The working principle of the laser homogenizing mirror, what is the principle of laser descaling

Using a diode-pumped laser as a light source, a high-collimation point light source can be emitted after a combination of lenses, and a light with uniform brightness can be formed after being dispersed by a special prism. Due to the use of a specially designed prism to diffuse light, effectively avoid the use of ordinary cylindrical lens to diffuse the light after the light intensity at both ends of the light is weak and the middle of the light intensity of the shortcomings, our company designed the reticle after the diffusion of light can make the two ends of the light and the middle of the brightness of the same (naked eye resolution), the power test results analysis of the two ends of the light intensity and the middle light intensity error within 3%, the naked eye can not distinguish the brightness difference. The light can be clearly distinguished at a distance of 50 meters, which effectively solves the work intensity of manual marking.

Focusing lens for laser marking machine.

In monochromatic light imaging, the image plane is a plane, and the image quality is consistent across the image plane, and the aberration is small, and there is no vignetting. For a certain incident light, the deflection velocity corresponds to a certain scanning speed, so a linear scan can be achieved with the incident light at an equal angular velocity. The deflection position of the incident beam is generally placed at the focal point in front of the object space, and the main ray of the image square is parallel to the optical axis, which can achieve the consistency of image quality on and off the axis to a large extent, and improve the uniformity of illumination, which is widely used in laser marking systems.

In the marking system, the laser beam passing through the focusing lens system will cause off-axis deflection, and abnormal images or distortions will appear on the marking surface relative to the ideal plane.

Focusing mirror, which is a professional lens system, aims to form a uniform size focused spot of the laser beam in the entire marking plane, and is one of the most important accessories of the laser marking machine. In the absence of distortion, the position of the focal point depends on the focal length of the lens and the tangent of the deflection angle, and the position of the focal point depends only on the focal length and deflection angle, thus simplifying the calculation method of focal positioning.

Beijing Jabil Chuangda Technology Co., Ltd. can provide users with laser marking, engraving, welding, cutting and dielectric diaphragms used in various lasers, and can also provide customized products of different sizes, different curvature radii, different wavelengths, and special film systems according to customer requirements, such as focusing mirrors, high-reflection mirrors, output mirrors, optical lenses, reflectors, windows, galvanometer lenses, beamsplitters, etc.

The pigment is usually implanted in the dermis, so it is permanent and cannot disappear on its own, so it is not very easy to remove the tattoo. Here are a few specific methods and how they work::

Laser** method.

It is to act on the affected area with a laser to break the pigment particles into tiny debris, which are discharged through ** scab removal, or blood circulation and cell phagocytosis to complete pigment metabolism. This method does not destroy the rest of the tissue, does not leave scars after surgery, and is the preferred method of tattooing, but the cost is slightly more expensive.

What material to harden? In general, the case hardening of metal materials is mainly focused on the surface with a specific laser, and the purpose of hardening is achieved by heating, similar to quenching.

The previous answer was taken for granted, but in fact this was achieved by dry boarding. A dry plate is a special film with a thickness that is first applied to the dry plate by interferometric imaging**, and the interference image is solidified after development and fixing. The interference image is a very fine black spot that will interfere when the laser is re-illuminated on the dry plate, forming the original pattern.

So it's actually an application of holographic imaging. You take out the "dot matrix lens", and the naked eye is just a plastic plate. If you use a set of optical lenses, it is not impossible, but the cost is much more expensive than holographic dry plates.

It is a glass sheet with two regular holes on the top or other sheets of similar material, which are particularly small.

It is also possible to have no rules.

If you move one of the two pieces with small holes on top of each other, the pattern of the laser passing through the holes will naturally change.

Understandable, right?

The refraction of light ...

A lens is used to amplify the beam.

It is to make the incident spot larger.

Compression laser divergence angle.

Makes the focus better.

Hunan rapid prototyping expert Huashu Hi-Tech tells you that the principle is that the computer controls the laser beam to scan the surface of the photosensitive resin as the raw material point by point, and the thin layer of resin (about tenths of a millimeter) in the scanned area produces a photopolymerization reaction and solidifies to form a thin layer of the part. The table is moved down a layer thickness distance so that a new layer of liquid resin is applied to the cured resin surface, and the next layer is scanned, and so on, until the entire prototype is built.