FR2044303A5 - - Google Patents

Info

Publication number
FR2044303A5
FR2044303A5 FR6915789A FR6915789A FR2044303A5 FR 2044303 A5 FR2044303 A5 FR 2044303A5 FR 6915789 A FR6915789 A FR 6915789A FR 6915789 A FR6915789 A FR 6915789A FR 2044303 A5 FR2044303 A5 FR 2044303A5
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR6915789A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR6915789A priority Critical patent/FR2044303A5/fr
Priority to BE750262D priority patent/BE750262A/xx
Priority to NL7006890A priority patent/NL7006890A/xx
Priority to DE19702023739 priority patent/DE2023739A1/de
Application granted granted Critical
Publication of FR2044303A5 publication Critical patent/FR2044303A5/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B23K26/0734—Shaping the laser spot into an annular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G02B17/0605—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors
    • G02B17/061—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
FR6915789A 1969-05-14 1969-05-14 Expired FR2044303A5 (enExample)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR6915789A FR2044303A5 (enExample) 1969-05-14 1969-05-14
BE750262D BE750262A (fr) 1969-05-14 1970-05-12 Dispositif de concentration de lumiere dans un
NL7006890A NL7006890A (enExample) 1969-05-14 1970-05-13
DE19702023739 DE2023739A1 (enExample) 1969-05-14 1970-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6915789A FR2044303A5 (enExample) 1969-05-14 1969-05-14

Publications (1)

Publication Number Publication Date
FR2044303A5 true FR2044303A5 (enExample) 1971-02-19

Family

ID=9034098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6915789A Expired FR2044303A5 (enExample) 1969-05-14 1969-05-14

Country Status (4)

Country Link
BE (1) BE750262A (enExample)
DE (1) DE2023739A1 (enExample)
FR (1) FR2044303A5 (enExample)
NL (1) NL7006890A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418698A1 (fr) * 1978-03-03 1979-09-28 Hitachi Ltd Procede et appareil de traitement d'un objet par un faisceau laser
WO1987006865A3 (en) * 1986-05-16 1988-04-07 Image Micro Systems Inc Intense laser irradiation using reflective optics
WO1999063793A1 (en) * 1998-05-29 1999-12-09 Exitech Limited Apparatus and method for drilling microvia holes in electrical circuit interconnection packages

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685780A (en) * 1984-09-12 1987-08-11 Kabushiki Kaisha Toshiba Reflection type optical device
US4887885A (en) * 1986-10-03 1989-12-19 University Of Rochester Diffraction free arrangement
US5208980A (en) * 1991-12-31 1993-05-11 Compag Computer Corporation Method of forming tapered orifice arrays in fully assembled ink jet printheads

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418698A1 (fr) * 1978-03-03 1979-09-28 Hitachi Ltd Procede et appareil de traitement d'un objet par un faisceau laser
WO1987006865A3 (en) * 1986-05-16 1988-04-07 Image Micro Systems Inc Intense laser irradiation using reflective optics
WO1999063793A1 (en) * 1998-05-29 1999-12-09 Exitech Limited Apparatus and method for drilling microvia holes in electrical circuit interconnection packages

Also Published As

Publication number Publication date
DE2023739A1 (enExample) 1970-11-26
NL7006890A (enExample) 1970-11-17
BE750262A (fr) 1970-11-12

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Legal Events

Date Code Title Description
ST Notification of lapse