Optical constants of SCHOTT - BK (Borosilicate crown)
BK7G18
Complex refractive index (n+ik)
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.26538542λ^2}{λ^2-0.00813104078}+\frac{0.0144191073λ^2}{λ^2-0.0543303226}+\frac{1.00323028λ^2}{λ^2-102.821166}$$Conditions
temperature: 293
Comments
inquiry glass
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets
Data
Additional information
Properties of BK7G18
thermal_dispersion:
-
type: formula A
coefficients: 1.52e-06 1.37e-08 -1.26e-11 4.36e-07 4.17e-10 0.194
nd: 1.51975
Vd: 63.58
glass_code: 520636.252
glass_status: special
density:
-
value: 2520
thermal_expansion:
-
temperature_range: 243 343
value: 7.0E-6
-
temperature_range: 293 573
value: 8.22E-6
dPgF: 0.0007
resistance:
stain: "0.0"
acid: "1.0"
alkali: "2.0"
About SCHOTT AG
SCHOTT AG is a German multinational company renowned for its expertise in specialty glass and glass-ceramics. Founded in 1884, the company has been a pioneer in the field, with innovations that have significantly impacted a variety of industries, including healthcare, home appliances, electronics, and optics. In the optical domain, SCHOTT offers a comprehensive range of high-quality glass types, including crown and flint glasses, as well as specialty materials like laser glasses and radiation-shielding glasses. These materials are used in a myriad of applications, from consumer electronics and camera lenses to scientific instruments and aerospace technologies. SCHOTT's glass products are highly regarded for their quality, consistency, and durability, meeting rigorous industry standards. With a strong focus on research and development, the company has continued to introduce innovative products that address the evolving needs of the optical industry. SCHOTT's commitment to quality and innovation has established it as a leading provider of specialty glass solutions, making it a go-to choice for designers and manufacturers seeking high-performance materials. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.
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