VISION-PROTECTING FILTER LENS
- 专利权人:
- 3M INNOVATIVE PROPERTIES COMPANY
- 发明人:
- Michael E. Hallock,Joy L. Manske,Britton G. Billingsley
- 申请号:
- US15532902
- 公开号:
- US20170363884A1
- 申请日:
- 2015.11.25
- 申请国别(地区):
- US
- 年份:
- 2017
- 代理人:
- 摘要:
- A vision-protecting filter lens, including a multilayer optical film and a neutral-density optical filter.
- 来源网站:
- 中国工程科技知识中心