- They carry telescope mirrors, focusers, spiders, eyepieces, etc They also have a large selection of finished telescopes and accessori Murnaghan Instruments Corp - Formerly Coulter Optical These folks carry a large selection of telescope mirrors and parts, as well as telescope ,
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Polishing and Grinding Machine from Nanyang Srate Optical Instrument Co, Ltd Search High Quality Polishing and Grinding Machine Manufacturing and Exporting supplier on Alibaba
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The movie shows the Zeiss machine in all its phases, putting together notes, drawings and films that make up the story: from initial idea to the project, man,
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Fine grinding with a fixed-post grinding machine The fixed-post grinding machine is simple but effective Exerting 075 horsepower, it makes the grinding, polishing and figuring of the 62 centimeter primary and 20 centimeter secondary mirror possible by smooth movement and even distribution of stresses over six, 100 mm diameter Rollerblade© wheels
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"O telescope, instrument of knowledge, more precious than any sceptre" - Johannes Kepler "I have tried to improve telescopes and practiced continually to see with them These instruments have play'd me so many tricks that I have at last found them out in many of their humours" - Sir William Herschel
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Mirror-O-Matic grinding machine When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician
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The Cassegrain optical configuration was first defined by Laurent Cassegrain around 1672, a French Catholic priest who taught science classes at the College de Chartres, a high school level institution The Cassegrain configuration is a reflecting telescope characterized by two mirrors with optical power, located coaxially on the optical axis ,
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Stellafane External Links provide links to related information on Amateur Telescope Making, Mirror Making, Optics, other Astronomy clubs and local area links to the Springfield, Vermont area A large list of links to other web sites we hope you will find useful
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SPIE Digital Library Proceedings Sign In View Cart Help
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Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory The grinding machine was moved to Pasadena in ,
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Nov 01, 2002· Development of an ultra-precision grinding system for machining optical aspheric components with a large depth—diameter ratio M Chen, Q Zhao, S Dong, and D Li Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 2002 216 : 11 , ,
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Telescope Mirror Blanks Providing telescope mirror blanks and kits to telescope makers Mirror blanks are individually tested for internal strain Plastic protractor inserted under a 6 inch mirror blank during a stress test, to illustrate what stress would look like - if there were any present
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About product and suppliers: 1,233 optical lens grinding machine products are offered for sale by suppliers on Alibaba, of which other optics instruments accounts for 19%, lenses accounts for 5%, and electronics production machinery accounts for 1%
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Leonardo’s Mirror Grinding Machine leonardo miror grinding machine , Devices like these are still used nowadays by amateur telescope/optical instrument makers round the world The version they use is a table top sized mechanism but is essentially of the same design, the only difference being the use of an electric motor instead of the ,
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Aug 28, 2012· Ultra-precision grinding machines were developed to support silicon wafer processing As the size of silicon wafers increased up to 300 mm by the year 2000, the grinding machines became larger and demanded improved relative accuracy to ensure subsequent post-grinding processes would be effective on larger size wafers
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My Mirror Grinding Machine For a long time I've wanted to build a machine for grinding telescope mirrors Dennis Rech's M-o-M designs finally inspired me to just get up and do it Over the years, I'd been collecting motors, gear boxes, pulleys, etc Most of them came from industrial junk yards
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Oct 15, 2015· Lens grinding machine, circa 1836 , instrumentation has come to mean better and bigger telescop Today, the instrument makers include the thousands who contributed to the Hubble space telescope and the thousands more who are working on the Webb telescope , And the revolution was sparked by a few crude lenses fabricated with tools made in ,
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interested in the art of lens grinding and he decided to get more information from the well-known instrument maker, Johann Wiesel from Augsburg, southern Germany The optical instruments Wiesel made, such as spectacles, telescopes and microscopes, were ,
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Valve Grinding & Lapping Machin VM1150 or VM1200 Gate Valve Grinding & Lapping , Optical Alignment Systems; ID Mount Attachments , traditional main telescope with a fixed-focus cross telescope mounted in either the horizontal or vertical axis of the instrument The second telescope is fixed at infinity focus to make collimation or auto ,
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TELESCOPE MIRROR GRINDING MACHINE | Optical Instruments Mirror grinding machine construction log – JamesCrombie page1 Mirror grinding machine , Mark's Notes for the Amateur Telescope Maker Mark's Notes for the Amateur ,
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Chapter 1 Grinding Tools Chapter 2 Curve Generators, Generating Chapter 3 Small Lens Work Chapter 4 Accessories for Glass Working Chapter 5 Grinding and Polishing Machines Chapter 6 Making and Testing Flats Chapter 7 Telescope Construction Chapter 8 Telescope Accessories Chapter 9 Photography Chapter 10 The Telescope Maker's Workshop
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completed in 1931, and the optical shop, in 1933, were , ties, adaption of stock electrical parts and instruments to specialized telescope control, and installation and , has been the 200-inch grinding and polishing machine This machine weighs 160 tons, and has a width of ,
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Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective Different techniques are ,
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2) 156,160,167 Finished/Semi-finished aspheric lens 1499 Polarized lens3) 156 Finished/Semi-finished photochromic (Transition) grey/brown Single vision,Flat-top bifocal,Progressive lensD Precision Optics(Optical) Machine and Consumable1) Glass sawing machine,Centerless cylindrical grinding machine, Cylindrical grinding machine2 ,
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Optical Structures is a high-tech manufacturing company that specializes in electro-optical-mechanical engineering and manufacturing OSI caters to institutional and government customers desiring large and specialized custom devices and instruments OSI also seeks out and forms select strategic partnerships with other manufacturing companies to provide key design and production manufacturing ,
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IndiaMART >Optical, Laser Instruments & Devices >Optical Machine >Optical Glass Cutting Machine , Machines are availabe with diffrant sizes/types diamond wheels and colours body ske-glass edge grinding machine is generaly with 125 x 16 x 3 mm auto standerd diamond wheel also we are manufacture machines with 150 x 16 x 3 mm diamond ,
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Table 1 summarizes the optical parameters of the Seimei telescope Seimei is a Ritchey–Chretien telescope with an aperture of 378 m with two Nasmyth foci of focal ratio of f/60 (see figure 4) The optical design is based on that of the WIYN 35 m telescope on Kitt Peak, USA (Johns & Blanco 1994)
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Research to develop manufacturing and testing equipment for optical telescope components is discussed Methods for testing astronomical optics are reviewed and evaluated A 25-m tower used to test large mirrors is described The testing devices in the tower and on the grinding machine are examined Examples of testing astronomical optics are considered
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Mar 06, 2006· Making a homemade mirror grinding machine - posted in ATM, Optics and DIY Forum: I want to make a motorized mirror grinder , any good info on this , i have a couple geared motors , low speed high torque One more question ,will 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you , John
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@Company Address
No.416 Jianye Road, South Jinqiao Area,
Pudong New Area, Shanghai, China.
Sales Hotline
+86-21-58386189, 58386176
