Lens and light source module
AssigneeFoxsemicon Integrated Technology, Inc.
InventorHSIU-PING CHANG
Life of this patent
Estimating the term…
Abstract
A lens includes a light incident surface, a first light emitting surface, and a second light emitting surface. The light incident surface is a concave surface and defines a receiving recess. The first light emitting surface is a convex curved surface and is opposite to the light incident surface. The first light emitting surface includes a first border, and the first light emitting surface and the light incident surface cooperatively form a convex lens portion with an optical axis. The second light emitting surface is located at a side of the first light emitting surface and adjacent to the first border. The longer the distance between a point of the second light emitting surface and the optical axis is, the longer the distance between the point and the light incident surface is.
Claims20
A lens comprising:
- a light incident surface, the light incident surface being a concave surface and defining a receiving recess;
- a first light emitting surface, the first light emitting surface being a convex curved surface and opposite to the light incident surface, the first light emitting surface comprising a first border, the first light emitting surface and the light incident surface cooperatively forming a convex lens portion with an optical axis;
- and
- a second light emitting surface located at a side of the first light emitting surface adjacent to the first border, the longer the distance between a point of the second light emitting surface and the optical axis being, the longer the distance between the point and the light incident surface being.
A light source module comprising:
- a light source;
- and
- a lens, the lens comprising:
- a light incident surface facing the light source, the light incident surface being a concave surface and defining a receiving recess;
- a first light emitting surface, the first light emitting surface being a convex curved surface and opposite to the light incident surface, the first light emitting surface comprising a first border, the first light emitting surface and the light incident surface cooperatively forming a convex lens portion with an optical axis;
- and
- a second light emitting surface located at a side of the first light emitting surface adjacent to the first border, the longer the distance between a point of the second light emitting surface and the optical axis being, the longer the distance between the point and the light incident surface being.
Dependencies are inferred from the claim text.