Vari-lens phoropter and automatic fast focusing infinitely variable focal power lens units precisely matched to varying distances by radar and electronics
First Claim
1. A lens system providing an infinitely variable focal power with a combined measuring system reflecting a readout display comprising:
- a first lens and a second lens each having an inner surface and an outer surface, mounted adjacent to each other with said first lens being a forward lens, closer to an object to be viewed, and said second lens being a rearward lens, further from said object to be viewed;
wherein said first and second lenses inner surfaces are mounted in a juxtaposed relationship with a space formed between said lenses inner surfaces for receiving a transparent fluid medium there between;
a circular reservoir being substantially C-shaped in cross section to contain the transparent fluid medium between said first and second lenses;
said circular reservoir and stablilizer rings connected to said first lens and said second lens by an adhesive;
a set of current connection wires and other components connected to the circular reservoir by said adhesive;
first and second control members in mechanical communication with said forward and rearward lenses respectively, adapted to translate said lenses in forward and rearward directions;
a precision gearing system for manipulating said control members;
an encoder in mechanical communication with said precision gearing system for precision measurement of said lenses; and
a readout device in electrical communication with the encoder and displaying a readout reflecting the movement of said first and second lenses, wherein said precision gearing system comprisesa first shaft for moving the forward lens, the first shaft consisting of a precision gearing device having a driving pinion gear to drive a gear rack attached to the forward lens which in turn drives the first control member; and
a second shaft for moving the rearward lens, mounted substantially parallel to the first shaft and driven by a reduction set of gears connected to said first shaft, said second shaft having a driving pinion gear to drive a gear rack attached to the rearward lens, which in turn drives the second control member;
wherein said first and second control members are translated in a predetermined tandem manner by the precision gearing system, so that said first and second lenses are translated according to a predetermined gear ratio thereby.
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Accused Products
Abstract
This invention will for the first time provide a digital read-out showing the amount of diopters either Positive or Negative with a zero starting point midway between the Positive and Negative dioxter readings. The people having their eyes checked will now be able to communicate in the most accurate way with their eye doctor using an adjustment knob for each eye respectively to obtain the prescription needed. This is achieved through a specially designed lens unit and through the use of direct gear rack drives attached to the movable lenses coupled to an encoder and that is battery powered producing a DC square wave output voltage and fed into a Positive to Negative read-out display Totalizer unit with LED electronic digital read-out that is available with a scaling factor for precise conversion to diopter values for each eye respectively. The Totalizer is a computerized unit with microchip circuitry running on DC battery current which makes the Vari-Lens™ Phoropter unit, portable to be used anywhere in remote areas for the visual impaired. The present invention also offers the automatic fast focusing lens units either for Positive or Negative focal power actuated by newly developed high power magnets in a flexible binder. This will reduce to a minimum the amount of weight for the eyeglasses for common use. This is the greatest development to date in regard to variable focal power lens units and are the only successfully operating units of their kind for the Vari-Lens™ Phoropter and the automatic fast focusing eyeglasses to date.
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Citations
12 Claims
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1. A lens system providing an infinitely variable focal power with a combined measuring system reflecting a readout display comprising:
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a first lens and a second lens each having an inner surface and an outer surface, mounted adjacent to each other with said first lens being a forward lens, closer to an object to be viewed, and said second lens being a rearward lens, further from said object to be viewed; wherein said first and second lenses inner surfaces are mounted in a juxtaposed relationship with a space formed between said lenses inner surfaces for receiving a transparent fluid medium there between; a circular reservoir being substantially C-shaped in cross section to contain the transparent fluid medium between said first and second lenses; said circular reservoir and stablilizer rings connected to said first lens and said second lens by an adhesive; a set of current connection wires and other components connected to the circular reservoir by said adhesive; first and second control members in mechanical communication with said forward and rearward lenses respectively, adapted to translate said lenses in forward and rearward directions; a precision gearing system for manipulating said control members; an encoder in mechanical communication with said precision gearing system for precision measurement of said lenses; and a readout device in electrical communication with the encoder and displaying a readout reflecting the movement of said first and second lenses, wherein said precision gearing system comprises a first shaft for moving the forward lens, the first shaft consisting of a precision gearing device having a driving pinion gear to drive a gear rack attached to the forward lens which in turn drives the first control member; and a second shaft for moving the rearward lens, mounted substantially parallel to the first shaft and driven by a reduction set of gears connected to said first shaft, said second shaft having a driving pinion gear to drive a gear rack attached to the rearward lens, which in turn drives the second control member; wherein said first and second control members are translated in a predetermined tandem manner by the precision gearing system, so that said first and second lenses are translated according to a predetermined gear ratio thereby. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12)
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8. A lens system providing an infinitely variable focal power with a combined measuring system reflecting a readout display comprising:
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a first lens and a second lens each having an inner surface and an outer surface, mounted adjacent to each other with said first lens being a forward lens, closer to an object to be viewed, and said second lens being a rearward lens, further from said object to be viewed; first and second control members in mechanical communication with said forward and rearward lenses respectively, adapted to translate said lenses in forward and rearward directions; a precision gearing system for manipulating said control members; an encoder in mechanical communication with said precision gearing system for precision measurement of said lenses, and a readout device in electrical communication with the encoder and displaying a readout reflecting the movement of said first and second lenses, wherein said precision gearing system comprises a first shaft for moving the forward lens, the first shaft having a pinion gear which drives a gear rack, which in turn drives the first control member; said first shaft also having an additional gear to mate and drive a mating gear on a second shaft in a predetermined constant gear ratio; said second shaft for moving the rearward lens, mounted substantially parallel to the first shaft and driven by said additional gear of said first shaft, said second shaft having a pinion gear which drives a gear rack, which in turn drives the second control member; wherein said first and second control members are translated in a predetermined tandem manner by the precision gearing system, so that said first and second lenses are translated in a predetermined manner thereby. - View Dependent Claims (9, 10, 11)
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Specification