US3875934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for training ocular muscles
Assignee: Individual
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Filing: 1974-03-20
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Granted: 1975-04-08
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Expires: 1994-03-20
Abstract
Abstract A device for training ocular muscles which comprises eye and object means so mounted that they may be moved between the nearest and the farthest positions by a driving means to reciprocally change the distance between them, and prism means mounted in front of said object lens means in such fashion that the prism means may cross the optical axis of the object lens means and that it may be rotated by said driving means accompanied with the change of the distance between the lens means. The image of an object viewed through the eye lens means continuously move along the optical axis and in the traverse, so that ocular muscles may be trained by viewing the moving image.
Inventors
- 👤 Kazukiyo Sadanaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:27
CPC Classifications
A; A61; A61H; A61H5/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
160 words
A device for training ocular muscles comprising a housing having a pair of windows in a first wall thereof, a pair of eye lens means mounted in a secured wall of said housing opposite to said first wall, each eye lens means facing one of said windows respectively, a pair of prism means each of which is respectively disposed in said housing between each opposed set of window and lens means in the vicinity of each window, first driving means in said housing for continuously moving said pair of prism devices in such manner that the light transmission direction through each of said prism means is varied, a pair of object lens means, each of which is disposed respectively between each opposed set of prism means and eye lens means, second driving means in said housing for continuously and reciprocally moving said pair of object lens means, and a driving power source for actuating said first and second driving means.
Claim 2
Independent Claim
160 words
A device for training ocular muscles comprising a housing having a pair of windows in a first wall thereof, a pair of eye lens means mounted in a secured wall of said housing opposite to said first wall, each eye lens means facing one of said windows respectively, a pair of prism means each of which is respectively disposed in said housing between each opposed set of window and lens means in the vicinity of each window, first driving means in said housing for continuously moving said pair of prism devices in such manner that the light transmission direction through each of said prism means is varied, a pair of object lens means, each of which is disposed respectively between each opposed set of prism means and eye lens means, second driving means in said housing for continuously and reciprocally moving said pair of object lens means, and a driving power source for actuating said first and second driving means.
Claim 3
Independent Claim
208 words
A device for training ocular muscles comprising a housing having a pair of windows in a first wall thereof, a pair of eye lens means mounted in a second wall of said housing opposite to said first wall such that each eye lens means respectively faces one window, a pair of prism means each of which is rotatably disposed in said housing between each opposed set of window and eye lens means in the vicinity of each window, a pair of object lens means each of which is disposed for sliding on its optical axis between each opposed set of prism means and eye lens means respectively, biasing means for forcing each object lens means towards each eye lens means, cam means engaging with each object lens means for continuously moving said object lens means by rotation thereof in cooperation with said biasing means, rack means disposed to move with the movement of said respective object lens means, pinion means disposed to engage with said rack means, gear means connected with said pinion means and engaged with teeth provided to peripheries of said prism means to rotate said prism means, an electric motor, and rotation transporting means to transfer the rotation of said electric motor to said cam.
Claim 4
Independent Claim
208 words
A device for training ocular muscles comprising a housing having a pair of windows in a first wall thereof, a pair of eye lens means mounted in a second wall of said housing opposite to said first wall such that each eye lens means respectively faces one window, a pair of prism means each of which is rotatably disposed in said housing between each opposed set of window and eye lens means in the vicinity of each window, a pair of object lens means each of which is disposed for sliding on its optical axis between each opposed set of prism means and eye lens means respectively, biasing means for forcing each object lens means towards each eye lens means, cam means engaging with each object lens means for continuously moving said object lens means by rotation thereof in cooperation with said biasing means, rack means disposed to move with the movement of said respective object lens means, pinion means disposed to engage with said rack means, gear means connected with said pinion means and engaged with teeth provided to peripheries of said prism means to rotate said prism means, an electric motor, and rotation transporting means to transfer the rotation of said electric motor to said cam.
Claim 5
Dependent Claim
37 words
The device for training ocular muscles claimed in claim 2, in which each of said prism means has two superimposed prism pieces, each prism piece being a transparent circular plate having the shape of a cylindrical trapezoid.
Claim 6
Dependent Claim
39 words
The device for training ocular muscles claimed in claim 3, in which each prism piece is supported in a ring body, said ring body having teeth on its periphery engaging with said gear means connected to said pinion means.
Claim 7
Dependent Claim
38 words
The device for training ocular muscles claimed in claim 4, in which each of said pair of eye lens means consists of a concave lens, each of said pair of object lens means consisting of a convex lens.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |