CARROLLTON, Texas, 13 Jan. 2008.TT Electronics Optek Technology in Carrollton, Texas, has developed a star-shaped red/green/blue/amber light-emitting diode (LED) assembly with solid thermal performance by integrating four 1-W LED die into one assembly for solid state lighting applications.
Designated the OV4Z Optimal IV Star Series, the LEDs come in mono-color or RGBA packages and have a recessed die design that houses four LED chips under a 5-millimeter optical-grade water clear lens. The assemblies achieve a low thermal resistance of <2degreesC/W from junction to heatsink.
"The star-shaped assembly results in a simplified mounting configuration, while the design of the part provides customers with optimal luminous intensity and transfer of heat generated due to increased current value," says Alan Bennett, vice president of sales for Optek Technology.
The OV4Z Series devices are bright and suited for applications including large signage; interior, exterior and landscape architectural lighting; recreational areas such as pools, spas and boats; and specialty lighting including vending machines, display cases and stage lighting.
The Optimal IV Star Series assemblies have emitted colors of blue (455 -- 460 nanometers), green (530 -- 535 nanometers), red (620 -- 630 nanometers), amber (585 -- 595 nanometers), and daylight white.
Typical forward voltage at 350 milliamp ranges from 2.5 to 3.9 volts for the RGBA devices, and 8.6 to 13.1 volts for the mono-color assemblies, while luminous flux at 350 milliamp ranges from 5 lm to 36 lm and 29 lm to 162 lm, depending on LED color.
Viewing angle for the RGBA and mono-color assemblies is 60 degrees. Maximum allowable junction temperature is 130 degrees Celsius, with an operating temperature range of -50 to 100 C.
For more information contact Optek online at www.optekinc.com.
