Topography measuring apparatus

Details Topography measuring apparatus Topography measuring apparatus

1989-05-04

1991-03-12

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351247, A61B 310

Patent

active

049988190

ABSTRACT:
A contour measuring apparatus and method of using the same is disclosed to measure the three-dimensional contour of a surface. Structure is provided to direct first light beams onto the surface being measured. Reflections of the first light beams from the surface are received for generating electrical output signals corresponding to electro-optically measurable optical images. The output signals are electrically processed to determine the radius of curvature of the surface being measured. A higher spatial resolution can be achieved without changing the spacing of the array of light points.

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