Optical scanning device, driving method for optical scanning device, and image drawing system

By deriving drive conditions that keep actuator frequencies within specific ranges, the optical scanning device stabilizes image drawing in micromirror devices, addressing issues of unstable image areas caused by resonance frequency exceedance.

JP7612521B2Active Publication Date: 2025-01-14FUJIFILM CORP
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Patent Information

Application Number
JP2021092418
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-01
Publication Date
2025-01-14
Estimated Expiration
2041-06-01

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Abstract

To provide an optical scanning device capable of stably drawing an image, and also to provide a method of driving the optical scanning device, and an image drawing system.SOLUTION: A drive control part performs the steps of: applying a first drive signal having a first drive frequency to a first actuator which swings a mirror part around a first axis; applying a second drive signal having a second drive frequency to a second actuator which swings the mirror part around a second axis intersecting with the first axis; and deriving a first drive condition of the first actuator whose first drive frequency is less than a first resonance frequency around the first axis.SELECTED DRAWING: Figure 8
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Citation Information

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