20-Inch-Telescope-Mirror: Difference between revisions
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== My Deductions == | == My Deductions == | ||
The central hole appears to be about 4 inches in diameter. | The central hole appears to be about 4 inches in diameter. Boller and Chivens was a telescope company that was bought by Perkin Elmer is my conclusion and they made optical telescopes and some spectrographic instruments. The mirror figure is either suitable for a human viewing telescope or a schmidt camera. The curvature implies human use. | ||
Revision as of 14:06, 1 March 2007
Perkin Elmer/Boller & Chivens 20" F8 primary telescope mirror
Per John Urciolo
Regarding the mirror... It came from a former NASA facility that excessed it along with the Unertyl mount. There are no specific numbers on any part of the mirror or its heavy circular housing. I was able to determine that it was made by Perkin Elmer/Boller & Chivens from the original government sheets. No additional information such as a model or serial number was provided by NASA. The Unertyl mount is intended to allow X-Y positioning of the mirror while holding it securely on an optical bench (for optical calibration??). I am assuming this mirror to be parabolic due to the fact it was intended to the best of my knowledge to ultimately be used in a telescope.
My Deductions
The central hole appears to be about 4 inches in diameter. Boller and Chivens was a telescope company that was bought by Perkin Elmer is my conclusion and they made optical telescopes and some spectrographic instruments. The mirror figure is either suitable for a human viewing telescope or a schmidt camera. The curvature implies human use.