Key points for selecting laser focusing mirrors and laser field mirrors
When choosing laser marking airport mirrors, three aspects of matching should be considered:
1. Matching with the equipment used
2. It should be matched with the marking requirements
Of course, we should also cooperate with the galvanometer, so when you purchase it, you must make a choice based on the following aspects.
1、 How long wavelength field lens is needed?
The wavelength can generally be matched with the machine, and many customers do not know how many wavelengths their machine has. Generally speaking, we use the following waves:
Non metallic machine, using carbon dioxide field mirror, typically 10.6 microns: f-theta scanning field mirror carbon dioxide 10.6 microns
Semiconductor machines, typically used for marking metal materials, with a wavelength of 1064 nm: Choose f-theta scanning field mirrors with a wavelength of 1064 nm series
Laser engraving machines, green laser machines, and field mirrors are mostly 532nm wavelength: choose the f-theta scanning field mirror 532nm series
High precision laser marking machine, wavelength is basically 355 nm: choose F-Theta scanning field mirror 355 nm series
2、 What size of field lens is needed for the light spot?
The vibrating mirror of our marking machine usually has a spot size of 12 millimeters, so the selection of the field mirror is usually 12 millimeters. Some customers use vibrating mirror welding machines, and the vibrating mirror of the welding machine usually uses a large light spot, such as 20mm, 25mm, 30mm, etc., so we need to choose to match the equipment. At present, there are often problems with domestic mirror welding machines, mainly due to the small spot size of the matching mirror, making it difficult to find a large spot mirror, and under the condition of bearing high power of the welding machine, small spot mirrors are easily burned out.
3、 What size of field lens is needed?
Many customers want to buy a large-sized field lens that can be used in a wide range. Small products are suitable, and large products are also suitable. However, customers often forget a problem: the larger the size of the mirror, the greater the corresponding focal length and working distance of the field lens, resulting in greater laser energy loss and attenuation in the air. In other words, the larger the focal length, the thicker the material lines, and the shallower the surface. Therefore, the size is suitable for the requirements of the logo material and lines, and cannot be blindly pursued for size.
4、 What is the required focal length for the field lens?
Under the same format, due to differences in the design and processing capabilities of the field lens, the focal length of the field lens often appears in the same format, but with different focal lengths. Ruicheng Optoelectronics believes that if the width is the same, the smaller the focal length F, the better. Of course, the initial design process is different, and infinitely short is not the best. We must pursue a field lens that is as short as possible, because the deeper the marker, the thinner the line.
5、 What size of threaded field lens is required?
We know that below the ammeter is the contact lens, so the thread of the magnetic field mirror must be suitable for the ammeter. The threads of the vibrating mirror generally include M85 * 1, M82 * 1, M79 * 1, M58 * 1, M55 * 1, etc. The most common one is M85 * 1, and the interface used for the imported SCANLAB vibrating mirror thread is M79 * 1. What if you can't find the corresponding mirror? Another way to solve this problem is to find a thread conversion interface, which is typically used by label cabinet manufacturers.
1. Matching with the equipment used
2. It should be matched with the marking requirements
Of course, we should also cooperate with the galvanometer, so when you purchase it, you must make a choice based on the following aspects.
1、 How long wavelength field lens is needed?
The wavelength can generally be matched with the machine, and many customers do not know how many wavelengths their machine has. Generally speaking, we use the following waves:
Non metallic machine, using carbon dioxide field mirror, typically 10.6 microns: f-theta scanning field mirror carbon dioxide 10.6 microns
Semiconductor machines, typically used for marking metal materials, with a wavelength of 1064 nm: Choose f-theta scanning field mirrors with a wavelength of 1064 nm series
Laser engraving machines, green laser machines, and field mirrors are mostly 532nm wavelength: choose the f-theta scanning field mirror 532nm series
High precision laser marking machine, wavelength is basically 355 nm: choose F-Theta scanning field mirror 355 nm series
2、 What size of field lens is needed for the light spot?
The vibrating mirror of our marking machine usually has a spot size of 12 millimeters, so the selection of the field mirror is usually 12 millimeters. Some customers use vibrating mirror welding machines, and the vibrating mirror of the welding machine usually uses a large light spot, such as 20mm, 25mm, 30mm, etc., so we need to choose to match the equipment. At present, there are often problems with domestic mirror welding machines, mainly due to the small spot size of the matching mirror, making it difficult to find a large spot mirror, and under the condition of bearing high power of the welding machine, small spot mirrors are easily burned out.
3、 What size of field lens is needed?
Many customers want to buy a large-sized field lens that can be used in a wide range. Small products are suitable, and large products are also suitable. However, customers often forget a problem: the larger the size of the mirror, the greater the corresponding focal length and working distance of the field lens, resulting in greater laser energy loss and attenuation in the air. In other words, the larger the focal length, the thicker the material lines, and the shallower the surface. Therefore, the size is suitable for the requirements of the logo material and lines, and cannot be blindly pursued for size.
4、 What is the required focal length for the field lens?
Under the same format, due to differences in the design and processing capabilities of the field lens, the focal length of the field lens often appears in the same format, but with different focal lengths. Ruicheng Optoelectronics believes that if the width is the same, the smaller the focal length F, the better. Of course, the initial design process is different, and infinitely short is not the best. We must pursue a field lens that is as short as possible, because the deeper the marker, the thinner the line.
5、 What size of threaded field lens is required?
We know that below the ammeter is the contact lens, so the thread of the magnetic field mirror must be suitable for the ammeter. The threads of the vibrating mirror generally include M85 * 1, M82 * 1, M79 * 1, M58 * 1, M55 * 1, etc. The most common one is M85 * 1, and the interface used for the imported SCANLAB vibrating mirror thread is M79 * 1. What if you can't find the corresponding mirror? Another way to solve this problem is to find a thread conversion interface, which is typically used by label cabinet manufacturers.