Index of /jenik/dirs/light/ies2/ge

Name	Last modified	Size	Description

Parent Directory		-
errors.log	2001-12-03 15:51	445	ies files with errors
fco.tab	2001-12-18 11:13	16K	Full Cut-Off fixtures
all.tab	2001-12-18 11:13	187K	all fixtures overview
example_ies/	2001-12-19 14:25	-	sample ies files
fco_fs.dir	2002-02-21 22:50	9.1K	making a FS directory
fco_fs/	2005-12-15 12:21	-	FCO&FS data directory
criterion/	2005-12-15 12:22	-
lum.png	2006-05-18 10:28	1.9K
small/	2007-01-23 00:54	-
large/	2007-01-23 00:54	-	361x361 images, rows
large_single/	2007-01-23 01:10	-	361x361 images
sli70.txt	2007-01-23 01:10	13K	sorted on max. at 70°
all_new.zip	2007-01-23 01:24	5.9M
all_5_70.htm	2007-01-23 21:09	11K	thumb. sort.m. at 70°
all_5.htm	2007-01-23 21:09	11K	illumin. thumbnails
htm/	2007-01-24 11:34	-
LED3kK/	2016-08-12 00:52	-

An overview of ground illuminance distribution as produced by Full CutOff luminaires as offered some years ago by General Electric. The file all_5.htm shows a photometric thumbnail overview for all of them, all_5_70.htm differs by being sorted on maximum cd/klm about 70 degrees. Clicking on any thumbnail opens a larger image.

Specific illuminances are coded logarithmically by colours. Each colour comprises one decadic order, shades within the colour are 0.5 mag each (so five shade steps are 2.5 mag, what corresponds to ratio of 1:10).

illuminance scale

Values below the scale are illuminance / 1 lx. This is for (unrealistic) “unit” case that luminaires would have lamps producing 1 klm only, would be point-like and just 1 m over the terrain. Amore realistic case would be lamps producing 10 klm each and being 10 m over the terrain: then the illuminances would be just 10× less.

The colour overview has been created using a Jan 2007 of ies2tab. The scripts ies?png.sh employed for image creation are within ../bin_exe directory.