JPS56110902A - Laser irradiating device - Google Patents

Laser irradiating device

Info

Publication number
JPS56110902A
JPS56110902A JP1330480A JP1330480A JPS56110902A JP S56110902 A JPS56110902 A JP S56110902A JP 1330480 A JP1330480 A JP 1330480A JP 1330480 A JP1330480 A JP 1330480A JP S56110902 A JPS56110902 A JP S56110902A
Authority
JP
Japan
Prior art keywords
energy distribution
lens
laser beam
optical axis
axis part
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
JP1330480A
Other languages
Japanese (ja)
Inventor
Ken Ishikawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1330480A priority Critical patent/JPS56110902A/en
Publication of JPS56110902A publication Critical patent/JPS56110902A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To vary the energy distribution of laser beam, by using a composite lens made of plural condenser lens pieces having the optical axis part eliminated. CONSTITUTION:The laser beam L is irradiated to the composite lens 6 made of two condenser lens pieces 8a and 9a obtained by eliminating the optical axis part from the ordinary convex lenses 8 and 9 each. The beam L passed through the lens 6 is divided into two semicircular luminous fluxes S1 and S2 to be converged toward the focuses on the optical axes P1 and P2 of the lenses 8 and 9 each. In this case, the position is replaced between the fluxes S1 and S2. Thus, for instance, a high energy distribution is obtained at the periphery of the area along the line II-II in the diagram with rather a low and uniform energy distribution obtained at the center line, respectively.
JP1330480A 1980-02-06 1980-02-06 Laser irradiating device Pending JPS56110902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1330480A JPS56110902A (en) 1980-02-06 1980-02-06 Laser irradiating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1330480A JPS56110902A (en) 1980-02-06 1980-02-06 Laser irradiating device

Publications (1)

Publication Number Publication Date
JPS56110902A true JPS56110902A (en) 1981-09-02

Family

ID=11829433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1330480A Pending JPS56110902A (en) 1980-02-06 1980-02-06 Laser irradiating device

Country Status (1)

Country Link
JP (1) JPS56110902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63154285A (en) * 1986-12-15 1988-06-27 Amada Co Ltd Laser beam machine
US5060668A (en) * 1984-05-16 1991-10-29 B. A. T. Cigaretten-Fabriken Gmbh Device for the production of at least two adjacent rows of perforations in cigarettes and/or filter-lining paper or filter-wrapping paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060668A (en) * 1984-05-16 1991-10-29 B. A. T. Cigaretten-Fabriken Gmbh Device for the production of at least two adjacent rows of perforations in cigarettes and/or filter-lining paper or filter-wrapping paper
JPS63154285A (en) * 1986-12-15 1988-06-27 Amada Co Ltd Laser beam machine

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