results for this questionFeedbackcleaning/aluminizing large telescope mirrors at ING

To get rid of the contamination introduced by the fire hose,the mirror is then thoroughly rinsed with de-ionized water obtained from the de-ionization plant in the JKT (Jacobus Kapteyn Telescope).The next step requires a solution of Caustic Soda (NaOH) made by adding 10-15% by volume of NaOH pellets to de-ionized water and stirring until fully dissolved. results for this questionWhat's the best way to coat a telescope mirror?What's the best way to coat a telescope mirror?This is about the same time that John Strong developed the method of depositing aluminum on glass in a vacuum chamber.Steel doesnt tarnish like silver and Strongs process quickly became the best choice for a durable telescope mirror coating.Silvering fell to the side.Spray Silvering Telescope Mirrors - A Step-by-step instructions results for this questionWhat's the best way to remove aluminum from a telescope?What's the best way to remove aluminum from a telescope?The first step is removing the old aluminum coating first.Ferric chloride is a good choice because it dissolves aluminum while leaving the glass alone.It does an excellent job but may take an overnight soak for it to completely remove the old coating.Spray Silvering Telescope Mirrors - A Step-by-step instructions

results for this questionWhich is the best coating for a telescope?Which is the best coating for a telescope?Steel doesnt tarnish like silver and Strongs process quickly became the best choice for a durable telescope mirror coating.Silvering fell to the side.Several forces have come together recently to make spray silver coatings an attractive option for telescope mirrors again,especially those 12-inches and larger in diameter:Spray Silvering Telescope Mirrors - A Step-by-step instructions(PDF) Experiments using First Contact polymer as a final

Cleaning mirrors for coating is a very e xacting process and for larger mirror s it ca n be ph ysically demanding.The final step of cleaning and drying the substrate is particularl y problematic.(PDF) Stars in a cluster Mt John University Observatory The observations at different sections of each 24-hour period derive from different observatories around the world.The rising sun (always) and cloud (sometimes) interrupts observing at any particular observatory.The Mt John observations are in the 9 to 16 hour region.Adapted from Handler et al.,1996.

(PDF) The UKIRT Wide Field Camera Derek Ives -

In this case the speed with large-scale infrared imaging.2MASS has been a ground break- which a survey covers a given area of sky to a given depth is,to ing project,but its relatively bright limiting magnitude (K = first order,proportional to the product of aperture area and field 14.3) does not match the typical spectroscopic limits on 8 m 18 PUBLICATIONS OF THE EVAPORATED ALUMINUMglass.Because of this property,the most efficient way to clean the surface of an aluminized mirror from adherent dust and other contamination is by washing with soap and water.Steel films do not require frequent burnishing,al- though they may be burnished after a years use,if necessary.CASCA Canadian Astronomical Society SociétéThe Gemini Telescope Project is a proposal to con- struct twin 8-metre telescopes in astronomical observato- ries at prime sites in Hawaii and Chile,in collaboration with the U.S.and U.K.The 8-metre telescopes would employ new technologies that will dramatically enhance ground-based astronomical research and will be the focus

CONTENTS

Aperture Research Telescope System (SMARTS) Consortium,which operates the 0.9-m,1.0-m,1.3-m,and 1.5-m telescopes on Cerro Tololo,with time shares that vary between 1520% from telescope to telescope.CTIO serves as host for more than 10 other telescopes,including the University of Michi-Cleaning/aluminizing large telescope mirrors at ING revised 14/5/2001Removing the old coat The first stage of cleaning is getting rid of all solid matter from the surface.The simplest way of removing the dust without touching the surface is to play the fire hose on to it,and to flood it until no solids remain.Cleaning/aluminizing large telescope mirrors at ING Was this helpful?People also askWhat's the best way to spray a telescope?What's the best way to spray a telescope?To get started,position the plastic tub under the jig and put on a pair of vinyl gloves.Place the mirror horizontally on the jig.Cover the mirror with white paper towels and then slowing pour on the ferric chloride.Spray Silvering Telescope Mirrors - A Step-by-step instructionsCompanies - Spectroscopy instruments - South Korea #Keywords optical coating,infrared long pass filter,infrared band pass filter,infrared anti-reflection,welding filter,band pass filter,fluorescence filter,beam splitter,edge filter,mirror,neutral density filter,infrared DLC coated windows,wafer level patterning filter,IR metalized windo

Contents Viewing Nights - Shoalhaven Astronomers

Dobsonian telescope starting with two discs of glass purchased from a glass company in western Sydney for about $100,which in 1999 was a considerable sum of money.Little did I realise that aluminizing the completed mirror a year later would cost dou-ble that figure.Having said that,First Light on the completed monster,described below,Customer's Gallery - Angel GildingCustomer's Gallery.Our Customer's Gallery shows some of the wonderful ways our customers have used our products.We think of it as a little free advertising for both of us.We would love to display your work.Use our Contact Us page to send us your photos,the title of each piece and a link to your website,if you have one,so that we can Estimated Reading Time 7 mins(PDF) Mirror facets for the VERITAS telescopesmicroscopic clean ing facet mounts allow precision adjustments to bring the focus of each to the same point on the primary focal plane of the telescope.Since the mirror their large mirror

First Light for 3.6 m Telescope

ing the last two months.As mentioned above,the mirror has been aluminized.Not a small job either,but it was so weil prepared thatalready the first aluminizing gave an ex­ cellent result.On these big jobs as weil as on hundredsof smaller ones,the work has been progressing steadily,al­ though not without minorsetbacks.On August 26,a light-Man of Partsglass from the telescope tube,clean it with solvents and lanolin,get it into what was then the world's largest vac- uum tank for the actual aluminizing,and then get the refurbished mirror safely back in the telesqope tube.It was an exhausting task,physically and emotionally,and that's where the peanuts came in.Bruce Rule had sacksN95- 14081 - COREing mirror was removed from this facility for replating with 381 _m (0.015 in.) of electroless nickel and polished to a specular finish for realuminizing.The space chamber served as the vacuum coating vessel for the realuminizing coating process.The mirror is the primary reflector for the solar simulation system and the aluminized reflective

Need help collimating my Cave Cassegrain.- Classic

Jul 12,2006·Need help collimating my Cave Cassegrain.- posted in Classic Telescopes So I just had my mirror sent out for re aluminizing and now Im trying to re collimator the scope.I spent most the day aligning and squaring my focuser.I spent a few hours star testing and I have bad coma in and out of focus.When I adjust the primary mirror it does not change.Nordic Optical TelescopeJun 22,2007·1 Jun 2009 cleaned STANCAM + FIES pickoff mirrors with alcohol.FIES mirror reflectivity before cleaning 76-82%.Shows wear,and a large drooling stain.6 July pumped cryostat during telescope aluminizing.14 Aug 2009 dewar was back flushed.See fault 1216.15 Sept 2009 changed both fans in the FIES CryoTiger compressor.See fault 1216.Observer's Guide for the 2.4m Hiltner TelescopeThe telescope mirror reflects light because it has an incredibly thin and delicate coating of aluminum,which can easily be damaged by ill-advised attempts to clean it.Re-aluminizing the mirror is very expensive (around $10,000,or six months of support for a grad student),time-consuming,and not without risk -- the entire back end of the

Orange County Telescopes,Binoculars,and More.

Telescopes,lenses,binoculars,microscopes,filters and much more sold here at great prices.Come to Orange County Telescope Where you are the center of the Universe!PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OFmirror and the supporting timbers.These rubber pads were also used as supports for both largè mirrors when they were placed on the base of the vacuum chamber.The 60-inch disk was taken out of its cell and transported to the 100-inch dome for the aluminizing.Cleaning of the upper surfaces^ sides,and under surfaces of both large mirrors for theRelated searches for cleaning aluminizing large telescopetelescope mirror aluminizingtelescope mirror coating serviceSome results are removed in response to a notice of local law requirement.For more information,please see here.12345Next

Society of Vacuum Coaters - History of Vacuum Coating

Electron cleaning of glass (Rice; Dimmick) 1945 Multilayer optical filters (Banning) 1945 1946 Film thickness measurement by X-ray adsorption (Friedman Birks) Goodfellow Corporation{UK} founded 1946 Balzers was founded Vacuum Electronic Equipment Company (VEECO) founded 1947 Aluminizing of 200 Palomar telescope mirror Spray Silvering Telescope Mirrors - A Step-by-step Sep 24,2019·To start cleaning,tilt the mirror back to horizontal on the jig and put on a new pair of vinyl gloves.The mirror is still wet from rinsing the ferric chloride off the mirror,so sprinkle on aStatus Report - dipastro.pd.astro.itBut as with the previous large pieces of the telescope,all went well.Indeed,when the heavy crate of M1 was parked inside the WHT and carefully opened,not only were we relieved at finding this superb mirror still in one piece,but the examination of the accelerometers placed around it

Subaru Telescope,Proceedings of SPIE 10.1117/12.319263

Aug 25,1998·The in-situ CO2 cleaning mechanism will be installed and tested on the telescope Soofl This mechanism will allow us to clean the primary mirror surface once every week or so (Y.Torii et al).Figure 8.Mirror cell trolley (below) and mirror handling equipment (above) assenihled on the base floor of' the Subaru Telescope enclosure 4.TELESCOPTICS - JSTORing the radial and tangential astigmatic surfaces coincident,and by variation of all All-inclusive telescope kits.Proper glass,clean abrasives in tin boxes,best rouge,real Cast Mirrors,Cells and Mountings; Silvering and Aluminizing.Send 6 cents for large illustrated catalog Astronomical Telescopes and EquipmentTELESCOPTICSALL INCLUSIVE TELESCOPE KITS.Proper glass,clean abrasives in tin boxes,including our new #6,best rouge,real pitch,an EYEPIECE,an ALUMINIZED diagonal mirror,and COMPLETE INSTRUCTIONS.4 ..$4.00 6 $6.00 Without eyepiece or diagonal,4 ..$3.00,6 ..$5.00 Free test of your mirror.Write for catalogue of supplies.

THE MESSENGER

ing the last two months.As mentioned above,the mirror has been aluminized.Not a small job either,but it was so weil prepared thatalready the first aluminizing gave an ex­ cellent result.On these big jobs as weil as on hundredsof smaller ones,the work has been progressing steadily,al­ though not without minorsetbacks.On August 26,a light-Telescopio San Pedro Mártir Observatory preliminaryrails allow the mirror to be transported to the Support Building for washing and aluminizing.Equipment at the Enclosure includes a ji b crane and a secondary mirror access platform.The 5-ton jib crane is located near the top of the Enc losure and is utili zed to lift heavy equipment on the observing floor or telescope maintenance .Testimonials - Angel GildingThe chemicals were very efficient and resulted in an excellent highly-reflective coating on the mirror surface.The chemicals were very easy to use and superior to those used in previous silver coating.Because the mirror is so large,I elected to coat the mirror in the four quadrants individually rather than coat the entire mirror at once.

The FREMONT PEAK OBSERVER

30-inch telescope gets new shine This spring Kevin Medlocks telescope mirror left Fremont Peak for the first time in many years to be bathed in vacuum and new aluminum.Our prized mirror shared a vacuum chamber with Chabot Space Science Centers new 36-inch telescope mirror.Aluminizing service was graciously provided by Lick Observatory Tradução Romeno do Met - Babylon-softwareTradução Romeno do met.Tradução Romeno do met online ou simplesmente abaixe o nosso dicionário de definições e traduções gratuito.University Of Texas 7.6 Meter Telescope Project Nov 04,1982·University Of Texas 7.6 Meter Telescope Project University Of Texas 7.6 Meter Telescope Project Barnes,T.G.1982-11-04 00:00:00 For over two years the McDonald Observatory of The University of Texas at Austin has has been actively designing a very large optical telescope.The design is largely constrained a large optical telescope.is largely constrained by the two requirements

pcd inserts for turning and milling aluminum alloy

swift manufacturing ltd supply with polycrystalline diamond pcd inserts for turning and face milling,pcd cutting tool inserts which is an indexable inserts widely used in cnc machining for fine finishing aluminum alloy and tungsten carbide,such as work part of aumotive cylinder head,wheel hub,pressure tanks,gearbox shaft,valves and composite bearing materials,different pcd grain sizes when