We approach, for example, the luminaire or TV manufacturers and address their needs. Lee: To bring more value to the end customer, we started to work on an integrated service model. LED professional: How does Epistar support system developments for specific markets and applications?ĭr. For low cost applications a pure blue/white LED approach might be preferred, but the market is currently also asking for higher CRI values. The decay in lumen output is less than 5% and the color shift is negligible.

The Department of Energy in the United States, is continuously testing former blue/red chip bulbs and they are still running after 40,000 hours. You need to control both channels because the two materials have different temperature characteristics. Lee: The blue/white LEDs plus the red chip still give you the highest performance but you need two channel controls. LED professional: What about Epistar’s high-voltage LEDs with a combination of blue and red LED chips?ĭr. In the future for micro-LED and smart, digital lighting you may need RGB mixing to support this market. Backlighting and solid-state lighting need blue LEDs. Lee: Currently, of course we still focus mostly on visible light. LED professional: What are the main markets that you address?ĭr. We endeavor to cover the full spectrum range, infrared, visible and UV technologies. We are trying to bring the so-called “one-stop shopping” to our customers. Our products range from the red, yellow, orange, green and blue - all the visible range - and lately also included some of the infrared and ultra violet. Since then we have also started to focus on different wavelengths of LED chips.

Right from the beginning we positioned ourselves as a pure chipmaker.

LED professional: Could you give us a short overview of Epistar’s strategy and positioning within the LED business?ĭr.

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