**Product Specifications:**
Brand: YIDUN
Model: QZ086
Lens Material: AC
Frame Material: PC
Lens Width: 56mm
Bridge Width: 18mm
Temple Length: 145mm
Suitable for: Unisex
Function: Blue Light Blocking
Weight: 19g
Certification: Patent No. 4801140, Patent No. 4728124
Patent Name: Optical Blue Light and Radiation Blocking Glasses, UV Coating Sunglasses
Inventor: Meirong Sheng
Patent Number: ZL.201520556719.3, ZL201520556646.8
Patent Application Date: July 29, 2015
Patent Owner: Nanchang YIDUN Technology Co., Ltd.
Patent Announcement Date: December 9, 2015
Patent Authorization Date: January 20, 2016
Patent Validity: 10 years from the announcement date
Maintenance: Annual fee due on July 29th each year
Features: Multi-functional lenses for nearsightedness, blue light protection, and UV light sensitivity
Design: Stylish and versatile frame suitable for various occasions
Additional Information: The specifications may vary slightly due to different measurement methods.
Please note that the information provided is based on the details given and may be subject to change or updates.
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