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  • Borosilicate glass - Wikipedia

    Many high-quality flashlights use borosilicate glass for the lens. This increases light transmittance through the lens compared to plastics and lower-quality glass. Several types of high-intensity discharge (HID) lamps such as mercury-vapor and metal-halide lamps use borosilicate glass as …

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  • Technical Glasses

    Non-alkaline earth borosilicate glass (borosilicate glass 3.3) The B 2 O 3 content for borosilicate glass is typically 12–13 % and the SiO 2 content over 80 %. High chemical durability and low thermal expansion (3.3 x 10–6/K) – the lowest of all commercial glasses for large­scale technical applications – make this a multitalented glass ...

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  • 2 - Sensitivity of the Optical Performance of LED ...

    Sensitivity of the optical performance of LED illumination systems to manufacturing tolerances Dr. Christian Paßlick Auer Lighting GmbH Bad Gandersheim Germany ... Liquid glass is pressed from a reservoir into the mold ... Produced free-form lens family for LED high-bay applications.

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    Borosilicate Glass Beads and Products. Our borosilicate glass beads starting with a size of 1 mm are used in many areas of daily life. Our outstanding quality is thereby known and valued world-wide.

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  • Corning Varioptic Lenses Technology Adjustable Liquid ...

    Corning Varioptic Lenses has created a programmable lens that can be reconfigured on demand by a voltage change. The liquid lens can adapt rapidly and continuously from diverging to converging and be modeled to support demanding variable focus applications.

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    The variation of the refractive index in a molded glass lens is an important parameter that can influence its optical performance especially for lenses used in high precision optical systems.

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    Structured Glass Light Guides for Efficient Lighting ... (GIMT) for precision glass optics is able to form optical glass components with high length-to-width ratios undercut geometries like mounting flanges and high quality surfaces. ... Multiple sharp images of the RGBW LED are visible caused by the projection lens. In such a case an ...

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  • Wafer-level micro-optics with mechanical features

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  • Optical Glasses - Over 120 Glass Types: SCHOTT Advanced ...

    A detailed description of SCHOTT optical glass properties is available in the 'Optical Glass - Collection Datasheets' that can be found in the Downloads area. Quality Assurance SCHOTT is both ISO 9001 and 14001 certified and can be your trusted partner. Our optical glass goes through a stringent quality inspection before delivery.

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  • METHOD FOR MOLDING GLASS LENSES - EASTMAN KODAK COUS

    Another object is to manufacture image forming glass lenses with surfaces having high quality and high accuracy. A still further object is to provide an improved method for molding glass into optical elements. A more specific object is to provide an improved method for molding glass into lenses.

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  • Glass Abrasion Resistance Ensures Consistent Light ...

    Borosilicate glass derives superior abrasion resistance from strong ionic bonding that results in a strong interconnected atomic glass network. Some phase separation between the boron and silica glass phases helps to create a stronger glass network and ultimately a …

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    IESNA type 2 vero 29 cob led lens for BRIDGELUX VERO Series COB LEDs. FOB Price: Get Latest Price; Supply Ability: ... high borosilicate glass 3.3 ... KL-SL107-87 glass lens is mainly used in street light tunnel light and other LED lamps and lanterns.

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  • Glass making

    Boron – this changes the thermal and electrical properties of the glass and is used to make Pyrex glassware which can withstand extremes of heat and cold. Lanthanum Oxide – this has excellent light reflective properties and is used to make high quality lenses in glasses.

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    Borosilicate glass is a type of glass with the main glass-forming constituents silica and boron oxide.Borosilicate glasses are most well known for having very low coefficients of thermal expansion (~5 × 10 −6 /°C at 20°C) making them resistant to thermal shock more so than any other common glass.

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    Be sure to ask them about lens material options like CR-39 polycarbonate Trivex or high-index plastic and specifically which would be the best for your lifestyle. After a lens is chosen you will likely have the option to add anti-glare/reflective anti-scratch and UV protective coatings. Conclusion

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  • Lens manufacturing process - AMERICAN OPTICAL CORPORATION

    Manufacturing semifinished and certain finished opthalmic lenses without surface grinding and polishing operation. A flat preform comprised of a thickness of a desired lens glass e.g. ophthalmic crown and a lesser thickness of a chemically soluble protective glass fused to at least one side of the lens glass with a smooth blemish-free interface is produced and thence cut and pressed or ...

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    8. Energy efficient glass
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  • Ultra-Precision Grinding Characteristics in Optical Glass

    Cylindrical lens core for optical transceiver was designed and machined. With the lens design data WC asymmetric core surface data were generated for non-revolutional ultra-precision grinding.

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  • Glass - Wikipedia

    Glass will transmit reflect and refract light; these qualities can be enhanced by cutting and polishing to make optical lenses prisms fine glassware and optical fibers for high speed data transmission by light. Glass can be coloured by adding metallic salts and can also be …

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    Fresnel Lens For Solar Panel Manufacturers Factory Suppliers From China As an expert specialized within this field we've been committed to solving any problem of high temperature protection for users.

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    Glossary of Optical Terms. ... To prevent internal reflections this design requires high quality glass and really well matched convex and concave lenses which makes this eyepiece one of the more expensive to produce and thus the difference between a poor quality Plössl and well made ones can be large. ... depending on the quality and number ...

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    The components of glass. Glass is a high-quality extraordinary and versatile material that possesses amazing properties. Glass is a material comprised of natural and nature-identical raw materials.Various substances such as soda (sodium carbonate) potash (potassium carbonate) limestone (calcium carbonate) and boron oxides are added to the main component of quartz sand …

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  • Oxide Glasses - an overview ScienceDirect Topics

    High-borate borosilicate glass is also known as leachable alkali-borosilicate glass with an optimum composition of 62.7 wt% SiO 2 26.9 wt% of B 2 O 3 6.6 wt% Na 2 O and 3.5 wt% of Al 2 O 3 (Elmer 1992). This glass can be further processed to produce Controlled Pore Glass (CPG) which is widely used as a stationary media in chromatography or ...

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  • LED DEVICES FOR COLOR CHECKING OR MATCHING - Bian Aixia

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    Optical Lenses. 56 Lens High Index Optical Lens manufacturer with high quality and reasonable price. Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints including cost and manufacturing limitations.

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    Glass Lamp Shade Tempered Glass Mouth Blown Glass manufacturer / supplier in China offering Beautiful Clear Diamond Style Water Drop Shape Crystal Prism Glass for Parts of Glass Lamp Blown Frosted Clear Cylinder Borosilicate Glass Tube Lamp Shade Lighting Cover Transparent Handmade High Borosilicate Glass Lampshade for Lighting and so on.

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    The third inspector now reports that pressed-glass lenses which from practical tests both with the naked eye and with the photometer have proven of equal efficiency to the cut-glass lenses can be made for about $150 each a saving of $250 over the cost of the cut-glass lenses. The pressed-glass lenses will be adopted for use in all 375 mm ...

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  • Haruya Kasa's research works Hokkaido University ...

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  • Optical Mirror Selection Guide

    It is a high quality borosilicate glass that offers low thermal expansion and high thermal shock resistance at a moderate cost. For applications requiring high thermal stability Zerodur substrates are …

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  • Sol–gel process - Wikipedia

    Macroscopic optical elements and active optical components as well as large area hot mirrors cold mirrors lenses and beam splitters all with optimal geometry can be made quickly and at low cost via the sol–gel route. In the processing of high performance ceramic nanomaterials with superior opto-mechanical properties under adverse ...

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