Files to submit for a laminate with an embedded coating.

Written by Christian Kohler/LBNL, May 8th 2006

To provide the data for a laminate with an embedded coating, we need four spectral data files. All except for one need to have “Structure” lines in them, and all the references in these structure lines should be to other files within this set of four files.

Naming Convention

The naming convention of all the referenced (hidden) files is:

filename-hidden-<date>.ext

The word “hidden” should be part of the name for any of the referenced files. The <date> part is used in all the hidden reference files and helps to identify them as a batch. This could be the date the data is submitted to LBNL, or the date it was measured. The format is yyyymmdd, in this example we’ll use May 8th 2006 (20060508). The .ext extension should be the manufacturers regular extension, in this example we use .txt. The total length of the longest filename should be less then 50 characters. In this example the longest filename is: Coated-Substrate-hidden-20060508.txt which is 36 characters.

Please also see: HYPERLINK "http://windows.lbl.gov/materials/IGDB/Documentation/Documentation.htm" http://windows.lbl.gov/materials/IGDB/Documentation/Documentation.htm

LamEmbeddedCoating.txt

This file contains a measurement of the complete assembly: coated glass and the interlayer. The structure file looks like this:

{ Structure: Substrate-hidden-20060508.txt;3.048;False

+Interlayer-hidden-20060508.txt;2.28;False

+Coated-Substrate-hidden-20060508.txt;2.9972;True }

All the referenced files in the structure line have “-hidden” added to the name. This is a naming convention to indicate that the files are not viewable in Optics5 or WINDOW. They are only submitted to provide references for the laminate with embedded coating.

The structure in this case is:

Substrate-hidden-20060508.txt, a reference to a spectral data file of an uncoated piece of glass that is used in the laminate. If a manufacturer is submitting multiple laminates, all made with glass from the same batch, he/she only needs to submit one hidden substrate file, all the other submissions in the same batch can reference this hidden substrate file.

Interlayer-hidden-20060508.txt, a reference to the file that contains the interlayer data, in the form of a self referencing laminate.

Coated-Substrate-hidden-20060508.txt, a reference to a spectral data file of a coated piece of glass that was used in the laminate. For this example we assume that the substrate of the coated piece of glass is the same substrate as the other (uncoated) piece of glass in the laminate

Interlayer-hidden-20060508.txt

This is what is a self-referencing clear laminate without embedded coating.

The structure line is:

{ Structure: Substrate-hidden-20060508.txt;3;False

+Interlayer-hidden-20060508.txt;2.28;False

+Substrate-hidden-20060508.txt;3;False }

The only difference with the 20060508.txt file is that this is a laminate without the coating on the glass. Same 2 pieces of glass, same interlayer. This files is self referencing, meaning that the file name (Interlayer-hidden.txt) also appears in the structure line.

The structure is:

Substrate-hidden-20060508.txt, a reference to a spectral data file of an uncoated piece of glass that is used in the laminate

Interlayer-hidden-20060508.txt, the same name as the file itself, making it self referencing.

Substrate-hidden-20060508.txt, a reference to a spectral data file of an uncoated piece of glass that is used in the laminate

Coated-Substrate-hidden-20060508.txt

This is a spectral data file for the coated substrate. This is not a measurement on the laminate, just one piece of coated glass.

There is no structure line, just a substrate reference:

{ Substrate Filename: Substrate-hidden-20060508.txt }

This line indicates what the substrate is.

Substrate-hidden-20060508.txt

This is a measurement of the uncoated substrate glass, that should be from the same batch as all the other glass samples.