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Introducing S-TIH53WN, S-LAH66N, and S-LAL18N: Meeting High-Precision Lens Demands

01.30.2025

S-TIH53WN, S-LAH66N, and S-LAL18N have been modified in dispersion properties compared to conventional glass to meet the demands for high-precision lenses.
Adjustments have been made to the refractive index (excluding d-line), partial dispersion, partial dispersion ratio, abnormal dispersion, and the constants in the dispersion formula to reflect the changes in dispersion characteristics. Other properties remain unchanged.

GLASS Refractive Index nd Abbe Number νd
S-TIH53W 1.84666 23.78
S-TIH53WN 1.84666 23.86
S-LAH66 1.77250 49.60
S-LAH66N 1.77250 49.55
S-LAL18 1.72916 54.68
S-LAL18N 1.72916 54.59

S-TIH53WN detailed data: S-TIH53WN

S-LAH66N  detailed data: S-LAH66N

S-LAL18N  detailed data: S-LAL18N