The Laser pointer often encounters problems such as focusing during use. There are three common easy methods to determine the position of the laser high point: printing method: make the cutting head of the laser cutting machine move from top to bottom, and perform laser beam printing on the plastic plate. The spot with the smallest print diameter is the focus. Inclined plate method: Use a plastic plate placed obliquely at an angle to the vertical axis to pull it horizontally to find the smallest point of the laser beam as the focus. Adjustable flashlight, by adjusting the laser focus to achieve the best thermal effect. The light of the laser, after being adjusted by the head lens of the flashlight, will form a focus at a certain position on the head of the flashlight. Generally, the focus range of the laser is the best within 1 meter outside the light exit. The focal position is best adjusted to the range of 10-20 cm from the light exit, which means that the laser has the strongest thermal effect at the focal point formed in this range.
The laser pointer processing field, specifically, a laser processing head with adjustable spot diameter and focus position and its control method. It includes a housing, characterized in that: a laser emitting device, a first optical component, a second optical component, a third optical component, a fourth optical component, and a protective lens are sequentially arranged in the housing from top to bottom. The laser emitting device is vertically fixed on the top of the casing, the emitting port of the laser emitting device is embedded in the casing, one side of the first optical component is connected to the first motor through the first connecting device, and the third optical component is One side is connected to the second motor through the second connecting device, and one side of the fourth optical component is connected to the third motor through the third connecting device.