Title:
UNDERWATER LED LIGHT CONTROL DEVICE AND METHOD FOR SWITCHING BETWEEN FOCUSING OPERATION AND FLASH OPERATION
Document Type and Number:
WIPO Patent Application WO/2018/214632
Kind Code:
A1
Abstract:
An underwater LED light control device for switching the control between low-power focusing operation and high-power flash operation. The device is provided with a ring-shaped LED lamp base (10). Multiple LEDs (50) displaying two different colors and illumination intensities are spaced apart and arranged on a front side of a ring surface of the LED lamp base (10) along a circumferential direction. An upper portion of the LED lamp base (10) is provided with a battery compartment (20) and a main controller (30) connected to one side of the battery compartment (20). The main controller (30) comprises a main control circuit (31) and an optical signal conversion circuit (32) connected thereto. The optical signal conversion circuit (32) is provided with a photosensitive sensor PT. The photosensitive sensor PT is connected to a fiber cable introduced from outside of the main controller (30). In this way, low-power weak light is employed to assist focusing, and high-power strong light is employed for image capturing, thus enabling a low average operation power, long run-time, superior heat dissipation, and low cost.
Inventors:
LIU DAMOU (CN)
Application Number:
PCT/CN2018/080121
Publication Date:
November 29, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
SHENZHEN YU MEI MING TECH CO LTD (CN)
International Classes:
F21V19/00; F21V31/00; G03B15/02; G03B15/05; H05B44/00
Foreign References:
| CN107219707A | 2017-09-29 | |||
| CN207396943U | 2018-05-22 | |||
| CN201306669Y | 2009-09-09 | |||
| JP2008286982A | 2008-11-27 | |||
| JPH09211566A | 1997-08-15 | |||
| CN202600327U | 2012-12-12 | |||
| US6154610A | 2000-11-28 | |||
| CN202972562U | 2013-06-05 | |||
| JP2001033852A | 2001-02-09 |
Attorney, Agent or Firm:
COFORWARD IP FIRM (CN)
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