Lurie-Houghton Telescope
Secondary Holder Assembly with Mirror
Here's the secondary holder assembly with the mirror glued to it. The secondary
mirror is glued to a 45 degree angle
cut on the black plastic part. This mirror is used to direct the focused
light from the primary mirror sideways through a hole in the telescope tube
allowing me to view the image. The metal parts of this assembly allows me to
slide, rotate and adjust the angle of the mirror along and around the optical
axis. These adjustments are needed so the reflected light is perpendicular to the
main optical axis of the telescope and centered properly in the telescope
eyepiece. Notice the blackening on the edge of the mirror. I'm trying different
inks to determine which to use to darken the edge. I'm going to use the ink that
is on the upper left portion, because it is flatter and reflects less light.
This photo was taken 7 May 2000 with an Olympus D-600L
digital camera.
Lurie-Houghton Telescope Home Page
Rick Scott's Natural Images Home Page
Updated: 7 May 2000
