Ophthalmic apparatus
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United States of America Patent
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Jan 19, 2010
Grant Date -
Sep 25, 2008
app pub date -
Mar 20, 2008
filing date -
Mar 22, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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