Illumination apparatus

摘要

An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.

主权项

1. An illumination apparatus whose primary purpose is illumination as opposed to display, comprising:
an optical element array structure; and a light emitting element structure; the optical element array structure and the light emitting element structure are each respective separate structures before being assembled together; the optical element array structure comprising a plurality of optical elements, wherein the optical elements are catadioptric, reflective or refractive, and the optical elements are arranged in an array; the light emitting element structure comprising a substrate and a plurality of light emitting elements arranged on the substrate; the optical element array structure and the light emitting element structure being arranged such that the optical elements of the optical element array structure are aligned with the light emitting elements of the light emitting element structure; and the optical element array structure further comprises optical element electrodes disposed on a bottom part of the optical element array structure that provide an electrical connection to the plurality of light emitting elements, wherein a gap is defined between at least a portion of the optical element electrodes and the light emitting element structure.