There are two methods of using the antistatic agent: a coating method and a blending method. The coating method has the advantages of quick effect, low material consumption, low heat resistance requirement of antistatic agent, etc., but the antistatic effect cannot be sustained. After washing and rubbing, the antistatic agent coating will disappear. The blending method has the advantages of washing resistance, friction resistance, long-lasting antistatic effect, and simple use method. (1) Coating method operation points The coating method is divided into four steps of cleaning and dispensing, coating and drying. (1) Cleaning In order to obtain a uniform and dense antistatic coating film, the surface of the plastic must be cleaned before the antistatic coating is applied to completely remove surface dust and grease. It can be washed with a neutral detergent solution of about 1 inch. After cleaning, it needs to be placed in a clean room and dried. (2) The solution is formulated with ethanol, ester or water to form an antistatic agent into a solution of 0.2 to 2O. The concentration of the solution is as thin as possible under the premise of ensuring antistatic effect, because the solution with high concentration will be emitted. Sticky, easy to absorb dust. (3) Coating The coating method is selected according to the shape of the product, etc., and the usual coating methods include direct method, diffuse method, and spray method. The direct method is to apply an antistatic agent solution to the product using tools such as cotton cloth, flannel, brush and roller. It is simple, effective and widely used. The dipping method is to immerse the product in an antistatic agent liquid, which is suitable for small articles having a complicated shape or a large number. The sputum coating method is to spray the antistatic agent liquid on the product with a spray gun, which has the advantages of high speed, high efficiency, uniform coating film and the like. (4) The dried coated product should be sufficiently dried to harden the coating layer, and it needs to be dried for about 3 hours at a temperature of 30-40 ° C and a humidity of 60-80. After drying, it should be placed under natural environmental conditions for 5 hours. (2) Operation points of the blending method In the blending method, an antistatic agent is mixed with a resin and then processed to form an antistatic product. Commonly used antistatic agents are cationic and zwitterionic. The antistatic agent is a hygroscopic compound and contains a certain amount of water. In the plastic molding process, the presence of a small amount of water causes the quality of the product to decrease, so the antistatic agent should be sufficiently dried before being added to the resin. It can be dried for 4 hours under hot air at 70-80 °C. The amount of the antistatic agent to be added should be determined according to the properties of the antistatic agent itself, the type of the resin, the processing conditions, the form of the product, and the degree of antistatic effect. The amount of the antistatic agent is generally 0.3 to 3O. Thin articles are added in less quantity than articles.
Meniscus cylinder Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus cylinder Lens is used to increase the focal length of another Cylindrical Lens while maintaining the angular resolution of the optical assembly. This lens shape is best used when one conjugate is relatively far from the cylindrical lens.
Some styles of cylindrical lenses have antireflective coatings to increase the transmission of light through the lens.
Negative Meniscus cylinder lens
Positive Meniscus cylinder Lens
Specification of our meniscus cylinder lens or Plano-Convex Cylindrical Lens as follow: Meniscus Cylinder Lens,Optical Glass Meniscus Cylinder Lens,Meniscus Spheric Lens,Meniscus Cylindrical Lens China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com
Fused silica cylinder lenses are ideal for demanding laser machining and medical applications.
*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