发明名称 |
Tragbares berührungsloses Tonometer |
摘要 |
A hand-held non contact tonometer includes a piston (30) having a transparent plane parallel window (31) normal to a measurement axis (20) of the tonometer along which the piston (30) travels to discharge a fluid pulse without interfering with optical alignment functions of the instrument. In a first embodiment an alignment guidance system utilizing a concave mirror (50) and a target source (52) in a plane containing the center of curvature of the concave mirror (50) present an alignment image to the patient for guiding self-alignment. An infra-red light source (60) at the focal point of the concave mirror (50) irradiates the concave mirror (50) so that a collimated beam is reflected along the measurement axis and focused by an objective lens. <IMAGE> |
申请公布号 |
DE60104735(T2) |
申请公布日期 |
2005.08.25 |
申请号 |
DE2001604735T |
申请日期 |
2001.01.24 |
申请人 |
LEICA MICROSYSTEMS INC., OPHTHALMIC INSTRUMENTS DIVISION |
发明人 |
GROLMAN, BERNARD |
分类号 |
A61B3/10;A61B3/15;A61B3/16;(IPC1-7):A61B3/16 |
主分类号 |
A61B3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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