New Point Source LEDs Address High End Optoelectronic Applications

Developed primarily for optical encoder, optical switch, scanning and precision edge sensing applications, Marktech Optoelectronics' new line of Point Source IR LEDs are designed to deliver precise and consistent performance in the most demanding environments.

The Marktech Point Source LED utilizes a unique, new LED die configuration which provides an unobstructed, radiated beam pattern by masking the die and relocating the topside electrode (see figure 1). By eliminating the "dark spot" typically associated with the center of conventional LEDs, the point source LED yields superior results when used with application specific optics to obtain desired radiation pattern characteristics. The devices also offer an extremely low thermal coefficient. Marktech Optoelectronics offers Point Source LEDs with or without optics to provide the designer with optimum flexibility in sophisticated design efforts. Point Source LEDs supplied with factory optics provide an extremely narrow, near parallel radiation pattern. The optical grade, parabolic glass lens is specifically designed to optimize the effects of the Point Source chip. Devices supplied without optics are supplied with a glass window allowing the designer to utilize proprietary columating or other application specific optics to take full advantage of the undistorted beam.