ies2tab programme: photometric properties of luminaires 

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[DIR] Parent Directory                             -   
[DIR] online/                 29-Dec-2009 16:12    -   
[DIR] EasyLight-SaveTheSky/   02-Jun-2008 22:57    -   
[DIR] scripts_bat/            23-Nov-2007 17:37    -   scripts and batches  
[DIR] pascal_sources/         23-Nov-2007 17:37    -   source pascal codes  
[DIR] bin_exe/                23-Nov-2007 17:37    -   binaries, executables
[TXT] ies2tab.pas             27-Oct-2007 16:21   67K  source code (Pascal) 
[   ] ies2tab.hlp             24-Oct-2007 13:03  3.0K  ies2tab -help output 
[TXT] changelog.txt           23-Oct-2007 12:39  1.3K  bugs and changes    
[DIR] thorn/                  26-Feb-2007 18:33    -   
[DIR] siteco/                 07-Feb-2007 11:57    -   
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[DIR] disano/                 29-Jan-2007 18:08    -   
[DIR] acuity_brands_lighting/ 29-Jan-2007 18:07    -   
[DIR] ge/                     23-Jan-2007 21:09    -   General Electric     
[DIR] aal/                    23-Jan-2007 21:08    -   Archit. Area Lighting
[DIR] ruud/                   23-Jan-2007 21:08    -   Ruud Lighting prods. 
[DIR] cooper-lighting/        23-Jan-2007 21:00    -   Cooper Lighting      
[DIR] philips/                09-Jan-2007 01:48    -   
[DIR] chris_baddiley/         09-Jan-2007 01:31    -   
[IMG] lum.png                 18-May-2006 10:28  1.9K  
[DIR] d_keith/                02-May-2005 23:48    -   David Keith examples 
[TXT] iesdiego.pas            16-Mar-2004 18:12  7.6K  
[DIR] usaltg/                 21-Feb-2002 22:47    -   U.S. Archit. Lighti. 
[DIR] moldcast/               21-Feb-2002 22:47    -   Moldcast products    
[DIR] lithonia/               06-Dec-2001 13:48    -   Lithonia Lighting
Tools handling photometric files in the *.ies and Eulumdat formats (giving luminous intensities for luminaires), offering their mutual conversion, human-readable outputs and the relevant light-pollution quantities.

The main product is the ies2tab programme – there is a source (for the whole package of my programmes and the needed units, see http://astro.sci.muni.cz/pub/hollan/programmes) ies2tab.pas and the binaries for linuxPCs (ies2tab) and DOS-likePCs (ies2tab.exe). Since 2007, it can be used online as well, for single photometric files whose URL is given

A couple of unix scripts, easy to adapt to DOS run the programme to get an overview of all *.ies files in a directory.

Some results for a couple of different producers and data for the FCO&FS luminaires are included, if such have been found among the available *.ies. The tables (mostly just within zip files) give the “cd/klm'' values for the luminaires. I suppose to write a tab2ies programme as well, for backward conversion to ies format.

I will gladly add another producer's data (summaries, tables or even the original ies files) if I come across them or if you will send them (or their URL to me).

The summary data contain some info on an illumination of a rather arbitrary rectangle. This is no more than a sort of light distribution information, not considering if the luminaire is meant to illuminate such an area. Illuminance values computed for a single luminaire (instead for a system of them) mean little for real outdoor scenes (some luminaires are even no outdoor ones).

The accuracy is much below the last given cipher, due to the discrete form of input data.

Jenik Hollan, hollan on ped. muni. cz

PS. for some data, as those from the General Electric, commas within the *.ies have to be changed to blanks at first for the ies2tab to work, ies2bla does it for whole directory, some scripts ensure that using a temporary directory.

PPS. for the changes and errata, read changelog.txt