29 November 2011

Osram Oslon Square LED's reflective package optimizes light usage and versatility

Osram Opto Semiconductors GmbH of Regensburg, Germany says that its new Oslon Square LED opens up a wide range of possible uses, including designer luminaires for the home or office, retrofits and street lights. Available in many different versions with different color temperatures, the LED can be operated with different currents, aiding versatility. Also, its reflective package makes better use of the emitted light and increases system efficiency in all versions, the firm claims.

The Oslon Square can be used in applications ranging from designer luminaires to bright street lights, says Osram Opto. Also, by being small, powerful and capable of operating at different currents, the new LED enables widespread use because there is no need to change the manufacturing process for the lamps. This one LED can therefore be used for manufacturing different products for different target markets.

Picture: Oslon Square’s reflective package makes use of light emitted at the side between the chip and lens.

Like the Oslon SSL LED, the Oslon Square measures just 3mm x 3mm, has a low thermal resistance of 4–3.8K/W, and is accommodated in a robust package that is suitable for outdoor use. In particular, the versatility of the LED enables high system efficiency. The chip is enclosed by a reflective package that reflects light emitted at the side or at the back so that this light is usable. Light that is reflected back to the LED within a system (e.g. from a diffuser) can also be used in this way.

The Oslon Square EC is suitable for indoor applications in which a high quality of light is needed, for example in offices. With a color temperature of 3000K it provides a warm-white light and also offers high color stability over a wide viewing angle (120°). The color rendering index (CRI) is at least 80. If the lighting needs to be particularly uniform, a ‘fine-bin’ order can be placed. At an operating current of 700mA it achieves a luminous efficiency of more than 90lm/W and a luminous flux of at least 200lm. At 350mA its efficiency surpasses 100lm/W. The EC version is also suitable for retrofits. Due to its small dimensions of 3mm x 3mm it can be closely clustered and, like all LEDs in this series, it benefits from its reflective package, both individually and within a system.

The Oslon Square PC and UW are designed for outdoor applications, e.g. in street lighting. They can be operated on currents of 200mA to 1.5A, suiting other applications such as downlights and spotlights. The LEDs produce light from neutral-white to cold-white, with color temperatures of 4000K and 6000K. Also, with a luminous efficiency of 130lm/W from an operating current of 350mA, they are more efficient than the warm-white version. With a CRI of at least 70 (4000K) and 65 (6000K), the LEDs combine good quality of light with high efficiency, says the firm.

“Every application places different demands on lighting, and with the Oslon Square we are providing a platform for tailor-made solutions,” says Ivo Ivanovski, product manager for the Oslon Square series. “The LED is available in different color temperatures with different CRIs and can be operated with different currents. By the end of the year we will have added further color temperatures to the portfolio,” he notes. “In addition to product features, we are offering logistical concepts with the Oslon Square that will make it easier for customers to develop luminaires.”

Tags: Osram Oslon SSL LEDs

Visit: www.osram-os.com/oslon-square