news digest ♦ LEDs
throughput requirements of high-volume production lines. The ProMetric I2 incorporates ProMetric I’s technology in a 2MP, 1600 x 1200 pixel model, making it well suited to applications such as light measurement and characterisation of LED products, and other test and measurement applications that require speed, flexibility, and seamless operation in production environments.
Radiant Zemax’s imaging colorimeters are specialised CCD-based camera systems that replicate human spatial perception of brightness and colour. They combine the benefits of automation - speed, flexibility, and repeatability - with the relevancy and accuracy of human visual perception. ProMetric I, introduced to the market in mid-2013, was developed to deliver this powerful error- proofing technology to production environments.
“The improved speed is a game changing feature,” says Radiant Zemax President and CEO, Paul Caragher. “ProMetric I allows for significantly more complete test coverage without impacting overall throughput, so our customers can improve product quality and reduce costs by capturing and quantifying defects before they make it to market in finished products.”
With the addition of the I2, three models of ProMetric I imaging colorimeters are now available to accommodate a wide range of application requirements: ProMetric I2, I8, and I16, built around 2MP, 8MP, and 16MP cooled interline CCD sensors, respectively.
Each is available with a variety of interchangeable lenses, enabling optimised measurements over a wide range of working distances and viewing angles. ProMetric I supports high-speed USB and Ethernet communications, providing reliable operation over long distances.
Smart Technology features, including electronic lens control and onboard touchscreen, simplify setup and improve measurement accuracy.
The ProMetric I family can be paired with the Radiant Zemax TrueTest Automated Visual Inspection system to provide a complete, turnkey solution for high-volume manufacturing of FPDs, illuminated keyboards, and lighting products.
Vishay reveals AlInGaP MiniLEDs with 4900 mcd intensity
Offered in compact SMD packages the devices feature improved thermal performance of 325 K/W
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www.compoundsemiconductor.net January / February 2014
Vishay Intertechnology has released a new series of power MiniLEDs in ultra-compact 2.3 mm by 1.3 mm by 1.4 SMD packages.
Utilising the latest advanced AllnGaP technology, the Vishay Semiconductors VLMx234.. series provides exceptional brightness with a typical luminous intensity of 3500 mcd and maximum luminous intensity of 4900 mcd at 70 mA while delivering improved thermal performance compared to previous-generation LEDs.
The high-intensity LEDs released today provide low thermal resistance junction/ambient of 325 K/W and power dissipation up to 200 mW, which in turn enables high drive currents up to 70 mA. The devices’ small size and high luminous intensity make them ideal for automotive applications.
Offered in super red, red, amber, and yellow, the AEC-Q101-qualified LEDs are ideal for interior and exterior lighting, dashboard illumination, indicators and backlighting for A/V and industrial equipment, LCD switches and symbols, illuminated advertising, and more.
VLMx234.. devices feature a +/- 60° angle of half- intensity and a luminous intensity ratio per packing unit of less than 1.6, and are categorised, per packing unit, for luminous intensity and colour.
Available in 8 mm tape, the LEDs are compatible with IR-reflow soldering processes and preconditioning according to JEDEC Level 2a, and offer an ESD- withstand voltage up to 2 kV according to JESD22- A114-B. The devices are RoHS-compliant, halogen-free, and Vishay Green.
Samples and production quantities of the new LEDs are available now, with lead times of six weeks for larger orders.
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