H-ZF75A, the infractive index and abbe number of which is 1.94595, 17.98 respectively has been improved in pressing performance on base of H-ZF75, and it has gone into production stage. An product patent authorization has also been obtained.
This product is comparable to HOYA's FDS18, CDGM's H-ZF88. The low local dispersive power can correct chromatic aberration together with abnormal dispersion glass in low refractive index and low dispersion field. It can be cutted, secondarily pressed to what you want. Our company has developed corresponding pressing process and can give matched technological guidance.