The best verification of design and construction quality is also the best support for the improvement of design and construction. At present, a Russian construction company has conceived a very simple "rotating tower to connect the hub of the water supply line" and obtained a patent certificate. Gas, drainage, hot and cold water, etc. are supplied from pipes fixed to the axis of the rotating tower. Brushed reducers for electrical, telephone and other communications can also be fixed here.
The water supply, drainage, and gas input pipes are connected to the pipe through a rotating plug and a special sealing device, and the pipes coaxially connected to each other can rotate together with the floor; at the same time, the movable The plug and the connecting tube remain in place. In the narrowest central duct (through the central duct and throughout all the branches of the rotating building), it is possible to input people such as hot water.
A large diameter external relay reducer is connected to the drain line. For the management of the entire structure, it is only necessary to periodically observe the condition of all the oil seals and fasten the nuts to avoid leakage. Although this technology has been patented, people must be mused: the value is not worth building a rotating building. If they are not too complicated, and the price is not too expensive, then some construction is also possible. Here you can take the restaurant on the Ostankin TV Tower as an example. It has three rotating ring-shaped floors, people like the JL very much, because people can enjoy the natural scenery and the appearance of the city while enjoying a meal, so that people can feel refreshed and feel comfortable, so rotate the restaurant or hotel. Although it is not the first necessity in life, it can attract people's interest.
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.
Fused silica cylinder lenses are ideal for demanding laser machining and medical applications.
Negative Meniscus cylinder lens
Positive Meniscus cylinder Lens
Specification of our meniscus cylinder lens or Plano-Convex Cylindrical 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
Meniscus Cylinder Lens,Optical Glass Meniscus Cylinder Lens,Meniscus Spheric Lens,Meniscus Cylindrical Lens
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com