News and New Products

Intense LEDs take on the sun

By Bill Schweber -- EDN, 6/22/2005

According to Richard Saffa, vice president of visible LEDs at Optek Technology, the company’s OVL series of LEDs perform in full sunlight for a variety of display and signage applications, including commercial outdoor advertising. The through-hole, oval LEDs, in 3-, 4-, and 5-mm sizes, are available in blue, green, red/orange, and red with intensities that vary depending on color and size (Picture). For example, the 5-mm, red, AlInGaP device has typical intensity of 950 mcd at 20 mA, and the green InGaN device has an intensity of 1750 mcd.

Viewing angle also depends on size; representative viewing angle is 50° at half-power and 110° maximum. Power dissipation for these 25-cent devices is approximately 130 mW.

Optek Technology, www.optekinc.com.