Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With auxiliary lenses movable in and out of the optical path
Patent
1995-06-26
1997-05-13
Dang, Hung
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With auxiliary lenses movable in and out of the optical path
351 41, 351158, 348 53, G02C 708, G02C 100, H04N 1300
Patent
active
056297467
ABSTRACT:
Fiber-optic imaging bundles are used to transfer images of an object from an objective lens to a eyepiece mounted on a portion of the front surface of a spectacle lens. In one embodiment, the image from a single objective lens is split at the eyepiece end of the fiber bundle in order to present the image to both eyes; in another, each eye has its own objective lens, fiber bundle, and eyepiece for true stereo vision; in another, right and left images from two offset objective lens are selectively colored, as by a dichroic filter, and the two colored images are transferred through a single fiber bundle to a color separator.
REFERENCES:
patent: 4613219 (1986-09-01), Vogel
patent: 4907860 (1990-03-01), Noble
patent: 5414459 (1995-05-01), Bullwinkel
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