Abstract: Optical lens (3) for a LED comprising a lens body (10) having: —a light-entering section (1), where light from the LED enters the lens (3), having a cross-sectional dimension (D2) and recessed to accommodate a LED; —a light-emitting front face (2); —a frusto-conical shape (4), extending along a central axis between the light-entering section (1) and the light-emitting front face (2), the outer surface of which incorporating a plurality of densely-distributed convex facets (24); —a height (H) along said central axis; —a cross-sectional width (D1) at the level of the light-emitting front face (2). This optical lens enhances light utilization efficiency, avoids creating spots with chromatic aberration hence greatly improves color rendering.

Abstract: LED-integrated lens comprising a light-entering section (1) in the shape of a hole, a light-emitting section (2) in the shape of a cup, incorporating an optical lens (3) positioned between said light-entering and light-emitting sections (1, 2) wherein the external surfaces of the light-entering (1) and of the light-emitting (2) sections include portions having densely-distributed convex facets. This lens enhances light utilization efficiency, avoids creating spots with color aberration hence greatly improves color rendering.

Abstract: Optical lens (3) for a LED comprising a lens body (10) having: —a light-entering section (1), where light from the LED enters the lens (3), having a cross-sectional dimension (D2) and recessed to accommodate a LED; —a light-emitting front face (2); —a frusto-conical shape (4), extending along a central axis between the light-entering section (1) and the light-emitting front face (2), the outer surface of which incorporating a plurality of densely-distributed convex facets (24); —a height (H) along said central axis; —a cross-sectional width (D1) at the level of the light-emitting front face (2). This optical lens enhances light utilisation efficiency, avoids creating spots with chromatic aberration hence greatly improves colour rendering.

Abstract: LED-integrated lens comprising a light-entering section (1) in the shape of a hole, a light-emitting section (2) in the shape of a cup, incorporating an optical lens (3) positioned between said light-entering and light-emitting sections (1, 2) wherein the external surfaces of the light-entering (1) and of the light-emitting (2) sections include portions having densely-distributed convex facets. This lens enhances light utilisation efficiency, avoids creating spots with colour aberration hence greatly improves colour rendering.