H-K9L
H-K9L is the most commonly used colorless optical glass and is widely used in visible and near-infrared optical components.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Abbe constant υ_d | 64.20 |
| Abbe constant υ_e | 64.00 |
| Dispersion difference n_F−n_C | 0.008050 |
| Dispersion difference n_F′−n_C′ | 0.008105 |
| Refractive Index n_t [λ=1014.0nm] | 1.50736 |
| Refractive Index n_s [λ=852.1nm] | 1.50983 |
| Refractive Index n_r [λ=706.5nm] | 1.51289 |
| Refractive Index n_C [λ=656.3nm] | 1.51432 |
| Refractive Index n_C′ [λ=643.8nm] | 1.51472 |
| Refractive Index n_He-Ne [λ=632.8nm] | 1.51509 |
| Refractive Index n_D [λ=589.3nm] | 1.51673 |
| Refractive Index n_d [λ=587.6nm] | 1.51680 |
| Refractive Index n_e [λ=546.1nm] | 1.51872 |
| Refractive Index n_F [λ=486.1nm] | 1.52237 |
| Refractive Index n_F′ [λ=480.0nm] | 1.52282 |
| Refractive Index n_g [λ=435.8nm] | 1.52667 |
| Refractive Index n_h [λ=404.7nm] | 1.53022 |
| Refractive Index n_i [λ=365.0nm] | 1.53626 |
| Dispersion Formula Constants A_0 | 2.2719694 |
| Dispersion Formula Constants A_1 | −9.9172187×10⁻³ |
| Dispersion Formula Constants A_2 | 1.0369753×10⁻² |
| Dispersion Formula Constants A_3 | 3.1190380×10⁻⁴ |
| Dispersion Formula Constants A_4 | −2.6458215×10⁻⁵ |
| Dispersion Formula Constants A_5 | 1.6475085×10⁻⁶ |
| Relative Partial Dispersion P_s,t | 0.3068 |
| Relative Partial Dispersion P_C,s | 0.5578 |
| Relative Partial Dispersion P_d,C | 0.3080 |
| Relative Partial Dispersion P_e,d | 0.2387 |
| Relative Partial Dispersion P_g,F | 0.5341 |
| Relative Partial Dispersion P′_s,t | 0.3048 |
| Relative Partial Dispersion P′_C′,s | 0.6033 |
| Relative Partial Dispersion P′_d,C′ | 0.2569 |
| Relative Partial Dispersion P′_e,d | 0.2371 |
| Relative Partial Dispersion P′_g,F′ | 0.4750 |
| Relative Partial-Dispersion Deviation from the Normal Line ΔP_C,t | 0.0158 |
| Relative Partial-Dispersion Deviation from the Normal Line ΔP_C,s | 0.0042 |
| Relative Partial-Dispersion Deviation from the Normal Line ΔP_F,e | −0.0014 |
| Relative Partial-Dispersion Deviation from the Normal Line ΔP_g,F | −0.0023 |
| Chemical Property Grade RC(S) | 1 |
| Chemical Property Grade RA(S) | 1 |
| Chemical Property Grade D_W | 3 |
| Chemical Property Grade D_A | 1 |
| Chemical Property Grade CR | 2 |
| Thermal properties T_g | 560 ℃ |
| Thermal properties T_s | 620 ℃ |
| Thermal properties T10^14.5 T_10^14.5 [In the original symbol, 10 is a subscript and 14.5 is a superscript] | 511 ℃ |
| Thermal properties T10^13 T_10^13 [In the original symbol, 10 is a subscript and 13 is a superscript] | 547 ℃ |
| Thermal properties T10^7.6 T_10^7.6 [In the original symbol, 10 is a subscript and 7.6 is a superscript] | 714 ℃ |
| Coefficient of Thermal Expansion α_−30/70℃ [−30 to 70℃] | 76 10⁻⁷/K |
| Coefficient of Thermal Expansion α_100/300℃ [100 to 300℃] | 95 10⁻⁷/K |
| Mechanical properties H_K | 595 10⁷Pa |
| Mechanical properties F_A | 100 |
| Mechanical properties E | 7920 10⁷Pa |
| Mechanical properties G | 3270 10⁷Pa |
| Mechanical properties μ | 0.211 |
| Mechanical properties B | 2.70 10⁻¹²/Pa |
| Density ρ | 2.52 g/cm³ |
| Refractive-Index Temperature-Coefficient Constants D_0 | −1.13×10⁻⁶ |
| Refractive-Index Temperature-Coefficient Constants D_1 | 1.97×10⁻⁸ |
| Refractive-Index Temperature-Coefficient Constants D_2 | −4.03×10⁻¹¹ |
| Refractive-Index Temperature-Coefficient Constants E_0 | 4.17×10⁻⁷ |
| Refractive-Index Temperature-Coefficient Constants E_1 | −1.86×10⁻¹⁰ |
| Refractive-Index Temperature-Coefficient Constants λ_TK | 0.214 μm |
| Internal Transmittance τ [λ=2400nm; Thickness 5mm] | 0.842 |
| Internal Transmittance τ [λ=2400nm; Thickness 10mm] | 0.709 |
| Internal Transmittance τ [λ=2200nm; Thickness 5mm] | 0.882 |
| Internal Transmittance τ [λ=2200nm; Thickness 10mm] | 0.778 |
| Internal Transmittance τ [λ=2000nm; Thickness 5mm] | 0.951 |
| Internal Transmittance τ [λ=2000nm; Thickness 10mm] | 0.904 |
| Internal Transmittance τ [λ=1800nm; Thickness 5mm] | 0.978 |
| Internal Transmittance τ [λ=1800nm; Thickness 10mm] | 0.957 |
| Internal Transmittance τ [λ=1600nm; Thickness 5mm] | 0.993 |
| Internal Transmittance τ [λ=1600nm; Thickness 10mm] | 0.987 |
| Internal Transmittance τ [λ=1400nm; Thickness 5mm] | 0.988 |
| Internal Transmittance τ [λ=1400nm; Thickness 10mm] | 0.975 |
| Internal Transmittance τ [λ=1200nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=1200nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=1060nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=1060nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=1000nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=1000nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=950nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=950nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=900nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=900nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=850nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=850nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=800nm; Thickness 5mm] | 0.999 |
| Internal Transmittance τ [λ=800nm; Thickness 10mm] | 0.998 |
| Internal Transmittance τ [λ=700nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=700nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=650nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=650nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=600nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=600nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=550nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=550nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=500nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=500nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=480nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=480nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=460nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=460nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=440nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=440nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=420nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=420nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=400nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=400nm; Thickness 10mm] | 0.997 |
| Internal Transmittance τ [λ=390nm; Thickness 5mm] | 0.998 |
| Internal Transmittance τ [λ=390nm; Thickness 10mm] | 0.996 |
| Internal Transmittance τ [λ=380nm; Thickness 5mm] | 0.997 |
| Internal Transmittance τ [λ=380nm; Thickness 10mm] | 0.995 |
| Internal Transmittance τ [λ=370nm; Thickness 5mm] | 0.997 |
| Internal Transmittance τ [λ=370nm; Thickness 10mm] | 0.995 |
| Internal Transmittance τ [λ=360nm; Thickness 5mm] | 0.996 |
| Internal Transmittance τ [λ=360nm; Thickness 10mm] | 0.992 |
| Internal Transmittance τ [λ=350nm; Thickness 5mm] | 0.991 |
| Internal Transmittance τ [λ=350nm; Thickness 10mm] | 0.982 |
| Internal Transmittance τ [λ=340nm; Thickness 5mm] | 0.987 |
| Internal Transmittance τ [λ=340nm; Thickness 10mm] | 0.974 |
| Internal Transmittance τ [λ=330nm; Thickness 5mm] | 0.975 |
| Internal Transmittance τ [λ=330nm; Thickness 10mm] | 0.951 |
| Internal Transmittance τ [λ=320nm; Thickness 5mm] | 0.946 |
| Internal Transmittance τ [λ=320nm; Thickness 10mm] | 0.894 |
| Internal Transmittance τ [λ=310nm; Thickness 5mm] | 0.881 |
| Internal Transmittance τ [λ=310nm; Thickness 10mm] | 0.776 |
| Internal Transmittance τ [λ=300nm; Thickness 5mm] | 0.746 |
| Internal Transmittance τ [λ=300nm; Thickness 10mm] | 0.557 |
| Internal Transmittance τ [λ=290nm; Thickness 5mm] | 0.524 |
| Internal Transmittance τ [λ=290nm; Thickness 10mm] | 0.275 |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line t] | 0.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line C′] | 0.7 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line d] | 0.9 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line e] | 1.3 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line F′] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −40 to −20℃; Spectral line g] | 1.8 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line t] | 1.2 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line C′] | 1.3 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line d] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line e] | 1.6 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line F′] | 1.7 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range −20 to 0℃; Spectral line g] | 2.0 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line t] | 0.8 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line C′] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line d] | 1.7 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line e] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line F′] | 2.0 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 0 to 20℃; Spectral line g] | 2.1 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line t] | 1.1 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line C′] | 1.3 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line d] | 1.4 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line e] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line F′] | 1.7 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 20 to 40℃; Spectral line g] | 2.2 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line t] | 1.4 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line C′] | 1.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line d] | 1.7 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line e] | 1.9 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line F′] | 2.4 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 40 to 60℃; Spectral line g] | 2.5 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line t] | 1.4 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line C′] | 1.9 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line d] | 2.0 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line e] | 2.3 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line F′] | 2.2 10⁻⁶/℃ |
| Temperature Coefficient of Relative Refractive Index dn/dt relative [Temperature range 60 to 80℃; Spectral line g] | 2.8 10⁻⁶/℃ |
| Coloration Degree λ_80/λ_5 | 32/28 |
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Datasheet
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