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An optical glass with high partial dispersion ratios θg
S-FPM4 is an optical glass with high partial dispersion ratios θg, F in the FPM region. The material is very useful for polished lenses that are effective for secondary chromatic aberration correction and these characteristics make it ideal for use in a wide range of applications, such as interchangeable photographic and broadcast lenses as well as automotive lenses. (maximum THK is 35mm)
| Type | Code | nc | nd | nF | ng | vd | s.g. | Coloring |
|---|---|---|---|---|---|---|---|---|
| S-FPM4 | 528765 | 1.52630 | 1.52841 | 1.53321 | 1.53694 | 76.46 | 3.76 | 340/- |
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
