SCHOTT SUPREMAX ® 33 is a multifunctional rolled borosilicate glass with unlimited applications. Share this post. With this top quality mirror blank and the appropriate abrasives, polish, and pitch you will be able to make a telescope mirror to your own specifications that can potentially out-perform many mass produced telescopes. For plano/concave and plano/convex substrates, center thickness (CT) depends on the radius of curvature. Orders are confirmed on receipt of an advance of 15-25% of price list. Convex Spherical Mirror Blanks Mirror Blanks are available in BK7, UVFS, FS, Supremax 33, Zerodur, Si, Cu, Mo, and CaF 2 substrates. From large primary mirror blanks, Cassegrain designs, and reflective secondary components, ULC can assist you with all of your optical designs. The advantage to this glass is its low coefficient of thermal … This is a discount of $451.00 lower than from United lens where I bought it. It is brand new and I must sell. Packing is included on the price, delivery is at the customerâs expense. We work with a variety glasses including fused silica, fused quartz, optical glass, low expansion materials, filter glass and more. customer provided blanks, up to 32 inches (810mm) in diameter. Price excluded Vat, delivery cost and packing. Advanced Glass Industries is a precision manufacturer supplying the industry with precision machined and molded glass blanks for the optics industry and beyond. Nigel. Looking at mirror blanks and cant seem to find any uk suppliers beyond Galvoptics.will be looking at 16-20" sizes likely pyrex/borosilicate. We have a variety of low thermal expansion borosilicate glass blanks for making a high quality telescope mirror to your own specifications. Supremax ® BLANKS Fine annealed Supremax blanks are borosilicate glass disks, extracted from a plate of Schott Supremax® with a low coefficient of thermal expansion (3.25x10-6/°C) while the standard glass (Soda Lime) has got 8.5x10-6/°C. Developed in conjunction with Ext-Joom.com. ULC manufactures test plates/mirror blanks in our Southbridge, MA facility with Schott Borofloat® 33/ Supremax® 33. We are able to do any kind of working on our production or. Use it now or buy it as an investment! Standard tolerance on the diameter are ±1.0mm, on the thickness are ±1.0 mm . Please request quote for curve service on your blank. SUPREMAX 33 is a borosilicate Pyrex equivalent, and is an excellent alternative for telescope mirror blanks. All funds in USD. We only use precision annealed Schott Supremax-33 in the thicknesses noted on the pricelist page. For sizes not listed, please contact us. Thinner blanks are polished on the backside that is said to improve their strength and also to provide less friction against the mirror … ... Schott purchased Corning's glass line and now makes "Supremax" and "Borofloat" to the same expansion coefficient ( and probably the same formula ) as "Pyrex". : 3.25 x 10 -6 K -1 ) High thermal resistance (long term up … Thicker quartz is available in all sizes with prorated pricing per thickness. 8" at 20mm edge thickness add $290.00. Add amount listed below to Supremax mirror pricing for a quartz Zambuto mirror. Then from there, you can make your own cement tool during the workshop for under $10.00. Our blanks have the following standard characteristics: Precision annealed material (6 Mu or less guaranteed) Edges diamond ground with a 220 grit finish Standard tolerance on the diameter are ±2mm, on the thickness are ±1.0 mm . Mirror blank thickness and pricing by size is below. plus S&H. Standard tolerance on focal length are ± 1.5%. Testing throughout is done by non-contacting interferometry whenever possible and are tested at full aperture whenever possible. We are able to do any kind of working on our, production or customer provided blanks, up to 32, inches (810mm) in diameter, and up to 8" (200mm). Site & all contents © 2014 Rocky Mountain Instrument Co. Mirror blanks in stock NOTE: These are mirror blanks, not finished mirrors, and are on hand and ready for grinding. We have supplied elliptical diagonal mirrors to telescope manufactures for more than 20 years. newport glass works, ltd.----- telescope blanks --&-- related products --copyright newport glass works,ltd. With this top quality mirror blank and the appropriate abrasives, polish, and pitch you will be able to make a telescope mirror to your own specifications that can potentially out-perform many mass produced telescopes.
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