Multiwavelength

Explore the frontier of illumination with Optrans' Multi-Wavelength and Multiple Chip LED Emitters. Engineered to address a myriad of applications across the UV, visible, NIR, SWIR, and MWIR spectral ranges, these emitters (and detector/emitter combinations) combine multiple wavelengths from 235nm to 4300nm in a single hermetic package for enhanced functionality and design simplicity.

Each chip within the package can be independently addressable, and the option to integrate photodiode detectors further augments their utility. Ideal for non-dispersive spectroscopy, medical diagnostics (including oximetry and co-oximetry), fluorescence, and multi-parameter colorimeters, our emitters streamline design processes, cut costs, and safeguard photonic devices against environmental factors. Multiple wavelength chips in non-hermetic packages and chip-on-board (COB) assemblies are also available.

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Product Photo Features Package Specs
ILA1323L38-SU TO-5 with Flat Lens - 1200nm,1460nm,1650nm,1900nm,1720nm, 2300nm
ILAM104155L38 Detector/Emitter TO-5 with Flat Lens - 1040nm - 1200nm - 1300nm - 1460nm - 1550nm /// PD - 600nm - 1750nm
ILAM141719L38-SU Detector/Emitter TO-5 with Flat Lens - 1460nm - 1720nm - 1900nm /// PD - 600nm - 2600nm
MTMD2333T38 TO-5 with Flat Lens - 275nm, 310nm, 360nm, 380nm
MTMD2336T38 TO-5 with Flat Lens - 275nm, 310nm, 360nm, 275nm
MTMD3143T38 TO-5 with Flat Lens - 310nm, 430nm, 310nm, 430nm
MTMD3334T38 TO-5 with Flat Lens - 310nm, 360nm, 380nm, 430nm
MTMD3340T38 TO-5 with Flat Lens - 310nm, 310nm, 340nm, 405nm
ILAM1319L38-SU Detector/Emitter TO-5 with Flat Lens - 1300nm - 1460nm - 1650nm - 1720nm - 1900nm /// PD - 800nm - 2600nm
MTMD4270T38 TO-5 with Flat Lens - 428nm, 700nm, 428nm, 700nm
MTMD6376T38 TO-5 with Flat Lens - 635nm, 760nm, 635nm, 760nm
MTMD6788594SMT6 SMD 6 Pins with Flat Lens - 670nm - 770nm - 810nm - 850nm - 950nm
MTMD7885N24 TO-18 with Narrow Domed Lens - 770nm - 810nm - 850nm
MTMD7885T38 TO-5 with Flat Lens - 770nm (2 chips) - 810nm (2 chips) - 850nm (2 chips)
MTMS7700SMT4 PLCC-4 with Flat Lens - 770nm (3 chips)
MTMS7700T38 TO-5 with Flat Lens - 770nm (6 chips)
MTMS8800T38 TO-5 with Flat Lens - 880nm (6 chips)
MTMS9400T38 TO-5 with Flat Lens - 950nm (6 chips)
ILAM10415SMSFY3 Detector/Emitter 7.24x7.24 mm SMD Flat Lens - 1040nm - 1300nm - 1460nm - 1550nm /// PD - 600nm - 1750nm
ILAM1319SMSFY3 Detector/Emitter 7.24x7.24 mm SMD Flat Lens - 1300nm - 1460nm - 1720nm - 1900nm /// PD - 800nm - 2600nm

Product Information

Our Multi-chip and multi-wavelength Emitters combine several LED chips in the same package to reduce overall component size. LEDs with different wavelengths can be placed in the package for applications such as colorimetry, spectrometry, medical diagnostics (oximetry, co-oximetry, photoplethysmography (PPG), optical coherence tomography (OCT), urinalysis, functional near-infrared spectroscopy (fNIRS)), fluorescence, and currency validation. Multichip emitters are also used for high-reliability indicators, switch backlighting, and panel illumination.

The Optrans multichip LED series is available in various colors with polarized and non-polarized configurations for AC or DC operation. These low-profile emitters contain multiple, evenly spaced chips, combining for a consistent, wide-illuminated light pattern while consuming little power.

Several LED dies, or chips with the same wavelength can be packaged together for higher power output applications. Multiple LED chip products come in various package types, including TO-18, PLCC, TO-5, and surface mount. These devices hold anywhere from 2 to 7 die and are available in our selected standard chips in UV through SWIR Short Wave Infrared ranges. The LEDs can be modified to the customer’s specifications, which include power and wavelength sorting. InGaAs and silicon photodiodes can also be added into the package to provide both a light source and detection, which is especially useful for spectroscopy and biomarker sensing applications.

The Optrans hermetically sealed metal can multichip LED series offers high-output, low-profile emitters that contain multiple, evenly spaced chips, ideal for applications requiring the same emission sources in a small, densely packaged area.

In applications with more than seven LEDs needing to be densely packed, Optrans has chip-on-board (COB) solutions where multiple LED dies are directly placed into a small amount of space on a printed circuit board (PCB). COB offers many advantages compared to standard packaging. LEDs and electronic components are heat sensitive, so metal-cored boards are utilized where dense packing raises concerns about overheating devices.

While widely used in LED illumination applications, COB technology can significantly enhance emission and detection functions in sensing applications. Detectors can be soldered directly onto a printed circuit board with or without LED emitters. Packing more light emission or light detection chips into an area can enhance circuit and design performance in many applications.

Optrans Multi-chip & Multi-Wavelength Emitters, LED + Detectors, and COB products provide design engineers with several options to meet their space limitations and development needs.

Features

  • Broad Spectral Range: Covering wavelengths from 235nm to 4300nm, our emitters are versatile enough to support applications across the UV, visible, NIR, SWIR, and MWIR spectra.
  • Multiple Chips in One Package: Our emitters incorporate several chips within a single hermetic package, allowing multiple wavelengths to be used simultaneously. Each chip is individually addressable for maximum flexibility.
  • Elimination of Optical Filters / Monochromators: In applications using a board spectrum light source, bandpass optical filter wheels or monochromators with a motorized slit are required to provide the specific wavelengths. Multiple wavelength LEDs can eliminate these components in particular applications.
  • Integrated Photodiode Detectors: Enhancing functionality, including photodiode detectors within the package, allows for real-time monitoring and feedback, which is critical for precision-dependent applications.
  • Hermetic Packaging: Ensuring long-term reliability and performance, the airtight packaging protects photonic devices from environmental threats while maintaining a compact form factor.
  • Cost-Effective and Design-Simplifying: By combining multiple functionalities into one unit, our emitters reduce overall component costs and simplify the design process, making them an economical choice for advanced applications.
  • Improved SWaP: As electronic products evolve technologically and the push for miniaturization continues, space constraints for electronics remain a significant concern for design engineers. Our multiple wavelength devices provide improved size, weight, and power (SWaP) characteristics.
  • Broad Spectral Emission: Several LEDs (e.g., RGB and single wavelength LEDs) can be combined to simulate the broad spectrum of incandescent, xenon, fluorescent, or mercury vapor lamps while providing a light source with longer life.
  • Integral Monitoring / Detection: Silicon, InGaAs, and SiC photodiodes can be included in the same package. When invisible LEDs are utilized, an integral photodiode can act as a monitoring photodiode. Monitor the photodiode, indicating whether or not the LEDs are emitting. In reflective applications, the integral photodiode can be used to detect the amount of absorbance or reflection from a material or sample.

Applications

  • Non-Dispersive Spectroscopy: Ideal for applications requiring the simultaneous analysis of multiple wavelengths without dispersion, enabling efficient and accurate spectral analysis. Non-dispersive IR or UV spectroscopy (NDIR / NDUV) methods are often the foundation of sensing biomarkers in wearables or chemical composition in gas analyzers.
  • Medical Diagnostics: With specific wavelengths tailored for oximetry and co-oximetry, our emitters facilitate non-invasive monitoring of blood oxygen levels and the differentiation of hemoglobin forms, crucial for critical care and diagnostics.
  • Fluorescence: These emitters' ability to excite materials at one wavelength and detect the emitted fluorescence at another makes them perfect for biochemical, medical, and scientific research.
  • Multi-Parameter Water Quality Colorimeters: Our emitters provide the necessary spectral diversity and enable the accurate measurement of different colors and intensities, which is essential for quality control, research, and development in various industries.
  • Medical / Bio-illumination: Human tissues, diseased organs, and cancerous regions absorb or reflect light differently across the spectrum. Multiple wavelength light sources allow medical professionals to diagnose conditions incredibly quickly and accurately. Retina imaging or fundus cameras are diagnostic instruments that utilize numerous colors or wavelengths during imaging.

Optrans’ Multi-Wavelength and Multiple Chip LED Emitters are at the forefront of photonic innovation, offering unparalleled versatility, efficiency, and reliability for various applications. From advanced medical diagnostics to precise analytical instrumentation, our emitters are designed to meet the rigorous demands of modern technology, simplifying design processes while providing comprehensive solutions to complex lighting and sensing challenges.

Need Parts?

Do you need a small number of LEDs for your proof of concept? Or, are you looking to purchase a run for your prototypes? Visit our online stores at Digi-Key Electronics and Mouser Electronics today. In Japan, our products are now available through Rikei Corporation. In Israel, our products are now available through Militram. In Canada, our products are now available through ARL Group.