LED module comprising a dome-shaped color conversion layer

US8502251B2 · kind B2 · utility

Assignees

• Ledon Lighting Jennersdorf GmbH · AT
• LUMITECH PRODUKTION UND ENTWICKLUNG GMBH · AT

Inventors

• Wolfgang Oberleitner · Wien, AT
• Krisztian Sasdi · Pornóapáti, HU
• Erwin Baumgartner · Esslingen am Neckar, DE

Key dates

• Filing date: Apr 29, 2009
• Grant date: Aug 6, 2013
• Expiry date: Jan 28, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2224/8592

Abstract

An LED module comprises at least one LED chip emitting monochromatic light having a first spectrum, a platform on which the LED chip is mounted, a reflecting wall that is separate from or integrated into the platform and surrounds the LED chip on all sides, and a dispensed layer applied above the LED chip. The dispensed layer extends in a dome-shaped manner beyond the reflecting wall such that the following equation is satisfied: 0.1*b≦h≦0.5*b where h is the height of the dome-shaped dispensed layer, measured from the topmost point of the reflecting wall to the apex of the dome, and b is the diameter of the depression formed by the reflecting wall, measured as the distance from the central axis of the wall.