LIGHT SOURCE MODULE

• US 20100103682A1
• Filed: 07/14/2009
• Published: 04/29/2010
• Est. Priority Date: 10/24/2008
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: LIN, DA-WEI
• Application Number:
  US12/502,372
• Publication Number:
  US 20100103682A1
• Time in Patent Office: Days
• US Class Current: 362/307
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 7/0016 on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light source module includes a light emitting component, a reflector and a transflective optical element. The reflector has a reflective surface, and the reflective surface defines a central axis. The light emitting component is arranged on the central axis of the reflector. The transflective optical element includes a light incident surface and a light emitting surface. The light incident surface faces the light emitting component and the reflector. The light emitting component is configured for emitting light. A first part of the light enters the transflective optical element through the light incident surface, and emits from the light emitting surface to a first central region. A second part of the light is reflected from the light incident surface to the reflective surface of the reflector, and then is reflected by the reflective surface of the reflector to a first peripheral region surrounding the first central region.

Claims

1. A light source module comprising:

a light emitting component;

a reflector having a reflective surface, the reflective surface defining a central axis, the light emitting component being arranged on the central axis of the reflector; and

a transflective optical element comprising a light incident surface and a light emitting surface, the light incident surface facing the light emitting component and the reflector, the light emitting component being configured for emitting light towards the transflective optical element, wherein a first part of the light enters the transflective optical element through the light incident surface, and emits from the light emitting surface to a first central region, and a second part of the light is reflected by the light incident surface of the transflective optical element to the reflective surface of the reflector, and then is reflected by the reflective surface of the reflector to a first peripheral region surrounding the first central region.

2. The light source module of claim 1, wherein the reflective surface is a convex surface facing the tranflective optical element.

3. The light source module of claim 2, wherein the reflective surface is a spherical surface or an ellipsoidal surface.

4. The light source module of claim 1, wherein the reflector has a through hole defined therein, and the light emitting component is received in the through hole.

5. The light source module of claim 1, wherein the light source module further comprises a circuit board, and the light emitting component is mounted on the circuit board.

6. The light source module of claim 5, wherein the light source module further comprises a heat sink in thermal contact with the circuit board.

7. The light source module of claim 1, wherein the transflective optical element is a circular plate, and the central axis of the reflector passes a geometric center of the transflective optical element.