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LIGHT PROJECTION TARGET MIRE FOR CURVATURE MEASUREMENTS

OfficeWIPO
Document type:Patent
Inventor(s): Liliane Ventura; Cassius Riul
Applicant:Cassius Riul; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Liliane Ventura
Year: 2005
Application Number:PCT/BR2005/000059
IPC: A61B 3/107
Abstract

The present invention refers to the light ring target mire (8) used for accurate measuring of the radii of curvature of spherical and non spherical reflective surfaces, with a fixation target for the patient, holes that allow the observation by the slit lamp (7), holes to be illuminated (4), using an illumination system composed by a header which has an exit lens from the illumination system, focused filament, an intermediary circle and a light stop with an useful area for the target mire, being alternatively projected with arc shaped rings, or passing through rings in a precise circumlinear shape, allowing to be used with different types of illumination systems, providing measurements of any reflective surface, not being limited to ocular exams.


FAPESP's process: 00/13218-4 - System of automatic measurement of the cornea's curvature rays with a slit lamp: automatic keratometer with slit lamp
Grantee:Liliane Ventura Schiabel
Principal Investigator:Liliane Ventura Schiabel
Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE

Grantee:Oswaldo Massambani
Principal Investigator:Oswaldo Massambani
Support Opportunities: Research Grants - Support for Intellectual Property Rights and Licensing (PAPI/Nuplitec)