# US 2013/0154137 A1 · Optical element and method for the production thereof

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- Number: US 2013/0154137 A1
- Document ID: US20130154137A1
- Status: Published application
- Kind: A1
- Application number: 13/766,154
- Filed: 2013-02-13
- Published: 2013-06-20
- Earliest claimed: 2005-01-31
- Assignees: OSRAM Opto Semiconductors GmbH
- Inventors: Mario Wanninger
- Web page: https://patentgrep.com/patent/US20130154137A1

## CPC

- B29D 11/00009: {Production of simple or compound lenses}
- B29C 45/14778: {the article consisting of a material with particular properties, e.g. porous, brittle}
- B29D 11/00634: {Production of filters}
- B29D 11/00663: {Production of light guides}
- B29D 11/00721: {involving preforms for the manufacture of light guides}
- G02B 1/10: Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence)
- G02B 5/20: Filters (polarising elements G02B5/30)
- G02B 6/0001: {specially adapted for lighting devices or systems (lighting or signalling on vehicles using light guides B60Q1/00; lighting devices for vehicle dashboards B60Q3/10; lighting devices for vehicle interior using light guides B60Q3/62; lighting devices mounted on the vehicle rear part using light guides F21S43/235; measuring arrangements having light conducting pointers G01D13/265; illumination of liquid crystal displays G02F1/1336; illuminated signs G09F13/00)}
- G02B 6/0051: {Diffusing sheet or layer}
- G02B 6/0065: {Manufacturing aspects; Material aspects}
- B29K 2995/0026: Transparent
- B29L 2011/00: Optical elements, e.g. lenses, prisms
- B29L 2031/3061: {Number plates}
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

Described is an optical element for guiding electromagnetic radiation. The optical element includes a base body and at least one film, wherein the film is configured to adhere to the base body to form an intimate connection with the base body without using an adhesion promoting interlayer and is arranged such that the electromagnetic radiation passes through it.

## Claims

### Claim 1

A method for producing an optical element comprising a base body, a film, and a reflector film, in which said film is configured to adhere to said base body and to form a connection with said base body without using an adhesion-promoting interlayer, said film being disposed between said base body and said reflector film, said film and reflector film defining an air gap between said reflector film and said film, said method comprising
placing the film in an injection mold, and
filling the injection mold with a filler material operative to form the base body, such that said connection is formed between said filler material and said film.

### Claim 2 (depends on 1)

The method as in claim 1, wherein said reflector film is arranged on said film with said air gap existing between said reflector film and said film.

### Claim 3 (depends on 1)

The method as in claim 1, wherein said filler material is a transparent material.

### Claim 4 (depends on 3)

The method as in claim 3, wherein said filler material contains at least one of the following materials: an epoxy resin, acrylic resin or silicone resin.

### Claim 5 (depends on 1)

The method as in claim 1, wherein the filler material contains particles for scattering electromagnetic radiation.

### Claim 6 (depends on 1)

The method as in claim 1, wherein said base body is produced by injection molding.

### Claim 7 (depends on 1)

The method as in claim 1, wherein said film is transparent or translucent.

### Claim 8 (depends on 1)

The method as in claim 1, wherein said film contains particles for scattering electromagnetic radiation.

### Claim 9 (depends on 1)

The method as in claim 1, wherein said film contains a phosphor.

### Claim 10 (depends on 1)

The method as in claim 1, wherein said film has a non-smooth structure.

### Claim 11 (depends on 1)

The method as in claim 1, wherein said film is arranged such that it completely surrounds said base body in at least one cross section.

### Claim 12 (depends on 1)

The method as in claim 1, wherein said reflector film is arranged such that it completely surrounds said base body in at least one cross section.

### Claim 13 (depends on 1)

The method as in claim 1, wherein said optical element is configured as a waveguide.

### Claim 14 (depends on 13)

The method as in claim 13, wherein the waveguide is configured in a rope-shaped manner.