Optical constants of HOYA - FDS (Special dense flint)
FDS90-SG
Complex refractive index (n+ik)
Derived optical constants
Dispersion formula
$$n^2=3.2606321-0.017780398λ^{2}+0.040902938λ^{-2}+0.0056076934λ^{-4}-0.00056434039λ^{-6}+5.4763391\text{×}10^{-05}λ^{-8}$$Conditions
temperature: 293
Comments
Recommended glass type
References
HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)
Data
Additional information
Properties of FDS90-SG
thermal_dispersion:
-
type: formula A
coefficients: -4.62e-06 1.29e-08 -2.11e-11 1.04e-06 1.27e-09 0.296
nd: 1.84666
Vd: 23.78
glass_code: 847238
glass_status: standard
density:
-
value: 3500
thermal_expansion:
-
temperature_range: 243 343
value: 8.7E-6
-
temperature_range: 293 573
value: 1.07E-5
dPgF: 0.0137
resistance:
climatic: "2.0"
stain: "1.0"
acid: "1.0"
About
HOYA Corporation is a global technology company based in Japan, known for its diverse range of products in the fields of healthcare and optics. In the optical industry, HOYA is particularly recognized for its high-quality optical glass and lens technologies. The company produces a wide array of optical products, from eyeglass lenses with advanced coatings to specialized glass materials used in cameras, telescopes, and other precision optical instruments. HOYA's expertise extends to various types of optical glass, including low-dispersion and high-refractive-index materials, which find applications in situations requiring exceptional optical clarity and performance. Beyond its contributions to optics, HOYA has also ventured into medical technologies, making it a multi-faceted company with a broad impact. With a commitment to innovation and quality, HOYA has earned a reputation as a leader in its field, consistently delivering products that set industry standards for performance and reliability. Their expansive portfolio and technological prowess make them a go-to provider for both consumer and industrial optical solutions.
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