Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Reexamination Certificate
2008-03-11
2008-03-11
Hasan, M. (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
C351S237000
Reexamination Certificate
active
07341349
ABSTRACT:
An optometric apparatus2according to the present invention comprises a body portion5rprovided with an optical system for a right eye for projecting a chart for the right eye in order to inspect visual function of both eye of an examinee and a body portion5lprovided with an optical system for a left eye for projecting a chart for the left eye, the optical systems for the right and left eyes projecting the same fusion patterns to perform fusion of the both eyes of the examinee.
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patent: 5444504 (1995-08-01), Kobayashi et al.
patent: 5483305 (1996-01-01), Kohayakawa
patent: 5629748 (1997-05-01), Hayashi et al.
patent: 6244713 (2001-06-01), Hayashi
patent: 3176669 (2001-04-01), None
Fukuma Yasufumi
Hayafuji Mineki
Hayashi Masakazu
Hayashi Takefumi
Ikezawa Yukio
Chapman and Cutler LLP
Hasan M.
Kabushiki Kaisha Topcon
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