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US3986002A Expired / Lapsed US ⏱️ 0.0 years remaining

Hand-holdable laser system computer

Assignee: Individual
•
Filing: 1975-05-12
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Granted: 1976-10-12
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Expires: 1995-05-12
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Abstract

Abstract A laser system computer in the preferred form of a hand-holdable, two-sided circular slide rule, for quickly and accurately solving a wide range of problems which are associated with laser radar, designation, communications and directed energy applications, the solution of which said problems could not be attained with prior art slide rules of any type. Calculations relating to the design, analysis and performance of lasers are performed on one side of the calculator. Atmospheric effects, such as attenuation and turbulence beam spreading, are computed on the other side of the calculator. Both continuous wave and pulsed lasers can be calculated with the use of this unique computer, which also may be used for ground, air and space laser applications. Structurally, the preferred embodiment is in the form of a circular slide rule having: a circular stator (i.e., base) with a front face and a rear face; a plurality of concentric discs (i.e., slides) of varying diameters shorter than that of the stator and in superposed relationship to, and with, each other and the stator, a removable, centrally located pivot connecting the concentric discs to each other and to the stator, whereby the discs are independently rotatable (i.e., revolvable) about and on the pivot; and, a transparent cursor (i.e., indicator) removably attached to, and revolvable around, the pivot and having a hairline (i.e., index line) thereon. In addition to its specialized function, this unique computer is multi-purpose and can be used to perform conventional mathematical calculations.

Inventors

  • 👤 Dorian A. DeMaio

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 21:27
CPC Classifications
G; G01; G01S; G01S17/00; G01S17/02; G01S7/00; G01S7/48; G06; G06G; G06G1/00; G06G1/0005; G06G1/0036; G06G1/02; G06G1/04; G06G1/08

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 132 words
A multi-purpose, hand-holdable laser computer in the form of a circular slide rule, comprising: a. an opaque circular stator having a front face, a rear face, a geometric center, a diameter, and a plurality of different preselected scales suitably disposed in arcuate configuration on said front face and on said rear face at predetermined fixed locations thereon, wherein said plurality of said different preselected scales at predetemined fixed locations on said front face of said circular stator include, from the most radially remote inward toward said geometric center of said stator: 1. an outermost scale (A) of logarithmic graduations in units for use in calculations involving incident intensity, peak intensity, ideal flux, incident energy fluence, total absorbed energy, received power, received sensor power, laser power, multiplication, logarithms, squaring, and trigonometric functions; 2.
Claim 2
Dependent Claim 132 words
A multi-purpose, hand-holdable laser computer in the form of a circular slide rule, comprising: a. an opaque circular stator having a front face, a rear face, a geometric center, a diameter, and a plurality of different preselected scales suitably disposed in arcuate configuration on said front face and on said rear face at predetermined fixed locations thereon, wherein said plurality of said different preselected scales at predetemined fixed locations on said front face of said circular stator include, from the most radially remote inward toward said geometric center of said stator: 1. an outermost scale (A) of logarithmic graduations in units for use in calculations involving incident intensity, peak intensity, ideal flux, incident energy fluence, total absorbed energy, received power, received sensor power, laser power, multiplication, logarithms, squaring, and trigonometric functions; 2.
Claim 3
Dependent Claim 177 words
an inner scale (A1) of logarithmic graduations in units for use in calculations involving extended power and intensity; 3. another inner scale (U) of logarithmic graduations in units for use in calculations involving intensity degradation due to jitter; 4. still another inner scale (T) of logarithmic graduations in units for use in calculations involving intensity degradation due to jitter; 5. yet another inner scale (G) with graduations in units for converting inches to centimeters, and feet to meters, and vice versa; 6. another inner scale (R1) of logarithmic graduations in units for use in calculations involving squaring; 7. still another inner scale (X) of logarithmic graduations in units for use in calculations involving Rayleigh range; 8. yet another inner scale (H) with graduation in units for converting nautical miles and statute miles to kilometers and vice versa; 9. another inner scale (R) of logarithmic graduations in units for use in calculations involving beam spread angle and reciprocals; 10. an innermost scale (V) of logarithmic graduations in units for use in calculations involving beam spread due to diffraction;
Claim 4
Dependent Claim 177 words
an inner scale (A1) of logarithmic graduations in units for use in calculations involving extended power and intensity; 3. another inner scale (U) of logarithmic graduations in units for use in calculations involving intensity degradation due to jitter; 4. still another inner scale (T) of logarithmic graduations in units for use in calculations involving intensity degradation due to jitter; 5. yet another inner scale (G) with graduations in units for converting inches to centimeters, and feet to meters, and vice versa; 6. another inner scale (R1) of logarithmic graduations in units for use in calculations involving squaring; 7. still another inner scale (X) of logarithmic graduations in units for use in calculations involving Rayleigh range; 8. yet another inner scale (H) with graduation in units for converting nautical miles and statute miles to kilometers and vice versa; 9. another inner scale (R) of logarithmic graduations in units for use in calculations involving beam spread angle and reciprocals; 10. an innermost scale (V) of logarithmic graduations in units for use in calculations involving beam spread due to diffraction;
Claim 5
Dependent Claim 785 words
and, another innermost scale (W) of logarithmic graduations in units for use in calculations involving a Rayleigh range; b. a first rotor slide disc having a front face, a geometric center, and a diameter smaller than said diameter of said circular stator, with said first rotor slide disc positioned front-face-up on said front face of said circular stator with the respective said geometric centers of said circular stator and of said first rotor slide disc in registration, and with said first rotor slide disc also having on said front face thereof an arcuately configurated notch and a plurality of different arcuately configurated slots, wherein said notch and said slots are suitably disposed on said front face of said first rotor slide disc at predetermined fixed locations thereon, and with said first rotor slide disc further having on said front face thereof a plurality of different preselected scales suitably disposed on said front face at predetermined fixed locations thereon in arcuate configuration, with said notch, said slots, and said scales on said front face of said first rotor slide disc usable complementarily with, and cooperatively with, said scales on said front face of said circular stator; c. an opaque second rotor slide disc having a front face, a geometric center, and a diameter smaller than said diameter of said circular stator, with said second rotor slide disc positioned with said front face up on said rear face of said circular stator with the respective said geometric centers of said circular stator and of said second rotor slide disc in registration, and with said second rotor slide disc also having on said front face thereof a plurality of different graph-like preselected scales of sets of curve-like lines suitably disposed on said front face at predetermined fixed locations thereon; d. a third rotor slide disc having a front face, with an opaque sector portion and a transparent sector portion, a geometric center, and a diameter smaller than said diameter of said second rotor slide disc, with said third rotor slide disc positioned with said front face up on said front face of said second rotor slide disc with said respective geometric centers of said third rotor slide disc and of said second rotor slide disc in registration, and with said third rotor slide disc also having on said opaque sector portion of said front face thereof a plurality of different preselected scales in arcuate configuration and a plurality of graph-like scales of sets of curved-like lines, and also with said third rotor slide disc having on said transparent sector portion thereof a preselected scale in arcuate configuration, with all said scales on said front face of said third rotor slide disc disposed at predetermined fixed locations thereon; e. a fourth rotor slide disc having a front face with a transparent sector portion and an opaque sector portion, a geometric center, and a diameter smaller than said diameter of said third rotor slide disc, with said fourth rotor slide disc positioned with said front face up on said front face of said third rotor slide disc with said respective geometric centers of said fourth rotor slide disc and of said third rotor slide disc in registration, and with said front face of said fourth rotor slide disc having on said transparent sector portion thereof a first plurality of different preselected scales marked and disposed at predetermined fixed locations thereon in the form of radially extending lines, and with said front face of said fourth rotor slide disc having on said opaque sector portion thereof a second plurality of different preselected scales disposed at predetermined fixed locations thereon in arcuate configuration; f. a transparent foldable cursor having two ends with a pivot like hole at and in each end, a top surface with a radially disposed hairline marked thereon, and a bottom surface, and being of a length longer than said diameter of said circular stator, with said cursor folded at half-length and positioned so that said bottom surface of one half-length is on top of and abuts the front face of said fourth rotor slide disc, also positioned so that said bottom surface of said other half-length is on top of and abuts said front face of said first rotor slide disc, and said pivot holes are directionally opposed; g. and, a removable, centrally located pivot connecting said circular stator, said first rotor slide disc, said second rotor slide disc, said third rotor slide disc, and said fourth rotor slide disc to each other and together at their respective geometric centers, and with said pivot also connecting said cursor to said circular stator and to said rotor slide discs, whereby said cursor and said rotor slide discs are pivotally
Claim 6
Dependent Claim 785 words
and, another innermost scale (W) of logarithmic graduations in units for use in calculations involving a Rayleigh range; b. a first rotor slide disc having a front face, a geometric center, and a diameter smaller than said diameter of said circular stator, with said first rotor slide disc positioned front-face-up on said front face of said circular stator with the respective said geometric centers of said circular stator and of said first rotor slide disc in registration, and with said first rotor slide disc also having on said front face thereof an arcuately configurated notch and a plurality of different arcuately configurated slots, wherein said notch and said slots are suitably disposed on said front face of said first rotor slide disc at predetermined fixed locations thereon, and with said first rotor slide disc further having on said front face thereof a plurality of different preselected scales suitably disposed on said front face at predetermined fixed locations thereon in arcuate configuration, with said notch, said slots, and said scales on said front face of said first rotor slide disc usable complementarily with, and cooperatively with, said scales on said front face of said circular stator; c. an opaque second rotor slide disc having a front face, a geometric center, and a diameter smaller than said diameter of said circular stator, with said second rotor slide disc positioned with said front face up on said rear face of said circular stator with the respective said geometric centers of said circular stator and of said second rotor slide disc in registration, and with said second rotor slide disc also having on said front face thereof a plurality of different graph-like preselected scales of sets of curve-like lines suitably disposed on said front face at predetermined fixed locations thereon; d. a third rotor slide disc having a front face, with an opaque sector portion and a transparent sector portion, a geometric center, and a diameter smaller than said diameter of said second rotor slide disc, with said third rotor slide disc positioned with said front face up on said front face of said second rotor slide disc with said respective geometric centers of said third rotor slide disc and of said second rotor slide disc in registration, and with said third rotor slide disc also having on said opaque sector portion of said front face thereof a plurality of different preselected scales in arcuate configuration and a plurality of graph-like scales of sets of curved-like lines, and also with said third rotor slide disc having on said transparent sector portion thereof a preselected scale in arcuate configuration, with all said scales on said front face of said third rotor slide disc disposed at predetermined fixed locations thereon; e. a fourth rotor slide disc having a front face with a transparent sector portion and an opaque sector portion, a geometric center, and a diameter smaller than said diameter of said third rotor slide disc, with said fourth rotor slide disc positioned with said front face up on said front face of said third rotor slide disc with said respective geometric centers of said fourth rotor slide disc and of said third rotor slide disc in registration, and with said front face of said fourth rotor slide disc having on said transparent sector portion thereof a first plurality of different preselected scales marked and disposed at predetermined fixed locations thereon in the form of radially extending lines, and with said front face of said fourth rotor slide disc having on said opaque sector portion thereof a second plurality of different preselected scales disposed at predetermined fixed locations thereon in arcuate configuration; f. a transparent foldable cursor having two ends with a pivot like hole at and in each end, a top surface with a radially disposed hairline marked thereon, and a bottom surface, and being of a length longer than said diameter of said circular stator, with said cursor folded at half-length and positioned so that said bottom surface of one half-length is on top of and abuts the front face of said fourth rotor slide disc, also positioned so that said bottom surface of said other half-length is on top of and abuts said front face of said first rotor slide disc, and said pivot holes are directionally opposed; g. and, a removable, centrally located pivot connecting said circular stator, said first rotor slide disc, said second rotor slide disc, said third rotor slide disc, and said fourth rotor slide disc to each other and together at their respective geometric centers, and with said pivot also connecting said cursor to said circular stator and to said rotor slide discs, whereby said cursor and said rotor slide discs are pivotally
Claim 7
Dependent Claim 149 words
secured and are independently rotatable about and on said pivot. 2. A multi-purpose hand-holdable laser laser computer, as set forth in claim 1, wherein said plurality of said different preselected scales at predetermined fixed locations on said rear face of said circular stator include: a. a scale (AA) in logarithmic graduations in appropriate units of wavelength for use in calculations involving wavelength and beam divergence from atmospheric turbulence; b. a scale (BB) of logarithmic graduations in appropriate units for use in calculations involving turbulence-induced beam angle spread; c. a scale (LL) of logarithmic graduations in appropriate units for use in calculations involving atmospheric transmittance to a target and atmospheric transmittance along a return path; d. and, a scale (II) of logarithmic graduations in appropriate units for use in calculations involving target range, atmospheric transmission factor, turbulence induced beam spread differential altitude corresponding to slant path, reciprocals, and trigonometric functions.
Claim 8
Dependent Claim 370 words
A multi-purpose, hand-holdable laser computer, as set forth in claim 1, wherein said plurality of said different preselected scales at predetermined fixed locations on said first rotor slide disc include, from the most radially remote inward toward said geometric center of said stator: a. an outermost scale (B) of logarithmic graduations in units for use in calculations involving irradiation time, beam area, receiver antenna area, target area, sensor receiver area, and multiplication; b. another outermost scale (L) of linear graduations in units for use in calculations involving decibel gain and loss; c. an inner scale (J) of graph-like line in graduations and in units for use in calculations involving beam shape factor; d. another inner scale (F) of logarithmic graduations in units for use in calculations involving atmospheric transmittance to a target, atmospheric transmittance along a return path, target reflectance, transmittance of sensor optics, and multiplication; e. still another inner scale (C) of logarithmic graduations in units for use in calculations involving beam, antenna and target diameters; f. yet another inner scale (Q) of logarithmic graduations in units for use in calculations involving spreading terms and beam intensity degradation due to jitter; g. another inner scale (D) of logarithmic graduations in units for use in calculations involving target range, return range path, and reciprocals; h. still another inner scale (K) of logarithmic graduations in units of degrees for use in calculations involving beam incidence angle, and trigonometric functions; i. yet another inner scale (N) of logarithmic graduations in units for use in calculations involving beam quality factor; j. another inner scale (M) in graduations and in units for use in calculations involving an obscuration factor; k. still another inner scale (O) of logarithmic graduations and in units for use in calculations involving aperture diameter and beam spread due to diffraction; l. another inner scale (E) of logarithmic graduations and in units for use in calculations involving total beam divergence angle, receiver field of view, and squaring; m. another inner scale (O1) of logarithmic graduations and in units for use in calculations involving aperture diameter and beam spread due to diffraction; n. and, an innermost scale (P) in units for use in calculations involving conversion factors in determining ideal flux density.
Claim 9
Dependent Claim 163 words
A multi-purpose, hand-holdable laser computer, as set forth in claim 1, wherein said plurality of said different preselected scales at predetermined fixed locations on said front face of said second rotor slide disc include: a. a first scale (FF1) comprising a set of a plurality of graph-like and curve-like lines representing extinction coefficients for various wavelengths for use in calculations involving determining an atmospheric transmission factor; b. a second scale (FF2) comprising another and different set of a plurality of graph-like and curve-like lines representing extinction coefficients for various wavelengths, different from the extinction coefficients represented on said first scale (FF1), for use in calculations involving determining an atmospheric transmission factor; c. and, a third scale (FF3) comprising still another and different set of a plurality of graph-like and curve-like lines representing extinction coefficients for various wavelengths, different from the extinction coefficients represented on said first scale (FF1) and said second scale (FF2), for use in calculations involving determining an atmospheric transmission factor.
Claim 10
Dependent Claim 206 words
A multi-purpose, hand-holdable laser computer, as set forth in claim 1, wherein said plurality of said different preselected scales at predetermined fixed locations on said front face of said third rotor slide disc, include: a. an outer scale (CC) of logarithmic graduations in units for use in calculations involving a nominal refractive index structure constant; b. another outer scale (DD) of logarithmic graduations in units of degrees for use in calculations involving elevation angle and trigonometric functions; c. still another outer scale (GG) of logarithmic graduations in units for use in calculations involving an extrinction coefficient, wherein this said scale (GG) is disposed on said transparent sector portion of said front face of said third rotor slide disc; d. yet another outer scale (HH) of logarithmic graduations in units of degrees for use in calculations involving an elevation angle and beam divergence from atmospheric turbulence; e. an inner scale (EE1) comprising a set of a plurality of graph-like and curve-like lines representing upward paths for use in calculations involving determining beam divergence from atmospheric turbulence; f. and, another inner scale (EE2) comprising another and different set of a plurality of graph-like and curve-like lines representing horizontal paths for use in determining beam divergence from atmospheric turbulence.
Claim 11
Dependent Claim 191 words
A multi-purpose, hand-holdable laser computer, as set forth in claim 1, wherein said first plurality and said second plurality of said different preselected scales at predetermined fixed locations on said front face of said fourth rotor slide disc, include: a. in said first plurality of scales disposed on said transparent sector portion of said front face in the form of radially extending lines on said transparent sector portion: 1. a scale (MM) of logarithmic graduations in units representing target altitude for use in calculations involving a slant transmission path as to beam divergence from atmospheric turbulence; 2. another scale (NN) of logarithmic graduation in units representing altitude for use in calculations involving determining an atmospheric transmission factor; 3. and, still another scale (OO) of logarithmic graduations in units representing target altitude in calculations involving a horizontal transmission path as to beam divergence from atmospheric turbulence; b. and, in said second plurality of scales disposed on said opaque sector portion of said front face: 1. a scale (JJ) of appropriate graduations in units for use in calculations involving correction factors with regard to source altitude as to beam divergence from atmospheric turbulence;
Claim 12
Dependent Claim 25 words
and, another scale (KK) of logarithmic graduations in units for use in calculations involving distance correction, and also for converting English units to metric units.
Claim 13
Dependent Claim 25 words
and, another scale (KK) of logarithmic graduations in units for use in calculations involving distance correction, and also for converting English units to metric units.
Claim 14
Dependent Claim 212 words
A multi-purpose, hand-holdable laser computer, as set forth in claim 1, wherein: a. said plurality of different arcuate configurated slots on and in said front face of said first rotor slide disc include, from the most radially remote inward toward said geometric center of said first rotor slide disc: 1. an outermost slot, having two angularly spaced fiduciary markers, for use in calculations involving determining beam intensity degradation due to jitter; 2. an inner slot, with a fiduciary marker, for use in calculations involving target range, beam divergence angle, and beam, antenna, and target diameter; 3. another inner slot, with a fiduciary marker, for use in calculations involving a Rayleigh range and a near field and a far field thereof; 4. still another inner slot for use in calculations involving diffraction beam spread, non-diffraction beam spread, beam quality, and beam intensity degradation due to jitter; 5. and, an innermost slot for use in calculations involving beam spread due to diffraction, a wavelength, and aperture diameter; b. and, said arcuate configurated notch on and in said front face of said first rotor slide disc is most remotely radially located from said geometric center of said first rotor slide disc than said outermost slot, with said notch for use in calculations involving extended power.

References Cited (Backward Citations)

US3253780A Cited
US2934264A Cited
US3243110A Cited
US3700162A Cited
US3610520A Cited
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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) 1979-10-12 1980-04-12 1980-10-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-12 1984-04-12 1984-10-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-12 1988-04-12 1988-10-12 $7700.00 Window Closed / Lapsed

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