AMS Technologies supplies a broad portfolio of light-emitting diode (LED) solutions, ranging from LED chips and packaged LED components for through-hole and SMT mounting, to LED modules and LED spotlights, all the way to collimated, multi-wavelength and lightguide-coupled LED light sources.
A series of high-end LED chips with high efficiency and very good degradation stability is available with wavelengths from 355 nm in the UV range up to 1720 nm in the infrared range. These LED chips feature up to 90 mW of radiant power and up to 11,000 mcd of luminous intensity.
For special applications, AMS Technologies provides a series of green (572 nm), red (625 nm and 650 nm) and infrared (850 nm) point source LED chips, designed to form a parallel light beam, as well as a series of monolithic LED display chips with separately addressable segments, enabling users to present numbers, letters and symbols.
LED Components & Modules
Our series of SMD LEDs comprises a variety of different LEDs in standard SMD packages like 1206, 0805, PLCC4, sidelooker or ceramic, featuring viewing angles from 40° to 180°. Different layouts are available with one to four chips as well as with power chips.
A variety of different LEDs in 3 mm or 5 mm molded plastic package feature a low variance of optical and electrical parameters. Package, lens shapes, viewing angle and wavelength in the range from 355 nm (UV) to 1750 nm (infrared) can be customized and adapted to the application. Various combinations of an infrared LED (IRED) and a photodiode in molded plastic packages are available for smoke detection applications.
Our series of high-quality, single-chip LEDs covers all wavelengths in the UV, visible and IR spectra, from 365 nm to 1750 nm. A variety of different LEDs in hermetic TO cases (TO‐05, TO‐18, TO‐39 or TO‐46) are available, featuring high efficiency and degradation stability and equipped with flat window cap or lens cap. And our series of 1300 nm edge-emitting LEDs comprise components with 14-pin DIL package and single mode (SM) or multi mode (MM) fiber pigtail as well as with TO-53 package sealed by a window or aspheric lens cap.
With its very high light output power of 50 mW in the UVC wavelength range (260 nm to 280 nm), our UVC LED module is ideal for sterilizing surfaces (e.g. the handrail of an escalator) or for use in air purifiers and air conditioners. The module is very easy to design into devices and systems due to its integrated driver circuit for a 12 VDC power supply, a beam angle of 120°, very low heat emission and compact dimensions.
LED Spotlights & Light Sources
AMS Technologies carries a series of high-power LED spotlights comprising ready-to-use light source solutions with integrated heat sinks and mounted collecting optics for numerous applications in industry, consumer, medical, and scientific fields. Precision LED spotlights combine state-of-the-art high-power LED emitters and a proprietary high-NA multi-element aspherical optical system into general-purpose light sources that can be used where uniform and high-intensity illumination is required.
Deep UV collimated LED light sources cover the wavelength range between 240 nm and 340 nm and employ a high-numerical-aperture aspherical collimating lens for precision collimation and high light throughput. High-power collimated LED light sources for the UV to NIR wavelength ranges are available with clear apertures of 11, 22, 38 or 48 mm and output powers of up to 1.5 W, while our series of super high-power collimated LED light sources feature up to 3.5 W of optical output power.
Multi-wavelength collimated LED light sources use multi-wavelength beam combiners to efficiently combine multiple LED sources into a single output beam and offer major advantages such as long lifetime, easily tunable spectrum, high power stability, and ultra-fast switching without using moving mechanical components – while our series of wavelength-switchable LED light sources let users manually switch between a selection of LED sources with different wavelengths and/or white LEDs.
High-power lightguide-coupled LED light sources are designed for high-efficiency coupling of LED light into a liquid lightguide (LLG) or a fiber optic bundle – virtually all lightguides with core diameters ranging from 3 mm to 8 mm can be used.
Accessories for LED light sources, including those for lightguide-coupled and for collimated LED light sources, comprise items like lightguide collimators, focusing modules, cables, fiber-optic adapters, microscope illumination tubes, connector tubes, connecting plates, thread converters, empty filter/optics holders, lightguide holders and many more.
Complementing AMS Technologies’ LED light sources, our broad portfolio of lasers and light sources encompasses SLED light sources, broadband, ASE and supercontinuum light sources, but also laser sources like DPSS lasers, diode lasers, gas lasers, OPOs and tunable lasers or other lasers and light sources – and also includes an exceptionally broad portfolio of laser diodes and modules for a wide variety of wavelengths and optical output powers.
For reliably cooling light sources, laser systems and laser components, we carry a very wide thermal management portfolio, ranging from components like thermoelectric, Peltier modules (TECs), heat sinks and fans to TEC- or compressor-based plate to air thermal management assemblies like our mini direct cooling thermoelectric kit to liquid to air thermal management assemblies like recirculating chillers.
Laser safety products available from AMS Technologies include protective eyewear as well as laser safety windows, curtains and cabins.
Our large portfolio of precision optics, manufactured of various optical materials and coated to very specific and demanding tolerances, including disk-shaped optical beamsplitters, optical scanners and deflectors, optical mirrors, windows, filters, lenses, prisms, polarization optics or etalons.
Additionally, we offer a broad range of complementary products such as optical mounts, rotary and translation stages, optical tables, breadboards and platforms as well as a variety of optical test and measurement equipment.
As an optoelectronic semiconductor light source, a light-emitting diode (LED) emits light when current flows through it in the forward direction. With its p/n junction, an LED behaves like the basic, non-luminous form of an electronic diode, i.e. it blocks the flow of current in the reverse direction. Light or photons are generated in an LED by photoluminescence, but not based on a laser process. Electrons and holes generated in the junction of the LED recombine in the semiconductor, releasing energy in the form of photons.
The band gap of the semiconductor determines the wavelength of the emitted light – LEDs are available with wavelengths from infrared (IR) to ultraviolet (UV). White light can be produced with a combination of several semiconductors (e.g. red, green and blue dies) or with the help of a light-emitting layer of phosphor deposited onto the LED semiconductor.
High-power LEDs are operated at high currents, and thus larger amounts of heat must be dissipated from the semiconductor because LEDs do not radiate heat as the long-wave component of the emitted light, as incandescent lamps do. For heat dissipation, high-power LEDs usually feature a large-area, good heat-conducting carrier plate for direct mounting on a heat sink – or even integrated heat sink structures.
LED chips are available both "naked" for integration into customized packages or substrates and as ready-to-use components, pre-installed in packages for surface (SMT) or through-hole mounting, usually hermetically molded or sealed with plastics that are transparent for the respective wavelength. LEDs in metallic TO-style packages often have high-quality optical glass on the top. In LED modules, the LEDs are already mounted on a heat sink; in addition, these modules often contain the driver electronics optimally matched to the respective LED or LEDs.
Complete LED light sources such as LED spotlights with integrated heat sinks and collimated optics already mounted are optimized for the respective application and can be easily integrated by customers into their own applications. In a collimated LED light source or LED collimator, the LED emitter is arranged in the focal plane of a collimating lens that images the emitter into infinity. Such collimated LED light sources can be used in illumination systems and, for example, as a lamp in a microscope that provides stable, bright illumination that can be modulated at high speed.
If LED light sources with several wavelengths are required, multi-wavelength light sources are available, utilizing beam combiners which combine the outputs of several LED light sources with different wavelengths into a common output beam. The individual LED light sources are selected according to the requirements of the application. The heart of the beam combiner is a dichroic or neutral beam splitter that can combine two wavelengths with high efficiency.
Alternative Terms: Light-emitting Diode; LED Chip; LED Component; LED Module; High-Power LED; LED Spotlight; Collimated LED Source; LED Collimator; Multi-wavelength LED Source; Lightguide-coupled LED Source