Title:
補正装置、補正方法及びプログラム
Document Type and Number:
Japanese Patent JP6696313
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simultaneously detect optical axis deviation of light from a plurality of colors of laser sources and correct the deviation while drawing an image.SOLUTION: A correction device comprises a light source drive unit which generates a drive signal by superpositioning a superposition signal different in frequency from a video signal on the video signal and a plurality of laser sources are driven using the drive signal, a synthesis unit which synthesizes light emitted from the plurality of laser sources, a light receiving unit which receives light synthesized by the synthesis unit and outputs a light receiving signal corresponding to the light receiving position, a separation unit which separates the light receiving signal, and a correction unit which corrects optical axis deviation of at least one laser source on the basis of the separated signal and accords optical axes of light from the plurality of laser sources.SELECTED DRAWING: Figure 1
Inventors:
Katsuhiro Koike
Application Number:
JP2016120376A
Publication Date:
May 20, 2020
Filing Date:
June 17, 2016
Export Citation:
Assignee:
Nippon Seiki Co., Ltd.
International Classes:
G02B26/10; G09G3/02
Domestic Patent References:
| JP201615610A | ||||
| JP201522096A |
Foreign References:
| US20110176068 | ||||
| CN105900166A |
Attorney, Agent or Firm:
Kimura Mitsuru
Kazuyuki Sugimoto
Yuta Kobayashi
Kenro Shirai
Takuji Harada
Kazuyuki Sugimoto
Yuta Kobayashi
Kenro Shirai
Takuji Harada