Optical constants of SUMITA - CSK
K-CSK120
Complex refractive index (n+ik)
Derived optical constants
Dispersion formula
$$n^2=2.4804566-0.01071977λ^{2}+0.0135632λ^{-2}+0.00034918608λ^{-4}-2.3041786\text{×}10^{-05}λ^{-6}+1.5937217\text{×}10^{-06}λ^{-8}$$Conditions
temperature: 293
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book
Data
Additional information
Properties of K-CSK120
thermal_dispersion:
-
type: formula A
coefficients: 1.46e-06 1.54e-08 -2.77e-11 5.04e-07 3.24e-10 0.172
nd: "1.58700"
Vd: 59.6
glass_code: 587596
density:
-
value: 3000
thermal_expansion:
-
temperature_range: 243 343
value: 7.2E-6
-
temperature_range: 293 573
value: 9.1E-6
dPgF: -0.0031
resistance:
climatic: "2.0"
acid: "4.0"
About
SUMITA Optical Glass, Inc. is a Japanese corporation known for its specialization in the production and development of optical glass, optical fiber, and various other photonic products. Founded in 1953, the company has established itself as a leading provider of high-quality optical materials that are used in a wide range of applications—from industrial and scientific optics to consumer electronics and medical devices. SUMITA's portfolio includes a variety of specialized optical glasses, including high-refractive-index, low-dispersion, and infrared-transmitting materials. These are often utilized in lenses, prisms, and other optical components requiring precision and high performance. With a strong commitment to research and development, SUMITA continually innovates to meet the evolving demands of the optics industry. Their rigorous quality control processes ensure that products meet the highest standards for optical clarity, consistency, and reliability. SUMITA Optical Glass, Inc. has garnered a reputation for excellence and innovation, making it a preferred supplier for organizations in need of advanced optical solutions.
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