Schreder

Luigi Donato

Hervé Damoiseau

Herve Damoiseau

A light-emitting diode module includes a printed circuit board with a light-emitting diode array mounted on first surface. A secondary lens array is positioned over the light-emitting diode array and includes a secondary lens element for each light-emitting diode element in the light-emitting diode array. A lens holder is mounted to the printed circuit board and configured to retain each secondary lens element of the secondary lens array in alignment in an x-y plane with respect to each light-emitting diode element of the light-emitting diode array. The printed circuit board further includes a first locating feature corresponding to a second locating feature of either the secondary lens array or the lens holder. The locating features align the secondary lens array with respect to the light-emitting diode array on the printed circuit board.

Lens arrays and mountings

An LED module is formed using a method of mounting secondary lens arrays over light-emitting diode arrays on a printed circuit board. In the LED module, a lens array assembly is mounted to a printed circuit board. The lens array assembly comprises a silicone free form lens array which is mounted in a lens holder by aligning markings on the lens holder with markings on the free form lens array. The lens array assembly is correctly positioned, in an x-y plane, on the printed circuit board by the engagement of positioning pins formed on a surface of the free form lens array with corresponding recesses formed in the printed circuit board and is retained in the correct position by clips integrally formed with the lens holder. The positioning pins are shaped to allow for thermal changes due to the operating temperature range of the LED module.

Growing community of inventors

Oreye, Belgium

Luigi Donato