Sparkle Spot Light 2D Array Lighting System
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Solution Overview
Problem
Conventional lighting systems using single LED light sources with collimated beams lack sparkling effects, which are desirable for creating pleasant and attractive glare on specular reflective surfaces, and fail to provide a sparkling appearance when viewed from outside the beam.
Innovation Solution
A lighting system comprising a 2D array of light sources with specific distance configurations, where nearest neighboring light sources have varying distances to create a subset of active light sources with an average second shortest distance larger than the first, generating a sparkling effect on specular reflective surfaces and providing a sparkling appearance when viewed through optics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a single LED light source with collimated beam is used, then the beam angle and center beam intensity are maintained, but the sparkling effect on specular reflective surfaces is lost
Solution Approach 1:
The single LED light source is segmented into multiple individual LED elements arranged in a specific pattern. This segmentation allows different LED elements to be activated independently, creating temporal and spatial variations in the light output that produce sparkling effects on specular surfaces while maintaining overall beam intensity through coordinated operation of multiple elements.
Solution Approach 2:
The lighting system introduces dynamic control by selectively activating and deactivating individual LED elements over time. This temporal dynamics creates varying light patterns that manifest as sparkling effects on reflective surfaces, while the overall beam angle and center intensity are maintained through the collimating optics and coordinated LED activation sequences.
2Ease of manufacture
If multiple LED light sources are used to create sparkling effect, then the sparkle appearance is improved, but the beam shape and luminance consistency may be affected
Solution Approach 1:
Multiple individual LED elements are merged into a unified lighting system where their combined output passes through common collimating optics. This merging ensures that while individual LEDs are activated dynamically to create sparkle effects, the overall beam shape and luminance consistency are maintained through the integrating effect of the optical system and coordinated control of multiple elements.
Solution Approach 2:
Different regions of the LED array are controlled with different activation patterns - some LEDs are activated continuously to maintain beam consistency, while others are activated intermittently to create sparkling effects. This local quality differentiation allows simultaneous achievement of beam shape stability and sparkle effect generation.
3Illumination intensity
If all light sources in the 2D array are activated, then the overall luminance is maximized, but the sparkling effect is reduced due to uniform distribution
Solution Approach 1:
The lighting system employs periodic activation patterns where subsets of LED elements are turned on and off in sequences. This periodic action creates temporal variations in the light output that produce sparkling effects on specular surfaces, while the overall luminance is maintained through coordinated cycling of different LED subsets that collectively provide consistent average illumination.
Solution Approach 2:
The system introduces temporal dynamics by selectively activating individual LED elements at different times rather than all simultaneously. This dynamic control creates the perception of sparkle through varying light positions and intensities over time, while the overall luminance level is maintained through coordinated activation patterns that ensure sufficient total light output.
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
The system effectively creates sparkling effects on specular reflective surfaces and a sparkling appearance when viewed from outside the beam, maintaining constant luminance and beam shape while alternating light sources to enhance the sparkle effect.
Implementation Method 1
a plurality of light sources configured to generate light source light, and (ii) optics configured downstream of the light sources
Implementation Method 2
optics configured downstream of the light sources... configured to generate a beam of lighting system light having an opening angle
Implementation Method 3
objects with specular reflective surfaces may especially show sparkle... providing a sparkling effect on objects with specular reflective surfaces
Data Source
AI summary
The invention provides a lighting system (1000) comprising (i) a plurality of light sources (10) configured to generate light source light (11), and (ii) optics (20) configured downstream of the light sources (10), wherein the lighting system (1000) further comprises a 2D array (110) of at least part of the total number of light sources (10), wherein nearest neighboring light sources (10) in the 2D array (110) have an average first shortest distance (dd1), wherein the lighting system (1000) is further configured to generate in an operation mode lighting system light (1001) comprising light source light (11) of a subset of the total number of light sources (10) wherein nearest neighboring light sources (10) configured to generate the light source light (11) for the lighting system light (1001) in the operation mode have an average second shortest distance (dd2), wherein the average second shortest distance (dd2) is larger than average first shortest distance (dd1).