Title:
ILLUMINATOR FOR CLOSE-UP PHOTOGRAPHY, AND IMAGING DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/022598
Kind Code:
A1
Abstract:
An illuminator for close-up photography, and an imaging device comprising same. The illuminator comprises: a light guide (1), a small light source (2) and an illuminating circuit board (3); the light guide (1) is made of a transparent or semi-transparent material, the light guide (1) is arranged around the periphery of a camera module (4), the projections of the rear end of the light guide (1) and the camera module (4) partially overlap in length, the object-side end face of the light guide (1) extends forward beyond the object-side end face of the camera module (4), and the object-side end face of the light guide (1) comprises a light-emitting area (11); the small light source (2) is provided at the rear of the light guide (1) facing away from the object-side end face; and the illuminating circuit board (3) is a printed circuit board, and is electrically connected to the small light source (2). The invention can provide bright and uniform illumination for close-up photography, and avoid stray light interference caused by illuminating light directly entering the imaging lens during close-up illumination.
Inventors:
ZENG SHAOQUN (CN)
HU QINGLEI (CN)
LI NING (CN)
LI MENGTING (CN)
HUANG KAI (CN)
LI YAWU (CN)
HU QINGLEI (CN)
LI NING (CN)
LI MENGTING (CN)
HUANG KAI (CN)
LI YAWU (CN)
Application Number:
PCT/CN2019/104006
Publication Date:
February 11, 2021
Filing Date:
September 02, 2019
Export Citation:
Assignee:
CONVERGENCE TECH CO LTD (CN)
International Classes:
G02B6/00; G03B15/03; G02B13/00; G03B9/02
Foreign References:
| CN106681082A | 2017-05-17 | |||
| CN109407445A | 2019-03-01 | |||
| CN108681188A | 2018-10-19 | |||
| CN108463770A | 2018-08-28 | |||
| CN109788089A | 2019-05-21 | |||
| US20060093344A1 | 2006-05-04 |
Attorney, Agent or Firm:
WUHAN DONGYU PATENT AGENCY (CN)
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