Title:
LIGHT GUIDE LENS, LIGHT SOURCE MODULE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/059643
Kind Code:
A1
Abstract:
Disclosed are a light guide lens (2), a light source module containing the light guide lens (2), and a display device. The light guide lens (2) contains a main body (21) and a plurality of micro-structures (22). The main body (21) has a light incident surface (211) and a light emergent surface (212) on the opposite side of the light incident surface (211). The micro-structures (22) are formed on the light incident surface (211), and at least some of the micro-structures extend radially from a central point. The micro-structures (22) can guide light rays emitted from a light source (3), and after several instances of total reflection inside the main body (21), the light rays are emitted from the light emergent surface (212) at a relatively large angle, thereby increasing a light emergent angle of the light guide lens (2). Moreover, due to the guiding effect of the micro-structures (22), the light rays can be emitted from the light emergent surface (212) at a relatively large angle and in a relatively broad range without increasing the width of the main body (21), thereby effectively reducing the width and light mixing distance of the light guide lens (2).
Inventors:
TSAI SHU-AN (CN)
HUANG HUI-YU (CN)
LIU I-CHENG (CN)
HUANG HUI-YU (CN)
LIU I-CHENG (CN)
Application Number:
PCT/CN2015/099435
Publication Date:
April 13, 2017
Filing Date:
December 29, 2015
Export Citation:
Assignee:
RADIANT OPTO-ELECTRONICS (SUZHOU) CO LTD (CN)
RADIANT OPTO ELECTRONICS CORP (CN)
RADIANT OPTO ELECTRONICS CORP (CN)
International Classes:
F21V5/04
Foreign References:
CN205245081U | 2016-05-18 | |||
CN204494304U | 2015-07-22 | |||
CN103883975A | 2014-06-25 | |||
CN104048262A | 2014-09-17 | |||
CN104296067A | 2015-01-21 | |||
US9097956B2 | 2015-08-04 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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