Patent ID: 7221503
Filing Date: 2007-05-22
Classification: G01N,G02B

Abstract:
1. A laser confocal scanning microscope comprising: means, including a laser light source, for emitting laser light beams at different wavelengths; a beam path for directing said laser light beams from said laser light beam emitting means to an object stage for supporting an object, said beam path including an electronic control and imaging system adapted to control the laser light beam emitting means to emit individual laser light beams sequentially at selected wavelengths and adapted to dynamically adjust drive parameters of said acousto-optical deflector by dynamically controlling the start frequency and end frequency of the acousto-optical deflector in such a way as to maintain a constant line scanning position at all input beam wavelengths and dynamically controlling the rate of frequency change of the drive signal to the acousto-optical deflector in such a way as to obtain a constant lensing effect at all input beam wavelengths, to maintain alignment of the scan lines of the image at all wavelengths.