Noncontact type tonometer

Details Noncontact type tonometer Noncontact type tonometer

1989-04-11

1991-03-19

Green, Randall L.

Surgery

Truss

Pad

128652, 351206, A61B 316

Patent

active

050001817

ABSTRACT:
A noncontact type tonometer has a nozzle for discharging a fluid toward an eye to be tested; an alignment target projecting optical system for projecting an alignment target ray of light in form of parallel pencil of rays toward the eye from the axial direction of the nozzle in order to verify the alignment between the eye and an apparatus body; an illuminating light source for emitting an illuminating light for illuminating the anterior portion of the eye; and an anterior portion observing optical system for observing the anterior portion through an objective lens. The anterior portion observing optical system is commonly used as an alignment target light receiving optical system.

REFERENCES:
patent: 3756073 (1973-09-01), Lavallee et al.

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