FR2316769A1 - Laser a colorant - Google Patents

Laser a colorant

Info

Publication number
FR2316769A1
FR2316769A1 FR7620318A FR7620318A FR2316769A1 FR 2316769 A1 FR2316769 A1 FR 2316769A1 FR 7620318 A FR7620318 A FR 7620318A FR 7620318 A FR7620318 A FR 7620318A FR 2316769 A1 FR2316769 A1 FR 2316769A1
Authority
FR
France
Prior art keywords
color laser
laser
color
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.)
Granted
Application number
FR7620318A
Other languages
English (en)
Other versions
FR2316769B1 (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.)
Bayer AG
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 FR2316769A1 publication Critical patent/FR2316769A1/fr
Application granted granted Critical
Publication of FR2316769B1 publication Critical patent/FR2316769B1/fr
Granted legal-status Critical Current

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)
FR7620318A 1975-07-04 1976-07-02 Laser a colorant Granted FR2316769A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2316769A1 true FR2316769A1 (fr) 1977-01-28
FR2316769B1 FR2316769B1 (fr) 1980-05-30

Family

ID=5950671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7620318A Granted FR2316769A1 (fr) 1975-07-04 1976-07-02 Laser a colorant

Country Status (7)

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

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2700293A1 (de) * 1977-01-05 1978-07-06 Bayer Ag Farbstofflaser
DE3408028A1 (de) * 1984-03-05 1985-09-12 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Verwendung von substituierten und unsubstituierten ringueberbrueckten para-oligophenylenen als uv-laserfarbstoffe
US5041238A (en) * 1986-02-18 1991-08-20 Exciton Chemical Company o,o'-Bridged oligophenylene laser dyes, dyestuff lasers and methods of lasing therewith
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
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
CA2470600C (fr) 2001-12-24 2009-12-22 Digimarc Id Systems, Llc Systemes, compositions et procedes de gravure au laser en couleur de documents d'identification
EP1467834A4 (fr) 2001-12-24 2005-04-06 Digimarc Id Systems Llc Elements de securite grave au laser destines a des documents d'identification et procedes de fabrication de ces elements
ATE435757T1 (de) * 2001-12-24 2009-07-15 Digimarc Id Systems Llc Lasergravierverfahren sowie mit lasergravur versehene artikel
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification 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
WO2004049242A2 (fr) 2002-11-26 2004-06-10 Digimarc Id Systems Systemes et procedes de gestion et de detection de fraudes dans des bases de donnees d'images utilisees avec des documents d'identification
US7763179B2 (en) * 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
US7225991B2 (en) 2003-04-16 2007-06-05 Digimarc Corporation Three dimensional data storage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2083661A1 (fr) * 1970-03-30 1971-12-17 Eastman Kodak Co
DE2421607A1 (de) * 1974-05-04 1975-11-13 Bayer Ag Farbstofflaser
NL7514581A (nl) * 1974-12-20 1976-06-22 Hoechst Ag Werkwijze voor het bereiden van xantheenkleurstof- fen.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2083661A1 (fr) * 1970-03-30 1971-12-17 Eastman Kodak Co
DE2421607A1 (de) * 1974-05-04 1975-11-13 Bayer Ag Farbstofflaser
NL7514581A (nl) * 1974-12-20 1976-06-22 Hoechst Ag Werkwijze voor het bereiden van xantheenkleurstof- fen.
FR2295083A1 (fr) * 1974-12-20 1976-07-16 Hoechst Ag Procede de preparation de colorants de xanthene

Also Published As

Publication number Publication date
US4100509A (en) 1978-07-11
DE2529903A1 (de) 1977-01-27
NL7607198A (nl) 1977-01-06
JPS529391A (en) 1977-01-24
FR2316769B1 (fr) 1980-05-30
CH604392A5 (fr) 1978-09-15
GB1518884A (en) 1978-07-26

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Legal Events

Date Code Title Description
ST Notification of lapse