Cylindrical lenses have at least one surface that is formed like a portion of a cylinder.Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism,stretching a point of light into a line.They are available in either plano-concave or plano-convex configurations. Plano-Concave Cylindrical lenses have a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.
Some styles of cylindrical lenses have antireflective coatings to increase the transmission of light through the lens. Fused silica cylinder lenses are ideal for demanding laser machining and medical applications.
Plano-convex cylinder lens,Plano-Concave Cylinder Lens,Double-Convex Cylinder Lens,bi-concave cylinder lens,Meniscus Cylinder Lens, Rod Cylinder Lens ,Achromatic cylinder lens are available.
Specification of our cylinderical lens as follow: Double Convex Lens,Bi-Concave Irregular Cylindrical Lens,Double-Concave Cylindrical Lens,Dcv Cylindrical Lens China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com
In the morning, Xiamen City held a signing ceremony for docking projects, and 20 outstanding projects were signed on-site. The total investment of the project was over 30 million yuan. Including the precision carbide coating tool project of Xiamen Jinlu Special Alloy Co., Ltd. and Xiamen University, with a total investment of 61.51 million yuan. 
*Material: BK7,Ge,UV-grade fuse silica(JGS1,JGS2,JGS3)or other optical materials
*Dimension Tolerance: +0.0 -- -0.1mm
*Center Thickness: +/-0.1mm
*Focal Length Tolerance: +/-1%
*Surface Quality:20/10
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture>90%
*Chamfer: 0.25mm at 45 degree typical
*Coating Optional
Xiamen Jinlu and Xiamen University cooperate with cemented carbide tooling project
On June 18th, the 6th “China·Strait Project Achievements Fair†was opened in Fuzhou. Xiamen City has organized more than 1,000 enterprises and more than 4,000 people to participate in the negotiations.