Laser Beam Scanning System Using Acousto-Optic Deflectors And Its Application To Fundus Imaging

This paper reports a laser-beam scanning system applicable for the imaging of the human eye fundus. The system uses an AOD for the horizontal deflector of the high scanning frequency corresponding to the NTSC standard television. The optical dispersion due to the AOD is compensated with an electronic signal processor and the colbr imaging is achieved. The color variations due to fundus layers of the human eye are observable under illumination of low light.