Title:
【発明の名称】物体をマッピングする装置および方法
Document Type and Number:
Japanese Patent JPH10500033
Kind Code:
A
Abstract:
This invention provides a method and apparatus for mapping the surface of an object, in particular, a transparent object such as anterior and posterior surfaces of a patient's cornea, in a clinically useful time using a single optical system. In a preferred embodiment, a pattern generator projects a pattern of light and dark areas onto a patient's cornea, and a light detector receives patterns reflected from the anterior and posterior surfaces of the cornea. A mapping means generates a three-dimensional map of the anterior and posterior corneal surfaces from information regarding the projected and detected light patterns. The invention can be used to map other transparent objects such as a contact lens or an intraocular device, e.g., an intrastromal ring. The invention can also be used to map the surface of an opaque object.
Inventors:
Kuhn, William Pea.
Baker, Philip Sea.
Baker, Philip Sea.
Application Number:
JP52249895A
Publication Date:
January 06, 1998
Filing Date:
February 24, 1995
Export Citation:
Assignee:
Keravision, Incorporated
International Classes:
G01B11/24; A61B3/10; A61B3/107; A61B3/12; G01B11/255; G02C13/00; (IPC1-7): A61B3/12; A61B3/10; G01B11/24
Attorney, Agent or Firm:
Shusaku Yamamoto