G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 27/58 (2006.01) B23K 26/06 (2006.01) G02B 5/18 (2006.01) G02B 27/09 (2006.01) G02B 27/44 (2006.01)
Patent
CA 2296746
The invention concerns an optical device for focusing a light beam, comprising: a Fourier diffractive element (2, 14), for separating an incident beam (6) into n beams (10-1, 10-2, 10-3, 10-4, 10-5, 18, 20), along n directions symmetrical relative to an optical axis (AA', BB'); a diffractive element (4, 22) comprising n components (4-1, 4-2, ..., 4-8) for re-focusing the n beams on the optical axis, each of said n components comprising a continuous series of Fresnel lenses with different focal lengths. Such an optical device can be integrated into a laser cutting device.
L'invention concerne un dispositif optique de focalisation d'un faisceau lumineux, comportant: un élément diffractatif de Fourier (2, 14), qui permet de séparer un faisceau incident (6) en n faisceaux (10-1, 10-2, 10-3, 10-4, 10- 5, 18, 20), suivant n directions symétriques par rapport à un axe optique (AA', BB'), un élément diffractif (4, 22) comportant n composants (4-1, 4-2, ..., 4-8), permettant de refocaliser les n faisceaux sur l'axe optique, chacun desdits n composants comportant une suite continue de lentilles de Fresnel de distances focales différentes. Un tel dispositif optique peut être intégré dans un dispositif de découpe laser.
Granjean Jean-Paul
Kress Bernard
Meyrueis Patrick
Twardowski Patrice
No associations
LandOfFree
Diffractive optics with synthetic aperture and variable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diffractive optics with synthetic aperture and variable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffractive optics with synthetic aperture and variable... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1854977