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1. www.celestron.com › blogs › knowledgebaseWhat is the difference between BaK-4, BK-7 and K9 glass ...

   www.celestron.com › blogs › knowledgebase

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   BK-7 (as well as the very similar K9) refers to a type of borosilicate glass that has long been and still is widely used across many different optical product brands and models. BK-7 and K9 are lower in cost than BaK-4 and therefore are often found in lower priced products than BaK-4.

2. syronoptics.com › what-is-the-abbe-number-n-bk7What is the abbe number n-BK7? - SyronOptics

   syronoptics.com › what-is-the-abbe-number-n-bk7

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   Abbe Number of n-BK7. The Abbe number of n-BK7 glass is typically around 64.17. This relatively high Abbe number indicates that n-BK7 has low dispersion, meaning it does not spread out light into its constituent colors as much as materials with a lower Abbe number.

3. www.schott.com › shop › advanced-opticsSCHOTT N-BK7® | SCHOTT Advanced Optics

   www.schott.com › shop › advanced-optics

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   “N”-glass as an environmentally friendly alternative to conventional lead and arsenic-containing glass types. Find more information in the tabs below or on our website. Compare glass types with our Interactive Abbe Diagram.

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4. www.schott.com › shop › mediasData Sheet - Schott AG

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   Data Sheet SCHOTT N-BK 7® 517642.251 n n d e = 1.51680 = 1.51872 ½ ½ d e = 64.17 = 63.96 n n F F'--n n C C' = 0.008054 = 0.008110 Refractive Indices » [nm] n2325.42325.41.48921 n1970.11970.11.49495

5. media.schott.com › api › publicOptical Glass Datasheet N-BK7HT - Schott AG

   media.schott.com › api › public

   Datasheet N-BK7HT n d = 1.51680 n d = 64.17 n F - n C = 0.008054 517642.251 n e = 1.51872 n = 63.96 n F' - n C' = 0.008110 Refractive Indices Internal Transmittance τ i Relative Partial Dispersion P

6. www.mindrum.com › glass › n-bk7-and-bk7N-BK7 and BK7 | Mindrum Precision

   www.mindrum.com › glass › n-bk7-and-bk7

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   N-BK7 is a softer glass that is significantly more sensitive to thermal variations than either fused quartz or low CTE materials such as Zerodur so special considerations have to be made in manufacturing to adjust for these properties.

7. People also ask

   What is the value of N-BK7?

   • The value of N-BK7 for refractive index (n) is 1.51680 = 1.51872 ½ and Abbe number (V) is 0.008054.

   Data Sheet

   www.schott.com/shop/medias/schott-datasheet-n-bk7-eng.pdf?context=bwfzdgvyfhjvb3r8njkxodawfgfwcgxpy2f0aw9ul3bkznxoztuvadm4lzg4mtazmtyxmdm3mtaucgrmfgjjnmi4zjfmy2q1njmxmte0mjkzmtuwogrmmtuzotg2nwjjztgzmja0otc2ntnimthjn2rhmji4ngzmmwm4mwu

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   What is BK7 & N-BK7?

   • BK7 and N-BK7 are high purity, low cost borosilicates with excellent optical properties, making them a frequent choice for optics, prisms, and windows.

   N-BK7 and BK7 | Mindrum Precision

   www.mindrum.com/glass/n-bk7-and-bk7/

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   What is N-BK7 glass?

   • N-BK7 is a softer glass that is significantly more sensitive to thermal variations than either fused quartz or low CTE materials such as Zerodur so special considerations have to be made in manufacturing to adjust for these properties.

   N-BK7 and BK7 | Mindrum Precision

   www.mindrum.com/glass/n-bk7-and-bk7/

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   What are N-BK7 windows?

   • N-BK7 windows are glass windows that are ideally suited for industrial applications. They are available uncoated or with a MgF 2 anti-reflection coating and are often used as a protective element between two environments.

   Commercial Grade N-BK7 Windows | Edmund Optics

   www.edmundoptics.com/f/commercial-grade-n-bk7-windows/14575/

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   What is the difference between BK-7 and K9?

   • BK-7 (as well as the very similar K9) refers to a type of borosilicate glass that has long been and still is widely used across many different optical product brands and models. BK-7 and K9 are lower in cost than BaK-4 and therefore are often found in lower priced products than BaK-4.

   What is the difference between BaK-4, BK-7 and K9 glass?

   www.celestron.com/blogs/knowledgebase/what-is-the-difference-between-bak-4-bk-7-and-k-9-glass

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   What does NBK mean?

   • NBK can mean several things: Natural Born Killer(s). It is also used as an abbreviation for Nobody Knows, Never Been Kissed, and Nolte, Busey, Kristofferson (an online video series). NBK is also the name of the actor Nandamuri Bala Krishna. Lastly, it is the name of the Never Be Killed (gaming clan).

   NBK - Slang/Internet Slang - Acronym Finder

   www.acronymfinder.com/slang/nbk.html

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8. media.schott.com › api › publicOptical Glass Datasheet SCHOTT N-BK7

   media.schott.com › api › public

   Datasheet SCHOTT N-BK7® n d = 1.51680 n d = 64.17 n F - n C = 0.008054 517642.251 n e = 1.51872 n = 63.96 n F' - n C' = 0.008110 Refractive Indices Internal Transmittance τ i Relative Partial Dispersion P