Proposed keratometer based on scheme involving spectral dispersal of white-light interference fringes. Instrument operates in "snapshot" mode: no scanning necessary, not necessary to immobilize patient's eye. Insensitive to vibration, involves no phase shifting, and has variable sensitivity. Intended primarily for use in medical assessments of human corneas, also used to measure shapes of animal corneas, lenses, and other aspherical or spherical reflective or partly reflective surfaces.
White-Light, Dispersed-Fringe Interferometric Keratometer
NASA Tech Briefs ; 16 , 2
1992-02-01
Miscellaneous
No indication
English
NTRS | 1988
|NTRS | 1991
|Neural Networks in Interferometric Fringe Analysis
British Library Conference Proceedings | 1994
|Phase-Crossing Algorithm for White-Light Fringe Analysis
IEEE | 2005
|An Alternative to White Light Interferometric Sensing
British Library Online Contents | 1995
|