THORLABS EDU-OMC1, User Manual

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Optical Microscopy Course Kit Chapter 5: Setup and Adjustment
Rev C, October 1, 2020 Page 37
9.
Place the assemblies into the benchtop organizer for storage.
5.2.14 Fluorescence Filter Assembly
1. Remove the retaining ring from a SM1L05 lens tube.
2. Insert the FELH0550 with the arrow towards the inner lip of the lens tube and fix it into position with
the retaining ring.
3. Attach the corresponding adhesive label with the arrow towards the external threading of the lens tube
and put on an SM1EC2B end cap on one side of the tube and an SM1CP1 end cap on the other.
Putting end caps on both sides protects the delicate interference filter!
5.2.15 Diffuser Assembly
1. Attach a TR3 (TR75/M) post to a SM1RC (SM1RC/M) slip ring.
2. Use the scotch tape to cover the entire aperture of the slip ring (three layers at approximately 120° angles
works well).
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3. Trim away the excess tape.
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There are also inexpensive, purchasable ground-glass (not to mention higher-performance engineered) diffusers available
from Thorlabs; however, learning to prototype with simple materials is a valuable skill, and one we wanted to emphasize for
students in the class.