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Tele Vue Blog: Clyde Bone and His Two Unusual Mersenne Telescopes!

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#1 Stars4jon

Stars4jon

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Posted 12 July 2019 - 07:44 AM

Clyde M. Bone, Jr. (1928 − 2012) of San Angelo, TX was quite a character. A regular at the Texas Star Party,

he was glad to show you the night sky through one of the Mersenne reflecting telescopes he designed and

built himself. (At first glance, they look like giant Dobsonians ─ but they are not.) The first built was a 20-inch,

which apparently wasn’t big enough! So he followed that up with a massive 30-inch.

 

Clyde’s version of the Mersenne reflecting telescope differs from the classic 17 century design because the

light path allowed Clyde to scan the skies comfortably from the ground. There would be no “shaky” ladders

like those found astride the other big scopes in the field. Also, Clyde’s Mersenne scopes didn’t output light

directly to an eyepiece. No, the light would exit the side of the scope and enter a Tele Vue refractor. In this way,

the Tele Vue scope was imbued with the light gathering aperture of the big 20” and 30” mirrors.

 

Also, Saturn has just passed opposition. Did you observe or image Saturn with Tele Vue gear? We’ll “like” your

social media post on that if you tag it: #televue #Saturn

 

 

Clyde Bone and His Two Unusual Mersenne Telescopes!

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#2 Dick Jacobson

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Posted 14 July 2019 - 07:35 AM

I've achieved similar results with a different method by building "periscopes" for my 20 and 29 inch Newtonians. These bring the eyepiece down to feet-on-the-ground level with a light path outside and parallel to the main tube.




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