Patent US20030107712A1 successfully refreshed from Google Patents.
US20030107712A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable lightfield display
Assignee: New York University
•
Filing: 2002-12-09
•
Granted: —
•
Expires: 2022-12-09
Abstract
Abstract An apparatus for showing images. The apparatus includes a screen. The apparatus includes a mechanism for displaying a distinct and separate image for each of a number of different observers simultaneously on the screen. A method for showing images.
Inventors
- 👤 Kenneth Perlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:31
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/005; H; H04; H04N; H04N13/00; H04N13/30; H04N13/302; H04N13/305; H04N13/307; H04N13/31; H04N13/349; H04N13/363; H04N13/32
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
31 words
1 . An apparatus for showing images comprising: a screen; and means for displaying a distinct and separate image for each of a number of different observers simultaneously on the screen.
Claim 2
Dependent Claim
31 words
1 . An apparatus for showing images comprising: a screen; and means for displaying a distinct and separate image for each of a number of different observers simultaneously on the screen.
Claim 3
Dependent Claim
42 words
2 . An apparatus as described in claim 1 wherein the displaying means displays a distinct and separate image independently for each eye of the number of different observers simultaneously on the screen, so that each observer can see an image stereoscopically.
Claim 4
Dependent Claim
17 words
3 . An apparatus as described in claim 2 wherein the screen is a passive display screen.
Claim 5
Dependent Claim
16 words
4 . An apparatus as described in claim 3 wherein the screen has no moving parts.
Claim 6
Dependent Claim
18 words
5 . An apparatus as described in claim 4 wherein the displaying means includes at least one projector.
Claim 7
Dependent Claim
25 words
6 . An apparatus as described in claim 5 wherein the displaying means includes a virtual slit image disposed between the projector and the observers.
Claim 8
Dependent Claim
16 words
7 . An apparatus as described in claim 6 wherein the projector has no moving parts.
Claim 9
Dependent Claim
28 words
8 . An apparatus as described in claim 4 wherein the displaying means includes a plurality of projectors, with each projector corresponding to each eye of an observer.
Claim 10
Dependent Claim
51 words
9 . An apparatus as described in claim 2 wherein the displaying means displays on the screen a separate and distinct image for each eye of the observers, where each of the observers are at varying distances away from the screen and at varying distances left-to-right with respect to the screen.
Claim 11
Dependent Claim
38 words
10 . An apparatus as described in the claim 3 wherein the screen includes a Fresnal screen layer which receives the image from the displaying means and a nodal lenslet layer that is adjacent the Fresnal screen layer.
Claim 12
Dependent Claim
34 words
11 . An apparatus as described in claim 10 wherein the screen includes a horizontal router layer that is adjacent the nodal lenslets layer, and a vertical diffusion layer adjacent the horizontal router layer.
Claim 13
Dependent Claim
21 words
12 . An apparatus as described in claim 5 wherein the projector comprises a lamp and a condenser adjacent a lamp.
Claim 14
Dependent Claim
62 words
13 . An apparatus as described in claim 12 wherein the projector comprises an illuminator image adjacent the condenser, illuminator image condensers adjacent the illuminator image, relay lenses adjacent to the illuminator image condensers, a spatial light modulator disposed between the illuminator image condensers, and a computer in communication with and in control of the illuminator image and a spatial light modulator.
Claim 15
Dependent Claim
22 words
14 . An apparatus as described in claim 3 wherein the projector includes lenses adjacent the relay lenses and spatial light modulator.
Claim 16
Dependent Claim
35 words
15 . An apparatus as described in claim 14 wherein the spatial light modulator is differently attenuated according to computer-modulated time-varying instructions from the computer so as to form a sequence of images over time.
Claim 17
Dependent Claim
33 words
16 . An apparatus as described in claim 15 wherein the illuminator image is partitioned by the computer into illuminator tiles where each illuminator tile maps into a corresponding region on the screen.
Claim 18
Dependent Claim
26 words
17 . An apparatus as described in claim 2 wherein the displaying means forms a four dimensional lightfield which the screen converts to a three-dimensional lightfield.
Claim 19
Dependent Claim
54 words
18 . A method for showing images comprising the steps of: displaying a first image onto a passive screen oriented for a first eye of an observer to see; and displaying a second image separate and distinct from the first image onto the screen oriented for a second eye of the observer to see.
Claim 20
Dependent Claim
54 words
18 . A method for showing images comprising the steps of: displaying a first image onto a passive screen oriented for a first eye of an observer to see; and displaying a second image separate and distinct from the first image onto the screen oriented for a second eye of the observer to see.
Claim 21
Dependent Claim
67 words
19 . A method as described in claim 18 including the step of displaying a third image separate and distinct from the first and second images onto the screen oriented for a first eye of another observer to see; and displaying a fourth image separate and distinct from the first, second and third images onto the screen oriented for a second eye of another observer to see.
Claim 22
Dependent Claim
47 words
20 . A method as described in claim 19 wherein the displaying a first image step includes the steps of forming a four dimensional lightfield in regard to the image with a projector, and converting the four dimensional lightfield to a three dimensional lightfield with the screen.
References Cited (Backward Citations)
US20030025995A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.