Optische Ablenkeinrichtung und Bildanzeigevorrichtung

Details

Veröffentlichungs-Nr.

EP2924485

Aktenzeichen

EP15158672

Anmeldetag

11. März 2015

Veröffentlichung

1. März 2023

Erteilung

1. März 2023

Rechtsraum

EP

IPC

G02B7/182G02B26/08G02B26/10H01L41/09

Abstract

An optical polarization device includes a mirror (2) having a reflective surface; a pair of meander-shaped beam portions (4) to rotatably support the mirror (2), each meander-shaped beam portion (4) having a plurality of beam portions (4a, 4b) alternately connected at folding-back sections to form a meander shape; a plurality of piezoelectric members (5a, 5b) provided on the respective beam portions (4a, 4b) and applied with voltage waveforms to deform the respective beam portions (4a, 4b), accumulated deformation of the respective beam portions (4a, 4b) causing mirror (2) to rotate; and a voltage controller (22) to individually adjust a driving frequency of each of the voltage waveforms applied to the respective piezoelectric members (5a, 5b).

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete