Patent №
US 4,764,006
Granted
1988-08-16
Filed 1986
Owner
CANON KABUSHIKI KAISHA, A CORP. OF JAPAN
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06906271
An ophthalmic measuring apparatus has an ultrasonic detector for measuring the length of a predetermined region of an eye to be examined, a device provided with a center axis coaxial with the center axis of the vibrator of the ultrasonic detector and projecting an index mark onto the cornea of the eye to be examined, and an imaging optical system for forming the corneal reflection image of the index mark on a predetermined image plane to measure the shape of the cornea.
AI classification
Ownership
CANON KABUSHIKI KAISHA, A CORP. OF JAPAN
assignment · 45990511
Assignors
HAMANO, YOSHIMASA, MASUDA, TAKASHI
On an employer assignment, the assignors are typically the inventors.