Patent US5995281A successfully refreshed from Google Patents.
US5995281A
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Device for coupling the radiation of short-pulse lasers in an optical beam path of a microscope
Assignee: Carl Zeiss Microscopy GmbH
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Filing: 1997-10-09
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Granted: 1999-11-30
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Expires: 2017-10-09
Abstract
Abstract A device for coupling in the radiation from short-pulse lasers into a beam path of a microscope provides that the coupling in is effected by at least one light conducting fiber following the laser. In particular, the device is directed to the coupling in of short-pulse lasers with pulse durations in picoseconds to femtoseconds in a laser scanning microscope by light conducting fibers.
Inventors
- 👤 Ulrich Simon
- 👤 Ralf Wolleschensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:54
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/002; G02B21/0024; G02B21/0032; G02B21/008; G02B21/0084
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, the optical arrangement containing the combination of a diffraction grating, a reflector system and a mirror or the combination of a diffraction grating and two reflector systems, and a laser beam is guided four times by the same diffraction grating.
Claim 2
Independent Claim
101 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, the optical arrangement containing the combination of a diffraction grating, a reflector system and a mirror or the combination of a diffraction grating and two reflector systems, and a laser beam is guided four times by the same diffraction grating.
Claim 3
Dependent Claim
28 words
The device according to claim 1, wherein the coupling in is effected in a confocal beam path and an end of the fiber is imaged on an object.
Claim 4
Dependent Claim
14 words
The device according to claim 1, wherein the microscope is a laser scanning microscope.
Claim 5
Dependent Claim
18 words
The device according to claim 1, wherein the coupling in is effected via at least one monomode fiber.
Claim 6
Independent Claim
123 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, wherein the optical arrangement includes the combination of only one rotatable diffraction grating, a retro-reflector system and a mirror, or includes the combination of a rotatable diffraction grating and two retro-reflector systems, and a beam is guided four times by the same diffraction grating, and the optical arrangement can be adjusted to a desired laser wavelength merely by rotating the one grating.
Claim 7
Independent Claim
123 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, wherein the optical arrangement includes the combination of only one rotatable diffraction grating, a retro-reflector system and a mirror, or includes the combination of a rotatable diffraction grating and two retro-reflector systems, and a beam is guided four times by the same diffraction grating, and the optical arrangement can be adjusted to a desired laser wavelength merely by rotating the one grating.
Claim 8
Independent Claim
158 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, wherein the arrangement includes the combination of a diffraction grating, a reflector system and a mirror, wherein a beam is guided four times by the same diffraction grating, and the amount of dispersion is varied by changing a distance between the diffraction grating and the reflector system, or the arrangement includes the combination of a diffraction grating and two reflector systems, and wherein a beam is guided four times by the same diffraction grating, and the amount of dispersion is varied by changing a distance between the diffraction grating and one or both of the reflector systems.
Claim 9
Independent Claim
158 words
A device for coupling in radiation from a short-pulse laser into a beam path of a microscope, comprising that the coupling in is effected by at least one light-conducting fiber following the laser, wherein an optical arrangement is provided between the laser and the at least one light-conducting fiber for changing laser pulses with respect to time in a wavelength-dependent manner, wherein the arrangement includes the combination of a diffraction grating, a reflector system and a mirror, wherein a beam is guided four times by the same diffraction grating, and the amount of dispersion is varied by changing a distance between the diffraction grating and the reflector system, or the arrangement includes the combination of a diffraction grating and two reflector systems, and wherein a beam is guided four times by the same diffraction grating, and the amount of dispersion is varied by changing a distance between the diffraction grating and one or both of the reflector systems.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
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