point source emitters product overview the marktech point source emitter series incorporates a specially designed led die and aperture window to create a precise, unobstructed light output pattern. the key design feature of the point source led die is a wire bond which attaches next to the emission window as opposed to the center of the window eliminating any dark spots in the light output pattern. traditional wire bonding of a standard led emitter die is attached to the top center of the die which creates a dark spot and therefore will effect the light output from device to device. these variations in light output of a standard led emitter can have a negative affect in a critical sensing application. the point source series outperforms standard emitters at high speeds yielding a stable output pattern and making them the device of choice for applications which include encoders and linear positioning equipment. high reliability package options range from to-18 and to-46 metal cans to ceramic surface mount packages. varying package heights and lensing options provide the designer with optimum fexibility in sophisticated design efforts. devices supplied without optics are manufactured with a fat glass window allowing the designer to utilize proprietary collimating or other application specifc optics to take full advantage of the undistorted beam. custom packaging designs which include chip on board confgurations or custom apertures are also available. unobstructed light output in a simple side by side lighting comparison, the light emitted form the standard led (left) has several dark spots due to the wire bonding pad and obstruction from the wire bond. the point source emitter (right) has a narrow, well defned and precise light output pattern. narrow spectral bandwidth a key feature of the the point source led series is a very narrow spectral bandwidth. custom sorting of wavelength as well as other key parameters is available. please contact marktech to discuss the application. spectral output wavelength (nm) relative power output (%) 750 0 20 40 60 80 100 120 800 850 900 950 for illustrative purposes only. drawings are not to scale. p oint s ource e mitter led emitting light cathode terminal pins p-layer active area n-layer substrate anode s tandard led emitting light cathode terminal pins anode p-layer active area n-layer substrate emitting light
website : www.marktechopto.com toll free : 1-800-984-5337 global headquarters : 3 northway ln n, latham, ny 12110 product selection part number wavelength (typ.) bandwidth (typ.) power output (typ.) aperture size (typ.) beam angle (typ.) forward current (typ.) package (nm) ? (nm) po (mw) (m) (deg.) if (ma) ps new . pcc psc new . flat op ceramic s psp . ermetically sealed pigtail pswc . ermetically sealed o pswc . ermetically sealed o psc . flat op ceramic s ps . pcc psp . . ermetically sealed o pswc . ermetically sealed o psn . ermetically sealed o psp . ermetically sealed pigtail psbws new . ermetically sealed o psbs new . focued ball en o psbs new . focued ball en o psp . . ermetically sealed o psn . ermetically sealed o pswc . ermetically sealed o ps . pcc psc . flat op ceramic s pscp . ceramic ome op s psp . ermetically sealed o pswc . ermetically sealed o psws . ermetically sealed o ps . pcc psc . flat op ceramic s pscp . ceramic ome op s psp . . ermetically sealed o psn . ermetically sealed o psp . ermetically sealed pigtail ps . o rip en psf . ermetically sealed pigtail psw . ermetically sealed o electrical & optical characteristics (ta = 25oc) applications ? encoders ? linear positioning ? line sensing ? medical sensing ? short haul fiber ? machine vision ? edge sensing ? optical switches advantages ? unobstructed light output ? well defned beam for high accuracy ? high current capability ? no side light emissions ? fiber optic cable can be placed close to die ? narrow spectral bandwidth ? flexible emission area (25m to 150m) under development 740nm & 880nm
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