Title:
AUTOMATIC FOCUSING METHOD FOR PROJECTOR AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2019/037326
Kind Code:
A1
Abstract:
A projector (80) and an automatic focusing method therefor. The projector (80) comprises a lens (81) that can move back and forth along an optical axis, and a drive motor (82) that drives the lens to move. The automatic focusing method for the projector (80) comprises the following steps: S11, obtaining an optimal projection position of the lens (81) corresponding to a clearest projection image; S12, driving, by means of the drive motor (82), the lens (81) to move from a current position to the optimal projection position. The automatic focusing method for the projector (80) and the projector (80) can quickly realize automatic focusing of projection; the user experience is good, and the method is simple.
Inventors:
LUO WEIHUAN (CN)
LI YI (CN)
LI YI (CN)
Application Number:
PCT/CN2017/114732
Publication Date:
February 28, 2019
Filing Date:
December 06, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/53; G02B7/36
Foreign References:
| CN104570568A | 2015-04-29 | |||
| CN105842972A | 2016-08-10 | |||
| CN106154721A | 2016-11-23 | |||
| CN102591121A | 2012-07-18 | |||
| KR20150091645A | 2015-08-12 | |||
| JP2011065186A | 2011-03-31 |
Download PDF:
Previous Patent: ENERGY-SAVING STABILITY MOTION CONTROL METHOD FOR NETWORKED AUTOMOBILE QUEUE
Next Patent: LIGHT SOURCE SYSTEM AND PROJECTION DEVICE
Next Patent: LIGHT SOURCE SYSTEM AND PROJECTION DEVICE