US 2015/0029722 A1 · LENS UNIT AND LIGHT SOURCE MODULE WITH SAME

Abstract

The present disclose relates to a lens unit. The lens unit includes a first lens and a second lens. The first lens includes a first light input surface, a first light output surface opposite to the first light input surface and a first side surface connected to the first light output surface. The first lens has a first refractive index. The second lens defines a cavity at a light input surface thereof for receiving the first lens. The second light output surface of the second lens contacts the first light output surface and the first side surface of the first lens. The second lens has a second refractive index which less than the first refractive index. The present disclose also relates to a light source module with the lens unit.

Claims14

Dependent claims

A lens unit used for adjusting light emitted from a light source, the lens unit comprising:

a first lens comprising a first light input surface, a first light output surface opposite to the first light input surface and a first side surface connected to the first light output surface, the first light output surface being an aspheric surface, the first lens having a first refractive index;
and
a second lens comprising a second light input surface and a second light output surface opposite to the second light input surface, the second lens defining a cavity at the second light input surface, the first lens being received in the cavity, and the second light input surface contacting the first light output surface and the first side surface of the first lens, the second lens having a second refractive index which less than the first refractive index.

Dependencies are inferred from the claim text.

Lens unit and light source module with same

Life of this patent

Lens unit and light source module with same

Life of this patent

Abstract

Claims14