Products, Materials & Tools | Feb 11, 2014

Vossloh Schwabe Provides LED Heatsink Based on Thermoplastics from LATI

Lightweight, efficient, environmentally friendly, and cost-effective; above all, deeply innovative. - That is how the new heat sinks for LED lighting systems developed by Vossloh Schwabe using LATICONTHER® 62 GR/50, a specially designed material from LATI, could be described.

This PA6-based thermally conductive grade allows effective cooling of electronic components and LEDs thanks to a special graphite added to the compound in a quantity of 50% by weight, and featuring a structure that allows preferential heat transfer paths.

The base resin was chosen in cooperation with Vossloh Schwabe bearing in mind that the primary objective is the proper and smooth filling of mold cavities operating under non-extreme conversion conditions.

After molding process tuning, the geometry of the items was also fine-tuned to ensure high dimensional stability needed for a safe assembly of the radiating element on LED electronics and relevant lenses.
The collaboration between Vossloh Schwabe and LATI resulted in a family of heat sinks of various shapes, sizes and applications.

In fact, heat sinks made of thermally conductive resin are used in modular projects meant to replace conventional halogen or fluorescent lamps for public, corporate, commercial or domestic use (residential or furniture).

The shape and efficiency of the radiating system are carefully calibrated depending on the number of LEDs used and the power of the single device (up to 700 mA each).
Spotlights as well as real solutions designed for direct operation with 230V mains voltage are contained in the Vossloh Schwabe catalog.

The use of injection molded thermoconductive resins allows to obtain even very complex shapes and high dimensional accuracy, thus making the assembly process of finished product more efficient.

The chosen compound is among the most performant of the LATICONTHER® family due to a thermal conductivity of about 10 w/mK, of course lower than that of aluminum, but sufficient for a specially configured solution.

Processing conditions involve temperatures of molten polymer well below those of metal, longer life of the molds and almost no processing after the molding.
These factors allow to obtain an interesting solution not only from a technical point of view, but also in terms of economy and marketing.

The product catalogs and technical support from LATI and Vossloh Schwabe are also available on their respective internet portals.


Samsung LED Pushes Efficiency of Mid-power Packages to Higher Levels

Samsung LED Pushes Efficiency of Mid-power Packages to Higher Levels Samsung Electronics has announced that it has made an important upgrade in the luminous efficacy of its mid-power LED package. The LM301B was introduced to the market with the industry’s highest light efficacy among mid-power LED packages in 2017. Now, it has enhanced the efficacy considerably ... Read more »


LED Patent Lawsuit

Tridonic initiated patent lawsuits against telecommunication retailer S-KON eKontor24 GmbH. Although District Court Munich I affirmed Tridonic’s arguments, parties agreed on a settlement for reasons of legal certainty and prompt settlement of the dispute. Read more »


Proof Your Blue Light Hazard Risk: Stray Light Corrected CAS 140D

Proof Your Blue Light Hazard Risk: Stray Light Corrected CAS 140D With the stray light corrected CAS 140D Instrument Systems – as a technical pioneer – is the first to offer an array spectrometer that can reliably assess the blue light hazard from light sources within the prescribed limiting values. Hitherto only double monochromators were recommended for this ... Read more »


Edison Opto Unveils Two Novel-Designed Products in EdiPower Series

Edison Opto Unveils Two Novel-Designed Products in EdiPower Series Edison Opto, a global LED lighting manufacturer, unveils two new products in EdiPower Series for broad lighting applications. First, the Tunable Series with superior CRI of 95 supports two output channels to enable two dimming options to dim LED lighting without a brightness drop. In addition, the ... Read more »


High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »