Method for determining refractive index of an object

Details Method for determining refractive index of an object Method for determining refractive index of an object

1985-04-15

1986-12-30

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351212, 356128, 356382, A61B 310, G01N 2141

Patent

active

046325280

ABSTRACT:
Method for determining a refractive index of an object in which the object is illuminated with a slit pattern of illumination light to form an optical section of the section of the object and the optical section is observed in two directions to determine apparent thickness of the optical section in these directions. Operations are carried out to obtain the refractive index of the object from the apparent thickness of the optical section.

REFERENCES:
patent: 4019813 (1977-04-01), Cornsweet et al.
patent: 4176937 (1979-12-01), Kawase
D. M. Maurice and A. A. Giardini, "A Simple Optical Apparatus for Measuring the Corneal Thickness, and the Average Thickness of the Human Cornea" British Journal of Opthamology, vol. 35 pp. 169-177.

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