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US3789397A Expired / Lapsed US ⏱️ 0.0 years remaining

Three dimensional display system

Assignee: ATHLETIC SWING MEASUREMENT
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Filing: 1971-12-10
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Granted: 1974-01-29
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Expires: 1991-12-10
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Abstract

Abstract A display system for indicating in three dimensions and to a selected scale the position of a remotely observed body or bodies in three dimensional space, the system employing a three dimensional display region and at least two spaced, trainable laser beam assemblies, each of which directs a laser beam along a line which simulates to scale a line of actual direction to the body being observed, and the position of a body being indicated by spot illumination occurring at the intersection of the two beams.

Inventors

  • 👤 J Evans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:37
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G02; G02B; G02B30/00; G02B30/50; G02B30/56

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 135 words
A three-dimensional display apparatus comprising in combination: a. a plurality of position detecting means for detecting the elevation and azimuth of an object in space with respect to the detecting means; b. a display region; c. a plurality of laser beam sources located in said display region in a position analagous to said detecting means; and d. control means coupled to said position detecting means and to said laser beam sources; said control means being responsive to said position detecting means to direct said beams of said laser beam sources at an angle analagous to the angle from each position detecting means to said object in space whereby pairs of laser beams will intersect in space in said display region at an analagous point to said object in space, thereby providing a three dimensional display.
Claim 2
Dependent Claim 135 words
A three-dimensional display apparatus comprising in combination: a. a plurality of position detecting means for detecting the elevation and azimuth of an object in space with respect to the detecting means; b. a display region; c. a plurality of laser beam sources located in said display region in a position analagous to said detecting means; and d. control means coupled to said position detecting means and to said laser beam sources; said control means being responsive to said position detecting means to direct said beams of said laser beam sources at an angle analagous to the angle from each position detecting means to said object in space whereby pairs of laser beams will intersect in space in said display region at an analagous point to said object in space, thereby providing a three dimensional display.
Claim 3
Dependent Claim 55 words
The apparatus in accordance with claim 1 in which said position detecting means includes directional antennas and said control means includes slaving motors for slaving said directional antennas to said laser beam sources whereby the movement of each antenna in said position detecting means produces simultaneous and equivalent movement in one said laser beam source.
Claim 4
Dependent Claim 160 words
A three dimensional display system for indicating in three dimensions and to a selected scale the position of an object in three dimensional space relative to its environment comprising: a. position detecting means for providing signals definitive of the position of an object in space with respect to a reference point; b. a display region and display reference position; c. laser radiation means including at least two laser sources of narrow beam radiant energy for producing a spot of light at the intersection of said narrow beams of radiant energy; d. control means responsive to said signals from said position detecting means for directing said sources of laser beams along lines which intersect in said display region at a point with respect to said display reference position which is a scaled replica of position of a said object, whereby there is created a scaled presentation in three dimensions of a said object with respect to said first named reference position.
Claim 5
Dependent Claim 160 words
A three dimensional display system for indicating in three dimensions and to a selected scale the position of an object in three dimensional space relative to its environment comprising: a. position detecting means for providing signals definitive of the position of an object in space with respect to a reference point; b. a display region and display reference position; c. laser radiation means including at least two laser sources of narrow beam radiant energy for producing a spot of light at the intersection of said narrow beams of radiant energy; d. control means responsive to said signals from said position detecting means for directing said sources of laser beams along lines which intersect in said display region at a point with respect to said display reference position which is a scaled replica of position of a said object, whereby there is created a scaled presentation in three dimensions of a said object with respect to said first named reference position.
Claim 6
Dependent Claim 38 words
A three dimensional display system as set forth in claim 3 wherein said position detecting means comprises radar means for scanning a predetermined region and providing signals definitive of the position of objects encountered in the said region.

References Cited (Backward Citations)

US3258766A Cited
US2604607A Cited
US3427611A Cited
US3275882A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-28 1977-07-30 1978-01-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-28 1981-07-30 1982-01-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-28 1985-07-30 1986-01-29 $7700.00 Window Closed / Lapsed

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