18 April 2011

Marktech adds 650nm Point Source LED

Marktech Optoelectronics of Latham, NY, USA, whose capabilities span wafer growth through finished packaging and custom solutions, has added a 650nm-wavelength emitter to its high-accuracy Point Source LED series.

The firm says that an unobstructed, narrow beam of light output and newly improved narrow spectral bandwidth are key features to the Point Source product line, which suits critical sensing applications including encoders, linear or edge-positioning sensors and medical sensing equipment.

The unobstructed, radiated beam pattern is made possible by masking the die and relocating the topside electrode. By eliminating the ‘dark spot’ typically associated with conventional LEDs, the Point Source LED series yields far more accurate results in sensing applications, Marktech claims.

For applications using thin fiber-optic cable, the unobstructed die and narrow beam allow the fiber to be positioned in close proximity to the chip for improved accuracy. Also, a ‘near-parallel’ beam of light can be achieved with an internal ball lensing option mounted to the top of the LED die.

In addition to standard product offerings, Marktech has the in-house ability to customize die and component packaging depending on the customer’s requirements. Die aperture windows are available up to 200 microns. Standard packaging options include TO-18 and TO-46 metal can types as well as miniature surface-mount ceramic versions. Additionally, a number of lensing options are available depending on the beam output desired.

Tags: Marktech Optoelectronics LEDs

Visit: www.marktechopto.com

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