# US 2009/0260753 A1 · Method for Production of an Optical Mirror

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- Number: US 2009/0260753 A1
- Document ID: US20090260753A1
- Status: Published application
- Kind: A1
- Application number: 11/991,974
- Filed: 2006-09-11
- Published: 2009-10-22
- Earliest claimed: 2005-09-15
- Assignees: Novatec Biosol AG
- Inventors: Martin Selig; Max Mertins
- Web page: https://patentgrep.com/patent/US20090260753A1

## CPC

- F24S 23/82: {characterised by the material or the construction of the reflector}
- F24S 2023/832: {curved}
- F24S 2025/601: {by bonding, e.g. by using adhesives}
- Y02E 10/40: Solar thermal energy, e.g. solar towers
- F24S: SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G6/00)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

In order to produce heliostats, which are used in solar-thermal power stations, the method according to the invention provides for a mirror plate (1) to be placed on a mount structure (2) using a required-shape mould (5) and with the interposition of adhesion means (6). The required-shape mould (5) and the position and orientation with respect to a defined reference point are in this case transferred to the mirror plate (1) and are modeled into the adhesive means (6). Once the adhesive means (6) have cured, the required-shape mould (5) is removed, after which its shape is embossed in the mirror plate (1).

## Claims

### Claim at position 1

1: Method for the production of an optical mirror, particularly for a solar collector, whereby a mirror pane (1) that has a reflection side (3) and an adhesive side (4) is applied to a carrier construction (2), and the mirror sane (1) is drawn onto a reference mold (5) with its reflection side (3),
wherein subsequently, the mirror pane (1) together with the reference mold (5) is set onto the carrier construction (2), with its adhesive side (4), with the interposition of an adhesive (6), whereby the reference mold (5) is separated from the mirror pane (1) when the adhesive (6) has at least approximately hardened.

### Claim at position 2 (depends on 1)

2: Method according to claim 1, wherein before assembly, the mirror pane (1) is accommodated on the reference mold (5) at least approximately with shape fit, the adhesive (6) is applied to the carrier construction (2), and the mirror pane (1) is pressed into the adhesive (6) with the adhesive side (4), over its full area, in such a manner that the reflection side (3) of the mirror pane (1) represents the surface of the reference mold (5) with at least approximate precision.

### Claim at position 3 (depends on 2)

3: Method according to claim 2, wherein the adhesive (6) is applied to the carrier construction (2) only at individual support points (7).

### Claim at position 4 (depends on 1)

4: Method according to claim 1, wherein a rigid construction is used as the carrier construction (2).

### Claim at position 5 (depends on 1)

5: Method according to claim 1, wherein the mirror pane (1) consists of a stiff but bendable material.