US Patent 7327378 Laser scanning unit
Patent 7327378 was granted and assigned to Samsung on February, 2008 by the United States Patent and Trademark Office.
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Patent abstract
A laser scanning unit includes a housing; an optical system disposed in the housing and including an optical source which emits a laser beam, a polygonal mirror which scans the laser beam, and a plurality of optical elements which image the laser beam on an image surface; a motor disposed in the housing and which rotates the polygonal mirror; and a motor drive chip disposed outside of the housing and which uses a sensorless algorithm to control a rotation speed of the motor.
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US Patent 07327378 Laser scanning unit US Patent 7327378 Laser scanning unit
Infobox
Patent Number
0732737800
Patent Number
732737800
Edits on 4 Apr, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073273780
Date of Patent
February 5, 2008
0Patent Application Number
107508940
Date Filed
January 5, 2004
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073273780
Date of Patent
February 5, 2008
0Patent Application Number
107508940
Date Filed
January 5, 2004
0Official Website
Patent Primary Examiner
Edits on 17 Jun, 2022
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US Patent 07327378 Laser scanning unit
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07327378
Date of patent
February 5, 2008
Patent application number
10750894
Date Filed
January 5, 2004
Patent primary examiner
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