CH604392A5 - - Google Patents

Info

Publication number
CH604392A5
CH604392A5 CH853576A CH853576A CH604392A5 CH 604392 A5 CH604392 A5 CH 604392A5 CH 853576 A CH853576 A CH 853576A CH 853576 A CH853576 A CH 853576A CH 604392 A5 CH604392 A5 CH 604392A5
Authority
CH
Switzerland
Application number
CH853576A
Inventor
Herbert Walther
Wolfgang Hartig
Adolf Friedrich
Roderich Raue
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of CH604392A5 publication Critical patent/CH604392A5/xx

Links

Classifications

    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/20—Liquids
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/20—Liquids
    • H01S3/213—Liquids including an organic dye

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
CH853576A 1975-07-04 1976-07-02 CH604392A5 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752529903 DE2529903A1 (de) 1975-07-04 1975-07-04 Farbstofflaser

Publications (1)

Publication Number Publication Date
CH604392A5 true CH604392A5 (da) 1978-09-15

Family

ID=5950671

Family Applications (1)

Application Number Title Priority Date Filing Date
CH853576A CH604392A5 (da) 1975-07-04 1976-07-02

Country Status (7)

Country Link
US (1) US4100509A (da)
JP (1) JPS529391A (da)
CH (1) CH604392A5 (da)
DE (1) DE2529903A1 (da)
FR (1) FR2316769A1 (da)
GB (1) GB1518884A (da)
NL (1) NL7607198A (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700293A1 (de) * 1977-01-05 1978-07-06 Bayer Ag Farbstofflaser
DE2700292C2 (de) * 1977-01-05 1981-09-24 Bayer Ag, 5090 Leverkusen Verwendung von bestimmten Bisstyryl-phenyl- oder -biphenyl- Verbindungen sowie deren Metall- oder organischen Ammoniumsalzen zur Erzeugung einer kohärenten Laseremission
DE3408028A1 (de) * 1984-03-05 1985-09-12 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Verwendung von substituierten und unsubstituierten ringueberbrueckten para-oligophenylenen als uv-laserfarbstoffe
US5037578A (en) * 1986-02-18 1991-08-06 Exciton Chemical Company O,O'-bridged oligophenylene laser dyes and dyestuff lasers and method of lasing therewith
US5041238A (en) * 1986-02-18 1991-08-20 Exciton Chemical Company o,o'-Bridged oligophenylene laser dyes, dyestuff lasers and methods of lasing therewith
US5111472A (en) * 1989-06-08 1992-05-05 The United States Of America As Represented By The United States Department Of Energy Fluorinated laser dyes
US7063264B2 (en) 2001-12-24 2006-06-20 Digimarc Corporation Covert variable information on identification documents and methods of making same
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
EP1550077B1 (en) * 2001-12-24 2009-07-08 Digimarc ID Systems, LLC Laser engraving methods, and articles having laser engraving thereon
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
WO2003055638A1 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Laser etched security features for identification documents and methods of making same
AU2002364746A1 (en) 2001-12-24 2003-07-15 Digimarc Id Systems, Llc Systems, compositions, and methods for full color laser engraving of id documents
AU2003221894A1 (en) 2002-04-09 2003-10-27 Digimarc Id Systems, Llc Image processing techniques for printing identification cards and documents
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
AU2003298731A1 (en) 2002-11-26 2004-06-18 Digimarc Id Systems Systems and methods for managing and detecting fraud in image databases used with identification documents
US7763179B2 (en) * 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
DE602004030434D1 (de) 2003-04-16 2011-01-20 L 1 Secure Credentialing Inc Dreidimensionale datenspeicherung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA960453A (en) * 1970-03-30 1975-01-07 Eastman Kodak Company Organic dye lasing compositions
DE2421607A1 (de) * 1974-05-04 1975-11-13 Bayer Ag Farbstofflaser
DE2460491A1 (de) * 1974-12-20 1976-07-01 Hoechst Ag Verfahren zur herstellung von xanthenfarbstoffen

Also Published As

Publication number Publication date
FR2316769B1 (da) 1980-05-30
DE2529903A1 (de) 1977-01-27
FR2316769A1 (fr) 1977-01-28
JPS529391A (en) 1977-01-24
US4100509A (en) 1978-07-11
NL7607198A (nl) 1977-01-06
GB1518884A (en) 1978-07-26

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased