| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an eye ground photographing system which is compact with a simple structure, can be produced at a lower cost, enables easy optical adjustment, and is good in performing simultaneous stereoscopic photographing of the eye ground. <P>SOLUTION: A double-diaphragm 10 equipped with two openings 10a and 10b is disposed at approximately conjugated position to the front ophthalmoscope, and a lenticular prism 15 or a lenticular lens is disposed near the image pickup screen of a stereoscopy CCD 16. The exit pupil position of an imaging lens 12 for imaging the eye ground on the stereoscopy CCD is set to infinity, which makes the luminous flux passing through the imaging lens substantially parallel. Consequently, the light incident into one pixel line of the stereoscopy CCD through the lenticular prism becomes only the light passing through through either one of the two openings of the double-diaphragm, and the light from each opening is made to be alternately incident into each pixel line. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
