Light beam scanning system
AssigneeFuji Photo Film Co., Ltd.
InventorMasaru Noguchi
Life of this patent
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Abstract
In a light beam scanning system, a plurality of laser beams emitted by a plurality of semiconductors are combined into a single laser beam, and the single laser beam is deflected to sweep a surface-to-be-scanned. The oscillation wavelengths of the semiconductor lasers are selected so that the oscillation wavelengths .lambda.i and .lambda.j of any two of the semiconductor lasers satisfy the formula .vertline..lambda.i-.lambda.j.vertline..gtoreq..lambda.i.lambda.jM/c wherein M and c respectively represent the picture element frequency and the velocity of light.
Claims2
A light beam scanning system in which laser beams emitted by a plurality of semiconductor lasers are combined into a single laser beam and the single laser beam is caused to sweep a surface-to-be-scanned, characterized in that the oscillation wavelengths of the semiconductor lasers are selected so that the oscillation wavelengths .lambda.i and .lambda.j of any two of the semiconductor lasers satisfy the formula
- .vertline..lambda.i-.lambda.j.vertline..gtoreq..lambda.i.lambda.jM/c
- wherein M and c respectively represent the picture element frequency and the velocity of light.
Dependencies are inferred from the claim text.