DE2023739A1 - - Google Patents

Info

Publication number
DE2023739A1
DE2023739A1 DE19702023739 DE2023739A DE2023739A1 DE 2023739 A1 DE2023739 A1 DE 2023739A1 DE 19702023739 DE19702023739 DE 19702023739 DE 2023739 A DE2023739 A DE 2023739A DE 2023739 A1 DE2023739 A1 DE 2023739A1
Authority
DE
Germany
Prior art keywords
point
volume
diaphragm
way
disc
Prior art date
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.)
Pending
Application number
DE19702023739
Other languages
German (de)
English (en)
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 filed Critical
Publication of DE2023739A1 publication Critical patent/DE2023739A1/de
Pending 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)
DE19702023739 1969-05-14 1970-05-14 Pending DE2023739A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE2023739A1 true DE2023739A1 (enrdf_load_stackoverflow) 1970-11-26

Family

ID=9034098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702023739 Pending DE2023739A1 (enrdf_load_stackoverflow) 1969-05-14 1970-05-14

Country Status (4)

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

Cited By (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
EP0334858A4 (en) * 1986-10-03 1989-11-07 Res Corp Technololgies INTERIOR WITHOUT DIFFERENTIATION.
WO1993012937A1 (en) * 1991-12-31 1993-07-08 Compaq Computer Corporation Method of forming tapered orifice arrays in fully assembled ink jet printheads

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583478B2 (ja) * 1978-03-03 1983-01-21 株式会社日立製作所 レ−ザ加熱方法および装置
US4749840A (en) * 1986-05-16 1988-06-07 Image Micro Systems, Inc. Intense laser irradiation using reflective optics
GB9811557D0 (en) * 1998-05-29 1998-07-29 Exitech Ltd The use of beam shaping for improving the performance of machines used to laser drill microvia holes in printed circuit (wiring) and other packages

Cited By (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
EP0334858A4 (en) * 1986-10-03 1989-11-07 Res Corp Technololgies INTERIOR WITHOUT DIFFERENTIATION.
WO1993012937A1 (en) * 1991-12-31 1993-07-08 Compaq Computer Corporation Method of forming tapered orifice arrays in fully assembled ink jet printheads

Also Published As

Publication number Publication date
NL7006890A (enrdf_load_stackoverflow) 1970-11-17
FR2044303A5 (enrdf_load_stackoverflow) 1971-02-19
BE750262A (fr) 1970-11-12

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