OSRAM LED: long life under high temperature

December 3, 2013 - China News - excessive heat is one of the main reasons for the failure of light-emitting diodes. With the advent of Oslon Square, on behalf of the OSRAM Opto Semiconductors successfully launched a special tolerance to high temperature LED. In order to ensure that the lamps in the LED can be maintained at a higher temperature in the same color, they are measured at 85 degrees C and sorting. Because this temperature is very close to the building from the spotlight to replace the light source of all lighting applications in common temperature.

OSRAM successfully optimized the heat dissipation of Oslon Square, so that it can withstand higher node temperature. OSRAM Opto Semiconductors Germany solid-state lighting products R & D department Ivar Mr. Tangring said in the interpretation of this innovative technology advantage: "with the new conversion of our technology, we can produce than ever to convert a much thinner layer. This thinner conversion layer is more conducive to heat dissipation, so the LED can withstand higher temperatures. "And even if the temperature in the LED up to 135 degrees C, Oslon Square service life can be far more than 50000 hours.

New Oslon Square attributes benefit customers

It is of great significance to measure and sort out the working temperature of 85 DEG C for customers who need to further process the light emitting diodes. They need to obtain luminous flux, color stability and other accurate parameter information, in order to optimize the properties of their products.

In addition, the improved temperature characteristics can be achieved in the application of higher light efficiency. Mr Tangring stressed: "light efficiency, refers to the ratio between the luminous flux and the consumption of electricity, can help customers greatly optimize the cost of their lighting solutions. "Due to the higher temperature of the junction, the need for large heat sink is less, so they can be more compact size, thereby simplifying the design of bulbs and lamps, cost savings.

Application in interior lighting

Oslon Square is particularly suitable for a variety of applications in buildings. Its color temperature range between 2400K and 5000K, can produce warm white or white light. Its color index of more than 80, luminous flux is staggering to reach 202 lm. In addition, with different color temperature range and higher color rendering index version of the product will soon come out.

At present, the new LED is a variety of quality test: LM-80 life test certification program has been started, is expected by the end of this year announced the results of the test of 3000 hours, 6000 hours in the spring of 2014 announced the results of the test.

Technical data (GW CSSR M1.EC) - all data at the junction temperature of 85 degrees C measured:

Shell size

3 mm x 3 mm

Beam angle

120 degrees

Typical voltage (700 mA)

2.9 V ~ maximum value of 3.2 V

Electric current

Max 1.8 A (before 1.5 A)

Typical brightness (700 mA)

~202 LM (3000 K)

Color rendering index (CRI)

Minimum 80

Thermal resistance (Rth)

3 K/W (prior to 3.8 K/W)

Color temperature

2400K ~ 5000K

New Oslon Square: better heat dissipation, color uniformity stability, high temperature lamp life longer.

Source: OSRAM

Source: OSRAM

Oslon Square is the ideal light source for internal lighting.

About OSRAM Opto Semiconductors

OSRAM, headquartered in Munich, Germany, is one of the world's two largest lighting manufacturers. OSRAM Opto Semiconductors Co. Ltd. is a subsidiary of OSRAM, with its headquarters in the German city of Regensburg, mainly on the semiconductor technology as the foundation, is committed to providing solutions for the lighting, sensor and visualization applications for its customers. OSRAM Opto Semiconductors are equipped with production line in Germany, Regensburg and Malaysia Penang, its North American headquarters in the United States California Sunnyvale, Asia headquarters in Hongkong, and also has offices around the world. For more information, please visit www.OSRAM-os.cn.