Patent US4116540A successfully refreshed from Google Patents.
US4116540A
Expired / Lapsed
US
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Non-perverting mirror
Assignee: Individual
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Filing: 1976-06-25
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Granted: 1978-09-26
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Expires: 1996-06-25
Abstract
Abstract A mirror for providing non-perverted images of an object comprising a reflecting surface having a concave and convex intersecting region such as that formed by an inner section of a torus.
Inventors
- 👤 David E. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:58
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B5/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
49 words
A mirror for providing a non-perverted visual image of an object comprising a light reflecting surface for reflecting visible light and having at least one intersecting concave and convex region substantially forming a continuous, unitary surface, said intersecting concave and convex region substantially forming a section of a toroid.
Claim 2
Dependent Claim
49 words
A mirror for providing a non-perverted visual image of an object comprising a light reflecting surface for reflecting visible light and having at least one intersecting concave and convex region substantially forming a continuous, unitary surface, said intersecting concave and convex region substantially forming a section of a toroid.
Claim 3
Dependent Claim
23 words
A mirror as recited in claim 1 wherein said section of a toroid is a section facing toward the center of said toroid.
Claim 4
Dependent Claim
13 words
A mirror as recited in claim 2 wherein said toroid is a torus.
Claim 5
Dependent Claim
20 words
A mirror as recited in claim 3 wherein said intersecting concave and convex regions are generally orthogonal to one another.
Claim 6
Dependent Claim
22 words
A mirror as recited in claim 1 wherein said intersecting concave and convex regions intersect substantially at right angles to one another.
Claim 7
Dependent Claim
35 words
A mirror as recited in claim 1 wherein said concave region has a radius of curvatures R E and said convex region has a radius of curvature R X and R X ≧R E .
Claim 8
Dependent Claim
13 words
A mirror as recited in claim 6 wherein R X >R E .
Claim 9
Dependent Claim
20 words
A mirror as recited in claim 1 wherein said mirror has a plurality of spacially coincident concave and convex curvatures.
Claim 10
Dependent Claim
18 words
A mirror as recited in claim 8 wherein said mirror is in the form of a monkey saddle.
Claim 11
Independent Claim
60 words
A method of forming a non-perverted visual image of an object comprising the steps of: (a) reflecting a visible light incident wavefront from a surface having a concave region, and (b) simultaneously reflecting said visible light incident wavefront from a convex surface region coincident with said concave region, said convex and concave region substantially forming a section of a toroid.
Claim 12
Independent Claim
60 words
A method of forming a non-perverted visual image of an object comprising the steps of: (a) reflecting a visible light incident wavefront from a surface having a concave region, and (b) simultaneously reflecting said visible light incident wavefront from a convex surface region coincident with said concave region, said convex and concave region substantially forming a section of a toroid.
Claim 13
Dependent Claim
39 words
Apparatus for forming non-perverted visual images and rotating same comprising: (a) a visible light reflecting surface having spacially coincident concave and convex curvatures, and (b) means for rotating said reflecting surface whereby said non-perverted image is formed and rotated.
Claim 14
Dependent Claim
39 words
Apparatus for forming non-perverted visual images and rotating same comprising: (a) a visible light reflecting surface having spacially coincident concave and convex curvatures, and (b) means for rotating said reflecting surface whereby said non-perverted image is formed and rotated.
Claim 15
Dependent Claim
15 words
Apparatus as recited in claim 11 wherein said reflecting surface is an integral, continuous surface.
Claim 16
Dependent Claim
18 words
Apparatus as recited in claim 12 wherein said reflecting surface has m nodes where m is an integer.
Claim 17
Dependent Claim
29 words
Apparatus as recited in claim 12 wherein said mirror rotates by an amount (m - 1/m) X to produce a rotation of said non-perverted image by an amount X.
Claim 18
Dependent Claim
47 words
A mirror for providing a non-perverted visual image of an object comprising a light reflecting surface for reflecting visible light wherein said reflecting surface has m nodes wherein each node corresponds to an intersecting concave and convex region and wherein m is an integer greater than 2.
Claim 19
Dependent Claim
47 words
A mirror for providing a non-perverted visual image of an object comprising a light reflecting surface for reflecting visible light wherein said reflecting surface has m nodes wherein each node corresponds to an intersecting concave and convex region and wherein m is an integer greater than 2.
Claim 20
Dependent Claim
19 words
A mirror as recited in claim 15 wherein said intersecting concave and convex regions form sections of a toroid.
Claim 21
Dependent Claim
13 words
A mirror as recited in claim 16 wherein said toroid is a torus.
Claim 22
Dependent Claim
41 words
A mirror as recited in claim 17 wherein said concave region has a radius of curvature R E and said convex region has a radius of curvature R X and R X is greater than or equal to R E .
Claim 23
Independent Claim
98 words
A device for providing a non-perverted, non-distorted visual image of an object comprising: (a) a mirror surface for reflecting visible light, (b) said surface having at least one intersecting concave and convex region, (c) said intersecting concave and convex regions disposed generally othogonal to one another and substantially forming part of a toroid, (d) said concave region of said mirror surface reflecting a non-perverted visual image of the object, and (e) said convex region of said mirror surface compensating for distortions in said reflected non-perverted image, whereby said mirror surface reflects a non-perverted, non-distorted image of said object.
Claim 24
Independent Claim
98 words
A device for providing a non-perverted, non-distorted visual image of an object comprising: (a) a mirror surface for reflecting visible light, (b) said surface having at least one intersecting concave and convex region, (c) said intersecting concave and convex regions disposed generally othogonal to one another and substantially forming part of a toroid, (d) said concave region of said mirror surface reflecting a non-perverted visual image of the object, and (e) said convex region of said mirror surface compensating for distortions in said reflected non-perverted image, whereby said mirror surface reflects a non-perverted, non-distorted image of said object.
Claim 25
Dependent Claim
13 words
A device as recited in claim 19 wherein said toroid is a torus.
References Cited (Backward Citations)
US3255453A
Cited
US4035064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |