Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2011-06-14
2011-06-14
Hasan, Mohammed (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S205000, C351S208000
Reexamination Certificate
active
07959288
ABSTRACT:
An ophthalmologic imager comprises an illuminating optical system for projecting an illuminating light beam onto an ocular fundus, a light-receiving optical system having a focusing lens and serving to guiding the light reflected from the ocular fundus to an imaging section, and a focusing target projecting optical system having a bar mirror detachably inserted in the optical path of the illuminating optical system and serving to project split focusing target light beams onto the ocular fundus through the bar mirror and the illuminating optical system. A mirror image of the bar mirror is projected onto the ocular fundus by using the illuminating light beam. The ophthalmologic imager further comprises a judging device which judges the sharpness of the contour of the mirror image or the focusing target light imagers from the output of the light-receiving section and judges the focusing state by the focusing lens from the sharpness.
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Kogawa Taisaku
Sugino Yuichi
Foley & Lardner LLP
Hasan Mohammed
Kabushiki Kaisha Topcon
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