https://blog.wongcw.com/2022/01/07/%e5%9b%a0%e7%94%b3%e8%ab%8b%e6%99%ba%e8%83%bd%e7%9c%bc%e9%8f%a1%e5%95%86%e6%a8%99spectacles%e8%a2%ab%e6%8b%92%ef%bc%8csnap%e5%b0%87uspto%e5%91%8a%e4%b8%8a%e6%b3%95%e5%ba%ad/