Title:
LIGHT SOURCE DEVICE FOR INSTRUMENT FOR ALLEVIATING FUNDUS LESIONS IN DIABETES MELLITUS
Document Type and Number:
WIPO Patent Application WO/2017/113724
Kind Code:
A1
Abstract:
Provided is a light source device for an instrument for alleviating fundus lesions in diabetes mellitus, wherein same solves the problem that the irradiation shape of an illumination region from an existing light source is not suitable for an instrument for alleviating fundus lesions in diabetes mellitus. The light source device comprises: a light-emitting apparatus (1); a light guide plate (2) located in the same plane as the light-emitting apparatus (1) and is provided with a light field region and a non-light-field region; a light guide dot array (3) arranged in the light field region; and a light absorption layer (4) arranged in the non-light-field region. By arranging the light absorption layer (4) in different shapes, the shape of the illumination region is effectively and automatically determined, and uniform light is achieved by means of the effect of the light guide plate (2), so that the light source device is extremely suitable for an instrument for alleviating fundus lesions in diabetes mellitus. Moreover, the optimally designed light guide dot array (3) can not only effectively and greatly increase the light uniformity, but can also effectively avoid dark and bright spots in the light field region, and further improves the effect of alleviating fundus lesions in diabetes mellitus.
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Inventors:
DUAN WENFENG (CN)
ZENG XIAOJUN (CN)
CHEN ZHIQING (CN)
ZENG XIAOJUN (CN)
CHEN ZHIQING (CN)
Application Number:
PCT/CN2016/089399
Publication Date:
July 06, 2017
Filing Date:
July 08, 2016
Export Citation:
Assignee:
CHENGDU KANGTUOBANG TECH CO LTD (CN)
International Classes:
A61N5/06; A61F9/007; F21S6/00; F21V8/00; F21W131/20; F21Y115/10
Domestic Patent References:
| WO2014159691A1 | 2014-10-02 |
Foreign References:
| CN105570762A | 2016-05-11 | |||
| US20070225778A1 | 2007-09-27 | |||
| CN201643438U | 2010-11-24 |
Attorney, Agent or Firm:
CHENGDU XINGZHI PATENT AGENCY(ORDINARY PARTNERSHIP) (CN)
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