Compact LED suits miniature applications

Surface mount technology makes the new version of the Ostar Projection LED suitable for standard soldering processes.

The Ostar Projection SMT LED from Osram Opto Semiconductors is more compact and efficient than ever before and is designed for integration into ultra-miniature pico projection applications where space is at a premium.

This compact LED module measures 5.8 x 4.7 x 1.5mm and, unlike its predecessor, does not require additional connectors onboard for electrical interface.

Surface mount technology makes the new version of the Ostar Projection LED suitable for standard soldering processes.

The Ostar Projection SMT LED is ideal for applications such as the pico projectors now being integrated into mobile phone and other mobile appliances.

Pico projectors can be either integrated directly into the phone housing or attached to the phone as an accessory.

An embedded mobile phone pico projector typically measures 15 x 30mm.

In this configuration, the Ostar Projection SMT LED provides a system brightness of 10 screen lumens with a power consumption of 1W.

The larger accessory versions of pico projectors, which measure 75 x 75mm, can be operated with a higher wattage and can achieve brightness values of more than 15 lumens.

"Personal mobile device projection is the next wave of technology that will be integrated into today's function-rich mobile phones", said Mike Godwin, Director, LED Marketing, Osram Opto Semiconductors.

"The Ostar Projection SMT LED shows the versatility of Osram LEDs in next-generation consumer applications, making it possible to achieve high-performance operation from micro-sized packages".

A single Ostar Projection SMT LED module contains four 1mm RGB chips - two green, one red and one blue.

As an alternative to this RGB version, the Ostar Projection SMT LED is also available with four monochrome ultra-white, red, green or blue chips.

Depending on the colour, the chips are based on Thinfilm or ThinGaN technology and are designed for optimum efficiency.

The chips are located together with ESD protection diodes on a ceramic carrier with a monolithic glass window to provide cover and protection.

Besides pico projectors, the compact but powerful Ostar Projection SMT LED also lends itself to other applications such as specialty and fibre lighting.

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