Optical lens and light source module having the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorYung-Chang Tseng
Life of this patent
Estimating the term…
Abstract
A lens for diverging light includes a bottom surface, a recess defined in the bottom surface, a lower inner curved surface in the recess, and an upper outer curved surface. The lower inner curved surface is configured for receiving light emitted from a light source. The lower inner curved surface includes an inwardly curved lower portion adjacent to the bottom surface, a flat surface portion arranged at a center of a bottom in the recess, and an inwardly curved intermediate portion connected between the lower portion and the flat surface portion. The upper outer curved surface faces away from the bottom surface.
Claims17
A lens for diverging light, comprising:
- a bottom surface;
- a recess defined in the bottom surface;
- a lower inner curved surface in the recess, the lower inner curved surface configured for receiving light emitted from a light source, the lower inner curved surface comprising an inwardly curved lower portion adjacent to the bottom surface, a flat surface portion arranged at a center of a bottom in the recess, and an inwardly curved intermediate portion connected between the lower portion and the flat surface portion;
- and
- an upper outer curved surface facing away from the bottom surface;
- wherein the inwardly curved lower portion protrudes towards the upper outer curved surface, and the inwardly curved intermediate portion protrudes towards the bottom surface.
A light source module comprising:
- a light source;
- and
- a lens including:
- a bottom surface;
- a recess defined in the bottom surface facing the light source;
- a lower inner curved surface in the recess, the lower inner curved surface configured for receiving light emitted from the light source, the lower inner curved surface comprising an inwardly curved lower portion adjacent to the bottom surface, a flat surface portion arranged at a center of a bottom in the recess, and an inwardly curved intermediate portion connected between the lower portion and the flat surface portion;
- and
- an upper outer curved surface facing away from the bottom surface for emitting light;
- wherein the inwardly curved lower portion protrudes towards the upper outer curved surface, and the inwardly curved intermediate portion protrudes towards the bottom surface.
A lens for diverging light, comprising:
- a bottom surface;
- a recess defined in the bottom surface;
- a lower inner curved surface in the recess, the lower inner curved surface comprising an inwardly curved lower portion adjacent to the bottom surface, a flat surface portion arranged at a center of a bottom in the recess, and an outwardly curved intermediate portion connected between the lower portion and the flat surface portion;
- an upper outer light emitting curved surface facing away from the bottom surface, the upper outer curved surface comprising a central concave surface aligned with the recess, a convex peripheral surface surrounding the concave surface, wherein the inwardly curved lower portion is configured to receive and direct light from the light source to the convex peripheral surface, the flat surface portion and the intermediate portion are configured to receive and direct light from the light source to the central concave surface;
- wherein the inwardly curved lower portion protrudes towards the upper outer curved surface, and the inwardly curved intermediate portion protrudes towards the bottom surface.
Dependencies are inferred from the claim text.