Multi-Chip LED Lighting Unit with Concentric Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LED lighting units face challenges in providing multiple color light beams efficiently, as they often require beam filters and multiple lamps, which lead to size constraints and beam shifting issues.
Innovation Solution
The development of multi-chip LED lighting units with a single substrate housing multiple LED chips (red, blue, green, and white) that can emit individually selectable colored light beams without the need for beam filters or multiple lamps, utilizing a control chip for brightness and color control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If beam filters are mechanically attached to filter white light for providing various color beams, then multiple color beams can be achieved, but the device complexity increases and beam shifting occurs
Solution Approach 1:
The invention divides the single light source into multiple LED chips, each emitting a different color (red, green, blue, white). This segmentation eliminates the need for beam filters while providing multiple color beams through selective activation of individual chips.
Solution Approach 2:
The invention transitions from a single centralized light source to multiple distributed LED chips arranged in a specific pattern. This dimensional change allows color selection without mechanical filters and prevents beam shifting by maintaining proper optical alignment.
2Adaptability or versatility
If multiple lamps are positioned inside lighting units to provide various color beams, then color versatility is improved, but the lighting unit size increases and beam shifting occurs due to off-centered positioning
Solution Approach 1:
The invention merges multiple LED chips (red, green, blue, white) onto a single substrate, consolidating what would have been separate lamps into one integrated light source. This reduces the overall lighting unit size while maintaining the capability to emit multiple color beams.
Solution Approach 2:
The single multi-chip LED assembly serves multiple functions: it can emit red, green, blue, white light individually or in combination, replacing what would require multiple separate lamps. This multi-functionality reduces size while maintaining color versatility.
3Adaptability or versatility
If multiple lamps are used to provide various color beams, then color selection is improved, but beam shifting occurs due to off-centered lamp positioning
Solution Approach 1:
By merging multiple LED chips onto a single substrate with a common optical axis, the invention ensures that all color beams are emitted from the same centered position. This eliminates beam shifting while maintaining the ability to select different colors through electronic control.
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 allows for flexible and efficient emission of various color light beams and intensities, eliminating beam shifting and the need for additional hardware, while providing a single, centered light source with adjustable brightness and strobe functions.
Implementation Method 1
Semiconductor light emitting devices, such as a light emitting diode (LED)
Implementation Method 2
When a bias is applied across the doped layers, holes and electrons are injected into the active region where they recombine to generate light
Implementation Method 3
The lens may include optical materials intended to influence or change the nature of the light emitted by the LED. Further, the lens may be suitably shaped for scattering the light and/or otherwise redirecting or influencing the light
Data Source
AI summary
Multi-chip sources and related methods are disclosed. A single multi-chip lamp source can include a substrate and at least three light emitting diode (LED) chips operably configured to the substrate to form a single LED package. The LED chips can include at least three different colored LED chips. The LED chips can be configured to be actuatable either individually or together to provide selectable colored light beams. The LED chips can be positioned on the substrate such that an emitted light beam remains concentric without shifting regardless of the chip or chips emitting the light beam.