Author Topic: Giant binocular  (Read 24196 times)

34_40

Re: Giant binocular
« Reply #135 on: August 22, 2022, 07:11:14 AM »
quite the collection of linkage.  What are the functions?  I'm assuming some sort of zoom perhaps?
Clausing 108, Clausing 8520, Atlas Horizontal, Lincoln stick and mig welders

savarin

Re: Giant binocular
« Reply #136 on: August 22, 2022, 08:36:51 AM »
A brief description of what has to happen with astronomical telescopes.
The parabolic mirror reflects the light travelling down the scope back up to a secondary flat mirror that reflects that light out the side usually into an eyepiece where it is focussed.
All the mirrors have adjusters, the primary mirror has three adjusting screws that tilt the mirror to make the light cone hit the secondary at the right spot to be reflected out into the eyepiece.
These adjusters are usually at the bottom of the scope underneath the mirror cell.
Once adjusted correctly they usually only need a tiny tweak now and again.
This is called collimating the mirror.
In a binocular each tube then has to be adjusted to bring both the images into call it co-collimation so your eyes can successfully merge the two images into one.
 If this co-collimation is a bit out your brain takes over and merges them for you BUT in the process giving you the most thunderous headache ever.
All these rods will allow me to tweak the co-collimation whilst looking through the eyepieces to ensure the images do allign perfectly. (I hope)
The first one as pictured is actually to move the complete mirror cell sideways as another aid in merging the images.
One mirror will move at 90' to the other mirror.
I hope this makes some sort of sense.

34_40

Re: Giant binocular
« Reply #137 on: August 22, 2022, 07:42:49 PM »
makes a lot of sense now! never knew there was so many things going on in there. And I can imagine the headache.. every couple years I get new eyeglasses so I've experienced that pain.  Thanks for the info.
Clausing 108, Clausing 8520, Atlas Horizontal, Lincoln stick and mig welders