Making a Microscope

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Forum topic by Eddie_T posted 10-13-2013 08:49 PM 805 views 0 times favorited 2 replies Add to Favorites Watch
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208 posts in 2312 days

10-13-2013 08:49 PM

I have an antique replica microscope that has a missing lens. If anyone has FWW Issue 13, Nov 1978 it has an article on building a wooden microscope titled Making a Microscope. I am interested in info on how the lenses were selected hoping to find a way to determine what lens to get for my replica.

2 replies so far

View ErikPotter's profile


1 post in 2035 days

#1 posted 10-18-2013 12:13 AM

The most relevant lens selection related comment they seem to make in the article is “Let me run through some typical steps in making the little microscope. First, the lenses are selected, measured and set aside, and the best distance between them noted on your plan.”

Not surprisingly the article is focused on the construction of the wooden body and legs. Other mentions of lenses are focused on how to mount them.

What little I know about lenses tells me that the key component will be the shape, and secondarily the refraction index of the material. Those two things together will determine the focal length of the lens. I’m thinking that if you knew the diameter of the lens that you can fit in your replica and you knew how far away from the lens you needed to focus (in both directions, towards your eyes and towards the subject) then a lens maker could deliver the rest. The key problem may be that you are trying to replace a single lens from within a matched set of lenses…but the space between lens mounts in your replica and its adjustment range may be enough detail to fill in the missing piece though.

You may also find value in the Wikipedia article on lenses

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208 posts in 2312 days

#2 posted 10-18-2013 02:22 AM

Thanks for the response and the link.

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