From: "Scott E. Brodie, MD, PhD" <brodis01@doc.mssm.edu>
To: Color and Vision Network <cvnet@lawton.ewind.com>
Subject: Re: CVNet - query; sources for easel lamps
The MacBeth Easel Lamp went out of production in the late 1980's. (No
wonder -- they were charging about $500 for this awkward, heavy
cast-iron table lamp.) The key "magic" element, the blue glass filter,
was available separately from MacBeth, but they have sold off the last
of these, and they are no longer available either.
MacBeth (as well as Munsell Color) is now a part of "GretagMacBeth" (see
http://www.gretagmacbeth.com/index.html). They sell a large variety of
carefully calibrated light sources, most intended for industrial
applications.
Perhaps their handiest product is the "Sol Source" Daylight Desk Lamp, a
spring-counterbalanced articulated arm desk lamp, which provides a
choice of three calibrated color-temparatures by means of a "filtered
tungsten-halogen source." Over the phone, their sales rep confirmed that
this is an approved light source for color vision testing, as for the FM
100-Hue test. The price is $395; delivery takes is quoted as about 8
weeks. I have no personal experience with this item.
You might also try the "True Daylight Illuminator" available from Wilson
Ophthalmic Corporation (priced at $286.12 in their 1999 catalog). The
catalogue entry reads "... provides a light source rating of C.R.I 90
and 6200 deg K, UL approved." This appears from the photo to be a small
"Easel Lamp", with a shielded bulb housing which runs across the top; it
holds a book of color-test plates nicely. Again, I have no personal
experience with this item.
Hope this helps.
Scott.
Scott E. Brodie, MD, PhD
Mount Sinai School of Medicine
New York
Color and Vision Network wrote:
> From: "Neil Parry" <nparry@fs1.cmht.nwest.nhs.uk>
> Organization: University of Manchester
> To: Hoover Chan <hchan@kirkham.ewind.com>
> Subject: CVNET - Query on Easel Lamps
>
> Does anybody know the source of daylight illuminators
> like the Macbeth easel lamp? I understand these are no longer
> manufactured, but perhaps someone out there knows of a secret
> supply, or a suitable alternative.
>
> Thanks,
>
> Neil Parry
>
> Replies to Neil.Parry@man.ac.uk
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