Retaining frame having at least one optical element

• US 8,552,627 B2
• Filed: 07/13/2009
• Issued: 10/08/2013
• Est. Priority Date: 07/16/2008
• Status: Active Grant

• Current Assignee: Osram Beteiligungsverwaltung GmbH (Ams-Osram AG)
• Original Assignee: OSRAM GmbH (Ams-Osram AG)
• Inventors: Frey, Peter, Reiners, Thomas, Vollmer, Ralf
• Primary Examiner(s): Roy, Sikha
• Application Number:
  US13/054,617
• Publication Number:
  US 20110121708A1
• Time in Patent Office: 1,548 Days
• Field of Search: 313/110, 313/113
• US Class Current: 313/110
• CPC Class Codes: F21S 41/28 Cover glass
• CPC Class Codes: F21S 41/322 the reflector using total internal reflection
• CPC Class Codes: F21S 41/43 characterised by the shape thereof
• CPC Class Codes: F21S 41/55 Attachment thereof
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A retaining frame (2) having at least one optical element (3) secured thereto by injection molding, with the at least one optical element (3) being embodied for beam shaping at least by means of total internal reflection and/or diffraction.

Claims

1. A retaining frame having at least one optical element secured thereto by injection molding, with the at least one optical element being configured to beam shaping by at least one of total internal reflection and diffraction;

wherein the optical element includes at least two laterally arranged projections for securing the optical element to the retaining frame, and

wherein said at least two laterally arranged projections are held on the retaining frame by a marginal arch, the optical element being molded to the retaining frame only at said laterally arranged projections by said marginal arch while a remaining surface of the optical element is not connected to the retaining frame.

2. The retaining frame as claimed in claim 1, wherein the optical element includes a freeform concentrator-like region, a CPC-like region, a CEC-like region, and/or a CHC-like region.

3. The retaining frame as claimed in claim 1, wherein the retaining frame consists of a thermoplastic material.

4. The retaining frame as claimed in claim 3, wherein the thermoplastic material comprises polyphenylene sulfide (PPS).

5. An illumination device having the retaining frame as claimed in claim 1, comprising at least one semiconductor light source, downstream of which the optical element is connected.

6. An illumination device having the retaining frame as claimed in claim 1, comprising at least one light-emitting diode downstream of which the optical element is connected.

7. The illumination device of claim 6, wherein the illumination device is a vehicle-headlight module.

8. An illumination device having the retaining frame as claimed in claim 1, comprising at least one semiconductor light source downstream of which the optical element is connected as primary optics.

9. The illumination device of claim 8, wherein the illumination device is a vehicle-headlight module.

10. A method for producing a system comprising a retaining frame and an optical element secured thereto, the method comprising:

injection-molding the retaining frame; and

molding the optical element to the retaining frame while performing the injection molding of the frame only at at least two laterally arranged securing projections;

wherein the optical element is molded to the retaining frame only at said at least two laterally arranged securing projections by a marginal arch while a remaining surface of the optical element is not connected to the retaining frame.