The DieMount Spotlight LED are fabricated with the technology of microstructured submounts like the fiber-chip coupled products, too. But instead of coupling the light to a light guiding waveguide, the spotlight setups couple the light from the metallic microreflector to a parabolic plastic reflector. The plastic reflector is a geometrical continous extension of the metallic micro reflector and reflects the light at its borders by total reflection. The combination of metallic and plastic reflector acts like a long parabolic reflector with the LED die in the focal point.
The spotlight LED setups emit the complete LED light with high efficiency to a small solid angle of typically ±3-4°. The light losses as typical for other LED packages at larger angles to the optical axis are avoided to a large extent. Optical ray formation is done by the combination of the metallic reflector around the LED die and an inserted plastic reflector acting by total reflection.
The LED package design allows the very efficient illumination of distant objects. LED driver currents can be low with a long LED lifetime and a low power consumption as a consequence.
Very important for many applications is the spotlight attribute to emit "cold light" without parts in the infrared spectrum. This allows the application in combination with temperature sensitive materials, close to temperature sensitive sensors or food products like e.g. chocolates.

The spotlight LED is available now in two versions:

• as spotlight LED with standard LED dice with an edge length up to 340µm and a typical maximum operating current of 30 to 50mA, and
• as PowerLED spotlight with PowerLED dice with up to 1mm edge length and a typical maximum operating current of 350mA.

Main application for standard spotlight LED is the very efficient illumination of small objects. The spotlight setup couples nearly all the light from the LED die to the small radiation angle. Technology induced losses only cause the loss of some optical power at the lateral module.

The rather parallel radiated light allows the realization of white light sources by the mixture of the basic light colours red, green and blue. Each wavelength (evern infrared up to 1.3µm wavelength) is available.

To realize the spotlight LED setup design for PowerLED dice with 1W typical electrical power consumption a novel concept for heat dissipation was necessary. Unlike conventional PowerLED setups the  DieMount PowerLED module electrical power losses are removed by the module's aluminium housing. This housing is thermally well coupled to the metallic submount and comprises black anodized cooling ribs for efficient heat dissipation. Due to this design the module is connected without problems to standard FR4 printed circuit boards.

Download data sheet PowerLED spotlight

Brand-new: the PowerLED spotlight setup is available now in a version with 3 LED dice of different colours; red, green and blue. By electronic switching the spotlight colour can be changed.


Download data sheet RGB LED spotlight