Chalcogenide Glass VIG 04
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] | 20 ×10⁻⁶K⁻¹ |
| Material Composition [Explicit Chemical Subscripts in Parameter Image 01/02 Headings] | Ge₁₀As₄₀Se₅₀ |
| Refractive Index [Parameter image 01; wavelength 2μm; λ/μm explicitly specified in the table header] | 2.6413 |
| Refractive Index [Parameter image 01; wavelength 3μm; λ/μm explicitly specified in the table header] | 2.6272 |
| Refractive Index [Parameter image 01; wavelength 4μm; λ/μm explicitly specified in the table header] | 2.6218 |
| Refractive Index [Parameter image 01; wavelength 5μm; λ/μm explicitly specified in the table header] | 2.6189 |
| Refractive Index [Parameter image 01; wavelength 6μm; λ/μm explicitly specified in the table header] | 2.6167 |
| Refractive Index [Parameter image 01; wavelength 7μm; λ/μm explicitly specified in the table header] | 2.6145 |
| Refractive Index [Parameter image 01; wavelength 8μm; λ/μm explicitly specified in the table header] | 2.6126 |
| Refractive Index [Parameter image 01; wavelength 9μm; λ/μm explicitly specified in the table header] | 2.6106 |
| Refractive Index [Parameter image 01; wavelength 10μm; λ/μm explicitly specified in the table header] | 2.6084 |
| Refractive Index [Parameter image 01; wavelength 11μm; λ/μm explicitly specified in the table header] | 2.6059 |
| Refractive Index [Parameter image 01; wavelength 12μm; λ/μm explicitly specified in the table header] | 2.6034 |
| 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] | 65.42 % |
| 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] | 65.14 % |
| 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] | 65.48 % |
| 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] | 65.57 % |
| 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] | 65.82 % |
| 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] | 65.89 % |
| 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] | 66.35 % |
| 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] | 66.92 % |
| 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] | 67.14 % |
| 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] | 66.97 % |
| 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] | 65.10 % |
| 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] | 62.46 % |
| 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] | 61.38 % |
| 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] | 62.05 % |
| 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] | 66.50 % |
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