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Lednium Series Visible LED Assemblies
Feb 2006
Optek Technology, Industrial Sensing & ControlRequest Info
With a 120° Viewing Angle, 330 Lumen Output
CARROLLTON, Texas, Feb. 22, 2006 -- Combining high-brightness LEDs with three-dimensional packaging technology, TT electronics' Optek Technology has introduced what the company describes as one of the industry’s brightest single-source packaged visible LED assemblies. Designated the Optek Lednium series, the 10-W package offers a full 120° viewing angle for its array of amber, blue, green, red or white LEDs.

Optek Technology manufactures standard and application-specific sensors using infrared, visible, magnetic and fiber optic technologies focused on applications in office machines, industrial equipment, encoders, automotive electronics, military applications and medical diagnostic equipment. Last year Optek signed a joint agreement with Lednium, an Australian LED technology company, to develop a series of solid-state lighting products using Lednium’s packaging technology.
According to Richard Saffa, vice president of Optek Technology’s Visible LED Unit, the Lednium series devices achieve an output of up to 330 lumens with nine 1-W LEDs mounted in an anodized aluminum package just 1.3 in. square, with a board-mounted profile of less than half an inch. “The ability to put high-brightness LEDs in a compact, energy efficient package will have significant impact on the lighting industry,” Saffa explained. “As one of the brightest single-source LED assemblies available today, Optek’s Lednium series devices have the potential to make solid-state lighting a practical reality for a wide range of applications.”

Conventionally-packaged LED arrays with comparable light output often require as many as 12 1-W LEDs in configurations up to 8 in. in diameter, which typically consume more power. The wide viewing angle and increased brightness are critical features for lighting design engineers as they begin to incorporate solid-state light sources into applications such as automotive interior and exterior lighting, indoor and outdoor electronic signage and displays, as well as architectural lighting and general lighting applications.

The Optek Lednium LED assemblies also provide different parallel-serial connections that enable the operation of three, six or all nine of the mounted LEDs, enabling design engineers to vary the light output and power consumption.

Lednium series devices are available in amber (595 nm, 330 lm); blue (467 nm, 60 lm); green (524 nm, 290 lm); red (624 nm, 247 lm); and white (250 lm). All colors feature a full 120° viewing angle in water-clear lenses. In development are other visible, as well as ultraviolet and infrared wavelengths and package configurations.

DC forward current is 1.05 A, with peak pulsed forward current of 3 A. Typical forward voltage characteristics range from 6.3 V to 9.25 V (color-dependent), and reverse voltage for all devices is 15 V. Maximum allowable junction temperature is 130 °C (average thermal resistance junction-to-board is 5 °C/W), and the operating temperature range for the device is -50 to +80 °C.

The Lednium series is stocked by Optek’s distributors in the Americas, Europe and Asia. Production quantity lead times are from stock to six weeks. For more information, visit:; e-mail:

Optek Technology
1645 Wallace Dr.
Carrollton, TX 75006
US Phone: (972) 323-2200 Europe: +33 1-34-24-8788
Fax: (972) 323-2396
Web site:


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