Ophthalmoscope
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United States of America Patent
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Jul 19, 2016
Grant Date -
May 12, 2016
app pub date -
Mar 18, 2015
filing date -
Nov 6, 2014
priority date (Note) -
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Abstract
An ophthalmoscope comprises an illumination element providing an illumination light beam to illuminate the fundus of an eyeball; an imaging lens group converging the reflected light beam from the fundus; and an image capture module. The image capture module includes an image sensing element, a fixation light element and an optical element. The image sensing element captures the reflected light beam converged by the imaging lens group to form an image. The fixation light element provides a fixation light beam passing through the imaging lens group and reaching the fundus. The optical element is arranged among the imaging lens group, image sensing element and fixation light element to make the image sensing element and the fixation light element on different equivalent focal planes of the imaging lens group. According to the above-mentioned structure, a relay lens and a focusing module used by the conventional fixation light element is omitted.
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