Light Fixture Background Display Using Diffuse Pixels
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Solution Overview
Problem
Lighting fixtures with multiple LEDs create a 'funfair' look due to exposed light sources, which customers find unesthetic, as the light emits from a larger area, making them appear cheap and unsightly, especially when color mixing occurs before or after emission.
Innovation Solution
An illumination device with a first group of light sources and a second group of individually controllable pixels, where the light collecting means convert light into beams that merge at a distance, allowing the area between the beams to be illuminated differently, and a diffuser cover can be used to create a uniform light effect, hiding the pixelated appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple LEDs are used as light sources, then the light emits from a larger area providing better illumination coverage, but the visible multiple light dots create an unesthetic 'funfair' look
Solution Approach 1:
A diffuser cover is introduced as an intermediary component between the multiple LED light sources and the viewer. The diffuser cover scatters and uniformizes the light from individual LEDs, transforming the dotted appearance into a uniform light field while preserving the extended emission area benefit
Solution Approach 2:
The patent utilizes color mixing capabilities of multiple LEDs (different wavelengths) to create various colors and effects. By controlling the intensity and combination of different LED wavelengths, the system achieves both aesthetic color variation and uniform light distribution through the diffuser
2Reliability
If the housing design is optimized for technical specifications (optics, mechanics, electronics, cooling), then the fixture performs well technically, but the housing becomes less interesting and esthetic to look at
Solution Approach 1:
The diffuser cover serves multiple functions simultaneously: it diffuses light for uniform appearance, provides a clean aesthetic finish, protects the internal LED array, and can serve as a mounting surface for additional optical elements. This multi-functionality allows aesthetic enhancement without compromising technical performance
Solution Approach 2:
The housing and diffuser cover can be designed with various colors and finishes that change the aesthetic appearance without affecting the underlying technical specifications. Color coatings and material selections provide aesthetic customization while maintaining functional performance
3Illumination intensity
If light fixtures create lighting effects at a distance, then the lighting effect is achieved, but the light fixture itself becomes less interesting and esthetic to look at
Solution Approach 1:
The diffuser cover acts as a visual mediator that transforms the appearance of the light fixture from a collection of technical components into an aesthetically pleasing light-emitting surface. It allows the fixture to maintain its functional design while presenting an attractive appearance when viewed up close
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 solution creates a more uniform and aesthetically pleasing light output, allowing for dynamic color changes and video display capabilities, while eliminating the dotted LED look, enhancing the fixture's appearance and functionality.
Implementation Method 1
a diffuser cover can be used to create a uniform light effect, hiding the pixelated appearance
Implementation Method 2
a number of light collecting means collect light from at least one of the light sources and convert the collected into a number of source light beams
Data Source
AI summary
The present invention relates to an illumination device comprising:a first group of light sources and a number of light collecting means, said light collecting means collect light from said first group of light sources and convert said collected light into a number of source light beams;a second group of light sources arranged in an array of pixels, each of said pixel comprises at least one light source and each of said pixels are individually controllable;where said first group of light sources and said second group of light sources are individually controllable and where at least one of said pixels is adapted to emit light at an area between at least two of said source light beams. The present invention relates also to illumination system comprising such illumination device.