LED engine hosted on a THS - art. no. 648607

The forced-air Turbo Heat Sink/THS, an effective cooler and hermetic housing for electronic systems, is feasible in AlN, a ceramics sporting low TCE and high thermal conductivity, similar to Al. The deep air-cooling channels and the conical sides of the thermal risers are formed before firing, by milling or compacting the powders; next, the mounting plane and the riser-tips are ground and coated with multilayer tracks. The mounting plane solders directly the dices and later the LEDs. The mu-processor based hybrid electronics includes IOs, drivers, converters, opto and thermal sensors. Compared with Laser Diodes, current LEDs are cheaper but far less efficient. Extracting most of the light, ageing and a weak structure seem the main problems. Seating each LED on a broad, shallow cone, a fair emissions share reaches its mirror. This thermally effective mount, able to collect the lateral emissions, as on LDs, widens the R&D options. The applications are very broad and some are delineated. An assembly including more secondary mirrors, curved or rotating, can form an RYG traffic-light, a beacon/lighthouse, or the smart engine for a projection display. Each lighting engine fully controls many shaped beams and more FOs to deliver light on longer distances. Both forms of digitally ruled illuminators suit many highly-engineered manned-units, like sea, air, land vehicles or hotel suites. Many traditional UV sources are forced out of this important field. Now, a field of UV LEDs can generate large powers to sanitise air, waters etc, while the not so coarse focus of a common compound mirror can cure adhesives.