US3731996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animated display system
Assignee: Individual
•
Filing: 1971-12-27
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Granted: 1973-05-08
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Expires: 1991-12-27
Abstract
Abstract A system for animating a picture illuminated by a light source. The system includes a rotary sheet of material having linearly oriented molecules and a lens element of optically inactive material angularly positioned in the path of light from said light source for producing the animation.
Inventors
- 👤 A Siksai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:21
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132; G03B15/00; G03B15/08; G09; G09F; G09F19/00; G09F19/12; G09F19/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
71 words
An animated display system comprising a light source, a picture positioned to be illuminated by said light source, and means in the path of light from said light source for animating said picture, said means characterized by a single layer or sheet of light-polarized material and comprising a rotary sheet of birefringent-like material, and a layer of optically inactive material positioned at an acute angle relative to the light passing therethrough.
Claim 2
Dependent Claim
71 words
An animated display system comprising a light source, a picture positioned to be illuminated by said light source, and means in the path of light from said light source for animating said picture, said means characterized by a single layer or sheet of light-polarized material and comprising a rotary sheet of birefringent-like material, and a layer of optically inactive material positioned at an acute angle relative to the light passing therethrough.
Claim 3
Dependent Claim
31 words
The animated display system as defined in claim 1 wherein said layer of optically inactive material is adjustable to vary said acute angle whereby the intensity of animation can be varied.
Claim 4
Dependent Claim
16 words
The animated display system as defined in claim 1 wherein said acute angle is about 36*.
Claim 5
Dependent Claim
14 words
The invention as defined in claim 1 wherein said layer is made of glass.
Claim 6
Dependent Claim
15 words
The invention as defined in claim 1 wherein said layer is made of plastic material.
Claim 7
Dependent Claim
46 words
The invention as defined in claim 1 including a plurality of layers of optically inactive material forming a lens element generally defining a plane substantially perpendicular to said light path, each of said layers being positioned at said acute angle relative to the path of light.
Claim 8
Dependent Claim
26 words
The invention as defined in claim 6 wherein the acute angle of each of said layers relative to said light path is less than about 45*.
Claim 9
Dependent Claim
29 words
The invention as defined in claim 7 wherein said layers form a corrugated lens element with each layer positioned at an angle relative to the layers immediately adjacent thereto.
Claim 10
Dependent Claim
37 words
The invention as defined in claim 1 including a projector having said light source as a component thereof, and wherein said picture is a transparency mounted on the projector in position to be projected on a surface.
Claim 11
Dependent Claim
69 words
An animated projection display system comprising a projector for projecting a picture on a surface, and means in the path of light of said projector for animating said picture, said means characterized by a single sheet of light-polarizing material and comprising a rotary sheet of birefringent-like material, and a lens element having a layer of optically inactive material positioned at an acute angle relative to the light passing therethrough.
Claim 12
Dependent Claim
69 words
An animated projection display system comprising a projector for projecting a picture on a surface, and means in the path of light of said projector for animating said picture, said means characterized by a single sheet of light-polarizing material and comprising a rotary sheet of birefringent-like material, and a lens element having a layer of optically inactive material positioned at an acute angle relative to the light passing therethrough.
Claim 13
Dependent Claim
26 words
The system as defined in claim 10 wherein said lens element is adjustable to vary said acute angle whereby the intensity of animation can be varied.
Claim 14
Dependent Claim
14 words
The system as defined in claim 10 wherein said acute angle is about 36*.
Claim 15
Dependent Claim
46 words
The invention as defined in claim 10 including a plurality of layers of optically inactive material forming a lens element generally defining a plane substantially perpendicular to said light path, each of said layers being positioned at said acute angle relative to the path of light.
Claim 16
Dependent Claim
30 words
The invention as defined in claim 13 wherein said layers form a corrugated lens element with each layer positioned at an acute angle relative to the layers immediately adjacent thereto.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |