06939006 is referenced by 5 patents and cites 222 patents.

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.

Title
Eye viewing device for large field viewing
Application Number
10/337588
Publication Number
6939006 (B2)
Application Date
January 7, 2003
Publication Date
September 6, 2005
Inventor
Allan I Krauter
Skaneateles
NY, US
Steven R Slawson
Camillus
NY, US
Chris R Roberts
Skaneateles
NY, US
William Lagerway
Auburn
NY, US
Ervin Goldfain
Syracuse
NY, US
Agent
Wall Marjama & Bilinski
Assignee
Welch Allyn
NY, US
IPC
A61B 003/00
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