US4049339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movie viewing eyeglasses
Assignee: Individual
•
Filing: 1976-02-20
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Granted: 1977-09-20
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Expires: 1996-02-20
Abstract
Abstract Eyeglasses used to provide depth simulation when worn to view a planar picture on a movie screen. The temples and frame of the eyeglasses are made from substantially rectangular opaque plastic and transparent, triangular shaped lenses are positioned in the frame adjacent a nosepiece cut therein. The lens and frame arrangement allow each eye to view the screen except for the corresponding edge thereof so that when the total picture is seen through both eyes the sensation of depth perception is realized.
Inventors
- 👤 Antoine Ledan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
G; G02; G02C; G02C11/00; G02C11/12; G02B; G02B30/00; G02B30/40; G02C7/00; G02C7/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A pair of eyeglasses for use in viewing a movie screen to provide depth simulation comprising: a frame formed from opaque material, having a nose piece, a temple formed from opaque material hingedly connected to each end of said frame, and a pair of transparent, triangular lenses in the plane of said frame on opposite sides of said nosepiece spaced from the ends of said frame connected to said temples.
Claim 2
Dependent Claim
70 words
A pair of eyeglasses for use in viewing a movie screen to provide depth simulation comprising: a frame formed from opaque material, having a nose piece, a temple formed from opaque material hingedly connected to each end of said frame, and a pair of transparent, triangular lenses in the plane of said frame on opposite sides of said nosepiece spaced from the ends of said frame connected to said temples.
Claim 3
Dependent Claim
18 words
A pair of eyeglasses in accordance with claim 1 wherein said lenses are treated to filter different colors.
Claim 4
Dependent Claim
20 words
A pair of eyeglasses in accordance with claim 1 wherein said frame and temples are formed from opaque plastic material.
Claim 5
Dependent Claim
23 words
A pair of eyeglasses in accordance with claim 1 wherein said frame and temples have contiguous portions which are substantially rectangular in shape.
Claim 6
Dependent Claim
22 words
A pair of eyeglasses in accordance with claim 1 wherein said triangular lenses have a bottom angle of between 15° - 22°.
References Cited (Backward Citations)
US1636450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |