US3860752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Virtual image display system with stereo and multi-channel capability
Assignee: Zenith Electronics LLC
•
Filing: 1973-01-26
•
Granted: 1975-01-14
•
Expires: 1993-01-26
Abstract
Abstract This disclosure depicts a virtual image viewing system including a component to be worn by an observer in the manner of spectacles, the system being responsive to a source of video signals and associated deflection signals and to a laser beam for establishing a virtual optical image representing said video signals which is visible only to the observer. In one embodiment the system includes flying spot scanning means which is responsive to the deflection signals and which receives the laser beam for deflecting the beam in two dimensions and for converging the beam to form an unmodulated flying spot raster. A Bragg light-sound interaction cell constituting the component to be worn is responsive to the video signals and receives light from the flying spot raster for modulating the received light to develop a virtual image representing the video signals which is visible only to the observer. Other embodiments are depicted.
Inventors
- 👤 Robert Adler
- 👤 Adrianus Korpel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:46
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/017; G02B26/00; G02B26/08; G02B26/10; G02B26/105; G02F; G02F1/00; G02F1/29; G02F1/33; H; H04; H04N; H04N13/00; H04N13/30; H04N13/302; H04N13/32; H04N13/332; H04N13/339
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light source for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: flying spot scanning means responsive to said deflection signals for forming an unmodulated flying spot raster; and a Bragg light-sound interaction cell constituting said component to be worn, said cell being responsive to said video signals and receiving light from the flying spot raster for modulating the received light to develop a virtual image representing said video signals which is visible only to the observer.
Claim 2
Dependent Claim
124 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light source for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: flying spot scanning means responsive to said deflection signals for forming an unmodulated flying spot raster; and a Bragg light-sound interaction cell constituting said component to be worn, said cell being responsive to said video signals and receiving light from the flying spot raster for modulating the received light to develop a virtual image representing said video signals which is visible only to the observer.
Claim 3
Dependent Claim
138 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: a first Bragg light-sound interaction cell responsive to said input light beam and the said video signals for modulating the beam and converging it to a spot; and means including a second Bragg light-sound interaction cell constituting said component to be worn which is responsive to said deflection signals and receives light from said spot for deflecting the received light in two dimensions to form a virtual image representing said video signals which is visible only to the observer.
Claim 4
Dependent Claim
138 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: a first Bragg light-sound interaction cell responsive to said input light beam and the said video signals for modulating the beam and converging it to a spot; and means including a second Bragg light-sound interaction cell constituting said component to be worn which is responsive to said deflection signals and receives light from said spot for deflecting the received light in two dimensions to form a virtual image representing said video signals which is visible only to the observer.
Claim 5
Dependent Claim
161 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: first Bragg light-sound interaction cell means responsive to said input light beam and to said video signals and deflection signals for modulating the light beam, for deflecting the beam in a first dimension, and for converging said beam to form a modulated line; and second Bragg light-sound interaction cell means constituting said component to be worn responsive to said deflection signals for receiving light from the flying spot developing said line and for deflecting the received light in a second dimension orthogonal to said first dimension to develop a virtual image representing said video signals which is visible only to said observer.
Claim 6
Dependent Claim
161 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: first Bragg light-sound interaction cell means responsive to said input light beam and to said video signals and deflection signals for modulating the light beam, for deflecting the beam in a first dimension, and for converging said beam to form a modulated line; and second Bragg light-sound interaction cell means constituting said component to be worn responsive to said deflection signals for receiving light from the flying spot developing said line and for deflecting the received light in a second dimension orthogonal to said first dimension to develop a virtual image representing said video signals which is visible only to said observer.
Claim 7
Dependent Claim
160 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: a first Bragg light-sound interaction cell responsive to said input light beam and said deflection signals for deflecting in a first dimension and for converging said light beam to form an unmodulated line; and a second Bragg light-sound interaction cell constituting said component to be worn, responsive to said video signals and said deflection signals for receiving light from the flying spot developing said line and for modulating the received light and deflecting the received light in a second dimension orthogonal to said first dimension to develop a virtual image representing said video signals which is visible only to said observer.
Claim 8
Dependent Claim
160 words
A virtual image viewing system including a component to be worn by an observer in the manner of spectacles, said system being responsive to a source of video signals and associated deflection signals and to a spatially coherent input light beam for establishing a virtual optical image representing said video signals which is visible only to the observer, comprising: a first Bragg light-sound interaction cell responsive to said input light beam and said deflection signals for deflecting in a first dimension and for converging said light beam to form an unmodulated line; and a second Bragg light-sound interaction cell constituting said component to be worn, responsive to said video signals and said deflection signals for receiving light from the flying spot developing said line and for modulating the received light and deflecting the received light in a second dimension orthogonal to said first dimension to develop a virtual image representing said video signals which is visible only to said observer.
References Cited (Backward Citations)
US3524011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |