Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2008-04-25
2010-12-28
Cherry, Euncha P (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
Reexamination Certificate
active
07859734
ABSTRACT:
A light scanning device includes: a light source which emits a light beam; an oscillating mirror which oscillates rotationally to reflect the light beam; an optical system which is configured to convert the light beam reflected by the oscillating mirror to be scanned over a scanning line on a target at a constant speed when an oscillation amplitude of the light beam by the oscillating mirror is a reference value; a detection unit which detects the light beam at least one position; a modulation controller which controls modulation of the light beam based on external data; and a timing correction unit which corrects a modulation timing based on two consecutive detection times of the light beam detected by the detection unit and detection times of the light beam detected by the detection unit when the oscillation amplitude is the reference value.
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patent: 6937372 (2005-08-01), Kandori et al.
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patent: 05-127109 (1993-05-01), None
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Office Action received for JP2007-117089 with a mailing date of Dec. 16, 2008.
Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Cherry Euncha P
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