LaSF
ceramic· LaSF
LaSF is a lanthanum-based heavy flint glass ceramic, engineered for high refractive index and low dispersion optical applications. It is primarily used in precision optics, including camera lenses, microscope objectives, and astronomical instruments, where its optical properties enable designers to reduce chromatic aberration and achieve compact lens assemblies. LaSF is favored over conventional glass in high-performance imaging systems where correction of color fringing is critical and space constraints demand efficient optical design.
precision camera opticsmicroscope objectivesastronomical telescopeslaser opticshigh-performance lens designchromatic aberration correction
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1990 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.509 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 18.82 | - | — | ||
| ↳ | 11.65 range 5.825–17.47median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.341 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.