Light beam scanner

A light beam scanner, comprising:

• light source means for generating a light beam;
• recording means for receiving said light beam emitted from said light source means;
• scanning means for scanning said recording means in a predetermined position thereof by deflecting said light beam emitted from said light source means;
• a fluorescent optical fiber, arranged to be aproximately perpendicular to a scanning direction of the light beam as defined by said scanning means, for generating fluorescent light in response to said light beam, said fluorescent optical fiber being arranged in a predetermined position on a scanning plane of said scanning means, wherein said fluorescent optical fiber is positioned forward of said recording means with respect to a scanning direction of said light beam;
• and
• photodetector means, arranged on at least one end face of said fluorescent optical fiber, for receiving said fluorescent light generating within said fluorescent optical fiber, said photodetector generating an output at least indicative of said predetermined position of said recording means being scanned,
• wherein a scanning operation by said scanning means is controlled based on at least said output of said photodetector means.