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RGB LEDs give off all visible colours

Posted: 11 Sep 2006     Print Version  Bookmark and Share

Keywords:TT electronics  Optek Technology  LED modules  RGB LEDs  light emitting diodes 

Optek Technology's RGB LEDs produce all colours in visible spectrum

TT electronics Optek Technology has developed a comprehensive range of discrete RGB LEDs to enable design engineers to create colours along the entire visible spectrum. Available in a variety of sizes and viewing angles, the full colour surface mount family consists of LED modules that feature both flat and domed lenses.

According to Richard Saffa, VP of Optek Technology's visible led business unit, the comprehensive range of surface mount RGB LEDs has allowed the company to expand into additional markets. "Not only are these RGB LEDs capable of producing all colours in the visible spectrum, but the wide variety of surface mount LED packages give design engineers a choice of dimensions, lens options and viewing angles," Saffa explained. "Providing customers with an extensive range of RGB LEDs gives them illumination options that are ideal for a variety of applications, including portable appliances, as well as entertainment and amusement equipment."

Additional applications for the RGB LED family include mobile phones and pagers; automotive interior and exterior lighting; indoor and outdoor signage and displays; telecommunications applications, such as indicators and backlighting in telephones and fax machines; camera flashes; and flat backlight devices, such as LCDs, membrane switches and symbols.

The full-colour RGB surface mount LED family includes: (1) OVSTRGBAC6 full-colour top-view chip LED with 110° viewing angle. Each chip in this device is individually addressable, providing colour on-demand; (2) OVSTRGBFC6 full-colour SMT chip LED is housed in a 3.5 x 3.0 x 1.4mm package and features multiple wide viewing angles; (3) OVSTRGBLC6 full-colour top-view chip LED replicates OVSTRGBAC6 but adds a lens over each die to narrow the viewing angles for applications where more focused emitted light is required; (4) OVSARGB3R8 full-colour PLCC4 LED with 120° viewing angle. This LED package features a 3-die design and is compatible with automatic placement equipment as well as infrared and vapor phase reflow solder; and, (5) OVSTRGBBCR8 PLCC6 LED combines a wide viewing angle, low power consumption, tuneable colour mix and high light output.

All of the surface mount RGB LEDs feature AllnGaP/InGaN material with water clear lenses. The LC6 and FC6 LEDs have a pulsed forward current of 100mA and operating temperature is -30°C to 80°C. The AC6 top-view chip LED has a reverse voltage of 5V per chip and operating temperature is -30°C to 85°C.

The PLCC LED devices feature a reverse voltage of 5V, and a peak forward current of 200mA for the red LEDs and 100mA for the green and blue LEDs. Operating temperature range is -40°C to 100°C.

Typical pricing for the RGB surface mount LED family devices starts at Rs.44.25 (95 cents) each in quantities of 10,000 pieces. Production quantity lead times, if stock is not available, are from 8 to 10 weeks.




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