# JYOPTO — First Surface Mirrors & Coated Glass

> JYOPTO manufactures first surface mirrors and coated optical glass in Hangzhou,
> Zhejiang, China. Parts are laser-cut from substrate to +/-0.01 mm, vacuum coated,
> ultrasonically cleaned and fully inspected. The site publishes in nine languages
> and maintains 300 technical articles on the product range and its applications.

## Core pages

- [Home](https://firstsurfacemirror.cn/): product overview and company profile.
- [Technical specifications](https://firstsurfacemirror.cn/specs): common specifications and standard sizes.
- [Applications](https://firstsurfacemirror.cn/applications): manufacturing capabilities and application fields.
- [About](https://firstsurfacemirror.cn/about): company background.
- [Blog](https://firstsurfacemirror.cn/blog/): 300 technical articles, newest first.

## Products

- Enhanced-aluminium, protected-silver and protected-gold mirrors
- Dielectric high-reflectance and broadband dielectric mirrors
- Cold mirrors and hot mirrors
- UV mirrors and IR mirrors
- Laser line mirrors
- Polarising and non-polarising beamsplitters
- Optical windows, optical flat blanks and concave mirrors

## Applications

Laser processing, fluorescence microscopy, astronomy, medical laser, lithography,
automotive LiDAR, projection, spectroscopy, metrology, machine vision, AR/VR,
defence and space, optical communication, life-science instruments.

## Company facts

- Legal entity: Hangzhou Jingyu Optoelectronic Technology Co., Ltd. (杭州晶宇光电科技有限公司)
- Founded: 2020-04-03
- Employees: around 40
- Facility: self-owned plant of over 3,000 m2
- Production chain: substrate cold processing -> vacuum coating -> ultrasonic cleaning -> 100% final inspection
- Languages on site: English, Chinese, Japanese, Korean, Arabic, French, German, Spanish, Russian

## Contact

- Email: ling@jyopto.cn
- Phone / WhatsApp / WeChat: 86-17826803493

## Optional

- [RSS feed](https://firstsurfacemirror.cn/feed.xml) — latest 40 articles
- [Full machine-readable facts](https://firstsurfacemirror.cn/llms-full.txt)
- [Media resources](https://firstsurfacemirror.cn/newsroom/)