The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1997
Filed:
Jan. 13, 1995
Hiroyuki Hiiro, Kanagawa-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
A laser beam source radiates out laser beams such that they may intersect one another with predetermined angular spectra on a predetermined virtual plane. A Fourier transform lens array optical system, which is located in the vicinity of the virtual plane, divides the laser beams having impinged upon the virtual plane into small regions and carries out Fourier transform of the small regions. Phase modulators modulate the phases of the laser beams divided into the small regions such that the wave fronts of the laser beams after being subjected to the Fourier transform may have the same phase with respect to a predetermined direction as a whole. A scanning drive device drives the phase modulators such that the directions of travel of the laser beams radiated out of the Fourier transform lens array optical system may be changed. A first resonator mirror is located at a position that receives the scanned laser beams. A second resonator mirror is located at a position rearward from the laser beam source.