Laser eraser and microwelder

Claim 2

A laser system capable of operating as an eraser and as a microwelder, said system comprising a laser generator having dual-mode-operative power-supply circuit, said laser generator having an incremental lasing means projecting therefrom, and a laser working head coupled to said laser generator through said incremental lasing means thereof and receiving radiation therefrom; said incremental lasing means having a lasing element at the terminal end thereof and forming cooperatively with said element and said laser generator a continuous laser stimulating cavity therein; said laser working head having an axially displaceable coniform section with an opening at the tip thereof, an optical system disposed in said coniform section and having means for internally adjusting said optical system in axial respect to said coniform section and movable thereby, and a laser emission control means positioned in said laser working head in adjacent relation to said means for internally adjusting said optical system and activated thereby; said laser emission control means having connecting means coupled to said dual-modeoperative power-supply circuit which being provided with means to select from said circuit one of the operative modes thereof; said optical system being adapted to receive laser radiation from said lasing element form on said incremental lasing means and to direct said radiation through the opening of said coniform section, at the tip thereof, upon a workpiece placed in abutment with said tip for interaction of said radiation with said workpiece.

Claim 3

A laser system as defined in claim 1, wherein said laser working head comprises a housing having therein a mobile section with a terminal portion of coniform configuration, a lens holder having a lens adjustably disposed in said mobile section in axial respect thereof, means provided on said lens holder for adjusting the axial position thereof, the resilient means in said laser working head in abutment with said mobile section to support said section together with said lens holder in an outwardly projecting position within said laser working head.

Claim 4

The laser system as defined in claim 1, wherein said laser working head comprises a housing having therein a coniform section adapted to slide inward and outward within said housing in spaced relation to said lasing means therein; said coniform section having an axially adjustable means in the base thereof and an optical means disposed in said adjustable means, a spring means disposed in said housing in peripheral relation to said axially adjustable means and in abutment with said coniform section to control the inward and outward movement thereof and thereby the axial movement of said optical means therein with respect to said lasing means.

Claim 5

The laser system as defined in claim 1, wherein said incremental lasing means coupled to said laser working head is formed of a flexible sheathing including therein a lasing means; said sheathing means being continuous at one end with a laser generator and at the other end being provided with a solid-state element with reflecting means thereon and optically coupled to said lasing means within said flexible sheathing; said solid-state lasing element with said reflecting means thereof being positioned within said laser working head centrally thereof.

Claim 6

A laser system capable of operating as microwelder and as a eraser, said system comprising a power supply unit containing a laser generator connected thereto, a laser working head having a housing with a movable section provided with a pointed terminal end and an axial opening therein, and a flexible filamentary lasing means joining said power supply and said laser generator to said laser working head; said power supply unit comprising a circuit of dual-mode operation channels; one of said channels being provided with means to produce a direct current and the other being provided with a capacitive network to produce a pulsing current; means disposed in said power supply unit for selectively operating said channels to furnish a direct current and a pulsing current to said laser generator for respective generation thereby of a continuous-wave radiation and a pulsing radiation; said flexible filamentary lasing means being an elongated laser generator receiving lasing energy from said first-mentioned laser generator and being stimulated thereby to emission of a laser radiation; electric conductive means extending along the length of said flexible filamentary lasing means and connecting to the circuit of said means for selecting a laser operative mode; said movable sectIon with a pointed terminal end having an optical system adjustably positioned in axial respect thereto; and, a laser triggering means connected to said electric conductive means being positioned in said laser working head in adjacent relation to said optical system and operable thereby for producing within said flexible filamentary lasting means a radiation to project upon said optical system; said optical system being adapted with means to direct said radiation to the exterior of said housing through the opening in said pointed terminal end of said movable section.

Claim 7

A laser system capable of operating as microwelder and as a eraser, said system comprising a power supply unit containing a laser generator connected thereto, a laser working head having a housing with a movable section provided with a pointed terminal end and an axial opening therein, and a flexible filamentary lasing means joining said power supply and said laser generator to said laser working head; said power supply unit comprising a circuit of dual-mode operation channels; one of said channels being provided with means to produce a direct current and the other being provided with a capacitive network to produce a pulsing current; means disposed in said power supply unit for selectively operating said channels to furnish a direct current and a pulsing current to said laser generator for respective generation thereby of a continuous-wave radiation and a pulsing radiation; said flexible filamentary lasing means being an elongated laser generator receiving lasing energy from said first-mentioned laser generator and being stimulated thereby to emission of a laser radiation; electric conductive means extending along the length of said flexible filamentary lasing means and connecting to the circuit of said means for selecting a laser operative mode; said movable sectIon with a pointed terminal end having an optical system adjustably positioned in axial respect thereto; and, a laser triggering means connected to said electric conductive means being positioned in said laser working head in adjacent relation to said optical system and operable thereby for producing within said flexible filamentary lasting means a radiation to project upon said optical system; said optical system being adapted with means to direct said radiation to the exterior of said housing through the opening in said pointed terminal end of said movable section.

Claim 8

A laser system as defined in claim 5, wherein said power supply unit with said laser generator therein having means thereon adapted to secure said unit to a supporting surface and a control means to selectively furnish from said laser system a laser radiation beam in pulsing mode and in continuous-wave mode.

Claim 9

A laser system capable of operating as an eraser and as a microwelder, said system comprising a power supply unit with a laser generator connected thereto to receive energizing energy therefrom, a flexible lasing means extending from said laser generator and optically coupled thereto, and a laser working head having a housing with a chamber therein being connected to the free end of said flexible lasing means with said free end extending partially thereinto; said housing having a coniform end section with an apertured tip and a middle section with a shoulder means formed therein; and annular recess formed within said laser working head between the base section of said coniform end section and the shoulder means of said middle section and means disposed in said recess and adapted to normally retain said coniform end section in spaced relation to said free end of said flexible lasing means; said coniform and section having an axial chamber extending to the tip thereof, and being movable within said middle section; an optical means having an adjusting means disposed centrally in said coniform end section and movable thereby with respect to said lasing means to receive laser radiation therefrom; a laser energizing means with communicating with the circuit of said laser generator being positioned in said middle section adjacent to said adjusting means and activated thereby during operation of said laser working head; said laser radiation received by said optical means being directed thereby convergently to the exterior of said tip through the aperture thereof.

Claim 10

A laser system capable of operating as an eraser and as a microwelder, said system comprising a power supply unit with a laser generator connected thereto to receive energizing energy therefrom, a flexible lasing means extending from said laser generator and optically coupled thereto, and a laser working head having a housing with a chamber therein being connected to the free end of said flexible lasing means with said free end extending partially thereinto; said housing having a coniform end section with an apertured tip and a middle section with a shoulder means formed therein; and annular recess formed within said laser working head between the base section of said coniform end section and the shoulder means of said middle section and means disposed in said recess and adapted to normally retain said coniform end section in spaced relation to said free end of said flexible lasing means; said coniform and section having an axial chamber extending to the tip thereof, and being movable within said middle section; an optical means having an adjusting means disposed centrally in said coniform end section and movable thereby with respect to said lasing means to receive laser radiation therefrom; a laser energizing means with communicating with the circuit of said laser generator being positioned in said middle section adjacent to said adjusting means and activated thereby during operation of said laser working head; said laser radiation received by said optical means being directed thereby convergently to the exterior of said tip through the aperture thereof.

Claim 11

A laser system as defined in claim 7, wherein said flexible lasing means partially extending into said laser working head terminates in a lasing element intimately secured to the end thereof, a sapphire means attached to said lasing element to gather and reflect laser radiation unto said lasing element for activation thereof by the joint radiation from said flexible lasing means and that reflected from said sapphire; supporting means disposed in said laser working head and adapted to position said sapphire, said lasing element, and said flexible lasing means centrally within said laser working head to project a laser radiation centrally thereto.

Claim 12

The laser system as defined in claim 7, wherein said optical means in said coniform end section with an apertured tip is provided with a lens mount and a lens secured in said lens mount; said lens mount having an elongated end section projecting in axial respect to said coniform end section and being adapted to be manually adjusted for positioning the focal point of said lens on the principal axis of said coniform end section and in spaced relation to said tip.

Claim 13

A laser system capable of operating as an eraser and as a microwelder, said system comprising a laser working head having a housing accommodable in hand and operable thereby for microwelding materials and erasing characters from written documents; said housing having at one end a cylinder tapering conically to an apex having therein an aperture extending divergently into the interior of said cylinder, which being adapted to move inwarDly upon a pressure exerted on said apex; the opposite end of said housing being provided with an elongated lasing means having thereon connecting means adapted to couple said lasing means to a source of laser radiation to activate said lasing means; an optical lens means with a lens therein being disposed in said cylinder and having means for adjusting the optical plane of said lens along the principal axis of said cylinder and at right angles to said axis thereof for receiving a laser radiation from said lasing means; means to effect the activation of said laser radiation being disposed in said laser working head and operable by said means for adjusting the optical plane of said lens; said means to effect the activation of laser radiation being connected to said connecting means; said lens receiving laser radiation from said lasing means directs said radiation along said axis to the exterior of said cylinder through the aperture thereof for focusing said radiation on a workpiece placed adjacent to said apex; said laser working head and said elongated lasing means with said connecting means to couple said lasing means to a source of laser radiation forming a unitary article of manufacture.

Claim 14

A laser system capable of operating as an eraser and as a microwelder, said system comprising a laser working head having a housing accommodable in hand and operable thereby for microwelding materials and erasing characters from written documents; said housing having at one end a cylinder tapering conically to an apex having therein an aperture extending divergently into the interior of said cylinder, which being adapted to move inwarDly upon a pressure exerted on said apex; the opposite end of said housing being provided with an elongated lasing means having thereon connecting means adapted to couple said lasing means to a source of laser radiation to activate said lasing means; an optical lens means with a lens therein being disposed in said cylinder and having means for adjusting the optical plane of said lens along the principal axis of said cylinder and at right angles to said axis thereof for receiving a laser radiation from said lasing means; means to effect the activation of said laser radiation being disposed in said laser working head and operable by said means for adjusting the optical plane of said lens; said means to effect the activation of laser radiation being connected to said connecting means; said lens receiving laser radiation from said lasing means directs said radiation along said axis to the exterior of said cylinder through the aperture thereof for focusing said radiation on a workpiece placed adjacent to said apex; said laser working head and said elongated lasing means with said connecting means to couple said lasing means to a source of laser radiation forming a unitary article of manufacture.

Claim 15

A laser system capable of operating as an eraser and as a microwelder, said system comprising a laser generator with a power-supply unit connected thereto for energizing said laser generator, and a laser working head having a radiation-coupling lasing means projecting therefrom and being coupled to said laser generator, forming a unitary laser generating and instrumentation system; said laser working head having a housing with a spring-loaded coniform section provided with an opening therethrough, a lens holder with a lens means therein disposed in said coniform section and having means for adjusting said lens holder in axial respect to said coniform section; a laser energizing means positioned in cooperative respect to said means for adjusting said lens holder and activated thereby; said radiation-coupling lasing means being elongated and having a laser-emission means disposed at each end thereof and optically coupled to each of said laser-emission means to form a continuous laser-stimulating cavity therewith; said lens means receives laser radiation from said laser-stimulating cavity and projects said radiation convergently to the exterior of said coniform section through the opening thereof.

Claim 16

A laser system capable of operating as an eraser and as a microwelder, said system comprising a laser generator with a power-supply unit connected thereto for energizing said laser generator, and a laser working head having a radiation-coupling lasing means projecting therefrom and being coupled to said laser generator, forming a unitary laser generating and instrumentation system; said laser working head having a housing with a spring-loaded coniform section provided with an opening therethrough, a lens holder with a lens means therein disposed in said coniform section and having means for adjusting said lens holder in axial respect to said coniform section; a laser energizing means positioned in cooperative respect to said means for adjusting said lens holder and activated thereby; said radiation-coupling lasing means being elongated and having a laser-emission means disposed at each end thereof and optically coupled to each of said laser-emission means to form a continuous laser-stimulating cavity therewith; said lens means receives laser radiation from said laser-stimulating cavity and projects said radiation convergently to the exterior of said coniform section through the opening thereof.

Claim 17

A laser system capable of operating as a microwelder and as a eraser, said system comprising a power supply unit with a dual-mode-function laser generator therein, a laser manipulating head having therein an axially extending chamber opening to the exterior thereof, an optical means disposed in said chamber in axial relation thereto, laser-energizing means disposed adjacent to said optical means and operated thereby and a connecting means joining said power supply unit to said laser manipulating head to form a unitary article of manufacture; said connecting means being an elongated cylindrical lasing element optically coupled at one end to said laser generator and at the opposite end being connected to said laser manipulating head and extending partly thereinto; the portion of said cylindrical lasing element extending into said laser manipulating head being provided with a solid-state ruby rod having a reflecting means on the periphery thereof; said laser generator, said elongated cylindrical lasing element, and said ruby rod with said reflecting means thereon cooperatively forming a continuous medium of emission of laser radiation, which being received by said optical means and projected thereby to the exterior of said laser manipulating head through the opening thereof.

Claim 18

A laser system capable of operating as a microwelder and as a eraser, said system comprising a power supply unit with a dual-mode-function laser generator therein, a laser manipulating head having therein an axially extending chamber opening to the exterior thereof, an optical means disposed in said chamber in axial relation thereto, laser-energizing means disposed adjacent to said optical means and operated thereby and a connecting means joining said power supply unit to said laser manipulating head to form a unitary article of manufacture; said connecting means being an elongated cylindrical lasing element optically coupled at one end to said laser generator and at the opposite end being connected to said laser manipulating head and extending partly thereinto; the portion of said cylindrical lasing element extending into said laser manipulating head being provided with a solid-state ruby rod having a reflecting means on the periphery thereof; said laser generator, said elongated cylindrical lasing element, and said ruby rod with said reflecting means thereon cooperatively forming a continuous medium of emission of laser radiation, which being received by said optical means and projected thereby to the exterior of said laser manipulating head through the opening thereof.

Claim 19

The laser system as defined in claim 12, wherein said optical means disposed in said chamber having an adjusting means for axially positioning said optical system in said chamber and adjusting the focus size of the laser radiation beam transmitted through said optical means and incident on a workpiece being worked uPon.

Claim 20

A directed-beam laser system capable of welding miniature parts and erasing characters from documents, said system comprising a power-supply unit with means to attach said unit to a surface external thereto, a laser emitting means disposed in said power-supply unit and receiving energizing power therefrom, a laser instrumentation means, and a lasing conduit means optically coupled at one end to said laser emitting means and connected at the other end thereof to said laser instrumentation means to transmit laser radiation thereinto; an optical system disposed within said laser instrumentation means in adjacent relation to said lasing conduit means to receive laser radiation therefrom and to focus said radiation along a point tin the principal axis of said laser instrumentation means, and a control means disposed in said laser instrumentation means and connected to the circuit of said laser emitting means; said optical system being movable axially within said laser instrumentation means with respect to said control means therein for negotiating therewith and energizing thereby said laser-emitting means to generate laser radiation therein and in said lasting conduit means.

Claim 21

A directed-beam laser system capable of welding miniature parts and erasing characters from documents, said system comprising a power-supply unit with means to attach said unit to a surface external thereto, a laser emitting means disposed in said power-supply unit and receiving energizing power therefrom, a laser instrumentation means, and a lasing conduit means optically coupled at one end to said laser emitting means and connected at the other end thereof to said laser instrumentation means to transmit laser radiation thereinto; an optical system disposed within said laser instrumentation means in adjacent relation to said lasing conduit means to receive laser radiation therefrom and to focus said radiation along a point tin the principal axis of said laser instrumentation means, and a control means disposed in said laser instrumentation means and connected to the circuit of said laser emitting means; said optical system being movable axially within said laser instrumentation means with respect to said control means therein for negotiating therewith and energizing thereby said laser-emitting means to generate laser radiation therein and in said lasting conduit means.