Optische Deflektorvorrichtung, Bilderzeugende Vorrichtung, Bildanzeigevorrichtung, Bewegliche Körpervorrichtung und Einstellungsverfahren einer Optischen Deflektorvorrichtung

Details

Veröffentlichungs-Nr.

EP2962984

Aktenzeichen

EP15174412

Anmeldetag

30. Juni 2015

Veröffentlichung

18. September 2019

Erteilung

18. September 2019

Rechtsraum

EP

IPC

B81B3/00G02B26/08G02B26/10

Abstract

An optical deflection apparatus includes: a moving part having a reflection surface; a supporting part swingably supporting the moving part around one axis and having tortuous parts having respective plural beams connected in series to each other in a tortuous manner; and a plurality of piezoelectric members separately provided on the respective beams. Further, two drive signals having predetermined waveforms are respectively applied in parallel to two piezoelectric members separately provided on the beams adjacent to each other, and at least one mechanical resonance frequency of a system including the moving part and the supporting part is included in a frequency band where signal intensities of high-frequency components of the two drive signals become local minimum values.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete