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WANTED: Highest Optical Quality Light Table for 2DG Autoradiography

James Olds olds at helix.nih.gov
Tue May 12 07:31:25 EST 1992


In article <l0ucg3INNlhg at neuro.usc.edu> merlin at neuro.usc.edu (merlin) writes:
>Hello,
>
>We currently have a Chroma Pro slide duplicating light table with two
>voltage regulators in series to provide the long term stability needed
>for digitizing images from 2DG autoradiography films.  This table was
>provided as part of the DREXEL/DUMAS "BRAIN" image analysis system.
>
>Basically we have two problems with our existing table:
>
>  o  The film is not evenly illuminated by the underlaying tungsten
>     halogen projector lamp and fresnel lense combination
>
>  o  The Schneider enlarger lense is not optically coated and gives
>     far too many internal refelctions.
>
>Would anyone with experience identifying light tables with the flatest
>possible illumination and good quality camera lenses recommend a table 
>which we could acquire from a commercial source?
>
>Thanks, AJ
>
>------------------------------------------------------------------------------
>Alexander-James Annala
>Principal Investigator
>Neuroscience Image Analysis Network
>HEDCO Neuroscience Building, Fifth Floor
>University of Southern California
>University Park
>Los Angeles, CA 90089-2520
>------------------------------------------------------------------------------

 Try the Northern Light Illuminator made by Imaging Research Inc.
 St. Catherines ONT. We use it on both Mac- and IBM-based Imaging
 systems here at the NIH. It is excellent. E-mail me directly for
 their phone number.

--
****************************************************************************
* James L. Olds Ph.D.                 Neural Systems Section               *
* domain: olds at helix.nih.gov           NINDS, NIH, Bethesda, MD. 20892 USA *
****************************************************************************



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