Invention Grant
- Patent Title: Ophthalmic apparatus
- Patent Title (中): 眼科仪器
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Application No.: US12052406Application Date: 2008-03-20
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Publication No.: US07648240B2Publication Date: 2010-01-19
- Inventor: Naoki Nakazawa , Koji Nakajima , Toshifumi Mihashi
- Applicant: Naoki Nakazawa , Koji Nakajima , Toshifumi Mihashi
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Topcon
- Current Assignee: Kabushiki Kaisha Topcon
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2007-074327 20070322
- Main IPC: A61B3/10
- IPC: A61B3/10

Abstract:
An ophthalmic apparatus comprises a projection system in which a pattern member is provided with a predetermined pattern for measuring the shape of the cornea of an eye of a subject, the predetermined pattern is thereby projected on the cornea of the eye of the subject, and an optical observation system in which light flux having a shape of the predetermined pattern emitted from the projection system is reflected at the cornea of the eye of the subject, the eye of the subject is observed by the light reflected by the cornea. A surface at the eye of the subject side of the pattern member is coated with a paint having a filtering property that transmits infrared light and blocks visible light.
Public/Granted literature
- US20080231806A1 OPHTHALMIC APPARATUS Public/Granted day:2008-09-25
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