The broadest line of both silicon and InGaAs detectors commercially available.
Indium Gallium Arsenide (InGaAs) PIN photodiodes are made using InGaAs/InP technology.
Cutting-edge silicon photodetectors that excel in precise detection of light ranging in wavelength from 250nm to 1100nm
Monolithic “quads” or quadrant photodiodes (QPDs) are 2 X 2 photodiode arrays with four planar diffused photodiode elements or segments.
Marktech offers a broad line of silicon photo Transistors in a variety of package types ranging from miniature metal can to ceramic packages.
Our High-Reliability Photoreflectors are sensors that contain both the LED emitter and photodetector functions within a single package.
Marktech Si APD’s offer low-level light and short pulse detections of wavelengths between 400 nm and 1100 nm.
UV detectors are offered in a variety of TO metal-can type packages from TO-18 to TO-39 with special UV glass lens to insure optimum lifetime and the least amount of material degradation
With the ability to detect light in the UV, visible, and infrared spectrums, photo detectors, photo transistors, and photodiodes are being used in increasingly more applications.
Marktech offers the broadest range of emitters commercially available ranging from 235nm to 4300nm across the UV, visible, NIR, SWIR, and MWIR spectral ranges.
Marktech offers the broadest range of UV LEDs commercially available ranging from 235nm to 400nm including UVA, UVB, UVC, and deep UVC LEDs.
Our advanced line of visible LED products is engineered to deliver high-quality, energy-efficient lighting solutions across various applications from 400nm to 700nm..
Our NIR LED wavelength range is typically from 700nm to 1000nm, extending into wavelengths invisible to the human eye but crucial for numerous technological and scientific applications.
Our standard product offering includes wavelengths from 1020nm to 3000nm and operating currents ranging from 20mA to 350mA for high-power applications.
Our Point Source LEDs are specifically engineered for optical encoders, edge sensors, and other critical applications that demand highly focused light with minimal dispersion.
Multi-LED chips in a single package, our multiple wavelength LEDs are engineered to address a myriad of applications across the UV, visible, NIR, SWIR, and MWIR spectral ranges
Designed to produce a highly defined red dot or reticle, facilitating accurate aiming without revealing the location to the target.
Ideally suited for applications including edge sensing, line sensing, coin bill validation, and bar code reading
Our panels are crafted to deliver uniform, vibrant illumination across a wide range of applications, from consumer electronics to industrial displays.
Crafted with the latest LED technology, these rings provide adjustable illumination to meet specific needs, ensuring optimal visibility and enhancing the quality of your projects.
As a proud CREE LED Solution Provider for over a decade, Marktech offers comprehensive engineering support, including design, binning, and material selection, alongside custom packaging options for specialized applications.
CREE LED through-hole emitters, designed for high-temperature and moisture environments with UV-resistant optical-grade epoxy, offer a range of colors for versatile applications in signage and lighting.
CREE High Brightness (HB) SMD LEDs are the brightest, most reliable architectural, video, signage, scoreboard, roadway, and specialty LEDs available today.
CREE LED’s P4 series represents a leap in LED design, combining efficiency with aesthetic versatility to meet the demands of modern lighting applications.
Marktech’s CREE LED XLamp® offerings on aluminum core starboards simplify LED integration for designers, providing a range of colors and angles on compact boards for easy testing and implementation in varied lighting applications.
Marktech Optoelectronics introduces its new product line of CREE LED die, including the EZ1350 Series Die, packaged in TO-cans (TO-18 and TO-39 outlines) designed for precision and reliability in demanding applications with protection against environmental factors like moisture and dust.
Marktech Optoelectronics combines over 40 years of expertise in optoelectronics with a focus on customized engineering solutions, addressing specific customer needs and applications.Â
Custom photodiode detectors are designed to meet unique customer requirements, offering specialized performance features and cost savings through optimizations such as integrated filters, photodiode arrays, and hybridization.
Through our vertically integrated manufacturing facilities in California and Japan, we offer custom LED solutions, including packaging and optoelectrical categorization, enhancing product design and market readiness.
Multiple LED dies combined in a single package are engineered to address various applications across the UV, visible, NIR, SWIR, and MWIR spectral ranges.
To succeed, you need the exact optoelectronic package custom-designed and manufactured for your application, including hermetic metal SMD, TO-can, plastic SMD, and molded through-hole packaging.
Made-to-order semiconductor chips (die) and wafers are designed and fabricated to fit your needs. Standard dies are available in specific wavelengths for high-volume production applications.
Bare and encapsulated LEDs, photodiodes, and other components are assembled on FR4, metal-cored, and flexible circuit boards, ready for production.
Learn about the latest trends, devices, and potential applications.
The latest news and announcements from Marktech Optoelectronics.
Detailed information about common uses for Marktech Optoelectronics devices.
In depth discussions on LEDs, Detectors and the science behind them.
Become familiar with common terminology and concepts for LED Devices.
List of common concepts and definitions for Photodiodes.
The loss of light as it passes through a material, generally due to its conversion to other energy forms (typically heat).
Also called spectral window of absorption. The spectrum formed by radiation that has been filtered through a material medium, in contrast to emission spectrum.
Ta, The temperature of air or liquid surrounding a device.
The part of an electrical circuit in which the electrons leave (a cathode-ray tube) or enter (an electrolytic cell) a unit in the circuit. It is the positive or side of a terminal.
An opening or hole through which radiation or matter may pass.
May be broadly defined as the root mean square of the current waveform applied.
A term coined by the CIE to describe quantities measured in “near field” conditions. These values are obtained using two different geometries labeled “Condition A with a measurement distance of – 316mm” and “Condition B with a measurement distance of – 100mm”. Both conditions involve the use of a detector with a circular entrance aperture of 100mm2. (Refer to CIE 127 for additional details).
A bundle of light rays that may be parallel, converging or diverging.
The systematic dividing of various LED performance parameters such as (Brightness, Wavelength, Forward Voltage and CCT) into smaller groups in order to meet the electrical and/or aesthetic requirements of an assembly.
An ideal body that completely absorbs all radiant energy striking it and, therefore, appears perfectly black at all wavelengths. The radiation emitted by such a body when heated is referred to as blackbody radiation. A perfect blackbody has an emissive of unity.
The degree to which a pixel in a digital image represents the analog brightness of the corresponding point in the original image. It is dependent largely on the number of bits devoted to representing the image processing system’s gray scale.
The operation of a LED or other component prior to its use in its intended application, as a means of testing and stabilizing it.
The negative “-“ electrode of a device in an electrical circuit.
The qualities of color associated with hue and saturation, but not brightness or lightness.
Proportions of standard primaries (tristimulus values) required for a color match; ratios of each tristimulus value of a color to their sum. In the CIE colorimetric system, designated X, Y and Z.
The plane diagram produced by plotting one of the three chromaticity coordinates (X, Y, Z) against another. The most common diagram is the CIE (X, Y) diagram, which is plotted in rectangular coordinates.
Commission Internationale de l’Eclairage, the international commission on illumination.
6500 K color temperature source that produces light which simulates the daylight produced by an overcast sky.
Methodology for specifying color based on the CIE sources, observers, and coordinate system.
An integrated circuit that uses both PMOS and NMOS devices on the same substrate, resulting in extremely low power dissipation.
The attribute of visual experience that can be described as having quantitatively specifiable dimensions of hue, saturation, and brightness or lightness. The visual experience, not including aspects of extent (e.g., size, shape, texture, etc.) and duration (e.g., movement, flicker, etc.).
A colorimetric concept related to the apparent visual color of a source (not its temperature). For a blackbody, the color temperature is equal to the temperature in kelvin.
The calculated rendering of an object. CRI is based upon a 0 – 100 scale. The higher the CRI, the more natural the colors appear.
Methodology for specifying color based on the CIE sources, observers, and coordinate system.
Continuous direct current applied which is constant over time.
The heart of an LED, sometimes called – chip.
The logarithm of the reciprocal of diffuse transmittance. Diffuse density results when a sample is diffusely illuminated.
Transmission accompanied by diffusion or scatters to the extent that there is no regular or direct transmission.
A device used to scatter or disperse light emitted from a source, usually by the process of diffuse transmission.
A two-electrode device with an anode and a cathode that passes current in only one direction. It may be designed as an electron tube or as a semiconductor device.
An individual circuit component, complete in itself, such as a resistor, diode, capacitor or transistor. It is used as an individual and separable circuit element.
The observable illustration of an image, scene or data on a screen su
For an LED of a given color, dominant wavelength is the single wavelength representation of the LEDs perceived color. Put another way, if the color of a single wavelength DW is indistinguishable from the color of a given LED, then that LED has a dominant wavelength of DW.
The addition of impurities to another substance, usually solid, in a controlled manner that produces desired properties. Silicon doping with small amounts of other semi metallic elements increases the number of electrical carriers.
A display format consisting of small light-emitting elements arranged as a two-dimensional array. Various elements are energized to depict a character. The typical matrix is 5 x 7 dots.
Continuous direct current applied which is constant over time.
A package for electronic components that is suited for automated assembly into printed circuit boards. The DIP is characterized by two rows of external connecting terminals or pins, which are inserted into the holes of the printed circuit board.
Pulse width divided by the period.
The output of a light source divided by the total electrical power input to that source, expressed in lumens per watt (lm/W).
The growth of crystalline materials layers on top of a wafer substrate.
Common name for a variety of adhesives used for lens bonding, fiber optic splicing and other photonics applications. The term is actually a prefix denoting the presence of an epoxide group in a molecule.
Measurement of the interval during which a photo detector’s signal and output current drops from 90 to 10 percent.
The diffraction pattern of a source such as a light-emitting diode, injection laser diode or the output end of an optical waveguide observed at an infinite distance from the source.
That part of the infrared spectrum from about 15um to 1000um. Flux: Time rate of flow of energy; the radiant or luminous power in a beam.
Reciprocal of period, expressed in Hz (1/s).
A spectrometer or autocollimator used to measure prism angles.
In image processing, the range of available gray levels. In an 8-bit system, the gray scale contains values from 0 to 255.
Heterojunction Bipolar transistors
High Electron Mobility Transistors
The perceptual term for that aspect of color described by words such as red, yellow or blue. Achromatic colors, such as white, gray and black, do not exhibit hue.
The general term for the application of light to a subject.
The emission of light by thermal radiation of a temperature high enough to render the source of radiation visible.
A lamp that emits light when an electric current passes through a resistant metallic wire situated in a vacuum tube.
Flux incident per unit area of a surface.
The invisible portion of the electromagnetic spectrum that lies between about 0.75um and 1000um.
A semiconductor material made of indium and phoshide. It has superior electron velocity over silicon and GaAs and is also has direct band gap making it useful for optoelectronic devices.
A hollow sphere coated internally with a white diffusing material and provided with openings for incident beam, specimen and detector used for measuring the diffuse reflectance or transmittance of objects.
Flux per unit solid angle.
A semiconductor device with the property of conducting current more easily in one direction than the other. It has two terminals containing a single crystal of semi conducting material that ranges from P-type at one terminal to N-type at the other.
(Tj), the temperature at the PN junction within a semiconductor device. LED (light-emitting diode): A PN junction device that gives off light radiation when biased in the forward direction.
A Light Emitting Diode (LED) is a solid-state semiconductor device that converts electrical energy directly into light.
A transparent optical component consisting of one or more pieces of optical glass with surfaces so curved (usually spherical) that they serve to converge or diverge the transmitted rays from an object, thus forming a real or virtual image of that object.
Electromagnetic radiation detectable by the eye, ranging in wavelength from about 380nm to 750 nm.
An alphanumeric display formed by a layer of liquid crystal material sandwiched between two sheets of glass; a transparent conductive coating on the glass is etched to form the character segments. An applied voltage causes the appropriate segments to darken as the molecules in the liquid crystal change their arrangement.
The SI unit of luminous flux, equal to the luminous flux emitted per unit solid angle by a standard point source having a luminous intensity of 1 candela.
Luminous flux per unit solid angle per unit area of emitting surface at an angle with respect to surface normal, in candela per square meter or nits.
Defined as the total luminous energy per unit time emitted by the light source into a sphere (360) surrounding the light source, where the luminous flux is the radiant flux multiplied by the human eyes sensitivity. The measurement unit for luminous flux is the lumen (lm).
The amount of luminous flux emitted into a very small solid angle at a defined angular orientation from the light source. The unit of luminous intensity is the lumen/steradian (lm/sr), or candela (cd).
The physical center of the lens; it is on the axis of the lens, halfway between the front and rear vertex.
Carrying out several functions simultaneously in an independent but related fashion. (In a 7-segment display, combining individual segments and pins for multiplex operation)
Mid wavelength infrared light in the range of 3.0-8.0 micron.
Unit of measurement of brightness (luminance) equal to one candela per square meter.
The point on the axis of a lens that is the image of the nodal points. Rays through the optical center emerge parallel to entering rays.
“Printed Circuit Board” typically made from FR-$ ceramic or metal core material.
Maximum instantaneous current that is applied in pulsed operation.
The wavelength at which the radiant intensity of a source is maximum (As seen by a photo detector).
Time interval from one point to its next/consecutive occurrence in a repeating waveform (s).
A chemical substance that exhibits fluorescence when excited by ultraviolet radiation, x-rays or an electron beam. The amount of visible light is proportional to the amount of excitation energy. If the
A device that senses light or other electromagnetic energy.
Photometry deals with light energy of wavelengths that can cause visual sensation. The human visual range is typically from 380nm to 780nm. Wavelengths outside this range do very little in stimulating our eye.
Contraction of “picture element.” A small element of a scene, often the smallest resolvable area, in which an average brightness value is determined and used to represent that portion of the scene. Pixels are arranged in a rectangular array to form a complete image.
PLCC-2 is a SMT LED packaged in the industry standard PLCC package. In general, its exterior dimensions are similar to the other surface mount LED components found in the market. PLCC-2 has wide viewing angle, available in full selection of color. Its application mainly toward Interior Automotive, Electronic Signs & Signals, Office automation, Home appliances & Industrial Equipment
The transition boundary between P-type and N-type materials in a semiconductor.
With respect to angular subtense, a source of light, such as a star, that is very small. In a lab, a point source may be simulated by imaging a large source onto and through a pinhole, or by focusing a parallel bundle of light, such as that from a laser, with a precise lens to a point image. 2. In lens design, a fictitious infinitely small source of radiation.
is a semiconductor diode similar in structure to a standard LED, however the light is emitted through a well defined circular area- typically 23 um-200um in diameter. The light produced appears as a “spot”.
Work per unit time consumed by a device, generally the product of current and voltage.
The interval of device ON time in a period.
Light is electromagnetic energy. Radiometry deals purely with that energy without consideration on how it stimulates our visual system i.e. the eye.
The approximately concentric waves that form on a surface that has been polished without an oscillation of the polishing lap.
Measurement of the time elapsed during the current output change from 10 to 90 percent in a photoconductor.
Saturation tells us the purity of the given color. The spectral width of an LED is several tens of nanometers which mean that an LED only contains wavelengths that are at the very most several tens of nanometers apart. Most everyday objects reflect light that spread over a wide range wavelength, much more than an LED. Generally, the tighter the range of wavelengths, the more saturated it is. LEDs are very saturated (>95% for most die types) but not as saturated as lasers which have spectral widths of an order of magnitude narrower.
A kind of spectrograph in which some form of detector, other than a photographic film, is used to measure the distribution of radiation in a particular wavelength region.
Solid angle subtending an area on the surface of a sphere equal to the square of the radius. There are 4 pi steradians in a sphere.
The temperature range in which a device may be stored. Ultraviolet (UV): That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
A solid substrate or medium to which another substance is applied. The substance (such as silicon or InP-Indium Phosphide) serves as a foundation for the growth of semiconductor materials such as photo diodes or transistors.
Short wave Infrared light in the range of 1.4 -3.0 microns.
A measure of the heat transfer capacity of a LED. A lower thermal resistance is usually preferred.
Typically defined as the included angle which encompasses 50% of maximum intensity.
A thin slice of semiconductor material used in the fabrication of electronic devices. A substrate with an epitaxial layer on it. The individual light emitting elements cut from the substrate are typically referred to as chips or die.
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.
Let us help select the perfect parts and services to make your application come to life.
As our industry constantly changes and evolving, Marktech has been since the start. Stay on top of new and upcoming technology trends, industry news and new product offerings.
Marktech Optoelectronics is one of the world’s leading manufacturers of UV, visible, near-infrared (NIR), and short-wavelength infrared (SWIR) emitters and photodiode detectors. The company also engineers and manufactures materials such as silicon photodetector wafers, chips, and InP epiwafers.
Marktech Optoelectronics
3 Northway Lane North
Latham, NY 12110
Fax: +1-785-4725
Email: info@marktechopto.com