ls2) corresponds to the target level of difference, and controlling (512) the plurality of lighting units (110, 112, 114) to transition from the first light settings (f1, f2, f3) to the mapped second light settings (s1, s2, s3) and/or storing mapping information of the mapping of the second light settings (s1, s2, s3) onto the plurality of lighting units (110, 112, 114) in a memory (108, 118).