Flat, hands-free, convertible keplerian binoculars
AssigneeAlexander Elkind
InventorSolomon Elkind
Life of this patent
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Abstract
Binoculars which are flat in the direction of view include two powerful Keplerian telescopes placed in two flat containers covering each eye and held by an eyeglass frame resting on the nose and ears; the binoculars can be easily converted into magnifying reading eyeglasses by touching a knob on the temple side of each telescope.
Claims12
Binoculars which are generally flat in a direction of view, comprising two Keplerian telescopes in two flat containers attached to a spectacle frame, each said telescope is to be located in front of an eye socket of a user, each said telescope includes an objective and an eyepiece and has a folded optical path directed by four planar mirrors between the objective and the eyepiece, each said telescope has an entrance planar mirror turned at 45 degrees to a vision axis of the user, each said telescope has a means for selectively inserting and removing a converting lens into and from the optical path between the objective and the eyepiece in order to allow a user to convert said binoculars into reading magnifying eyeglasses without changing the magnification.
Binoculars which are generally flat in a direction of view, comprising two Keplerian telescopes in two flat containers attached to a spectacle frame, each said telescope is to be located in front of an eye socket of a user, each said telescope includes an objective and an eyepiece and has a folded optical path directed by four planar mirrors between the objective and the eyepiece, each said telescope has an entrance planar mirror turned at 45 degrees to a vision axis of the user, and a lens mounted between the objective and the eyepiece for providing close vision.
Dependencies are inferred from the claim text.