Patent ID: 11921273
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  A  H | IPC A  G  H

Claim 1:
2. A two-photon excited fluorescence microscope comprising:
a light source configured to generate a laser beam;
a pulse compressor configured to compress a pulse of the laser beam;
an objective lens configured to provide the laser beam to a specimen; and
image sensors configured to receive the laser beam and obtain images of the specimen,
wherein the pulse compressor comprises:
a grating plate configured to disperse the laser beam;
a corner cube provided on a first side of the grating plate and configured to reflect the laser beam to the grating plate; and
a retroreflector provided on a second side of the grating plate and configured to re-reflect the laser beam, which has been transmitted through the grating plate, to the corner cube and the grating plate, and
wherein the grating plate comprises:
a first diffraction region;
a second diffraction region spaced apart from the first diffraction region;
a third diffraction region between the second diffraction region and the first diffraction region; and
a fourth diffraction region between the third diffraction region and the first diffraction region.