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Posted: Mon May 05, 2008 3:42 am Post subject: looking for the incandescent bulb |
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Hi, All
I am looking for the incandescent bulb with the spectral distribution
as much closer as possible to that of standard CIE illuminant A (CCT
is 2856K). Anyone has the recommendation on this kind of bulb. The
screw-in bulb is preferred. Also I am also looking for the bulb
simulating early morning sunrise and late afternoon sunset
(approximate 2300k). Any help is appreciated. |
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Steve Hehr Guest
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Posted: Wed May 07, 2008 7:31 am Post subject: Re: looking for the incandescent bulb |
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On Sun, 4 May 2008 20:42:13 -0700 (PDT), cyrusli82@gmail.com wrote:
| Quote: |
Hi, All
I am looking for the incandescent bulb with the spectral distribution
as much closer as possible to that of standard CIE illuminant A (CCT
is 2856K). Anyone has the recommendation on this kind of bulb. The
screw-in bulb is preferred. Also I am also looking for the bulb
simulating early morning sunrise and late afternoon sunset
(approximate 2300k). Any help is appreciated.
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I believe the bulb used in a Technidyne BNL-3 type opacimeter -- used
for measuring the opacity of paper -- is an Illuminant A, 2854°K
incandescent bulb, as that is the specification for the opacity
measurement. I don't know what type base the bulb has. As the bulb
is for an instrument, it will be a relatively small, low-voltage type,
probably under 10 volts I would guess.
You can find contact information at their web site:
http://www.technidyne.com/
--
Steve Hehr
To send me email, replace the "OUT" in my address with its opposite. |
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