Patent ID: 8764229

Claim:
An illumination device comprising: a light source array comprising a number of light sources, a lens assembly positioned above said light source array, said lens assembly comprises a number of optical TIR lenses and a lens holder, wherein: each of said optical TIR lenses comprises a central lens part and a peripheral lens part, the central lens part comprises a central entrance surface and a central exit surface and the peripheral lens part surrounds at least a part of the central lens part and comprises a peripheral entrance surface, a peripheral reflection surface and a peripheral exit surface; and said lens holder comprises a mounting plate having a number of holes, said number of holes being adapted to accommodate said optical TIR lenses; wherein at least one of said holes is at least partially surrounded by a number of resilient fingers extending from said mounting plate and towards said light sources, a tip of said resilient fingers comprising a first mating portion and said peripheral reflection surface comprising a second mating portion, said first mating portion and said second mating portion adapted to engage each other such that each of said optical TIR lenses is secured in relation to one of said holes and arranged above at least one of said light sources.