| 发明名称 |
EYE VIEWING DEVICE FOR RETINAL VIEWING THROUGH UNDILATED PUPIL |
| 摘要 |
The invention is a low cost, low input power eye viewing device well suited for viewing wide field retinal images through an undilated pupil. Included in the device are a converging light illumination system and an aperture stop. The converging light illumination system provides ease of entry of light rays into an eye, wide field retinal illumination, reduced glare and reduced power consumption. The aperture stop blocks unwanted received glare light not forming part of the retinal image. The device is made especially well suited for retinal viewing through an undilated pupil if the aperture is sized in accordance with the diameter of an undilated pupil.
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| 申请公布号 |
WO0030527(A8) |
申请公布日期 |
2001.12.13 |
| 申请号 |
WO1999US27857 |
申请日期 |
1999.11.23 |
| 申请人 |
WELCH ALLYN, INC. |
发明人 |
GOLDFAIN, ERVIN;LAGERWAY, WILLIAM;ROBERTS, CHRIS, R.;SLAWSON, STEVEN, R.;KRAUTER, ALLAN, I. |
| 分类号 |
A61B3/14;A61B3/13;A61B3/15;(IPC1-7):A61B3/13;A61B3/12 |
主分类号 |
A61B3/14 |
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