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UDT Instruments Announces
New LED Measurement System

UDT's highly sensitive instrument is suitable for luminous or radiant intensity measurements

UDT Instruments Press Release - 6/30/2008

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Model S471 Portable Optometer

Model S471 Portable Optometer from UDT Instruments

SAN DIEGO, Ca. - UDT Instruments introduces the new, portable S-471 LED Optometer. Designed and configured for all LED measurement requirements, the instrument features microprocessor control and three measurement data-presentation options: direct display measurement with analog bar, RS-232C computer interface, and analog voltage input.

Easy to use in production and/or laboratory settings, the unit is equipped with a silicon photometric detector and LED holding sockets for many common LED types. All the sockets are designed to meet the recommended CIE Publication 127, Conditions A and B, for measurements of the luminous intensity (candelas) of LEDs.

UDT's highly sensitive instrument is suitable for luminous or radiant intensity measurements, tunnel brightness, total luminous or radiant flux measurements, device brightness, signal brightness, and equipment and device illumination measurements. The new device includes an optional integrating sphere designed specifically for total luminous or radiant flux (lumens or watts) LED measurements.

The highly reliable system comes with an intuitive touch keypad and backlit LCD for easy read-out. The NIST-traceable (National Institute of Standards) factory calibration makes it easy to configure for a wide variety of applications, including illuminance, irradiance and fiber-optic measurements. Compact and lightweight for convenient handling, the new LED optometer is equipped with a rechargeable NiMH.

About UDT Instruments

The evolution of UDT Instruments can be traced to 1967 when a small group at United Detector Technology (UDT) began manufacturing the first commercially available transimpedance amplifiers for planar-diffused and Schottky barrier silicon photosensors. From there, the group went on to pioneer leading-edge technology for photometers, radiometers, fiberoptic power meters, and optical position sensing instruments. By the time the 1980s rolled around, this innovative and highly successful group grew into an autonomous entity known as UDT Instruments.

The momentum generated by UDT's precision photometric instruments ultimately spurred the company to develop an inventive handheld CRT colorimeter for the growing television and computer peripherals markets. UDT's SLS 9400 colorimeter promises to strengthen the company's position as a leader in precision electro-optics instrumentation while meeting the stringent demands of a multitude of CRT calibration requirements. Today, UDT is poised and ready to pursue even greater technological excellence with only one goal in mind: to meet or exceed the ever-changing needs of its customers worldwide.

For more information, visit the company's website at:

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