Title:
投写方向変更装置および画像投写システム
Document Type and Number:
Japanese Patent JP7417935
Kind Code:
B2
Abstract:
A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.
Inventors:
Takaaki Abe
Ken Masuya
Masamoto Masumoto
Ken Masuya
Masamoto Masumoto
Application Number:
JP2020041942A
Publication Date:
January 19, 2024
Filing Date:
March 11, 2020
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G03B21/28; G03B21/00; G03B21/14; H04N5/74
Domestic Patent References:
| JP2001305651A | ||||
| JP2002262198A | ||||
| JP2016224120A | ||||
| JP2009002982A | ||||
| JP2017203919A | ||||
| JP2011150160A | ||||
| JP2017169195A | ||||
| JP2010113114A | ||||
| JP2006189685A | ||||
| JP2015158619A |
Foreign References:
| US20020105623 | ||||
| CN107367894A |
Attorney, Agent or Firm:
Michiko Matsutani
Hiroshi Okabe
Hiroshi Okabe
Previous Patent: Asphalt modification material
Next Patent: Active noise reduction device and active noise reduction method
Next Patent: Active noise reduction device and active noise reduction method