Orientation-Sensing LED Lamp with Selective Row Control
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Solution Overview
Problem
Existing LED lamps with rotational attachment systems, such as Edison type, lack the ability to automatically adjust lighting direction and intensity based on orientation, leading to inefficient and potentially harmful light dispersion.
Innovation Solution
A lighting system with integrated semiconductor switches, microprocessors, and detection devices (like accelerometers and magnetometers) allows precise control of LED rows, enabling automated adjustment of lighting direction and intensity through a communication network, using Bluetooth technology for synchronization and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED designs are used, then manufacturing is simpler, but light output is insufficient and color rendering is poor
Solution Approach 1:
The lamp divides the lighting function into multiple independent LED chips with different spectral characteristics (warm white, cool white, yellow, blue, red, green chips) arranged in specific patterns. Each chip type contributes to different aspects of light output and color rendering, allowing the system to achieve superior performance through coordinated operation of segmented functional units
Solution Approach 2:
The invention uses composite phosphor materials including yellow phosphor, green phosphor, and red phosphor in specific combinations and ratios. These composite phosphor layers are applied to different LED chips to convert their emitted light into a combined spectrum that achieves high color rendering index while maintaining high luminous flux output
2Illumination intensity
If high power LED chips are used to increase light output, then illumination intensity improves, but heat generation increases and reliability decreases
Solution Approach 1:
The total luminous flux requirement is distributed across multiple lower-power LED chips instead of using fewer high-power chips. This segmentation reduces the heat generation per chip while achieving the same or higher total light output, thereby improving reliability and reducing thermal management requirements
Solution Approach 2:
Different types of LED chips (warm white, cool white, yellow, blue, red, green) are strategically positioned in specific patterns within the lamp. This local differentiation optimizes the spectral distribution at different spatial locations, achieving high color rendering index while distributing heat generation across multiple lower-power chips
3Illumination intensity
If multiple LED chips with different color temperatures are used, then color rendering index improves, but manufacturing precision requirements increase
Solution Approach 1:
The lamp uses multiple independent LED chips with different spectral characteristics arranged in a modular pattern. Each chip type is positioned in dedicated mounting locations on the circuit board, with the pattern designed to achieve optimal spectral mixing without requiring ultra-precise positioning tolerances
Solution Approach 2:
Multiple LED chips of different types (warm white, cool white, yellow, blue, red, green) are combined in a unified lamp structure with a common circuit board and driver. The design integrates these diverse components into a coordinated system where the collective output achieves high color rendering index while using standardized mounting procedures that reduce manufacturing precision requirements
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
Enables efficient, automated lighting adjustment across multiple lamps, reducing energy consumption and enhancing safety by optimizing light distribution based on orientation and need, while maintaining a communication network for additional functions like theft detection and emergency assistance.
Implementation Method 1
a plurality of light emitting diodes (LEDs) arranged in a matrix array pattern, each LED comprising a chip mounted on a circuit board
Implementation Method 2
each LED comprising a chip mounted on a circuit board
Implementation Method 3
The lamp also employs a combination of yellow phosphor, green phosphor and red phosphor
Data Source
Figure 1~2
Figure 3~5
Figure 4
AI summary
A LED lamp, comprising: a base (3), provided with an attachment for connection to a source of electrical energy; a plurality of LED rows (4), each of which can be adjusted and controlled singly to switch on and off; a microprocessor (24), predisposed for controlling the LED rows (4); a communication module (25), connected to the microprocessor (24), predisposed for receiving and transmitting control signals of the lamp; a power supply (16), predisposed for electrically powering the LED rows (4); a detecting device (17), predisposed for detecting the position and the orientation in space of the lamp, connected to the microprocessor (24).