Projektionsanzeigevorrichtung, Projektionsanzeigeverfahren und Programmaufzeichnungsmedium

Details

Veröffentlichungs-Nr.

EP2506573

Aktenzeichen

EP12161632

Anmeldetag

28. März 2012

Veröffentlichung

30. Juni 2021

Erteilung

30. Juni 2021

Rechtsraum

EP

IPC

H04N9/31

Abstract

A projection unit (17) projects the optical image formed by the optical image formation unit (13-16, 28) toward a projection target. A temperature detection unit (29-31) detects a temperature of each type of the semiconductor light emitting elements (18, 26, 27) during light emission. A measurement unit (28) measures an intensity of light from each type of the semiconductor light emitting elements (18, 26, 27) during light emission. A light emission control unit (34) (a) corrects a measurement result from the measurement unit (28) using a detection result from the temperature detection unit (29-31) and (b) controls the light emission intensity for each of the semiconductor light emitting elements (18, 26, 27) based on the corrected measurement result.

Anmelder

Firma

Casio Computer Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete