摘要:
Mirrorized compartments for extending a diver's vertical, lateral and posterior fields of vision. The mirrorized compartments are clamped on opposite sides of the diving mask and have mirrorized surfaces which reflect light rays entering the compartments from objects above, below, the sides or rear of the mask into a diver's view. In a first aspect of the invention, the mirrorized surfaces are fixed to provide supplementary lateral and posterior fields of vision of fixed amounts. In a second aspect of the invention, the mirrorized surfaces are rotatable about horizontal axes to provide supplementary vertical or lateral and posterior fields of vision in varying amounts. In a third aspect of the invention, the mirrorized surfaces are on members which are rotatable with spherical joints to provide supplementary vertical, lateral and posterior fields of vision in varying amounts.
摘要:
An optical device that reflectively superimposes a virtual image of an object viewed in one direction on a transparent lens member through which a second object may simultaneously be viewed in a second direction. The optical device comprises a transparent member and reflecting member adapted to reflect the image of an object onto the transparent member where it may be viewed by a person looking through the transparent member at another object. The reflecting member preferably is adapted to receive the face of the person utilizing the device and defines a nose bridge and cheekbone pockets for that purpose.
摘要:
A pair of rotatable optical image deflector assemblies is disclosed which are detachably mounted via an adapter bracket to a conventional eye testing apparatus. Each optical image deflector assembly has a fixed light reflecting optical element, and a pivotal reflecting optical element. The optical image deflector assembly directs light onto a peripheral area of a visually sensitive or functional area of the retina which is normal to the central field of the retina. The pivotal optical element scans a pre-set field expanding test chart and projects an image thereof to the visually sensitive or functional area of the retina. The optical image deflector assembly is usable in making prismatic eye glasses to expand the normal central field of view of a person suffering from retinitis pigmentosa or hemianopia. The prismatic eye glasses refract images from a field outside the normal central field of view within and long the peripheral edge of the visually sensitive central area of the retina for expanding the normal central field of view.
摘要:
A lightweight optical system is provided for enabling a person wearing such system to transpose viewed images. The apparatus comprises a removable, elongated, lighter than glass prism mounted in a lightweight frame which fits snugly on the face and is secured by a strap. The frame includes light occluding elements which prevent substantially all untransposed light from entering the eyes of the wearer.
摘要:
An adjustable Pd lens frame carries a pair of prism lenses is adjustably positioned to a normal stationary position with respect to a computer monitor screen. The lenses provide "base in" for each eye and plus optical power to reduce both accommodative demand and convergence demand.
摘要:
A rearview mirror is connected to a frame for the eyewear, the rearview mirror being movable between a use position spaced from the frame and a storage position juxtaposed to the frame. A seat is defined in the frame so that the mirror is receivable in that seat when in the storage position, thereby tending to minimize breakage of the device upon inadvertent contact with a user's hand or clothing when the mirror is stored.
摘要:
Eyeglasses with rear view capability wherein the external portion of at least one lens and/or of the rim is replaced by a rear view mirror part which is pivotally coupled to the lens and/or the rim and has the same shape and dimension of the replaced portion of the lens and/or the rim. Preferably the rear view mirror parts are placed above the horizon line of the view of the user who can adjust the position of the rear view mirror parts by hand according to any desired inclination.
摘要:
A lightweight optical system is provided for enabling a person wearing such system to transpose viewed images. The apparatus comprises a removable, elongated, lighter than glass prism mounted in a lightweight frame which fits snugly on the face and is secured by a strap. The frame includes light occluding elements which prevent substantially all untransposed light from entering the eyes of the wearer.
摘要:
An integral rear view mirror for eyeglasses comprises an elongated channel formed within at least one temple piece of the eyeglass which supports an elongated rod having an upwardly extending tab. A notch is formed within the elongated channel and serves to lock the rod in a withdrawn position. The outwardly extending end of the rod supports a hinged attachment to a rear view mirror. A spring captivated within the channel urges the rod to the forward position. The mirror is rotatable between a downwardly extending in use position and an upwardly extending position when not being used. In addition, the mirror is rotatable to a position overlaying the most proximate lens of the eyeglasses to facilitate easy carrying of the glasses in the folded position.
摘要:
A method is provided for aiding the vision of an individual with a visual field loss. The method is practiced by the steps of mounting a prism with its base in the direction of the visual field loss within one lens of a pair of glasses and an individual wearing the glasses.