Patent US3767299A successfully refreshed from Google Patents.
US3767299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display projector
Assignee: Individual
•
Filing: 1971-10-20
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Granted: 1973-10-23
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Expires: 1991-10-20
Abstract
Abstract A visual display system comprising a laser light source, patterned display generating material mounted in a plane traversing the path of a beam of light from the source, means for continuously moving the beam from said source relative to the display generating material, and projection means for projecting images of the patterns on the display generating material onto a display surface. The display system may further include a reflector mounted in the optical path between the patterned display generating material and the laser light source, the reflector having an eccentric reflecting surface whereby, when the reflector is rotated, the beam of light from the laser source is made to traverse a circular path. The patterned display generating material may comprise a light reflective disc which is mounted for continuous rotation traverse of the path from the beam of said laser source or it may comprise a translucent material which is located between the above noted eccentric reflector and the projection means.
Inventors
- 👤 J Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:20
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
A visual display system comprising a laser source for generating a narrow beam of light, patterned display generating material mounted in a plane transverse to the path of said narrow beam from said laser source, means for continuously moving said beam of light relative to said patterned display generating material, a projection screen, projecting means including a lens for projecting images of said patterned display generating material upon said screen and further means for continuously moving said laser source.
Claim 2
Dependent Claim
79 words
A visual display system comprising a laser source for generating a narrow beam of light, patterned display generating material mounted in a plane transverse to the path of said narrow beam from said laser source, means for continuously moving said beam of light relative to said patterned display generating material, a projection screen, projecting means including a lens for projecting images of said patterned display generating material upon said screen and further means for continuously moving said laser source.
Claim 3
Dependent Claim
64 words
The combination recited in claim 1 wherein said patterned display generating material is translucent and said beam passes therethrough, and said first mentioned means includes a reflector mounted in the optical path between said patterned display generating material and said source, said reflector having an eccentric reflecting surface and means for continuously rotating said reflector to cause said beam to traverse a circular path.
Claim 4
Dependent Claim
22 words
The combination recited in claim 2 wherein said means for continuously rotating said patterned display generating material comprises a variable speed motor.
Claim 5
Dependent Claim
33 words
The combination recited in claim 1 wherein said material is a light reflective disc and further including means for continuously rotating said material in a plane traverse to the path of said beam.
Claim 6
Dependent Claim
26 words
The combination recited in claim 4 wherein said disc contains a plurality of different patterns, said patterns being rotated successively into the path of said beam.
Claim 7
Dependent Claim
22 words
The combination recited in claim 4 wherein said means for continuously rotating said patterned display generating material comprises a variable speed motor.
Claim 8
Dependent Claim
140 words
A visual display system comprising a laser light source for generating a narrow beam of light, means for moving and continuously changing the direction of said beam, a reflector mounted in the path of said beam, said reflector including an eccentric reflecting surface, variable speed motor means for continuously rotating said reflector, a patterned translucent diSplay generating rectangular plate, the pattern on said plate comprising a plurality of surface undulations, means for supporting said plate traverse to said beam and automatically moving said plate into said beam, a projection screen, and means including a lens for projecting light passing through said translucent material onto said screen, whereby light generated by said source in the form of a narrow beam is continuously moved across the surface of said pattern to create a constantly moving and changing visual display on said screen.
Claim 9
Dependent Claim
140 words
A visual display system comprising a laser light source for generating a narrow beam of light, means for moving and continuously changing the direction of said beam, a reflector mounted in the path of said beam, said reflector including an eccentric reflecting surface, variable speed motor means for continuously rotating said reflector, a patterned translucent diSplay generating rectangular plate, the pattern on said plate comprising a plurality of surface undulations, means for supporting said plate traverse to said beam and automatically moving said plate into said beam, a projection screen, and means including a lens for projecting light passing through said translucent material onto said screen, whereby light generated by said source in the form of a narrow beam is continuously moved across the surface of said pattern to create a constantly moving and changing visual display on said screen.
Claim 10
Dependent Claim
84 words
A visual display system comprising a continuously movable laser light source for generating a narrow beam of light, a patterned reflective disc mounted in the path of said beam, said disc having a plurality of different reflective patterns arranged in successive radial sectors thereof, motor means for continuously rotating said disc, and means for projecting the light reflected from said disc directly onto a display surface without passing through any intermediate optical elements, whereby continuously changing and moving patterns are produced on said surface.
Claim 11
Dependent Claim
84 words
A visual display system comprising a continuously movable laser light source for generating a narrow beam of light, a patterned reflective disc mounted in the path of said beam, said disc having a plurality of different reflective patterns arranged in successive radial sectors thereof, motor means for continuously rotating said disc, and means for projecting the light reflected from said disc directly onto a display surface without passing through any intermediate optical elements, whereby continuously changing and moving patterns are produced on said surface.
Claim 12
Dependent Claim
46 words
The combination recited in claim 8 wherein said display system is housed within a compact enclosure and said display surface comprises a rear projection screen of translucent material whereby patterns projected thereon from within said enclosure may be viewed from a position external to said enclosure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |