Title:
PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/071868
Kind Code:
A1
Abstract:
The present invention provides a projection device, comprising a housing, a lens, a lens cover, and a switch assembly; the lens cover is rotatable along the switch assembly; the switch assembly has a first state of being initial and a second state of driving the lens cover to stretch in an axial direction; when the switch assembly is in the second state, the projection device is powered on, and when the switch assembly is in the first state, the projection device is powered off. When the projection device having such a structure is to be powered on, the lens cover needs to be pulled outwardly while being rotated to open or being translated to not block the lens so as to power on the projection device, avoiding the misoperation of power on the projection device caused by rotation of the lens cover in the prior art; moreover, when the switch assembly is in the second state, the lens cover is not in contact with the housing, preventing the lens cover from blocking a heat dissipation opening and affecting heat dissipation, improving performance and reliability of the product, providing good user experience.
Inventors:
DAI YOUNA (CN)
LI YI (CN)
LI YI (CN)
Application Number:
PCT/CN2018/071416
Publication Date:
April 18, 2019
Filing Date:
January 04, 2018
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/14
Foreign References:
| CN1862367A | 2006-11-15 | |||
| CN103676421A | 2014-03-26 | |||
| CN1432862A | 2003-07-30 | |||
| CN106901485A | 2017-06-30 | |||
| CN101498882A | 2009-08-05 | |||
| CN205176464U | 2016-04-20 | |||
| US20090040476A1 | 2009-02-12 |
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