Title:
SPECTACLE FRAME
Document Type and Number:
WIPO Patent Application WO/2018/153358
Kind Code:
A1
Abstract:
A spectacle frame provided with a complete frame line (1). An asymmetric design is used on oblique angles of the frame line of the spectacle frame, and consists of an α angle and a β angle of unequal angle values. The angle value of the α angle is 30° to 70°, the angle value of the β angle is 20° to 45°; a proportion of the angle value of the α angle to the angle value of the β angle is greater than 1 and less than 3.5. The width of the frame line is less than 6 mm; the groove depth of the frame line is less than or equal to 0.6 mm. The spectacle frame has a strong retention force for a lens (2), and can effectively reduce the distortion of the lens; when a lens made of a resin material contracts due to a temperature change, the lens retention force of the spectacle frame can effect reduce the contraction form change of the resin lens.
Inventors:
YAMAUCHI RYUJI (CN)
Application Number:
PCT/CN2018/077145
Publication Date:
August 30, 2018
Filing Date:
February 24, 2018
Export Citation:
Assignee:
YAMAUCHI TRADING CHINA LTD (CN)
International Classes:
G02C5/02
Foreign References:
| CN206557490U | 2017-10-13 | |||
| CN204331165U | 2015-05-13 | |||
| CN206863368U | 2018-01-09 | |||
| CN204229055U | 2015-03-25 | |||
| CN201796194U | 2011-04-13 | |||
| JPH0519211A | 1993-01-29 |
Attorney, Agent or Firm:
WAN HUI DA INTELLECTUAL PROPERTY AGENCY (CN)
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