Title:
PICTURE FRAME HAVING PRESETTABLE LIGHT SPREADING EFFECT
Document Type and Number:
WIPO Patent Application WO/2022/222935
Kind Code:
A1
Abstract:
A picture frame having a presettable light spreading effect. A light casting member, upper light guide rims (4), and lower light guide rims (3) form a transverse light spreading channel, and the transverse light spreading channel encloses to form a light gathering groove (10). The lower light guide rim (3) extends out of a rim structure (2) in a direction relative to the light casting member to the light gathering groove (10), so that light emitted by the light casting member passes through a position above the rim structure (2) and is then evenly spread onto a surface of a bottom plate (7) below the light gathering groove (10). By setting of the width and area of the rim structure (2) and auxiliary setting of the width and area of the upper light guide rim (4) relative to the rim structure (2), it can be ensured that different spreading effects are implemented in different areas on the surface of the bottom plate (7) according to artistic requirements, satisfying various artistic display requirements, and solving the problem in the existing technology of obvious brightness boundaries and corresponding light spots produced due to the brightness of a central portion of the bottom plate (7) being obviously lower than the brightness of a peripheral portion; meanwhile, the overall thickness is also ensured to be thin.
Inventors:
MA FEI (CN)
Application Number:
PCT/CN2022/087781
Publication Date:
October 27, 2022
Filing Date:
April 19, 2022
Export Citation:
Assignee:
MA FEI (CN)
International Classes:
A47G1/14; A47G1/06; F21V33/00
Foreign References:
| CN113197472A | 2021-08-03 | |||
| CN212307425U | 2021-01-08 | |||
| CN101856186A | 2010-10-13 | |||
| CN101086584A | 2007-12-12 | |||
| CN202386310U | 2012-08-22 | |||
| US7661216B1 | 2010-02-16 | |||
| KR101730621B1 | 2017-04-26 |
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