Esperanto
Shqiptare
Euskara
Zulu
Latinus
Cymraeg
தமிழ்
Slovak
Slovak
Afrikaans
The difference between Spherical Collimating Lens/ Focusing Lens
Posted on:
2021-04-14
Focusing Lens is one of the core accessories of laser equipment such as fiber laser engraving machine and cutting machine, marking machine, welding machine and so on. The function is to form a uniform focus point on the entire standard plane. Its main performance indicators are: focal length and scanning range. The focal position depends on both the focal length and the deflection angle; the scanning range is proportional to the focal length of the scene. After focusing, The spot diameter is proportional to the focal length, that is, when the scanning area reaches a certain level, the larger the spot diameter is.
Focusing Lens is an optical element that can compress divergent laser light in angular direction. Due to the large emission surface of the optical fiber, it is a diffused beam rather than a collimated or focused spot. The Fiber Laser Focusing Lens can effectively converge the beams at the end of the fiber and control the output beam in a small area. According to the requirements of different applications, two or more Focusing Lens can be used. This kind of optical element is called composite Focusing Lens. Sometimes an aspherical focusing lens is used. From the perspective of the use effect, the aspherical effect is the most effective. Well, followed by the compound Focusing Lens.
The role of Focusing Lens:
1. Improve the capability of detectors with edge speed of light incident;
2. In the same main optical system, the additional field lens will reduce the area of the detector. If the same detector area is used, the field of view can be enlarged and the incident flux can be increased;
3. The uniform illumination of the photosensitive surface of the detector can be homogenized.
Collimating Lens is generally used to compress the divergence angle of the diverging laser to achieve the application of parallel light transmission. The lens design and application are similar to focusing lenses. According to different needs, it can be single-piece, multi-piece composite or aspherical. Among them, the aspheric surface has the best effect, followed by the multi-piece composite type. Similarly, Collimating Lens is also one of the core accessories of fiber laser engraving machine and cutting machine, marking machine, welding machine and other laser equipment.
In order to improve the efficiency of fiber coupling and reduce the divergence angle of the beam, the fiber port needs to be equipped with fiber Collimating Lens. Collimating Lens has high beam collimation. After adjusting by the fiber collimator, the divergence angle of the beam does not exceed 2°
Features of Collimating Lens:
1, good consistency, working distance consistency greater than 99.5%.
2, high laser transmittance, high damage threshold, can be applied to 10000W laser;
3, good collimation effect, less than 1/10 wavelength.
Related Info
ADD: No. 521, Zhujiang Road, Huqiu District, Suzhou City, Jiangsu Province, China
Follow us