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1. WO2008040529 - ARRANGEMENT FOR PROVIDING SPECKLE REDUCTION

Publication Number WO/2008/040529
Publication Date 10.04.2008
International Application No. PCT/EP2007/008554
International Filing Date 02.10.2007
IPC
G02B 27/48 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
48Laser speckle optics
H01S 3/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
CPC
G02B 27/48
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
48Laser speckle optics; ; Speckle reduction arrangements
G02B 3/14
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
12Fluid-filled or evacuated lenses
14of variable focal length
H01S 3/005
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES 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
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
005Optical 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
Applicants
  • CARL ZEISS AG [DE]/[DE] (AllExceptUS)
  • PESCH, Alexander [DE]/[DE] (UsOnly)
  • SEMSCH, Torsten [DE]/[DE] (UsOnly)
  • MARTIN, Dietrich [DE]/[DE] (UsOnly)
Inventors
  • PESCH, Alexander
  • SEMSCH, Torsten
  • MARTIN, Dietrich
Agents
  • GRÖBER, Volker
Priority Data
10 2006 047 531.307.10.2006DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ANORDNUNG ZUR SPECKEL-REDUKTION
(EN) ARRANGEMENT FOR PROVIDING SPECKLE REDUCTION
(FR) DISPOSITIF POUR RÉDUCTION DU CHATOIEMENT
Abstract
(DE)
Die Erfindung betrifft eine Anordnung zur Speckel-Reduktion einer Laserstrahlungsquelle, deren Strahlenbündel durch eine strahlaufweitende Optik vergrößerbar ist, auf einen Diffusor trifft und dann ein Feld beleuchtet, wobei die strahlaufweitende Optik zumindest eine Linse enthält, deren Brechkraft durch eine elektronische Ansteuereinheit veränderbar ist, wobei die Linse eine Variolinse ist.
(EN)
The invention relates to an arrangement for providing speckle reduction in a laser radiation source whose beam can be enlarged by a beam-expanding optics, strikes a diffuser and illuminates a field, characterized in that the beam-expanding optics contains at least one lens whose refractive power can be modified by an electronic control unit and that the lens is a variolens.
(FR)
L'invention concerne un dispositif destiné à la réduction du chatoiement d'une source de rayonnement laser dont le faisceau peut être agrandi par une optique à élargissement de faisceau, rencontre un diffuseur, puis éclaire un champ, caractérisé en ce que l'optique à élargissement de faisceau renferme au moins une lentille dont la réfringence peut être modifiée par une unité de commande électronique, et en ce que la lentille est une lentille à focale variable.
Also published as
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