Optical Glass Type S-LAL18N – For High Precision Lenses
| Type | Code | nc | nd | nF | ng | vd | s.g. | Coloring |
|---|---|---|---|---|---|---|---|---|
| S-LAL18N | 729546 | 1.72509 | 1.72916 | 1.73845 | 1.74572 | 54.59 | 4.18 | {365)/280 |
S-LAL18N has 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.
S-TIH53WN and S-LAH66N have also been modified for the demands of high precision lenses.
Ohara Corporation Western Office
23141 Arroyo Vista, Suite 200
Rancho Santa Margarita, CA 92688
TEL: (949) 858-5700
FAX: (949) 585-5455
Ohara Corporation Eastern Office
50 Columbia Road, Branchburg
New Jersey 08876-3519
TEL: (908) 218-0100
FAX: (908) 218-1685
