FOB Price
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Minimum Order
Localité:
Dongguan
Prix de commande minimale:
-
Commande minimale:
1000
Packaging Detail:
-
Delivery Time:
-
Supplying Ability:
100000
Payment Type:
-
Personne àcontacter David
No.228,Guanzhang Road, Dongguan, Guangdong
concave lens
Concave lens that possesses at least one
surface that curves inwards. It is a diverging lens, spreading out
those light rays that have been refracted through it. A concave
lens is thinner at its centre than at its edges, and is used to
correct short-sightedness
(myopia).
Key Specifications/Special Features:
concave
lens
Specifications:
Materials: Bk7, quartz, Caf2, crystal
Diameter: 5 to **0mm
Diameter tolerance: 0.*1mm to 0.1mm
Edge thickness: 1mm +/*0.*0mm
Focal length: 0.1% to 2%
Surface quantity: *0/*0 to *0/*0
Centration: 1 to 3 arc minutes
Fringes: 1 to 5
Coating: No or AR.
Welcome to order our customized concave lens.
