Optical scanner
AssigneeHewlett-Packard Company
InventorDavid W. Boyd
Life of this patent
Estimating the term…
Abstract
An optical scanner device for producing machine-readable data representative of a color image of scanned objects including a narrow width, elongate light slit for enabling transmission of an imaging light beam from a narrow band portion of an object which is scanned; a lens for focusing the imaging light beam; a beam splitter for separating the imaging light beam into a plurality of color component beams; a purality of parallel, linear photosensor arrays located on a common sensor plane and spaced apart at equal intervals for accepting color component images; the light slit and lens being constructed and arranged whereby the width of each color component image on the common sensor plane is no more than about the interval spacing of the photosensor arrays and no less than about one-half the interval spacing of the pohotsensor arrays.
Claims10
An optical scanner device for producing machine-readable data representative of color images of scanned objects, comprising:
- (a) narrow width, elongate light slit means for enabling transmission of an imaging light beam from a narrow band portion of an object which is scanned;
- (b) lens means for focusing said imaging light beam;
- (c) beam splitter means for separating said imaging light beam into a plurality of color component beams;
- (d) a plurality of parallel, linear photosensor array means located on a common sensor plane and spaced apart at equal intervals for accepting color component images projected by said color component beams;
- and
- (e) said light slit means and said lens means being constructed and arranged whereby the width of each color component image on said common sensor plane is no more than about said interval spacing of said photosensor array means and no less than about one-half said interval spacing of said photosensor array means.
An optical scanner device for producing machine-readable data representative of color images of scanned objects, comprising:
- narrow width, elongate light slit means for enabling transmission of an imaging light beam from a narrow band portion of an object which is scanned;
- (b) lens means for focusing said imaging light beam;
- (c) beam splitter means for separating said imaging light beam into a plurality of color component beams;
- (d) a plurality of parallel, linear photosensor array means located on a common sensor plane and spaced apart at equal intervals for accepting color component images projected by said color component beams;
- and
- (e) the interval spacing of said linear photosensor array means being no less than approximately the width of said light slit means multiplied by the magnification of said lens means and being no more than approximately twice the width of said light slit means multiplied by the magnification of said lens means.
Dependencies are inferred from the claim text.