The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1991
Filed:
Oct. 31, 1989
Kouji Nishio, Tokyo, JP;
Hiroshi Iijima, Tokyo, JP;
Kenjiro Katsuragi, Tokyo, JP;
Yoshihiko Hanamura, Tokyo, JP;
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
An ophthalmological instrument for the use of both corneal configuration and intraocular pressure measurement has alignment watching means for watching an alignment completion state upon receipt of an alignment completion signal which is output by alignment detecting means for detecting the alignment of an apparatus body with respect to an eye to be tested, corneal configuration measuring means for projecting a ring target mark onto the cornea of the eye and measuring a corneal configuration with reference to the ring target image, noncontact type intraocular pressure measuring means for discharging fluid toward the cornea in order to transfigure the cornea and measuring the intraocular pressure with reference to the amount of such transfiguration, and automatic executing means for executing the corneal configuration and intraocular pressure measurements in such a manner as that data of the ring target image is intaken in accordance with output of the alignment watching means in order to obtain data regarding the corneal configuration and thereafter checking whether the alignment completion state is maintained and if affirmative, automatically starting a fluid discharge onto the cornea.