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Two-Wavelength Interferometric KeratometerProposed interferometric keratometer measures shapes of corneas without touching them. Used to test strongly aspherical optics. Resembling present commercial lens-testing interferometers, generates interferograms representative of deviation of surfaces under test from sphericity. Such interferograms used to generate contour maps of surfaces. Measures corneal topography to diameters as large as 12 mm.
Document ID
19910000047
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hochberg, Eric (Caltech)
Page, Norman (Caltech)
Date Acquired
August 14, 2013
Publication Date
February 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 2
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-17537
Accession Number
91B10047
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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