Hi, place a linear polarizer below the tray and one above it, rotating
the top one until you get the desired view.
V. Nagarajan
JANSi
On 8/16/2020 8:26 AM, Diana Tomchick wrote:
It's my understanding that you have two polarizers on your
polarizer-microscope--one in the base, and the one that attaches to
the magnifying lens. When you rotate the one on the lens so that it is
90 degrees to the one in the base, no (or very little) light should
pass through to your eyes, unless there is a crystal that plane
polarizes the light at an angle that differs from the two on the
microscope.
What you have is just one polarizing lens. Not sure how that would
work, even if it is a circular polarizer.
Diana
**************************************************
Diana R. Tomchick
Professor
Departments of Biophysics and Biochemistry
UT Southwestern Medical Center
5323 Harry Hines Blvd.
Rm. ND10.214A
Dallas, TX 75390-8816
diana.tomch...@utsouthwestern.edu
(214) 645-6383 (phone)
(214) 645-6353 (fax)
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*From:* CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> on behalf of
Matthias Zeug <matthias.z...@gmx.de>
*Sent:* Sunday, August 16, 2020 9:05 AM
*To:* CCP4BB@JISCMAIL.AC.UK <CCP4BB@JISCMAIL.AC.UK>
*Subject:* [ccp4bb] polarizer
EXTERNAL MAIL
Hi all,
The polarizer-microscope in our facility is not working properly, and
I have to check my plates using a standard stereo-microscope. As a
workaround, I thought about buying one at Amazon, placing it on top of
the plates and rotating it to still test for birefringence.
The product is linked below. Does anyone have some experience with
this kind of "homemade" system? And also (this might be a stupid
question), does the product even work? As far as I know, the
polarizers in the microscopes are linear polarizers, whereas the
product linked below is a circular polarizer. I would also be happy
for product recommendations (optimally available at the German Amazon).
Cheers
Matthias
https://www.amazon.de/dp/B00XNMXYBY/ref=cm_sw_r_cp_apa_i_5YsoFbFQXTBP9
___________________
Buchmann Institute of Molecular Life Sciences
Goethe University Frankfurt
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