Title:
SPECTACLES
Document Type and Number:
WIPO Patent Application WO/2018/214688
Kind Code:
A9
Abstract:
Spectacles, comprising: a lens (1) and a sensing device (2). The lens (1) is formed by combining two opposite lenses in an enclosed manner, and the lens closest to the eye is deformable. A cavity is provided in the lens (1) and is filled with a first liquid (4) and a second liquid (5), and the volume of the first liquid (4) is greater than that of the second liquid (5). A middle area of an inner surface of at least one of the lenses is oppositely provided with electrowetting film (3). The sensing device (2) is configured to measure the distance between the spectacles and an observed object. If the measured distance is less than a preset distance, the sensing device (2) connects an output voltage to the electrowetting film (3), the first liquid (4) converges at the center of the lens (1), the second liquid (5) converges at two edges of the lens (1), and the lens (1) switches to a convex lens; otherwise, the sensing device (2) cuts off an output voltage to the electrowetting film (3), the second liquid (5) converges at the center of the lens (1), the first liquid (4) converges at two edges of the lens (1), and the lens (1) switches to a concave lens. By using the spectacles, people suffering from both myopia and hyperopia do not need to carry two pairs of spectacles, and do not need to switch between spectacles, providing great convenience and reducing eye strain.
Inventors:
WANG QI (CN)
WANG TINGTING (CN)
WANG TINGTING (CN)
Application Number:
PCT/CN2018/084126
Publication Date:
January 03, 2019
Filing Date:
April 23, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)
BEIJING BOE DISPLAY TECH CO (CN)
International Classes:
G02B3/14; G02C7/08
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
Download PDF: