Led Array

LED Arrays

The Led Array is perfect for those who want to learn about the color-wavelength relationship of light. The array has 10 single color LEDs that cover the visible spectrum and a “white” wide-spectrum LED. It also has blue and green LEDs to expand the range of wavelengths. You can select any LED individually or turn them all on.

This vertically stacked set of LEDs can create a dramatic demonstration of how wavelength of light affects colour. You can investigate the spectral range of each LED with a spectrometer or visually compare the colours and intensities of the LEDs. You can observe and compare the spectra of different LEDs and the power output of each LED is measured in mw.

The Led Array has a rotary switch at the top of the column to turn on each LED individually. The array comes with a power supply that is 110-240VAC 50/60Hz input and 5VDC 2A output. It is 33.5mm high, 10mm base diameter and 3.3mm column diameter. Total length is 33.5mm.

The array is built with robust construction and housed in a protective case for durability. This ensures optimal performance and longevity for various applications.

Whether you’re a science teacher, student or just an enthusiast, the United Scientific LEDA01 Led Array is a must have for anyone interested in light physics. It’s user friendly and can be used as a standalone or with other units. With its wide range of colors, easy to use rotary switch and compact size, it’s perfect for classroom or lab demonstrations. It’s ideal for quick and easy demonstrations, saving time during experiments.

The array can accommodate optical filters or accessories such as slides to expand its functionality. Technical information such as spectral output and power ratings are in the product table and more information can be obtained from the manufacturer. The arrangement of LEDs and their spectral properties are in the product documentation and some features were found during the calibration process.The array uses high quality LEDs like Cree.

Note: Please refer to the product manual for operation instructions and safety disclaimers.

Introduction to Lighting

Lighting has undergone a revolution and LED arrays are at the forefront of this. By mounting multiple LEDs on one board, LED arrays produce higher light intensity, uniformity and energy efficiency than traditional lighting solutions. The introduction of chip-on-board (COB) technology has further improved the capabilities of LED arrays to produce compact designs that maximise light output and minimise energy consumption. These arrays are now used in various applications from residential and commercial to industrial and automotive. Because of its flexibility, LED arrays can be designed to meet the specific requirements of any project making it the perfect choice for customers looking for reliable high performance lighting solutions.

What is an LED Array

An LED array is a group of LEDs arranged and mounted on one board to produce a specific light output. These arrays can be constructed using different methods such as surface mount technology (SMT), through-hole mounting (THM) or advanced chip-on-board (COB) techniques. The method used affects the array’s intensity, uniformity and overall performance. LED arrays can be packaged for durability or left bare for custom applications and often work with other hardware like drivers and controllers to regulate power and intensity. Key characteristics such as colour temperature, maximum current and wavelength can be customised to provide the exact spectrum and brightness needed for any application. This versatility makes them a popular choice for both standard and special lighting needs.

Types of LED Configurations

LED arrays can be configured in several ways to achieve the desired lighting effect. The most common configurations are series, parallel and series-parallel combinations. In series configuration, LEDs are connected end-to-end which is ideal for consistent current through each LED. Parallel configurations involve connecting multiple strings of LEDs side by side which allows for greater flexibility and redundancy. Series-parallel setup combines both methods offering a balance between reliability and performance. Additionally, LED arrays can be designed with varying number of LEDs to increase the number of LEDs to boost intensity and achieve greater uniformity of light. The choice of configuration and number of LEDs is determined by the specific requirements of the application making it easy to customise the array for optimal results.

Applications of LED Arrays

LED arrays are used in many applications where high intensity, uniformity and energy efficiency is required. They are suitable for general in homes and offices and industrial environments that demand rugged and reliable lighting. In automotive lighting, LED arrays provide powerful and efficient headlamps and taillights. Medical fields also use LED arrays in surgical lighting and research equipment where precise and uniform light is needed. LED arrays can be used with other lighting technologies to create hybrid systems to further improve performance and extend the life of the lighting solution. For example, streetlights with LED arrays offer better brightness and energy savings making it a preferred choice for municipalities and businesses.

Characteristics

The performance of any system is defined by several key characteristics including colour temperature, spectrum, intensity and uniformity. Colour temperature measured in Kelvin (K) determines whether the light is warm or cool, with options from soft white to bright daylight. The spectrum refers to the range of wavelengths emitted which can be customized to suit specific plant growth to medical diagnostics. Intensity measured in lumens or watts indicates the brightness and can be adjusted to meet the environment. Uniformity is critical where even illumination is required such as laboratories or display cases. Factors like the distance between the source and the sample and the height and angle of the array also play a significant role in achieving the desired effect. Understanding these characteristics allows users to select or design the right LED array system.