Scanning optical systems

Details Scanning optical systems Scanning optical systems

1995-07-07

1998-04-07

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359207, 359216, 359217, G02B 2608

Patent

active

057371121

ABSTRACT:
A scanning optical system that includes a light source for emitting a beam of light, a light deflector for deflecting the beam of light in the main scanning direction, and a scanning lens system which receives a beam of light deflected by the light deflector for focusing the deflected beam of light onto a scanning surface. At least one surface of a lens in the scanning lens system is formed in such a manner so as to have the cross-sectional shape of a non-circular arc in any sub-scanning plane so as to correct the spherical aberration of the scanning lens system in sub-scanning planes each extending parallel to the sub-scanning direction.

REFERENCES:
patent: 5005928 (1991-04-01), Suzuki et al.
patent: 5189546 (1993-02-01), Iizuka
patent: 5418639 (1995-05-01), Yamazaki
patent: 5453870 (1995-09-01), Iima

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