google cardboard BaF2 red dot sight lens

BaF2 Optical lens specification:

Tian Cheng Optics Co., Ltd. is located in Changchun city where is famous base of optics research and development in China, we dedicate to designing and manufacturing high quality precision optical components including Lenses, High Precision Prism, Filter, Window, Beamsplitter, Mirror, Waveplate, Polarizer, Polarization Beamsplitter, Micro optics, they are widely used in industrial application, medical industry, construction, telecommunications, military, environment monitoring, life sciences, public security, aerospace etc. We have built well cooperation with some companies from United Kingdom,Germany, Ireland, Sweden, Australia, Brazil, U.S.A. etc.

1> Q: Where is your factory located ? How can i visit there ?

  A: Our factory is located in Chaoyang district Changchun city Jilin province China, about 3 hours bus ride from Shanghai. All our clients, from home or abroad, are warmly welcome to visit us !

2> Q: What's the material of your products ?
  A: The material is optical glass and plastic .

3> Q: If I place an order now, how long would it be before I got delivery ?
  A: It would largely depend on the size of the order and the items you want .

4> Q: How can I get some samples ?
  A: We are honored to offer you samples .