Chalcogenide Glass VIG 09
Chalcogenide glass offers excellent refractive-index uniformity/stability for chromatic correction and avoiding thermal defocus in2–12μm IR lenses. Low glass-transition temperature and chemical stability permit precision molding for mass production. Uses include surveillance, maritime/ships, firefighting/police, sensors and IR products. 光智科技 makes high-purity, uniform glass in varied compositions/sizes, including Ge-As-Se, Ge-Sb-Se and As-Se. Molding, machining and polishing produce plane, spherical and aspheric optics.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Circular Disc [Parameter Image 01; Original ETV Not Changed to TTV; Independent Product Shape / Dimension Table] | ~400mm; Surface Roughness Rq<0.2μm; ETV<0.03mm |
| Lens (Spherical / Aspheric) [Parameter Image 01; Independent Product Shape / Dimension Table] | Diameter ~150mm; Surface Roughness Rq<0.5μm; Parallelism <0.03mm |
| Refractive-Index Temperature Coefficient dn/dT [Parameter Image 01 Material Properties; Explicit Negative Exponent in Source] | 166 ×10⁻⁶K⁻¹ |
| Refractive Index [Parameter image 01; wavelength 2μm; λ/μm explicitly specified in the table header] | 3.2184 |
| Refractive Index [Parameter image 01; wavelength 3μm; λ/μm explicitly specified in the table header] | 3.1903 |
| Refractive Index [Parameter image 01; wavelength 4μm; λ/μm explicitly specified in the table header] | 3.1755 |
| Refractive Index [Parameter image 01; wavelength 5μm; λ/μm explicitly specified in the table header] | 3.1684 |
| Refractive Index [Parameter image 01; wavelength 6μm; λ/μm explicitly specified in the table header] | 3.1643 |
| Refractive Index [Parameter image 01; wavelength 7μm; λ/μm explicitly specified in the table header] | 3.1612 |
| Refractive Index [Parameter image 01; wavelength 8μm; λ/μm explicitly specified in the table header] | 3.1586 |
| Refractive Index [Parameter image 01; wavelength 9μm; λ/μm explicitly specified in the table header] | 3.1564 |
| Refractive Index [Parameter image 01; wavelength 10μm; λ/μm explicitly specified in the table header] | 3.1542 |
| Refractive Index [Parameter image 01; wavelength 11μm; λ/μm explicitly specified in the table header] | 3.1519 |
| Refractive Index [Parameter image 01; wavelength 12μm; λ/μm explicitly specified in the table header] | 3.1497 |
| Transmittance [Parameter image 02, original left column “2.5”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 56.58 % |
| Transmittance [Parameter image 02, original left column “3”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 56.93 % |
| Transmittance [Parameter image 02, original left column “4”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.47 % |
| Transmittance [Parameter image 02, original left column “5”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.44 % |
| Transmittance [Parameter image 02, original left column “6”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.61 % |
| Transmittance [Parameter image 02, original left column “7”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.78 % |
| Transmittance [Parameter image 02, original left column “8”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.89 % |
| Transmittance [Parameter image 02, original left column “9”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 58.35 % |
| Transmittance [Parameter image 02, original left column “10”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 58.43 % |
| Transmittance [Parameter image 02, original left column “11”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 58.57 % |
| Transmittance [Parameter image 02, original left column “12”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 58.32 % |
| Transmittance [Parameter image 02, original left column “12.5”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 56.58 % |
| Transmittance [Parameter image 02, original left column “13”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 54.53 % |
| Transmittance [Parameter image 02, original left column “14”; the left column does not specify wavelength or unit, and no unit is borrowed from image 01; rows 8~12 are not labeled as averages and are not named as average values] | 57.28 % |
| Transmittance [Original Left Column in Parameter Image 02 Is 8~12; No Wavelength or Unit Stated in That Column, so Figure 01 Units Are Not Borrowed; The 8~12 Row Is Not Marked Average and Is Not Named an Average Value] | 58.31 % |
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