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Optical glass type S-FPM4: high partial dispersion ratios.
| 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/- |
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)
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
