Quantum Devices, Inc. (QDI) Barneveld, WI, was established as a
Wisconsin corporation in October 1989, as an outgrowth of activities
in the general area of optoelectronics. The main goal of QDI is
to provide customers with a complete source for all stages of product
design and development, starting from concept to a marketable commodity.
These products include application specific Silicon Photodiodes,
Optical Encoders and Light Emitting Diodes (LED) for commercial,
industrial and medical applications. QDI's photodiodes and LED's
are used in instrumentation for photosynthesis and photobiological
research, biomedical and medical instrumentation for measuring blood
sugar levels (glucometer), oxyhemoglobin and pulse rate (pulse oxymeter).
One of the most dramatic products developed at QDI was the application
of LED lighting systems for use as the light source for Photodynamic
Therapy (PDT). Sales of QDI products include both domestic and international
Quality and reliability are very important concepts
in maintaining our company wide commitment to overall product performance.
Quality simply means continuous process improvement. We are committed
to continually increasing our product excellence through increased
quality and reliability. Quantum Devices, Inc. is ISO 9001 certified
and the ISO Standard will provide the guidance for the vital function
of maintaining our commitment to constantly improve our product
Quantum Devices is now proud to introduce it's new
line of rotary encoders. Incorporating QDI's patented sensor technology,
our QPhase™ Family of Encoders feature high resolution, increased
frequency response and superior reliability over temperature (0
to 120 degrees C). QDI incremental and absolute encoders set a new
standard and are backed by a 2 year factory warranty. We invite
you to request an evaluation unit, additional information or price
Quantum Devices is dedicated to the principle that light
provides the power for all life on earth. We believe the quality,
delivery and control of light is essential to the wellness of man
and his advancement into the future.