Patent ID: 9651206
Date: 2017-05-16
CPC Classifications: F21K,F21V,F21W,F21Y

Claim:
1. An optic for a LED chip ( 97 ) of the COB type, said optic comprises a second element ( 50 ) realized with an optical transparent material and having a first proximal end ( 51 ) and a second distal end ( 53 ), a second external exit surface ( 58 ) which is positioned in proximity of said second distal end ( 53 ), a first external lateral total internal reflection surface ( 59 ) which is positioned between said first proximal end ( 51 ) and said second distal end ( 53 ) and which is able to redirect and re-distribute a luminous flux produced by said LED chip ( 97 ) towards said second external exit surface ( 58 ), further said second element ( 50 ) comprises a blind internal cavity ( 52 ) realized in proximity of said first proximal end ( 51 ), which extends internally to said second element ( 50 ) substantially along a longitudinal direction ( 90 ) towards said second external exit surface ( 58 ) for housing said LED chip ( 97 ), characterized in that said optic comprises a first element ( 30 ) substantially disc shaped, having a central hole ( 32 ), which extends externally with respect to said second element ( 50 ) in an orthogonal direction with respect to said longitudinal direction ( 90 ), and in addition said first element ( 30 ) and said second element ( 50 ) are formed as a single unitary whole, furthermore said first element ( 30 ) is compressible independently with respect to said second element ( 50 ) for making said LED chip ( 97 ) waterproof and also an electronic board ( 95 ) by avoiding at the same time an undesirable modification in the optical properties of said second element ( 50 ) and by avoiding at the same time the need of a gasket.