Laser machine lens
Fiber Laser Machine Lenses
The lenses of laser machines are designed to focus and direct laser beams to the desired area (welding). The operation of these lenses is based on optical principles that involve the refraction of light and concentrating it on a specific point. Laser machine lenses are typically made from materials with a high refractive index to minimize light loss. The type of material and the geometric design of the lens can significantly affect the quality and precision of the welding or cutting process. You can purchase the best and highest quality laser machine lenses regarding lens material, anti-reflective coating, and surface smoothness from Novin San’at Parto Gostar Vanda for your laser welding and cutting machines.
Laser Lens Pricing
For details and prices of laser machine lenses, please contact our experts at Vanda (NSPV).
Types of Laser Lenses
Laser cutting and welding lenses are generally divided into three types:
- Convex Lenses: These lenses are used to focus laser beams and are typically utilized in high-precision welding applications.
- Focal Lenses: These lenses are specifically designed to create an accurate focal point.
- Aspheric Lenses: Due to their special design, these lenses can minimize optical distortion and enhance beam quality.
Among these lenses, convex and focal lenses are further specialized into lenses for cutting machines and automatic and manual laser welding machines. When selecting each of these lenses, attention should be paid to the following factors:
- Type of Laser Machine: Each laser machine uses a specific type of lens.
- Type of Material to be Cut or Welded: The material’s composition and thickness influence lens selection.
- Laser Power: The power of the laser also impacts lens selection.
- Required Precision: If high precision is desired, higher quality lenses should be used.
Laser Cutting Machine Lenses
As for the non-metal laser cutting lenses, CO2 laser lenses can be referenced:
- 1.5-inch Lens
- 2-inch Lens
- 2.5-inch Lens
- 3.2-inch Lens
- 3.75-inch Lens
- 4-inch Lens
Metal Laser Cutting Lenses
Metal cutting laser lenses consist of the following two types:
- Focusing Fiber Lens for Metal Cutting: The focusing lens collects laser light by adjusting the focal length, concentrating the laser beam’s energy into a very small point. This precise focus is essential for creating high-quality and accurate cuts in various metals. Choosing the appropriate focusing lens depends on parameters such as the thickness of the metal, the type of laser, and the desired cutting quality.
- Collimating Fiber Lens for Metal Cutting: The collimating lens converts diverging light from the optical fiber into a parallel and aligned beam. This process is a necessary prerequisite for many optical applications that require a light source with precise specifications. For example, in laser systems, the collimating lens enables the precise focusing of light onto a small point.
By purchasing the best and highest quality cutting lenses from reliable sources, you will increase cutting accuracy, enhance cutting speed, prolong the lifespan of the cutting machine, and improve the cut surface quality.
Laser Welding Lens
At Novin San’at Parto Gostar Vanda, for both manual and automatic laser welding machines, the laser beam exits the optical fiber and passes through collimating and focusing lenses, allowing it to concentrate on the work surface, resulting in successful welding operations.
Laser welding lenses are critical components in laser systems that are used to focus and direct the laser beam onto the workpiece surface. These lenses must possess specific features in comparison to cutting lenses in terms of materials, optics, and thermal properties, allowing them to perform well under challenging laser welding conditions.
The materials used in laser welding lenses typically include special glasses, quartz, and crystalline materials such as sapphire, which have a high refractive index and high resistance to heat and scratching. One of the most important characteristics of these materials is their high transparency at specific wavelengths of laser light (usually near infrared or ultraviolet). Anti-reflective coated glasses are used in this context, minimizing light reflection and improving beam transmission capability.
For welding with high-power lasers, it is essential to choose materials that can withstand intense thermal radiation and thermal stress. For example, collimating lenses such as the D20F50 model, made of BK7 glass or sapphire, are popular choices in laser welding lenses due to their low thermal expansion coefficient and high melting point.
Laser welding lenses must have precise optical characteristics to direct the beam to the appropriate focal point. Lenses used in laser welding are usually of the convex or convergent type that concentrate the laser beam into a small point.
One of the main challenges in designing these lenses is correcting spherical and chromatic aberrations. In laser welding systems, the lenses must have the capability to correct optical aberrations, as these aberrations can cause beam deviation and decrease focus at the focal point. To this end, composite or multi-layer lenses are used to control and reduce various aberrations.
Additionally, anti-reflective optical coatings are applied to the lens surfaces to optimize laser beam energy transmission and reduce energy loss. These coatings typically consist of metal oxides and are designed to minimize reflection at specific wavelengths.
For instance, the D20F50 collimating lenses are used by Novin San’at Parto Gostar Vanda in its manual and automatic laser welding heads. Laser welding is a process that operates at very high temperatures, and the lenses must withstand high temperatures and intense thermal radiation. Low thermal expansion and high thermal conductivity are two important properties that influence lens material selection. These properties help prevent cracking and warping of the lens due to heat.
Laser Cutting Lens Pricing
For details and prices of laser cutting machine lenses, please contact our experts at Vanda (NSPV).