Optische Vorrichtung, Steuerungsverfahren dafür und Bilderzeugungsvorrichtung

Details

Veröffentlichungs-Nr.

EP2405306

Aktenzeichen

EP11171745

Anmeldetag

28. Juni 2011

Veröffentlichung

11. Mai 2016

Erteilung

11. Mai 2016

Rechtsraum

EP

IPC

G03G15/043G02B27/09

Abstract

An optical device (100) includes: a light source (208) including a plurality of light emitting spots that output laser beams, respectively; a separating unit (212) that separates each of the laser beams output from the plurality of light emitting spots into a monitor beam and a scanning beam; a light-quantity measuring unit (202, 218) that measures a light quantity of the monitor beam; a storage unit (412b) in which respective drive currents with which the plurality of light emitting spots of the light source (208) output a prescribed light quantity of laser beams are stored in advance; a light-source control unit (200, 204) that drives the light source (208) with the drive currents stored in the storage unit (412b) and causes the plurality of light emitting spots to output the laser beams; and a determining unit (200) that determines whether the light source (208) operates properly on the basis of the light quantity measured by the light-quantity measuring unit.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete