Patent US5418632A successfully refreshed from Google Patents.
US5418632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for rotational scanner based volume display
Assignee: Raytheon Co
•
Filing: 1994-01-21
•
Granted: 1995-05-23
•
Expires: 2014-01-21
Abstract
Abstract A three dimensional display having a rotating screen, preferably helical in shape, a light source providing a beam of light and a holographic pattern deflecting the beam of light to predetermined points on the screen. The light is modulated, preferably by the holographic pattern. The holographic pattern rotates with the same angular velocity as the screen. The holographic pattern comprises a plurality of concentric circles, each of the circles comprising a plurality of cells, each of the cells representing a point on the screen.
Inventors
- 👤 Douglas W. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:03
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/32; G02B30/00; G02B30/50; G02B30/54; H; H04; H04N; H04N13/00; H04N13/30; H04N13/388; H04N13/393
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
43 words
A three dimensional display which comprises: (a) a rotating display screen in the shape of a helix; (b) a light source providing a beam of light; and (c) a diffractive pattern deflecting said beam of light to predetermined points on said display screen.
Claim 2
Dependent Claim
43 words
A three dimensional display which comprises: (a) a rotating display screen in the shape of a helix; (b) a light source providing a beam of light; and (c) a diffractive pattern deflecting said beam of light to predetermined points on said display screen.
Claim 3
Dependent Claim
13 words
The display of claim 1 wherein said diffractive pattern is a holographic pattern.
Claim 4
Dependent Claim
18 words
The display of claim 2 wherein said holographic pattern rotates with the same angular velocity as said screen.
Claim 5
Dependent Claim
34 words
The display of claim 3 wherein said holographic pattern comprises a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 6
Dependent Claim
34 words
The display of claim 2 wherein said holographic pattern comprises a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 7
Dependent Claim
18 words
The display of claim 1 wherein said diffractive pattern rotates with the same angular velocity as said screen.
Claim 8
Dependent Claim
34 words
The display of claim 6 wherein said diffractive pattern comprises a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 9
Dependent Claim
34 words
The display of claim 6 wherein said diffractive pattern comprises a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 10
Dependent Claim
34 words
The display of claim 1 wherein said diffractive pattern comprises a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 11
Dependent Claim
65 words
A three dimensional display which comprises: (a) a rotating display screen; (b) a light source providing a beam of light; and (c) a holographic pattern deflecting said beam of light to predetermined points on said display screen, said holographic pattern comprising a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 12
Dependent Claim
65 words
A three dimensional display which comprises: (a) a rotating display screen; (b) a light source providing a beam of light; and (c) a holographic pattern deflecting said beam of light to predetermined points on said display screen, said holographic pattern comprising a plurality of concentric circles, each of said circles comprising a plurality of cells, each of said cells representing a point on said screen.
Claim 13
Dependent Claim
18 words
The display of claim 10 wherein said holographic pattern rotates with the same angular velocity as said screen.
References Cited (Backward Citations)
US3619033A
Cited
US4165464A
Cited
US4600266A
Cited
US4678263A
Cited
US5024494A
Cited
US5042909A
Cited
US5082350A
Cited
US4871231A
Cited
US5172266A
Cited
US5220452A
Cited
US5148310A
Cited
US5231538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-22 | 1998-11-21 | 1999-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-22 | 2002-11-21 | 2003-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-22 | 2006-11-21 | 2007-05-23 | $7700.00 | Window Closed / Lapsed |