Optical lens and lighting device having the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCHEN-HAN LIN
Life of this patent
Estimating the term…
Abstract
An optical lens includes a light incident surface, a light emitting surface, and a side surface between the light incident surface and the light emitting surface. The light emitting surface is a convex and curved surface opposite to the light incident surface. The light incident surface defines a receiving chamber. The receiving chamber is cone-shaped and concave in a direction from the light incident surface toward the light emitting surface. The side surface has a rugged structure and is a frosted surface to diffuse light therethrough. A lighting device having the optical lens is also provided.
Claims15
An optical lens, comprising:
- a light incident surface;
- a light emitting surface, the light emitting surface being a convex and curved surface opposite to the light incident surface;
- and
- a side surface interconnecting the light incident surface and the light emitting surface;
- wherein the light incident surface defines a receiving chamber configured for receiving light from a light source, the receiving chamber is cone-shaped and concave in a direction from the light incident surface to the light emitting surface, and the side surface has a rugged structure and is a frosted surface, configured for diffusing the light from the light source and through the side surface.
A lighting device, comprising:
- an optical lens comprising a light incident surface, a light emitting surface, and a side surface interconnecting the light incident surface and the light emitting surface, the light emitting surface being a convex and curved surface opposite to the light incident surface, the light incident surface defining a receiving chamber, the receiving chamber being cone-shaped and concave in a direction from the light incident surface toward the light emitting surface, the side surface having a rugged structure and being a frosted surface capable of diffusing light radiating therethrough;
- and
- a light emitting diode located at a side of the light incident surface away from the light emitting surface, light from the light emitting diode emitting into the optical lens via the receiving chamber and the light incident surface defining the receiving chamber, and emitting out of the optical lens via the light emitting surface and the side surface, the light emitting out of the optical lens via the side surface being diffused by the side surface.
Dependencies are inferred from the claim text.