07477451 is referenced by 4 patents and cites 35 patents.

Optical devices and methods for providing wide field magnification to assist the visually impaired, and others, are provided. The optical device includes a plurality of telescopic lens sets, for example, a plurality of telescopes, each telescopic lens set including an objective lens and an ocular lens, and a plurality of refracting optical elements, for example, prisms, positioned in front of at least some of the objective lenses. The refracting optical elements are adapted to at least partially redirect light rays toward at least some of the objective lenses to provide wider fields of view, for example, a wider contiguous field of view. Aspects of the invention can provide fields of view up to 40 degrees or more. These wider fields of view can greatly enhance the visual acuity of the visually impaired, as well as provide wider fields of view for non-corrective purposes, such as for field observations.

Devices and methods for providing wide field magnification
Application Number
Publication Number
7477451 (B2)
Application Date
November 18, 2004
Publication Date
January 13, 2009
Milton Katz
New York
Heslin Rothenberg Farley & Mesiti P C
The Research Foundation Of State University Of New York
G02B 23/00
G02B 25/00
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