Apparatus for measuring curvature

Details Apparatus for measuring curvature Apparatus for measuring curvature

1986-01-14

1988-09-13

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351247, 356376, A61B 310

Patent

active

047705230

ABSTRACT:
Apparatus for measuring curvature of an object automatically is so composed to guide two radiation beams reflected by the object to a linear image sensor, and determine the curvature of the object from the signals obtained from the linear image sensor, in response to the distance of two radiation beams on the sensor. The apparatus is further provided with an image rotator between means for generating two radiation beams and the object.

REFERENCES:
patent: 4019813 (1977-04-01), Cornsweet et al.
patent: 4315672 (1982-02-01), Muller et al.
patent: 4439025 (1984-03-01), Smirmaul
patent: 4440477 (1984-04-01), Schachar
patent: 4540254 (1985-09-01), Humphrey
patent: 4572628 (1986-02-01), Nohda
patent: 4597648 (1986-07-01), Feldon et al.
patent: 4606623 (1986-08-01), Schachar

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