A catadioptric Yolo design using 2 tilted correcting lenses

I’ve put the Chief correcting lenses in most telescope designs I could think of including the Yolo giving it the name “Jolo”.  One of the difficulties of making a Yolo is the toroidal secondary mirror.  Two correcting lenses can eliminate the need for a toroid or needing to warp the secondary.  Surprisingly the two correcting lenses are tilted in the same direction unlike the Chief.   This is because only astigmatism is being corrected.  I still havent made one yet even though the spot diagrams are very good.  Below is a design you can build or scale up.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s