LED light source

A lighting module comprising:

• a substrate,
• an array of light emitting diodes mounted on the substrate;
• and
• an optical structure encompassing the array of light emitting diodes for approximating in operation the array of light emitting diodes as a single light source, wherein the optical structure comprises a plurality of optical elements,
• wherein each optical element of the plurality of optical elements is arranged to provide, when observing a given light emitting diode of the array through the optical element with the lighting module in operation, a luminous intensity profile I as a function of a deviation angle α which is substantially constant between −αmax and αmax, wherein the deviation angle is an angle between a central line and light rays forming an image of the given LED appearing from the optical element, wherein the central line is formed between the center of the given LED and the center of the optical element wherein αmax is the angle between the central line and a light ray defining an outer edge of the image of the given LED appearing from the optical element, and wherein the magnitude of αmax provided by each optical element depends on the position of the optical element on the optical structure.