Lurie-Houghton Telescope Corrector Cell
Here is the almost completed cell that will hold the corrector lens. It has
all of its parts: the frame (or main part of the cell), the spacer (that
provides enough depth in the cell to contain the lenses), the clamp ring that
holds the two lenses in the frame, and the mounting ring that holds the entire
corrector cell assembly in the telescope
tube. The mounting ring is used to provide easy insertion and removal of
the corrector assembly from the tube by allowing the outside diameter of the cell
to be smaller than the tube. The cell attaches to the mounting ring with three
screws that can be used to collimate the corrector assembly. A
3D rendering of the
corrector assembly without the mounting ring can be seen in my
design article on the telescope.
Cullen Bennett of Arizona machined this for me in his home based machine shop.
This photo was taken 25 March 2000 with an Olympus D-600L digital camera.