**Files to submit for a laminate with an embedded coating.**

Written by Christian Kohler/LBNL, May 8^th^ 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 8^th^ 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:
<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.