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An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process. The conversion of CAD/CAM data descriptive of the object into stereolithographic data used ...

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Номер записи: 5

08-12-2005 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068929541D1

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 6

15-11-2001 дата публикации

SHAPING OF A RADIATION BUNDLE FOR STEREOLITHOGRAPHIE

Номер: AT0000208702T

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

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Номер записи: 7

01-02-2000 дата публикации

STEREOLITHOGRAPHIC CURL REDUCTION

Номер: CA0001340890C

Автор: SMALLEY, DENNIS ROLLETTE, SPENCE, STUART THOMAS, HULL, CHARLES WILLIAM, FREED, RAYMOND SAMUEL, VINSON, WAYNE ALLAN, LEWIS, CHARLES WILLIAM, HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM, VINSON WAYNE ALLAN, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, SMALLEY DENNIS ROLLETTE

Принадлежит: SMALLEY, DENNIS ROLLETTE, SPENCE, STUART THOMAS, HULL, CHARLES WILLIAM, FREED, RAYMOND SAMUEL, VINSON, WAYNE ALLAN, LEWIS, CHARLES WILLIAM, 3D SYSTEMS INC, 3D SYSTEMS, INC.

An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being structurally specified to reduce curl, stress and distortion in the ultimately formed object, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process. A stereolithographic distortion known as curl is defined, and several techniques to eliminate or reduce curl are described, including dashed line, bent line, secondary ...

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Номер записи: 8

15-12-1997 дата публикации

SHAPING OF A RADIATION BUNDLE FOR STEREOLITHOGRAPHIE

Номер: AT0000160968T

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

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Номер записи: 9

15-07-2001 дата публикации

DECREASE OF STEREOLITHOGRAPHI BENDING

Номер: AT0000202517T

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE, HULL, CHARLES WILLIAM, LEWIS, CHARLES WILLIAM, FREED, RAYMOND SAMUEL, SPENCE, STUART THOMAS, VINSON, WAYNE ALLAN, SMALLEY, DENNIS ROLLETTE

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Номер записи: 10

15-11-2005 дата публикации

SHAPING OF A RADIATION BUNDLE FOR STEREOLITHOGRAPHIE

Номер: AT0000308414T

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

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Номер записи: 11

15-12-2005 дата публикации

STEREOLITHOGRAFIE WITH DIFFERENT VECTOR SCANNING FASHIONS

Номер: AT0000313105T

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L, NGUYEN HOP D, LEWIS CHARLES WILLIAM, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SPENCE, STUART THOMAS, ALBERT, DAVID J., SMALLEY, DENNIS ROLLETTE, HARLOW, RICHARD A., STEINBURGH, PHILIP, TARNOFF, HARRY L., NGUYEN, HOP D., LEWIS, CHARLES WILLIAM, VORGITCH, TOM J., REMBA, DAVID Z.

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Номер записи: 12

10-04-2001 дата публикации

STEREOLITHOGRAPHIC BEAM PROFILING

Номер: CA0001341214C

Автор: SPENCE, STUART THOMAS, TARNOFF, HARRY L., TARNOFF HARRY L, SPENCE STUART THOMAS

Принадлежит: SPENCE, STUART THOMAS, TARNOFF, HARRY L., 3D SYSTEMS INC, 3D SYSTEMS, INC.

An apparatus and a method for profiling the intensity of a beam and thus measuring the overall intensity and power of a beam are disclosed that have particular use in stereolithography. A beam sensor comprising a pinhole in a plate and a photodetector behind the pinhole measures the intensity of portions of a beam as the beam is moved over the beam sensor. Software associated with the sensors in a computer controls the scanning mechanism for the beam so that the beam is shifted to find the pinhole and move across it in order to develop the intensity profile. The invention can be used to detect drift in the scanning mechanism, determine the focus of the beam, and predict the depth and width of photopolymer cured by the beam. A related apparatus and method for calibrating and normalizing a stereolithographic apparatus is described, and a related apparatus and method for correcting for drift in production of objects by stereolithography, is also described.

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Номер записи: 13

04-03-1997 дата публикации

METHODS FOR CURING PARTIALLY POLYMERIZED PARTS

Номер: CA0001338954C

Автор: MODREK BORZO, PARKER BRENT, SPENCE STUART THOMAS, MODREK, BORZO, PARKER, BRENT, SPENCE, STUART THOMAS

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a stepwise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process, and further including post processing wherein the object is subjected to additional ultraviolet curing while the object is under water.

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Номер записи: 14

09-10-1997 дата публикации

Stereolithografische CAD/CAM-Datenkonversion

Номер: DE0068928141T2

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L VAN, NGUYEN HOP D, LEWIS CHARLES WILLIAM VAN, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SANTA CLARITA CALIFORNIA 91350, US, SPENCE, STUART THOMAS, SOUTH PASADENA CA 91030, US, ALBERT, DAVID J., APTOS, CA 95007, US, SMALLEY, DENNIS ROLLETTE, BALDWIN PARK, CA 91706, US, HARLOW, RICHARD A., MARINA DEL REY, CA 90291, US, STEINBURGH, PHILIP, SUNNYVALE, CA 94088-3599, US, TARNOFF, HARRY L., VAN NUYS, CA 91411, US, NGUYEN, HOP D., LITTLE ROCK, CA 93543, US, LEWIS, CHARLES WILLIAM, VAN NUYS, CA 91405, US, VORGITCH, TOM J., SIMI VALLEY, CA 93063, US, REMBA, DAVID Z., STUDIO CITY, CA 91604-1708, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 15

25-09-1997 дата публикации

Verringerung des stereolithographischen Verbiegens

Номер: DE0068927908T2

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM VAN, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE, HULL, CHARLES WILLIAM, SANTA CLARITA CALIFORNIA 91350, US, LEWIS, CHARLES WILLIAM, VAN NUYS CALIFORNIA 91350, US, FREED, RAYMOND SAMUEL, NORTHRIDGE CALIFORNIA 91324, US, SPENCE, STUART THOMAS, SOUTH PASADENA CALIFORNIA 91030, US, VINSON, WAYNE ALLAN, VALENCIA CALIFORNIA 91355, US, SMALLEY, DENNIS ROLLETTE, BALDWIN PARK CALIFORNIA 91706, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 16

27-06-1996 дата публикации

Stereolithografische CAD/CAM-Datenkonversion.

Номер: DE0000354637T1

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L VAN, NGUYEN HOP D, LEWIS CHARLES WILLIAM VAN, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SANTA CLARITA CALIFORNIA 91350, US, SPENCE, STUART THOMAS, SOUTH PASADENA CA 91030, US, ALBERT, DAVID J., APTOS, CA 95007, US, SMALLEY, DENNIS ROLLETTE, BALDWIN PARK, CA 91706, US, HARLOW, RICHARD A., MARINA DEL REY, CA 90291, US, STEINBURGH, PHILIP, SUNNYVALE, CA 94088-3599, US, TARNOFF, HARRY L., VAN NUYS, CA 91411, US, NGUYEN, HOP D., LITTLE ROCK, CA 93543, US, LEWIS, CHARLES WILLIAM, VAN NUYS, CA 91405, US, VORGITCH, TOM J., SIMI VALLEY, CA 93063, US, REMBA, DAVID Z., STUDIO CITY, CA 91604-1708, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 17

02-07-1998 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068928485T2

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L VAN, SPENCE, STUART THOMAS, SOUTH PASEDENA CALIFORNIA 91030, US, ALMQUIST, THOMAS, SAN GABRIEL CALIFORNIA 91775, US, TARNOFF, HARRY L., VAN NUYS CALIFORNIA 91411, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 18

07-08-2003 дата публикации

Stereolithografische CAD/CAM-Datenkonversion

Номер: DE0068929423T2

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L, NGUYEN HOP D, LEWIS CHARLES WILLIAM, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SPENCE, STUART THOMAS, ALBERT, DAVID J., SMALLEY, DENNIS ROLLETTE, HARLOW, RICHARD A., STEINBURGH, PHILIP, TARNOFF, HARRY L., NGUYEN, HOP D., LEWIS, CHARLES WILLIAM, VORGITCH, TOM J., REMBA, DAVID Z.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 19

31-07-1997 дата публикации

Stereolithografische CAD/CAM-Datenkonversion

Номер: DE0068928141D1

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L VAN, NGUYEN HOP D, LEWIS CHARLES WILLIAM VAN, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SANTA CLARITA CALIFORNIA 91350, US, SPENCE, STUART THOMAS, SOUTH PASADENA CA 91030, US, ALBERT, DAVID J., APTOS, CA 95007, US, SMALLEY, DENNIS ROLLETTE, BALDWIN PARK, CA 91706, US, HARLOW, RICHARD A., MARINA DEL REY, CA 90291, US, STEINBURGH, PHILIP, SUNNYVALE, CA 94088-3599, US, TARNOFF, HARRY L., VAN NUYS, CA 91411, US, NGUYEN, HOP D., LITTLE ROCK, CA 93543, US, LEWIS, CHARLES WILLIAM, VAN NUYS, CA 91405, US, VORGITCH, TOM J., SIMI VALLEY, CA 93063, US, REMBA, DAVID Z., STUDIO CITY, CA 91604-1708, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 20

20-12-2001 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068929348D1

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 21

10-10-2002 дата публикации

Stereolithografische CAD/CAM-Datenkonversion

Номер: DE0068929423D1

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L, NGUYEN HOP D, LEWIS CHARLES WILLIAM, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SPENCE, STUART THOMAS, ALBERT, DAVID J., SMALLEY, DENNIS ROLLETTE, HARLOW, RICHARD A., STEINBURGH, PHILIP, TARNOFF, HARRY L., NGUYEN, HOP D., LEWIS, CHARLES WILLIAM, VORGITCH, TOM J., REMBA, DAVID Z.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 22

29-02-1996 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie.

Номер: DE0000375097T1

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L VAN, SPENCE, STUART THOMAS, SOUTH PASEDENA CALIFORNIA 91030, US, ALMQUIST, THOMAS, SAN GABRIEL CALIFORNIA 91775, US, TARNOFF, HARRY L., VAN NUYS CALIFORNIA 91411, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 23

02-08-2001 дата публикации

Verringerung des stereolithographischen Verbiegens

Номер: DE0068929309D1

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE, HULL, CHARLES WILLIAM, LEWIS, CHARLES WILLIAM, FREED, RAYMOND SAMUEL, SPENCE, STUART THOMAS, VINSON, WAYNE ALLAN, SMALLEY, DENNIS ROLLETTE

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 24

10-08-2006 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068929541T2

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 25

22-01-1998 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068928485D1

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L VAN, SPENCE, STUART THOMAS, SOUTH PASEDENA CALIFORNIA 91030, US, ALMQUIST, THOMAS, SAN GABRIEL CALIFORNIA 91775, US, TARNOFF, HARRY L., VAN NUYS CALIFORNIA 91411, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 26

02-05-2002 дата публикации

Verringerung des stereolithographischen Verbiegens

Номер: DE0068929309T2

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE, HULL, CHARLES WILLIAM, LEWIS, CHARLES WILLIAM, FREED, RAYMOND SAMUEL, SPENCE, STUART THOMAS, VINSON, WAYNE ALLAN, SMALLEY, DENNIS ROLLETTE

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 27

26-09-2002 дата публикации

Profilierung eines Strahlungsbündels für Stereolithographie

Номер: DE0068929348T2

Автор: SPENCE STUART THOMAS, ALMQUIST THOMAS, TARNOFF HARRY L, SPENCE, STUART THOMAS, ALMQUIST, THOMAS, TARNOFF, HARRY L.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 28

19-01-2006 дата публикации

Stereolithografie mit verschiedenen Vektorabtastungsmoden

Номер: DE0068929542D1

Автор: HULL CHARLES WILLIAM, SPENCE STUART THOMAS, ALBERT DAVID J, SMALLEY DENNIS ROLLETTE, HARLOW RICHARD A, STEINBURGH PHILIP, TARNOFF HARRY L, NGUYEN HOP D, LEWIS CHARLES WILLIAM, VORGITCH TOM J, REMBA DAVID Z, HULL, CHARLES WILLIAM, SPENCE, STUART THOMAS, ALBERT, DAVID J., SMALLEY, DENNIS ROLLETTE, HARLOW, RICHARD A., STEINBURGH, PHILIP, TARNOFF, HARRY L., NGUYEN, HOP D., LEWIS, CHARLES WILLIAM, VORGITCH, TOM J., REMBA, DAVID Z.

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC.

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Номер записи: 29

27-06-1996 дата публикации

Verringerung des stereolithographischen Verbiegens.

Номер: DE0000362982T1

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM VAN, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE, HULL, CHARLES WILLIAM, SANTA CLARITA CALIFORNIA 91350, US, LEWIS, CHARLES WILLIAM, VAN NUYS CALIFORNIA 91350, US, FREED, RAYMOND SAMUEL, NORTHRIDGE CALIFORNIA 91324, US, SPENCE, STUART THOMAS, SOUTH PASADENA CALIFORNIA 91030, US, VINSON, WAYNE ALLAN, VALENCIA CALIFORNIA 91355, US, SMALLEY, DENNIS ROLLETTE, BALDWIN PARK CALIFORNIA 91706, US

Принадлежит: 3D SYSTEMS INC, 3D SYSTEMS, INC., VALENCIA, CALIF., US

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Номер записи: 30

22-10-1992 дата публикации

Номер: JP0004506039A

Автор: HULL CHARLES WILLIAM, LEWIS CHARLES WILLIAM, FREED RAYMOND SAMUEL, SPENCE STUART THOMAS, VINSON WAYNE ALLAN, SMALLEY DENNIS ROLLETTE

Принадлежит:

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Номер записи: 31

06-11-2002 дата публикации

Stereolithographic beam profiling

Номер: EP1106332A3

Автор: Harry L. Tarnoff, Stuart Thomas Spence, Thomas Almquist

Принадлежит: 3D Systems Inc

An apparatus and a method for profiling the intensity of a beam and thus measuring the overall intensity and power of a beam are disclosed that have particular use in stereolithography. A beam sensor comprising a pinhole in a plate and a photodetector behind the pinhole measures the intensity of portions of a beam as the beam is moved over the beam sensor. Software associated with the sensors in a computer controls the scanning mechanism for the beam so that the beam is shifted to find the pinhole and move across it in order to develop the intensity profile. The invention can be used to detect drift in the scanning mechanism, determine the focus of the beam, and predict the depth and width of photopolymer cured by the beam. A related apparatus and method for calibrating and normalizing a stereolithographic apparatus is described, and a related apparatus and method for correcting for drift in production of objects by stereolithography, is also described.

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Номер записи: 32

24-01-1995 дата публикации

Stereolithographic beam profiling

Номер: CA1334052C

Автор: Harry L. Tarnoff, Stuart Thomas Spence, Thomas Almquist

Принадлежит: 3D Systems Inc

An apparatus and a method for profiling the intensity of a beam and thus measuring the overall intensity and power of a beam are disclosed that have particular use in stereolithography. A beam sensor comprising a pinhole in a plate and a photodetector behind the pinhole measures the intensity of portions of a beam as the beam is moved over the beam sensor. Software associated with the sensors in a computer controls the scanning mechanism for the beam so that the beam is shifted to find the pinhole and move across it in order to develop the intensity profile. The invention can be used to detect drift in the scanning mechanism, determine the focus of the beam, and predict the depth and width of photopolymer cured by the beam. A related apparatus and method for calibrating and normalizing a stereolithographic apparatus is described, and a related apparatus and method for correcting for drift in production of objects by stereolithography, is also described.

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Номер записи: 33

15-12-2005 дата публикации