Title:
画像投影装置及び画像投影方法
Document Type and Number:
Japanese Patent JP7000878
Kind Code:
B2
Abstract:
An image projection apparatus including a light source; an optical element configured to form an image by modulating a light emitted by the light source; a movable portion to which the optical element is attached, the movable portion being movably supported; a position detector configured to detect a position of the movable portion; a projector configured to project the image formed at a predetermined position by using the position detected by the position detector; and a controller configured to execute calibration with respect to the position detector, and to execute at least one of turning off the light source before executing the calibration in response to the light source being on, and turning on the light source after the calibration is executed.
Inventors:
Yoshito Hosodo
Application Number:
JP2018011972A
Publication Date:
January 19, 2022
Filing Date:
January 26, 2018
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03B21/14; G03B21/00; H04N5/74
Domestic Patent References:
| JP2018009895A | ||||
| JP2008015452A | ||||
| JP2011197688A | ||||
| JP2017130713A | ||||
| JP2007183304A | ||||
| JP2012256000A |
Foreign References:
| WO2015098120A1 | ||||
| US20070076171 |
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