Cylinder Lenses are offered in both plano-concave and plano-convex configurations, they are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylinder Lenses are available with positive or negative focal lengths, they are used for the optics, lasers, medical science, electronics, tele-communication and others.
Worldhawk can provide various kinds of cylindrical lens with high precision, We are proud to be one of the few suppliers can detection the radius and flatness about the cylindrical lens in China. Absolutly can ensure all the products are qualified.
Cylindrical Lenses,Aspheric Cylindrical Lenses,Optical Cylindrical Lenses,Optical Aspheric Cylindrical Lenses ChangChun Worldhawk Optics Co.,Ltd , https://www.worldhawk-optics.com
1, strengthen management. During the hottest hours of the day, large livestock such as pigs and cattle can have a cool place to rest. Poultry such as chickens and ducks can use shade nets and should try to eat in cooler times.
2, cooling water bath. In hot weather, wash the body once a day with cool water on the afternoon. The chicken can use the water to flush the roof and flush the ground. But pay attention to prevent colds. At night, the pigs were driven to the stadium for the night and during the day they took a cold or rest in the playground with a pergola and hurried into the house at noon.
3, increase the number of clean drinking water, promote body heat distribution.
4, to strengthen ventilation. Open the doors and windows of the barn, strengthen the air convection, and discharge indoor heat.
Second, strengthen the epidemic prevention health work
1, feed hygiene. If feeds are not fed with spoilage, feed fermentation time should not be too long, and feed intake should be accurately controlled to avoid leftovers.
2, drinking water hygiene. Drink clean cold water as much as possible, and keep the sink or drinker clean to prevent drinking water.
3, barn health. We must do a good job in environmental sanitation, make the inside and outside of the barn clean, clean the breeding tools, clean the keeper's clothes, and regularly disinfect the barn and sports ground. Prevent the occurrence of SARS and various diseases.
Worldhawk can offer cylinder Lenses include convex Cylindrical Lens, concave cylindrical lens, Meniscus Cylindrical Lens, and Doublet Achromatic Cylindrical Lens ect. Choose from N-BK7 glass, UV fused silica, or CaF2, all of which are available uncoated or with an antireflection coating.
First, do a good job of cooling