Light beam scanning system

Details Light beam scanning system Light beam scanning system

1992-01-09

1993-04-06

Ben, Loha

Optical: systems and elements

Deflection using a moving element

359201, 359216, 2502012, 250235, 358496, G02B 2608

Patent

active

052008495

ABSTRACT:
A light beam scanning system for scanning an object with a light beam emitted from a light source to record or read images includes a lattice plate disposed in a position equivalent to a scanning plane of the light beam and extending in a primary scanning direction. The lattice plate includes a plurality of light transmitting sections each having a width substantially corresponding to a diameter of the light beam in an in-focus position. Photodiodes or the like are provided to detect quantity of the light beam having passed through the light transmitting sections of the lattice plate. Since the detected quantity of the light beam is correlated with focus displacement of the light beam, amounts of focus displacement of the light beam at different points in the primary scanning direction are determined from the detected quantity of the light beam. When recording an image, the quantity of the light beam is adjusted based on the determined amounts of focus displacement to equalize print line widths at different points in the primary scanning direction.

REFERENCES:
patent: 4216378 (1980-08-01), Monette
patent: 4585938 (1986-04-01), Neumann et al.
patent: 4638156 (1987-01-01), Horikawa et al.
patent: 4647145 (1987-03-01), Maeda et al.
patent: 4853535 (1989-08-01), Suganuma
patent: 5012089 (1991-04-01), Kurusu et al.

Affiliated with

Also associated with

Rating

Light beam scanning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light beam scanning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light beam scanning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-540766