Film image digitizer using optical fiber-coupled laser diode

Details Film image digitizer using optical fiber-coupled laser diode Film image digitizer using optical fiber-coupled laser diode

H - Electricity

04

N

H04N 1/04 (2006.01) H04N 1/028 (2006.01)

Patent

CA 2220142

A film image digitizer comprises a laser diode (14) for emitting a laser beam (15), an optical fiber (20), coupled to the laser diode (14), for transmitting the laser beam (15), a scanning mechanism for receiving the laser beam from the optical fiber (20) and scanning the laser beam across the sheet of film (12), and a light collection device (30) for detecting light transmitted through the sheet of film (12) in response to the scanning of the laser beam (15) across the sheet of film (12). A radio frequency oscillator (34) can be provided to modulate the laser diode (14) at radio frequencies to increase a spectral width of the laser beam emitted by said laser diode (14). The increased spectral width reduces interference generated by multiple reflections of the laser beam (15) within the sheet of film (12).

Un numérisateur d'image sur film comprend une diode laser (14) émettant un faisceau laser (15), une fibre optique (20) couplée à la diode laser (14) pour transmettre le faisceau laser (15), un mécanisme de balayage pour recevoir un faisceau laser de la fibre optique (20) et balayer le film (12) avec ce faisceau laser, et un dispositif (30) pour recueillir la lumière permettant de détecter la lumière transmise à travers le film (12) lors du balayage du film par le faisceau laser (15). Un oscillateur (34) HF peut être prévu pour moduler la diode laser (14) aux hautes fréquences afin d'augmenter la largeur spectrale du faisceau laser émis par ladite diode laser (14). L'augmentation de la largeur spectrale diminue les interférences générées par des réflexions multiples du faisceau laser (15) dans le film (12).

Affiliated with

Also associated with

Rating

Film image digitizer using optical fiber-coupled laser diode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Film image digitizer using optical fiber-coupled laser diode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film image digitizer using optical fiber-coupled laser diode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1704604