Double Concave Lens
- Company Name:ChangChun YuTai Optics.Co.,Ltd
- Membership:Free Member
- Member Since:2018. 11.06
- Country/Region:China
- City:Jilin
- Contact:Daisy Dong
- Related Keywords:Biconcave lens, concave lens, BK7 LENS, double concave lens
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ChangChun YuTai Optics.Co.,Ltd
[China]
A double-concave lens is compose of two concave surface, has a negative focal length and are best used to diverge a converging beam. Similar to a plano-concave lens, a bi-concave lens can diverge a collimated beam to a virtual focus like a beam expander.
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