LED Flashlight Substage for Sidelight

Here you can discuss different microscopic techniques and illumination methods, such as Brightfield, Darkfield, Phase Contrast, DIC, Oblique illumination, etc.
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DonSchaeffer
Posts: 3349
Joined: Sun Mar 22, 2020 10:06 am
Location: Winnipeg, Manitoba, Canada

LED Flashlight Substage for Sidelight

#1 Post by DonSchaeffer » Sat Jul 18, 2020 3:45 pm

I was inspired by all the experimentation with LED for sidelight and darkfield illumination.
For sidelight and to replace the stop filters I started using a small LED flashlight that is powered by USB. When it is appropriate the flashlight replaces the main light source. I can also dim the main light source using an adjustable neutral density filter.
setup.jpg
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density filter. I found the first results very promising.

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