BK7 Bi-convex Lenses,N-BK7 Bi-convex Lenses,bi-convex lens,bi convex lens,focal length of biconvex lens
Our company can produce many kinds of flat convex Spherical Mirrors with different sizes, radii and base materials, flat convex spherical Mirrors, flat concave spherical mirrors, double convex spherical mirrors, double concave spherical mirrors, meniscus spherical mirrors and other ordinary spherical mirrors. Special spherical mirror can also be processed, such as: achromatic spherical mirror, aspheric surface and spherical mirror group.
Bk7 Bi-Convex Lenses,Cover Slips For Slides,Coverslips Microscope,Bi Convex Lens Diagram Gold Dragon Optics Electronic Technology CO.,Ltd , https://www.golddragon-optics.com
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Materials: optical glasses such as flint glass, ultraviolet fused quartz and infrared fused quartz, as well as optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), Zinc selenide (ZnSe) and silicon (Si)
Focal length: ±5mm -- ±1000mm±1%
(Germany TIROPTICS OPTOMATIC2000 test)
Outer circle: 4mm -- 200mm±0.1mm
Center thickness tolerance: ±0.1mm
Center deviation: 3-5 points
Surface accuracy: /2@
Surface quality: 40/20
Effective diameter: 90%
Plating film: according to customer requirements can be coated
In addition, we have more than a thousand kinds of standard products, and some of the standard products in stock to meet your needs
U.S. continues to impose anti-dumping duties on Chinese wooden bedroom furniture for 5 years
The Chinese Ministry of Commerce issued a warning on the 2nd. On November 30, 2010, the US International Trade Commission decided to continue to maintain the existing anti-dumping tax order on wooden bedroom furniture exported to the United States by the sunset. The implementation period is still 5 years.