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What are the differences between Aspheric Collimating Lens/ Focusing Lens
Posted on:
2022-03-02
Lasers are single-wavelength light sources with good coherence properties and are widely used in scientific research and industry. Laser optics generally refers to optical components and devices used in the internal and external optical paths of lasers, such as laser focusing mirrors, mirrors, beam expanders, laser cutting heads, etc.
Aspheric Collimating Lens/ Focusing Lens is one of the core accessories of fiber laser engraving machine and laser equipment such as cutting machine, marking machine and welding machine. The function is to form a uniform focal 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 declination 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 obtained spot diameter is larger.
Aspheric Collimating Lens/ Focusing Lens is an optical element that can compress the divergent laser in the angular direction. Due to the large emission surface of the fiber, it is a diffuse beam rather than a collimated or focused spot. Fiber laser focusing mirrors can effectively focus the beams at the end of the fiber together and control the output beam in a very small area. According to the requirements of different applications, two or more focusing lenses can be used, and this optical element is called a compound focusing lens, and sometimes aspheric focusing lenses are also used. , followed by the compound focusing lens.
Spherical Collimating Lens/ Focusing Lens: Focusing lens used in fiber laser optical systems, the base material is fused silica material, and the double-sided coating is coated with a translucent film. In order to reduce spherical aberration as much as possible, we usually recommend customers to use a double-piece combined spherical lens .
Aspheric Collimating Lens/ Focusing Lens: Focusing lens used in fiber laser optical systems, the base material is fused silica material, and both sides are coated with anti-reflection coating. Based on aspheric applications, spherical aberration will not be introduced in the transmission wavefront and the limit diffraction will be achieved Performance, single-piece aspherical lenses can completely replace traditional multi-piece spherical combination lenses. From the base material to processing and coating, we strictly control the quality of the lenses to ensure that we provide customers with the highest quality lenses. These lenses are widely used in laser cutting , laser welding, laser cladding, laser quenching, etc.
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