# US 9,753,190 B2 · Adhesive with embedded waveguides for curing

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,753,190 B2
- Document ID: US9753190B2
- Status: Granted
- Kind: B2
- Application number: 14/012,355
- Filed: 2013-08-28
- Published: 2015-03-05
- Granted: 2017-09-05
- Earliest claimed: 2013-08-28
- Assignees: Corning Incorporated
- Applicants: Corning Incorporated
- Inventors: Paul Gerard Dewa; Justin Paul Gales; Robert Dennis Grejda; Todd Robert McMichael; Paul John Shustack
- Web page: https://patentgrep.com/patent/US9753190B2

## CPC

- G02B 1/12: by surface treatment, e.g. by irradiation
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 38/0008: {Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation (heat treatment B32B38/0036)}
- C08K 7/18: inorganic
- C09J 4/00: Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16}
- C09J 5/00: Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J 11/04: inorganic
- G02B 7/025: {using glue}
- G02B 7/182: for mirrors
- G02B 5/0242: {by means of dispersed particles}
- G02B 5/0268: {characterized by the fabrication or manufacturing method}
- G02B 5/0294: {adapted to provide an additional optical effect, e.g. anti-reflection or filter}
- Y10T 428/259: Silicic material
- Y10T 428/31515: As intermediate layer
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An optical device includes a support structure configured to retain an optical element using a cured adhesive composition that is disposed between a surface of the support structure and a surface of the optical element, wherein a structured optical particulate material is dispersed throughout the cured adhesive. The structured optical particulate material redirects curing radiation via a scattering mechanism to facilitate curing of portions of the adhesive compositions that cannot be directly exposed to the radiation, thereby facilitating rapid and more thorough curing than could otherwise be achieved without the structured optical particulate material.

## Claims

### Claim 1

An adhesive composition comprising:
a photocurable material that is substantially transparent to and curable by radiation of a first wavelength, and
a structured optical particulate material dispersed throughout the photocurable material, the structured optical particulate material being capable of scattering the radiation of the first wavelength throughout the photocurable material while not rendering adhesive composition opaque to the radiation of the first wavelength.

### Claim 2 (depends on 1)

The adhesive composition of claim 1, in which the structured optical particulate material is fused silica microspheres.

### Claim 3 (depends on 1)

The adhesive composition of claim 1, in which the structured optical material is capable of absorbing light of a second wavelength.

### Claim 4 (depends on 1)

The adhesive composition of claim 1, further comprising a second particulate material that absorbs radiation of a second wavelength.

### Claim 5 (depends on 1)

An optical device comprising:
a support structure configured to retain an optical element;
an optical element positioned on the support structure; and
a cured adhesive composition of claim 1 disposed between a surface of the support structure and a surface of the optical element to adhesively bond the optical element to the support structure, the cured adhesive composition having a cross-linked polymer matrix material and the structured optical particulate material dispersed throughout the matrix.

### Claim 6 (depends on 5)

The optical device of claim 5, in which at least a section of the cured adhesive composition is disposed in a region between the optical element and the support structure that is not within a direct illumination path of the radiation of the first wavelength.

### Claim 7 (depends on 5)

The optical device of claim 5, in which the structured optical particulate material is fused silica microspheres.

### Claim 8 (depends on 5)

The optical device of claim 5, in which at least a section of the cured adhesive composition is disposed in a region between the optical element and the support structure that is shielded from a direct illumination path of the radiation of the first wavelength by a coating applied to a surface of the optical element.

### Claim 9 (depends on 5)

The optical device of claim 5, in which the optical element is a lens or mirror.

### Claim 10 (depends on 1)

A process for adhesively attaching an optical element to a support structure, comprising:
positioning the optical element on the support structure with a photocurable adhesive composition of claim 1 disposed between a surface of the support structure and a surface of the optical element; and
directing at the photocurable adhesive composition the radiation of the first wavelength.

### Claim 11 (depends on 10)

The process of claim 10, in which at least a portion of the adhesive composition is disposed in a region between the optical element and the support structure that is not within a direct illumination path of the radiation of the first wavelength.

### Claim 12 (depends on 10)

The process of claim 10, in which the structured optical particulate material is fused silica microspheres.

### Claim 13 (depends on 10)

The process of claim 10, in which at least a section of the cured adhesive composition is disposed in a region between the optical element and the support structure that is shielded from a direct illumination path of the radiation of the first wavelength by a coating applied to a surface of the optical element.

### Claim 14 (depends on 10)

The process of claim 10, further comprising applying a surface treatment or coating to a portion of the surface of the optical element before directing the radiation at the photocurable adhesive composition, wherein the surface treatment or coating shields at least a region of the adhesive composition from receiving the radiation along a direct illumination path.

### Claim 15 (depends on 10)

The process of claim 10, in which the optical member is a lens or mirror.

### Claim 16 (depends on 10)

The process of claim 10, in which the structured optical material is capable of absorbing light of a second wavelength.

### Claim 17 (depends on 10)

The process of claim 10, further comprising a second particulate material that absorbs radiation of a second wavelength.

### Claim 18 (depends on 1)

The adhesive composition of claim 1, further comprising a proximal end and a distal end, and wherein the radiation of the first wavelength is incident upon the proximal end and is transmitted from the proximal end to the distal end via said scattering when the radiation of the first wavelength is made incident upon the proximal end.

### Claim 19 (depends on 10)

The process of claim 10, wherein the photocurable adhesive composition has a proximal end and a distal end, and wherein the radiation of the first wavelength is made incident upon the proximal end and is transmitted from the proximal end to the distal end via said scattering.

### Claim 20 (depends on 19)

The process of claim 19, wherein the distal end of the photocurable adhesive composition is not within a direct illumination path of the radiation of the first wavelength.