The application and working principle of 8 mm miniature slider linear stepper motors for lenses, as well as their advantages, is a comprehensive topic involving precision mechanics, electronics and optics. The following is a detailed description of this topic.
Application methods
1. Lens focusing system
8 mm micro-slider linear stepper motors are often used in lens focusing systems. In the conventional mechanical focusing method, the focal length is changed by rotating the lens barrel or moving the lens group. While the use of linear stepper motors can more accurately control the linear movement of the lens group on the optical axis, thus achieving faster and more accurate focusing.
2. Lens stabilisation system
In the video or photography process, due to hand shaking or other external factors, may lead to blurred images. For this reason, modern lenses are equipped with an anti-shake system. 8mm micro-slider linear stepper motors are ideal for anti-shake systems because of their high-precision linear motion control. The motor quickly detects and compensates for small movements due to hand shake, thus keeping images sharp.
3. Autofocus system
In an autofocus camera, an 8mm miniature slider linear stepping motor is responsible for driving the focusing mechanism, which automatically adjusts the focal length of the lens according to the distance of the subject. This motor is characterised by fast response speed and accurate positioning, which enables the focusing process to be completed quickly and improves shooting efficiency.
Working Principle
The working principle of the 8mm miniature slider linear stepper motor is based on the principle of electromagnetism. It is mainly composed of three parts: stator, mover and control system.
1. Stator
The stator usually consists of a number of electromagnets or coils, which are arranged in the motor casing according to a certain pattern. When current passes through the electromagnets or coils, a magnetic field is generated.
2. Actuator
The actuator is a slider with permanent magnets which can move freely inside the stator. When the electromagnet or coil in the stator is energised to produce a magnetic field, it interacts with the permanent magnets on the mover to move the mover in a straight line.
3. Control system
The control system is responsible for controlling the size and direction of the electric current, thus controlling the strength and direction of the magnetic field generated by the electromagnet or coil. By precisely controlling the current, precise linear movement of the actuator can be achieved.
Advantage Analysis
1. High precision
The 8mm miniature slider linear stepper motor has very high positioning accuracy and repeatable positioning accuracy. By precisely controlling the current size and direction, micron-level displacement control can be achieved to meet the needs of lens focusing, anti-shake and other precision movements.
2. High speed
Compared with the traditional mechanical transmission method, the 8mm miniature slider linear stepping motor has a faster response speed and higher motion speed. This enables the lens to quickly complete the focusing, anti-shake and other actions to improve shooting efficiency.
3. Low noise
As the linear stepper motor adopts electromagnetic drive mode, the noise generated during its operation is relatively low. This helps to reduce noise interference in the video or photography process and improve image quality.
4. High reliability
The 8 mm miniature slider linear stepper motor has a simple structure, easy maintenance, and high reliability and stability. This makes it widely used in precision optical equipment such as lenses.
5. Energy saving and environmental protection
Compared with the traditional mechanical transmission method, the 8 mm miniature slider linear stepping motor generates lower energy consumption during operation and does not require additional lubrication and cooling systems. This helps to reduce equipment operating costs and maintenance costs, while also contributing to environmental protection.
6. Easy to integrate
The 8mm miniature slider linear stepper motor is compact and lightweight, and is easy to integrate into various optical devices. At the same time, its control mode is flexible and diverse, and can be seamlessly connected with a variety of control systems, which is convenient for users to carry out customised development and application.
The application of 8 mm miniature slider linear stepper motor in the lens has the advantages of high precision, high speed, low noise, high reliability, energy saving and environmental protection and easy integration. With the continuous progress of science and technology and the continuous expansion of application areas, this motor will play a more important role in optical equipment.
Post time: Mar-12-2024