Patent US4402580A successfully refreshed from Google Patents.
US4402580A
Expired / Lapsed
US
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Optical exercising device
Assignee: Individual
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Filing: 1980-07-31
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Granted: 1983-09-06
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Expires: 2000-07-31
Abstract
Abstract An optical testing and exercising device including a stereo film viewer having a pair of eyepieces and one or more lenses which can be interposed along the user's line of sight to change the apparent distance of an image. The viewer also includes a housing with a pair of juxtaposed eyepieces and an opening to receive a film having a series of frames bearing images to be viewed. A frame advancing mechanism advances successive frames of the film into the line of sight of the device for viewing by the user through the juxtaposed eyepieces. The frame advancing mechanism also changes one or more lenses mounted in the housing between the eyepieces and the film receiving opening into the viewer's line of sight. The interposed lenses can be utilized for various effects, such as to change the apparent distance of the image from the viewer, thus causing the eye muscles to be exercised. Various combinations of lenses and images can be used with the device to test for many types of vision functions such as suppression, accommodation, acuity, phoria, and color vision.
Inventors
- 👤 Richard Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:41
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; A; A61; A61B; A61B3/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
106 words
An eye testing/training device, comprising: a housing; a pair of side by side viewing openings in said housing; means for mounting in said housing in the line of sight of said openings a film having a series of frames bearing images to be viewed; a frame advancing mechanism for advancing successive frames to be viewed before said openings; at least one movably mounted lens in said housing generally between said film mounting means and said openings; and means operatively connecting said frame advancing mechanism to said movably mounted lens for moving said lens resulting in a change in the characteristics of the image to the user.
Claim 2
Dependent Claim
106 words
An eye testing/training device, comprising: a housing; a pair of side by side viewing openings in said housing; means for mounting in said housing in the line of sight of said openings a film having a series of frames bearing images to be viewed; a frame advancing mechanism for advancing successive frames to be viewed before said openings; at least one movably mounted lens in said housing generally between said film mounting means and said openings; and means operatively connecting said frame advancing mechanism to said movably mounted lens for moving said lens resulting in a change in the characteristics of the image to the user.
Claim 3
Dependent Claim
36 words
The orthoptic device of claim 1 having a pair of juxtaposed viewing barrels and a means for interposing a left stereoscopic film frame before one barrel and a right stereoscopic film frame before the other barrel.
Claim 4
Dependent Claim
33 words
The orthoptic device of claim 2 having a rotating frame advancing mechanism and cam members attached to said mechanism which engage said film to index successive frames of said film before said openings.
Claim 5
Dependent Claim
39 words
The orthoptic device of claim 3 wherein said frame advancing mechanism is a flat plate having a lever extending outwardly thereof, said plate adapted to engage a circular slide plate bearing a plurality of frames arranged around its periphery.
Claim 6
Dependent Claim
15 words
The orthoptic device of claim 1 wherein said lens is removably mounted in said housing.
Claim 7
Dependent Claim
39 words
The orthoptic device of claim 1 wherein said lens is mounted on at least one support, said support mounted for rotation within said housing to move said lens into and out of the line of sight of said openings.
Claim 8
Dependent Claim
59 words
The orthoptic device of claim 6 having two pairs of lenses mounted on said support one pair before each opening, one of said lens of said pair before each opening having a different power value than the other to make the image viewed appear to be at different distances depending on which lenses are in the line of sight.
Claim 9
Dependent Claim
27 words
The orthoptic device of claim 6 or 7 including a gear train operated by said frame advancing mechanism to rotate said support as the frame is advanced.
Claim 10
Dependent Claim
35 words
The orthoptic device of claim 6 said device being a portable stereo viewer having a removable eyepiece in each of said openings and means for mounting stereoscopic left and right slide frames before said eyepieces.
Claim 11
Dependent Claim
23 words
The orthoptic device of claim 1 or 9 including image means on said film in said film mounting means for detecting eye abnormalities.
Claim 12
Dependent Claim
71 words
An improvement in an eye testing stereoviewer having a frame advancing mechanism for advancing successive frames to form an image to be viewed through an eyepiece, said improvement comprising: at least one movably mounted lens between the image and the eyepiece; and means operatively connecting said frame advancing mechanism to said movably mounted lens for moving said lens resulting in a change in the characteristics of the image to the user.
Claim 13
Dependent Claim
71 words
An improvement in an eye testing stereoviewer having a frame advancing mechanism for advancing successive frames to form an image to be viewed through an eyepiece, said improvement comprising: at least one movably mounted lens between the image and the eyepiece; and means operatively connecting said frame advancing mechanism to said movably mounted lens for moving said lens resulting in a change in the characteristics of the image to the user.
Claim 14
Dependent Claim
37 words
The eye testing device of claim 11 having a pair of juxtaposed viewing barrels and a means for interposing a left stereoscopic film frame before one barrel and a right stereoscopic film frame before the other barrel.
Claim 15
Dependent Claim
34 words
The eye testing device of claim 12 having a rotating frame advancing mechanism and cam members attached to said mechanism which engage said film to index successive frames of said film before the eyepieces.
Claim 16
Dependent Claim
16 words
The eye testing device of claim 11 wherein sid lens is removably mounted in said housing.
Claim 17
Dependent Claim
85 words
An eye testing device comprising: a stereoviewer; compatible means for supporting a plurality of film frames for sequential viewing in said stereoviewer; a plurality of paired indicia on said film frames for detecting vision abnormalities of the user; and at least one movably mounted lens interposed in front of said compatible means; and means operatively connecting said compatible means to said movably mounted lens for moving said lens resulting in a change in the characteristics of the frames viewed through said lens by the user.
Claim 18
Dependent Claim
85 words
An eye testing device comprising: a stereoviewer; compatible means for supporting a plurality of film frames for sequential viewing in said stereoviewer; a plurality of paired indicia on said film frames for detecting vision abnormalities of the user; and at least one movably mounted lens interposed in front of said compatible means; and means operatively connecting said compatible means to said movably mounted lens for moving said lens resulting in a change in the characteristics of the frames viewed through said lens by the user.
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) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |