Making Telescope Mirror Glass Blank

You will never hit them while grinding even extremely fast mirrors. Here are three finished 10 inch diameter mirror blanks ready to be ground and polished into fine telescope mirrors by the students at the spac mirror lab. Designing the mirror blank.

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Both are excellent low thermal expansion borosilicate glass.

Making telescope mirror glass blank. How to make the hexagonal inserts was a vexing problem. All of the mirror blanks we sell are individually tested to be free of internal strain. Perfect for making a high quality telescope mirror to your own specifications. The bubbles will always be at least one thickness of the original glass inside the blank.

Making the hexagonal inserts. The second from the bottom is the one above. Additionally we provide high end custom solutions including the application of durable thin film mirror and anti reflective coatings. Making the outer wall of the.

We have a wide variety of blanks in pyrex and supremax 33. Purchase telescope mirror blanks here. Order with the payment buttons next to the desired blank a. It is a fine looking near full thickness 10 inch diameter blank that i intend to grind and polish into a 1st class telescope mirror.

United lens company supports both the professional and amateur astronomical community. Not a problem in these fused blanks. We ve sold classic test plate and mirror blanks for nearly as long as ulc has been in business. Simply put plate glass blanks take on and maintain every bit as accurate a parabola as pyrex blanks.

Even though some builders prefer to buy commercial mirrors and fit them in a diy structure i believe that making a telescope mirror is probably the most rewarding part of the whole built. Here is a stack of my home made 8 and 10 inch mirror blanks. Starting from a rough glass blank you can obtain an almost perfect parabola with surface errors in the range of 20 to 60 nm. Casting a large light weight telescope mirror from recycled glass step 1.

If one of our standard telescope mirror blanks isn t exactly what you re looking for advanced glass can custom make a telescope mirror blank to your specifications. Agi can diamond machine id holes into your mirror blank. Most of my blanks go to students at the lab. As sky and telescope magazine puts it the idea that pyrex telescope mirrors are better than those made from plate glass is demonstrably incorrect and may have caused many a telescope owner unnecessary effort expense or angst.

Agi can manufacture mirror blanks up to 40 in diameter. I played around with some layout ideas in google sketchup. Telescope mirror blanks for amateur telescope makers. We provide 6 inch 8 inch 10 inch and 12 inch telescope mirror blanks in standard 3 4 thickness and larger mirror blanks up to 20 inches in 1 thickness.