US3709581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide angle infinity image visual display
Assignee: Singer Co
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Filing: 1971-02-05
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Granted: 1973-01-09
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Expires: 1991-02-05
Abstract
Abstract An improved wide angle visual display made up of a plurality of narrow angle reflective mirror-beamsplitter displays shaped as spherical segments. By using a second reflective mirrorbeamsplitter combination with each narrow angle display to provide an aerial image input, the field of view of each narrow angle display is increased and thus fewer narror angle displays are required to make a wide angle display of a given size.
Inventors
- 👤 Glasson F Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32; G02; G02B; G02B17/00; G02B17/02; G02B17/06; G02B17/0647; G02B17/0663; G02B27/00; G02B27/01; G02B27/0101; G02B2027/0123; G02B2027/0125
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
172 words
Wide angle display apparatus comprising: a. a first tier comprising one or more narrow angle reflective mirror beamsplitter displays having as one or more inputs aerial images generated by one or more mirror-beamsplitter combinations, said first tier shaped as a first spherical segment bounded on the top and bottom by lines of latitude: b. 2 second tier comprising one or more narrow angle reflective mirror-beamsplitter displays having as one or more inputs aerial images generated by one or more mirror beamsplitter combinations, said second tier shaped as a spherical segment bounded at the top and bottom by lines of latitude, said bottom line of said second tier having the same angular spacing from the bottom line of said first tier as the top line of said first tier, the centers of said first and second spherical segments being coincident and located so that a plane passing through said center and intersecting the surface of said first tier to form a line of longitude will also intersect the surface of said second tier.
Claim 2
Dependent Claim
172 words
Wide angle display apparatus comprising: a. a first tier comprising one or more narrow angle reflective mirror beamsplitter displays having as one or more inputs aerial images generated by one or more mirror-beamsplitter combinations, said first tier shaped as a first spherical segment bounded on the top and bottom by lines of latitude: b. 2 second tier comprising one or more narrow angle reflective mirror-beamsplitter displays having as one or more inputs aerial images generated by one or more mirror beamsplitter combinations, said second tier shaped as a spherical segment bounded at the top and bottom by lines of latitude, said bottom line of said second tier having the same angular spacing from the bottom line of said first tier as the top line of said first tier, the centers of said first and second spherical segments being coincident and located so that a plane passing through said center and intersecting the surface of said first tier to form a line of longitude will also intersect the surface of said second tier.
Claim 3
Dependent Claim
37 words
The invention according to claim 1 wherein one or more of said narrow angle displays in said first tier and one or more of said narrow angle displays in said second tier share a common spherical mirror.
Claim 4
Dependent Claim
18 words
The invention according to claim 1 wherein said tiers are bounded on the sides by lines of longitude.
Claim 5
Dependent Claim
17 words
The invention according to claim 3 wherein said tiers are bounded by the same lines of longitude.
Claim 6
Dependent Claim
21 words
The invention according to claim 1 wherein said tiers comprise a plurality of narrow angle displays arranged in horizontally abutting relation.
Claim 7
Dependent Claim
26 words
The invention according to claim 5 wherein each of said plurality of displays is shaped as a spherical segment bounded by lines of latitude and longitude.
Claim 8
Dependent Claim
21 words
The invention according to claim 1 wherein said first tier is a section of a different sphere than said second sphere.
Claim 9
Dependent Claim
32 words
The invention according to claim 7 wherein the sphere of which said second tier is a segment has a radius less than the sphere of which said first tier is a segment.
Claim 10
Dependent Claim
21 words
The invention according to claim 7 wherein the inputs to said one or more of said mirror beamsplitter combinations comprise CRTs.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |