[Radiance-general] IESNA Files & LumBuild

[Brian Karr]

For some reason Im not seeing the light. Here's the steps Im following:

1. In the IES file I change the units to feet and set the circular aperture:
Filename: 230V_6500K_25_E27_3_IESNA95.IES 
Header info:

IESNA:LM-63-1995
[TEST] 3#
[TESTLAB] topstar
[TESTDATE] 2010-07-08
[ISSUEDATE] 2010-07-16 09:48:18
[NEARFIELD] 
[LAMPPOSITION] 0,0
[OTHER] EVERFINE GO-SPEC316_V1 SYSTEM
[MANUFAC] Topstar
[LUMINAIRE] LED outdoor E27
[LAMP] 6500K 25°„3#
TILT=NONE
1 1246 1.000 181 13 1 1 -0.500 0.000 0.000
1.000 1 19.2


2. Run IES2RAD:
ies2rad -df -t default -m .85 230V_6500K_25_E27_3_IESNA95.IES

Note: In the brightdata description, I expected the value 46.5971 to be
0.85? I tried it both ways without luck.

I tried changing the ring orientation around (default below) to make sure Im
not missing the light, but I haven't seen it. 

Think maybe Ive been staring at this too long! Appreciate any ideas?

# ies2rad -df -t default -m .85
# Dimensions in feet
#<IESNA:LM-63-1995
#<[TEST] 3#
#<[TESTLAB] topstar
#<[TESTDATE] 2010-07-08
#<[ISSUEDATE] 2010-07-16 09:48:18
#<[NEARFIELD]
#<[LAMPPOSITION] 0,0
#<[OTHER] EVERFINE GO-SPEC316_V1 SYSTEM
#<[MANUFAC] Topstar
#<[LUMINAIRE] LED outdoor E27
#<[LAMP] 6500K 25°„3#
# 19.2 watt luminaire, lamp*ballast factor = 1

void brightdata 230V_6500K_25_E27_3_IESNA95_dist
5 flatcorr 230V_6500K_25_E27_3_IESNA95.dat source.cal src_phi src_theta 
0
1 46.5971

230V_6500K_25_E27_3_IESNA95_dist light 230V_6500K_25_E27_3_IESNA95_light
0
0
3 1 1 1

230V_6500K_25_E27_3_IESNA95_light ring 230V_6500K_25_E27_3_IESNA95.d
0
0
8
0 0 -0.00082021
0 0 -1
0 0.25

Thanks!
Brian


-----Original Message-----
From: Shakespeare, Robert A. [mailto:shakespe at indiana.edu] 
Sent: Tuesday, June 03, 2014 10:26 AM
To: Radiance general discussion
Subject: Re: [Radiance-general] IESNA Files & LumBuild

Brian,
Typically the manufacturer or lab will provide the luminous aperture specs.
0 0 0 represent x y z dimensions
To create a circular 6" aperture  use   -.5 0 0 (note the minus sign)
A 6" square is    .5 .5 0

The "1" before the aperture dimensions indicates units in feet, "2" for
meters.

ies2rad includes the -dx flag (x=f feet, m meters, i inches etc) to convert
ies aperture specifications into the units of your model.

Rob

On 6/2/14 8:33 PM, "Brian Karr" <brianakarr at yahoo.com> wrote:

>Thank you Rob. From your link I realized for the US site (for GE) I was 
>on the consumer site that doesn't have all the available lamps and .ies 
>files.
>
>US commercial site for reference:
>http://genet.gelighting.com/LightProducts/Dispatcher?REQUEST=LED_PRODUC
>TLI
>ST
>&path=LEDs_Replacement%20Lamps_Directional_PAR_PAR38
>
>One question I have is should the luminous opening be 0 0 0, a point 
>source when input into ies2rad?
>
>IESNA:LM-63-2002
>[TEST] 1180521-0-A001
>[BALLAST] SELF
>[LAMP] 17P38S830/15
>[_ORIENTATION] VBU
>[_VOLTAGE] 120
>[_CURRENT] 0.1347
>[_WATTS] 16.11
>[ISSUEDATE] 2011-01-13T15:13:14
>[TESTLAB] GE
>[_TEMPERATURE] 77
>[MANUFAC] GE
>[_CCX,CCY] 0.4423, 0.4089
>[_ENERGY_STAR_DELTA_UV] 0.0028
>[_LM79_DELTA_UV] 0.00285
>TILT=NONE
>1 -1 1 181 17 1 1 0 0 0
>1 1 16.11
>
>Thank you,
>Brian
>
>-----Original Message-----
>From: "Shakespeare, Robert A." <shakespe at indiana.edu>
>To: Radiance general discussion <radiance-general at radiance-online.org>
>Subject: Re: [Radiance-general] IESNA Files & LumBuild
>Message-ID: <CFA9433C.24B50%shakespe at indiana.edu>
>Content-Type: text/plain; charset="windows-1252"
>
>You should find .ies files to download at these links:
>
>http://www.gelighting.com/LightingWeb/aus/products/technologies/led/led
>-pa
>r3
>8/overview/<http://genet.gelighting.com/LightProducts/Dispatcher?REQUES
>T=I
>ES
>RESULTPAGE&Category=Lamps_Sealed%20Beam_PAR&SearchType=CatgSearch>
>
>http://www.usa.lighting.philips.com/connect/tools_literature/photometri
>c_d
>at
>a_1_a.wpd
>
>http://www.tcpi.com/spec-sheets/
>
>http://www.lsgc.com/interior_led_lighting/definity-lamps/par38/
>
>Lots more out there? If you find Toshiba, they are no longer manufactured.
>
>Rob
>
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