This section introduces you to five shots and explains their scope of application.
*Application range of manual and automatic iris lens The manual aperture lens is the simplest lens. It is suitable for the condition that the illumination condition is relatively stable. The manual aperture is composed of several metal foils. The luminous flux is adjusted by a ring on the outer diameter of the lens. Rotate this circle to make the aperture smaller or larger. In environments with large changes in lighting conditions or not to monitor a fixed target, an automatic iris lens should be used. For example, where outdoor or artificial lighting is frequently switched, the aperture of the auto iris lens is driven by a motor, and the motor is controlled by The video signal of the camera. The manual iris lens and the auto iris lens have a fixed focal length (aperture) lens auto iris lens and a power zoom lens.
* Fixed focal length (aperture) lens, generally matched with electronic shutter camera, suitable for indoor monitoring of a fixed target. Fixed focal length lenses are generally divided into long focal length lenses, medium focal length lenses and short focal length lenses. The medium focal length lens is a lens with a focal length close to the imaging size; a short focal length lens is called a short range lens, and a short focal length lens is also called a wide angle lens. The focal length of the lens is usually less than 28 mm, and the short focal length lens is mainly used for ambient lighting conditions. Poor, wide range of surveillance requirements, focal length is larger than the imaging size called long focal length lens, long focal length lens, also known as telescope head, the focal length of this type of lens is generally more than 150mm, mainly used to monitor distant scenes.
*Manual iris lens, which can be used with the electronic shutter camera and can be used in all kinds of light.
*Auto iris lens (EF) can be used with any CCD camera and can be used in all kinds of light, especially for places where the brightness of the monitored surface changes greatly and the range is large. In order to avoid causing halo and burning out the target surface, an auto iris lens is generally used.
* Power zoom lens, can be used with any CCD camera, can be used in a variety of light, zoom lens is through the remote control device for light focus, aperture opening, change the focal length.
Rectangular Magnets are six-sided magnet with straight sides where all angles are right angles (90°). Opposite sides of the magnet are parallel. They are commonly used in holding applications where they fit within a channel to increase their holding force. We carry a selection of different shapes and sizes and can manufacture magnets to our customers' specifications.
These Sintered NdFeB magnets are particularly suitable for high volumn production of a wide variety of shape and size ranges. Ni, Zn or customized coated surface protection. Precise dimensional control is achieved in both processed and usually the component does not require futher machining. NdFeb magnets have been widely used in high performance stepper, DC, servo, and linear motors, actuators, loudspeakers, headphones, instrumentation, switches, relays, magnetic imaging for medical and geophysical applications, holding systems, magnetic bearings, magnetic couplings, hard disk drives, etc.
Neodymium Rectangular Magnets are very strong, but very sensitive to temperature and corrosion. To combat temperature we can help you to select the grade that is appropriate for the operating temperature that you may require. To combat corrosion, neodymium magnets are coated on the outside. Most commonly they will be coated with nickel-copper-nickel, but can also be coated with epoxy, gold and parylene.
It is important to know that neodymium magnets are very hard and brittle and can break if they are dropped. Neodymium magnets can be assembled into products that use strong adhesives, but contact surfaces should all be clean and dry before bonding.
Block (or bar) magnets have completely flat surfaces that are perpendicular (at right angles) to each other, and are available in all scales from cubes through to long rectangular prisms.
The dimensions for blocks are Length x Width x Height (mm).
Block magnets feature straight edges and are available in all proportions from cubes through to flat rectangular bars. Rare Earth blocks are available in sizes from approx 6mm length up to 100mm length, with pull strengths exceeding 100kg.
Rectangular Magnets
Rectangular Magnets,Neodymium Rectangular Magnets,N35 Rare Earth Ndfeb Neodymium Rectangular Magnet
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