Cylindrical Lens is 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 Cylinder Lens or plano-convex cylinderical lens configurations. Plano-Concave Cylindrical lens has a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylinder lens has a positive focal length, which makes the cylindrical lens ideal for collecting and focusing light for many imaging applications. Every sizes,materials cylindrical lens are available according to your detailed parameters.
Some styles of cylindrical lens have antireflective coatings to increase the transmission of light through the cylindrical lens.
Plano-Convex Cylindrical Lens,Plano Convex Cylindric Lens,Plano-Convex Cylinder Lens,Achromatic Cylindrical Lens China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com
Fused silica cylindrical lens is ideal for demanding laser machining and medical applications.
Specification of our plano-concave cylinder lens or plano-convex cylinderical lens, meniscus cylinder lens as follow:
*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
Notice on the declaration of the members of the fourth board of directors and above
Abstract Member companies: According to the regulations of the Association and the approval of the China Machine Tool Industry Association (hereinafter referred to as the “General Meetingâ€), the Superhard Materials Branch is scheduled to be renewed in 2009. The Association is a society approved by the Ministry of Civil Affairs of the People's Republic of China...
Member companies:
According to the regulations of the Association and the approval of the China Machine Tool Industry Association (hereinafter referred to as the “General Meetingâ€), the Superhard Materials Branch is scheduled to be renewed in 2009.
The Association is a social organization approved by the Ministry of Civil Affairs of the People's Republic of China. It is a national industry organization that is voluntarily participated by universities, research institutes, enterprises and institutions related to superhard materials and products. In accordance with the provisions of the Association's Articles of Association, in order to fully reflect the principle of voluntariness, the members of the membership are invited to apply for registration of the directors and above. After the registration is completed, it will be submitted to the third council for review and discussion, and then the fourth board of directors candidate list will be proposed, and the fourth member representative assembly will be recommended for the secret ballot election.
Members who wish to register are requested to mail or fax the registration form to the club secretariat by January 1, 2009.