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Optical constants of ISUZU - ISK (Heat absorbing filter)
ISK370

Wavelength: µm
 (0.200–2.000)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Conditions & Spec sheet

nd: 1.509
Vd: 84.8
density: 2580
thermal_expansion:
  - 
    temperature_range: 373 573
    coefficient: 5.8E-6
transformation_temperature: 857
durability: 1
hardness:
  - 
    type: Knoop
    value: 4730000000

Comments

Heat absorbing filter (ISK series). Glass type: P2O5-Al2O3.

References

Data kindly provided by Koichiro Ikeda, ISUZU GLASS LTD. Nov 2024.
See also Isuzu Glass Products

Data

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INFO

Isuzu Glass Ltd.

Established in 1905 and headquartered in Osaka, Japan, Isuzu Glass Ltd. specializes in manufacturing molded glass lenses and optical filters. Their product range includes colored optical glasses and lenses utilized in projectors, lasers, medical devices, sensors, semiconductors, and energy equipment.

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Glass

Glass is a versatile, amorphous material that has been an essential component in optical technologies for centuries. Comprising mainly of silica along with various additives like soda, lime, or boron, glass can be engineered to exhibit a wide range of optical properties, such as refractive indices and dispersion characteristics. In the optical industry, specialized types of glass like crown, flint, and extra-low dispersion (ED) glasses are used for manufacturing lenses, prisms, and other optical elements. These glasses are precisely formulated to offer specific properties, such as low chromatic aberration or high light transmittance across different spectral ranges. Glass can also be coated with thin layers of materials like anti-reflective coatings to enhance its optical performance. More recently, advances in photonics and nanotechnology have led to the development of innovative glass types, such as photonic crystal and metamaterial glasses, which exhibit unique light-manipulating properties. It is crucial to note that the optical properties of glass, including its refractive index, can vary depending on its composition and temperature, making it important to consult specific data for particular applications. Overall, glass remains a foundational material in optics, its wide applicability owed to its tunable properties and general robustness.

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