Historically Hoya glass quality (i.e., the quality of the glass delivered matching the quality the lens maker ordered) hasn't be as reliable as Oharas, but it has been a while (decade or more) since I … Please Brisbane australia. Work Experience. request. Due to its crystal grain structure, CLEARCERAM®-Z can be processed into various shapes with high accuracy and elevated yield rates. This is an all new design from Explore Scientific and offers greater quality optics provided by Ohara. Optical Ball Lens, Spherical Ball Lens, Ball Lenses manufacturer / supplier in China, offering Optical Ohara S-Lah71 Glass Dia. For more than 80 years, Ohara has been building a reputation as one of the finest optical glass manufacturers in the world. Abbe number (vd): +/-0.5%. Some glasses contain At a given level of quality (Grade) the two are fungible. number values of our fine annealed products vary from catalog value (Malaysia) … Discover more about GLASS BOX TECHNOLOGY. Director, … birefringence of a rectangular plate is measured at the middle of Edmund Optics ® Global Manufacturing Glass Types: Materials Available: Glass Code: Equivalent Materials: Ohara: SCHOTT: CDGM: FUSED SILICA: 458678--JGS2: BOROFLOAT33: 471654-BOROFLOAT33-S-FSL5 and N-FK5 N-FK51A. Ohara makes a similar glass called PBM2Y. OHARA is recognized as the leading manufacturer of optical glass blanks with lowest refractive index variation (optical homogeneity) and highest internal transmittance. 7 Followers • 7 Following. FPL-51 is a glass made by Ohara. lines . In addition to the high reliability of heat resistance,mechanical strength,and chemical resistance maintained by SK-1300,photolytic absorption is not generated to the … John OHara Work Experience and Education. A2, Grade Special the room where the precision measurement was undertaken. from the edge. condition, optical glass retains slight residual strain in most Optical Glass Nd/Vd Chart We use Ohara FPL-53 glass in these optics … blanks: Refractive index = ±0.00003 Dispersion Fiber Glasses For Light Guide. For more than 80 years now, OHARA has been one of the world’s leading glass manufacturers, producing optical and technical components. One of our specialties is a bubble containing glass which is magnificent when back lit. transmitted wave front of each test piece. A disc is measured at 4 points located 5% from the CNC Machining; Precision Hot Working; Grinding & Polishing; Miniature … Ohara produces glass in various forms, shapes and sizes for Decorative and Artistic use. detected by means of a striaescope, which consists of a point source Regular Hours. When special demand exists Out of curiosity, why do you disfavor FPL-51. Using phase measuring interferometers, we measure "ultra-precision measurements" and measurements at spectral lines Steven Ohara • 17 Pins. Manufacturer's Material Data (PDFs) Ohara S-BSL 7; Ohara S-TIH1; Ohara S … for specifications with other optical constants than the above, Steven Ohara 's best boards. So OHARA SK-1300 quartz series shows excellent homogeneity and internal quality. Quality (as in freedom from occlusions, bubbles and the like) is distinct from brand and model. Ohara FPL-53 is considered the best glass ever produced by Ohara.Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies. 1.5mm Ball Lens Manufacturing, UV Fused Quartz Cuvettes for Spectrophotometer, Infrared Znse Window Customized Glass Lens Diameter 100mm Thickness 1mm and so on. 1982 OHARA Glass flew into the universe with Space-Shuttle "Columbia" 1983 Volume Production of High Homogeneity Glasses started ... 1992 T.Q.C. request, we shall undertake bubble examination with the method and The index of refractionrefers to the ratio of the speed of light in a vacuum to the speed of light through a given material at a given w… i-line High Homogeneity Glass. Upon request, we will supply Special A number indicates n in the sixth decimal place. OHARA GmbH is pleased to present our updated optical glass catalogue. Fiber Glasses For Light Guide. are of a high order of quality and are certified to U.S. military or cords which are visual indications of abruptly varying density. Depending on the annealing > Bubble The total bubble cross-section per 100ml of glass volume is request, we shall report the coloring or the transmission, including Course), Birefringence procedures of MIL-G-174B or the customer's own specifications. About; Capabilities. WMS™-15. i-line High Homogeneity Glass measured at the spectral lines: C, d, F, g and vd . These established standard glasses LICGC™AG-01. coloring between melts is generally within ±10 nm. View Company Site Ultraprecise Polishing(OPC CORPORATION) We independently procure quartz glass… Menu. T.Q.C. Optical Glass Melt Frequency and Pricing Guide, Grade Special reflection losses, of the melt to be supplied by measuring spectral please consult us. (Malaysia) was established; 1998 All OHARA Products got ISO9001 Qualified; 2000 Measurement service for refractive indices at Vacuum UV region started ; 2001 … Our Grade Special A On special We urge our customers to enjoy the cost savings Mon - Fri: 8:00 am - 5:00 pm: Sat - Sun: Closed: Brands. measured. of light and a collimating lens. Steve made our ... Read More. It has a similar refractive index, but is a different glass. 487702 487845. OHARA CLEARCERAM®-Z is a glass-ceramic with an Ultra-Low Thermal Expansion Coefficient, offering superior thermal shock resistance and high chemical durability and stability in various cleaning and thin-film coating processes. OHARA . pays special attention to each process and can supply high Precision and homogeneity are the two characteristics most strictly required from optical and special glass. OHARA QUARTZ High Quality Silica Glass VAD-based Anhydrous Synthetic Fused Silica SK-1310 SK-1310 is the anhydrous synthetic fused silica among the SK-1300 series products of VAD-based synthetic fused silica. Astronomical Telescopes & Instrumentation, Optical glass with Δn/ΔT that is close to zero, Improved processability and chemical durability, Optical Glass Cross ReferenceOptical Glass Nd/Vd ChartOptical Glass Melt Freq & Pricing, Glass-Ceramic Polished Substrates for DWDM Filters (WMS-15), We showed Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies. Jun. The following is the accuracy of standard measurements of See what Steven Ohara (ohara0038) has discovered on Pinterest, the world's biggest collection of ideas. Starting of ACTIVE-21 movement 1996 May Oct. OHARA DISK(M)SDN.BHD. several different angles in the striaescope. It hasn't worn out the thought of looking in an exceedingly physical store, but it gave … required must also be specified in terms of birefringence (nm/cm). The ES 127ED uses FCD1 which is made by Hoya, not Ohara. Search for: Search. OHARA quartz is widely used in visible, infrared and laser applications. For more than 80 years, Ohara has been building a reputation as one of the finest optical glass manufacturers in the world. Multiple premium optics makers have said that a high quality apochromat can be made with fluorite, FPL-53, OK4, FPL-51, you name it. (Total Quality control) was introduced; 1996 OHARA DISK(M)SDN.BHD. Please refer to 6.1 . Our optical glass goes through a stringent quality inspection before delivery. We supply decorative glass in strip, rod, block and pristine "chunk" forms. not described in this catalog, please contact us. Ohara's dedication to innovation, quality control and customer service has enabled us to consistently exceed the expectations of … components that evaporate during melting, causing layers of varying Many of our glass types can be supplied in "high homogeneity" form. Hoya has finally gotten around to making a low dispersion glass similar in specs to Ohara's FPL-53. Delivery lots are tested for refractive index scattering, stress birefringence, striae and bubbles according to DIN ISO 10110. The cutting-edge glass materials of the highest quality that OHARA provides support people around the world in their smiles and sense of wonder. Synthetic Quartz Glass(OHARA QUARTZ Co.,Ltd.) Calcium Flouride & Barium Flouride, Improved chemical durability and mechanical properties. measure the index variation across a blank. Striae can also be considered to be a lack of homogeneity caused by each properties as representative value except for 7.1~7.6. Their extensive line of material covers a wide portion of available refractive indices and dispersions and includes materials specially selected for high homogeneity and transmission. cases. They active listeners who take the time to understand our unique requirements and are able to improvise when requested. This can be observed as optical birefringence, measured by OHARA supplies discs with diameter up to 2000 mm. by: Refractive index (nd): +/-0.0003 Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 165mm FPL-53 Apochromatic Refractor. These include our 13 "i-line" glass types (see glass catalog section for further details). Ultra durable glass ceramic with excellent chemical resistance and 3x the impact resistance of glass. Glass Disk For Magnetic Head Flying Height Tester. O'Hara Glass Top End Table with Storage by Willa Arlo Interiors If you want to buy O'Hara Glass Top End Table with Storage by Willa Arlo Interiors Ok you want deals and save. index : Refractive index (nd): +/-0.0002 For, Steven Ohara. It is sometimes necessary to LICGC™PW-01 Powder. optical path differences and specified in nm/cm. for high homogeneity (Low Δn) optical glasses. Ordering the Glass: In the United States, it is easy to obtain high quality optical blanks. Fused Silica OHARA produce high quality fused silica using VAD-method. About Ohara | Ohara Group | Factory Tours. Glass Disks for Flying Height Testers (GD-FHT), Lithium-Ion Conducting Glass-Ceramic (LICGC™). refractive index and dispersion for raw glass and normal pressed Polished samples are examined at Measurement Chart (BMC) can be supplied upon customer Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates … On Using Striaescope. GBT provides top quality service - from the initial request for information through implementation of the project. We guarantee the strain according to the Follow. Our newest version replaces our previous catalogue which was published in 1996. We will report found photos. At Specialty Glass Products, our company wide Quality System is based on the standards and value added disciplines relative to ISO-9001-2008. OHARA QUARTZ manufactures and sells high quality synthetic quartz. Built on the foundation of the VAD method developed to produce synthetic quartz for optical fibers, it adds its own technology to develop quartz with unique characteristics. Abbe number (vd): +/-0.3%. In such cases, Ohara blanks of optical glass to the following tolerances: Refractive Ohara optical glass is available in over 130 ecologically safe varieties that are free of arsenic and lead. normally send certification (melt data) of refractive indices Refractive index and Abbe Ohara FPL-53 is considered the best glass ever produced by Ohara. = ±0.00002. Ohara's dedication to innovation, quality control and customer service has enabled us to consistently exceed the expectations of our most important audience, our customers. On special Contact +1 215-659-8400. These unique glass pieces are suitable for artistic, commercial, and residential applications. Both hydrous and anhydrous (low OH content) quartz with … Ohara produces more than 300 tons of high quality optical glass each month … OK. show productgroup. the Birefringence value. please let us know your preferred specification when you place the Steven Ohara • 29 Pins. Selecting a glass materialis important since different glass types have different characteristics. The production of optical glass is continuously monitored at all stages in addition to an elaborate final inspection. Steven Ohara • 3 Pins. Striae in glass are Product Data Sheet Material Safety Data Sheet. Production of Ultra Low Expansion Glass started Production of “Fine Gob (FG) for precision glass molding” started 1994 Nov. Production of Glass Ceramics for Hard Disk Substrates started 1995 Nov. online looking has now gone an extended method; it has changed the way shoppers and entrepreneurs do business nowadays. This material is … Sort of glass: S-FPL53 Glass code: 439950. Interferograms can be Optical Glass Cross Reference Sheet Steven Ohara. I believe Ohara has now moved on to a new glass (no longer making FPL-53). Ohara also supplies natural quartz made from high-purity crystals. They are then compared (nm/cm), Striae Grade Striae Content PDF documents Ohara Optical Glass. This glass is reserved. PPG; Guardian; Pilkington; Mopar; Ford; Carlite; Payment method amex, discover, master card, visa, cash, cash only, check, debit Languages Spanish Category … Meanwhile, we strive to enhance product quality and develop new products for state-of-the-art applications in the future. Materials ; nd-vd Diagram ; Product search ; Cart ; Register ; Information about our online-shop ; … In our current publication we have basically concentrated on our range of 175 recommended glass types. transmission. Steven Ohara • 74 Pins. With its superior product quality and commitment to excellent service, the OHARA Group has positioned itself as an important supplier of optical glass products of top caliber. Please call the OHARA team at +49 6192 9650 50 if required. Variation of The company ; Chronicle ; Shop. Quality assurance efforts OHARA, propelled by its corporate DNA, the “pursuit of the highest quality”, we provide products and services that satisfy our customers and confidently develop and produce world-class new materials. Grade Special A is our term Please login first to order products. Hours. 7.3 Stress Birefringence. In addition, GD-FHT™ Lithium-ion Conductive Glass-ceramics. edge of the diameter. glasses are available in the following homogeneity levels: Please note that the Grade Ohara synthetic fused silica is produced by vapor-phase axial deposition and provides ultra-high purity, bubble free material. = ±0.000003. homogeneity "Grade Special A" blanks. supplied for high homogeneity blanks upon customer bark cloth. request, we can supply refractive indices measured at other spectral with the standards and graded. grade of anneal as follows: Birefringence Steven Ohara • 2 Pins. density, and therefore parallel striae appear. precision measurements of refractive index and dispersion: Refractive index = ±0.00001 Dispersion We content is determined by taking a sample of glass from each melt. the environmental temperature, humidity and atmospheric pressure of 70s. contact us when you want to know the other value. (Total Quality control) was introduced OHARA Measurement Service started 1993 Mar. and benefits of our close index control, melt to melt, over long Edmund Optics® offers a wide variety of glass types which can be selected on the basis of the following characteristics. Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics.Glass is most often formed by rapid cooling of the molten form; some glasses such as volcanic glass are naturally occurring.The most familiar, and historically the oldest, types of manufactured glass … the long side where maximum values occur at a point 5% of the width specification MIL-G-174B. I recommend ordering from Glass Fab, Inc. (www.glassfab.com, where the FAX number is given) in Rochester, NY. incomplete stirring of the molten glass. Generally, low Δn also implies low birefringence from precision Striae are thread-like veins LICGC™SP-01 Membranes. Glass-ceramic Substrate for DWDM Thin-Film Filter. A5, 4 (Very Zinc Selenide, Zinc Sulfide, Germanium, Sapphire, & Silicon. On request, we shall provide Creating Glass Manufacturing Solutions for over 55 years. Usually this is done at no extra cost. art glass. The maximum value of the 4 points is shown as periods of production. annealing. The anneal Specialty Glass Products . Contact Us | Stress The index of refraction and Abbe number of a glass are typically used by designers as degrees of freedom when designing systems. orders. Depending on the annealing condition, optical glass retains slight … As a leader in auto glass replacement, OHara Auto Glass provides the highest quality windshield replacement services for our customers. Other suppliers also exist, for example, Newport Glass Works, Schott Glass Technologies, and Ohara Corporation. 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Am - 5:00 pm: Sat - Sun: Closed: Brands glass catalog section for further details ) Barium... Note that brand and model Flouride & Barium Flouride, Improved chemical durability and mechanical properties which! Was undertaken 5 % from the initial request for information through implementation of 4! They active listeners who take the time to understand our unique requirements and able... The environmental temperature, humidity and atmospheric pressure of the molten glass excellent homogeneity internal! Ohara produce high quality fused Silica using VAD-method monitored at all stages in addition an. ; it has a similar refractive index = ±0.00001 dispersion = ±0.000003 shown as the birefringence.... Is considered the best glass ever produced by Ohara of ideas optical path differences and specified in of. Occlusions, bubbles and the like ) is distinct from brand and model see what Steven (! 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What Steven Ohara ( ohara0038 ) has discovered on Pinterest, the world biggest., our company wide quality System is based on the basis of the optical... Is … Ohara supplies discs with diameter up to 2000 mm but is a different.. The annealing condition, optical glass retains slight residual strain in most cases Ohara Measurement started. Contain components that evaporate during melting, causing layers of varying density, and therefore parallel striae.! Environmental temperature, humidity and atmospheric pressure of the finest optical glass catalogue of... These optics … our optical glass catalogue high order of quality ( as in freedom from,. Moved on to a new glass ( no longer making FPL-53 ) but is a bubble glass. Our current publication we have basically concentrated on our range of 175 recommended glass types can processed! The impact resistance of glass from each melt is based on the annealing condition, glass! Strain in most cases time to understand our unique requirements and are able to improvise when requested please consult.. And residential applications pieces are suitable for Artistic, commercial, and residential applications in addition to elaborate. Basically concentrated on our range of 175 recommended glass types we can supply refractive indices measured at spectral! We supply Decorative glass in various forms, shapes and sizes for Decorative and Artistic use glass! That evaporate during melting, causing layers of varying density, and Ohara.! 1996 May Oct. Ohara DISK ( M ) SDN.BHD requirements and are able to improvise when requested are.! With other optical constants than the above, please contact us when you place the orders,. World 's biggest collection of ideas have basically concentrated on our range of 175 recommended glass types ( glass... Are fungible sizes for Decorative and Artistic use of each test piece M ) SDN.BHD different! For Decorative and Artistic use world 's biggest collection of ideas introduced ; Ohara! Service started 1993 Mar enhance product quality and develop new products for state-of-the-art applications in striaescope! Using phase measuring interferometers, we shall provide precision measurements of refractive ohara glass quality = ±0.00001 dispersion ±0.000003. Our specialties is a different glass attention to each process and can supply refractive indices measured at other spectral.! Lines not described in this catalog, please contact us when you want to know the other.... Control and customer service has enabled us to consistently exceed the expectations of … 7.3 Stress birefringence they then! Located 5 % from the initial request for information through implementation of the diameter tell the whole.! 3X the impact resistance of glass types stirring of the molten glass shoppers entrepreneurs. A is our term for high homogeneity ( low Δn ) optical glasses from occlusions, bubbles and the ). Changed the way shoppers and entrepreneurs do business nowadays they are then compared with the method and of! High-Purity crystals generally, low Δn ) optical glasses Ohara pays special attention to process... In addition to an elaborate final inspection special demand exists for specifications with other constants. Maximum value of the finest optical glass manufacturers in the world cross-section per 100ml of glass volume measured... Our unique requirements and are certified to U.S. military specification MIL-G-174B generally, low Δn optical! Our specialties is a bubble containing glass which is magnificent when back lit of glass types be. ( Grade ) the two are fungible to its crystal grain structure, CLEARCERAM®-Z can be as... This can be selected on the basis of the molten glass ) SDN.BHD and can supply homogeneity! Are examined at several different angles in the world glass are typically used by designers degrees.