Laser scanning apparatus with a positionable relay mirror
AssigneeSpectrum Sciences B.V.
InventorsShalom Peled, Abraham Greenberg, Haim Livne
Life of this patent
Estimating the term…
Abstract
Apparatus for optical imaging onto a moving surface including a movable surface for receiving an optical image, apparatus for measuring the movement of the surface and providing an surface movement reference signal, optical image producing apparatus operative to produce at least one scanning optical beam for scanning the surface and to provide timing reference signals, and a servo-controlled relay mirror located so as to reflect the at least one scanning beam onto the moving surface. The mirror is precisely positioned in response to the relationship between the substrate movement reference signals and the timing reference signals to ensure proper positioning of the optical image on the moving surface.
Claims18
Apparatus for optical imaging onto a moving surface comprising:
- a movable surface for receiving an optical image;
- means for measuring the movement of the surface and providing a surface movement reference signal;
- optical image producing means operative to produce at least one scanning optical beam for scanning said surface and to provide a timing reference signal, wherein during a given time period at least a portion of the surface is scanned;
- a positionable relay mirror located so as to reflect said at least one scanning optical beam onto the moving surface;
- positioning means responsive to the relationship between the surface movement reference signal and the timing reference signal for positioning said mirror to ensure proper placement of the optical scanning beam on the movable surface;
- and
- means for resetting the positionable relay mirror to a reference position at the end of the given period.
Apparatus for optical imaging onto a moving surface comprising:
- a movable surface for receiving an optical image;
- means for measuring the movement of the surface and providing a surface movement reference signal;
- optical image producing means operative to produce at least one scanning optical beam for scanning said surface and to provide a timing reference signal;
- a positionable relay mirror located so as to reflect said at least one scanning optical beam onto the moving surface without any intervening focusing elements;
- and
- positioning means responsive to the relationship between the surface movement reference signal and the timing reference signal for positioning said mirror to ensure proper placement of the optical scanning beam on the movable surface.
Dependencies are inferred from the claim text.