LED Lamp Testing Apparatus Using Illuminometer and Shifter
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Solution Overview
Problem
Existing methods for testing light emitting diode (LED) lamps are inefficient, often requiring expensive equipment like integrating spheres and taking excessive time, and cannot perform comprehensive tests.
Innovation Solution
A testing apparatus and method that includes a secured seat, an up and down shifter for positioning and powering the LED lamp, an optical characteristic measuring means (such as an illuminometer), and an arithmetic means to convert measured values into quality determinations using predetermined expressions, allowing for simultaneous testing of multiple LEDs and determining quality based on optical and electric power characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If integrating spheres are used for LED lamp testing, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses an illuminometer to measure optical characteristics instead of integrating spheres. The illuminometer captures light output data that is then processed through conversion formulas to derive quality metrics, effectively creating a simplified measurement system that copies the essential function of integrating spheres without their complexity
Solution Approach 2:
The patent replaces the mechanical/optical integrating sphere system with an electrical/electronic measurement system consisting of an illuminometer, sensor, and controller that processes data through arithmetic conversions. This substitution eliminates the need for complex optical integration while achieving comparable measurement objectives
2Measurement precision
If integrating spheres are used for LED lamp testing, then measurement precision is improved, but test time increases
Solution Approach 1:
The patent pre-establishes conversion formulas and quality determination criteria before actual testing. The controller is programmed with arithmetic means to automatically convert raw illuminometer data into quality metrics, eliminating the need for complex real-time calculations during testing and enabling rapid quality assessment
Solution Approach 2:
The patent replaces time-consuming optical integration processes with rapid electronic data acquisition and computation. The illuminometer quickly captures light output, and the controller immediately processes this data through pre-programmed conversions, dramatically reducing test time compared to integrating sphere methods
3Measurement precision
If comprehensive testing is performed on LED lamps, then quality determination accuracy is improved, but device complexity increases
Solution Approach 1:
The patent creates a multi-functional testing system where a single apparatus performs multiple quality assessment functions. The controller executes various conversion formulas and quality determination algorithms using the same basic hardware components (illuminometer, sensor, processor), enabling comprehensive testing without proportionally increasing device complexity
Solution Approach 2:
The patent replaces multiple specialized testing devices with a single integrated electronic system. The controller serves as a universal processing unit that can perform different types of quality assessments by applying different conversion formulas and criteria, eliminating the need for multiple separate testing apparatus
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 reduces test time and cost, enabling efficient and comprehensive quality assessment of LED lamps without the need for expensive integrating spheres, allowing for rapid determination of good or poor quality based on measured parameters.
Implementation Method 1
which includes a sensor sensing that the up and down shifter is placed in the measurement position
Implementation Method 2
a quality determining means determining, in response to the sensor's sensing that the up and down shifter is placed in the measurement position, a quality of the LED lamp based on light emitted from the LED lamp, and including an illuminometer or an luminance meter
Data Source
AI summary
Disclosed is an apparatus for testing an LED lamp which includes: a secured seat on which the LED lamp is seated; an up and down shifter which, when the LED lamp is seated on the secured seat, shifts from an initial position spaced upward from the LED lamp to a measurement position in which the up and down shifter contacts with a socket of the LED lamp, and which supplies electric power to the LED lamp when the up and down shifter is placed in the measurement position, and a sensor sensing that the up and down shifter is placed in the measurement position; and a quality determining means determining a quality of the LED lamp based on light emitted from the LED lamp, and comprising an illuminometer or a luminance meter.