Laser galvanometer system employing two lenses for unifying direction of emergent light and incident light

Abstract

The invention discloses a laser galvanometer system employing two lenses for unifying direction of emergent light and incident light. The system includes an X-axis galvanometer used for enabling lightbeams going into the X-axis galvanometer and light beams reflected by the X-axis galvanometer to have a 90-degree included angle and rotating along the light beams going into the X-axis galvanometerso as to enable the light beams reflected by the X-axis galvanometer to change emergent direction in a plane perpendicular to the light beams going into the X-axis galvanometer; a Y-axis galvanometerused for adjusting the light beams reflected by the X-axis galvanometer through reflecting and rotating so as to enable the light beams going into the X-axis galvanometer to be in the same direction with the light beams reflected by the Y-axis galvanometer. The system has beneficial effects that direction unifying can be achieved through the two scanning galvanometers; the lens reflection efficiency is improved; light transmission loss and external heat generation of the galvanometers in a reflection process are reduced; integral assembly precision is improved; optical path debugging difficulty is reduced; long term operation stability and reliability of the scanning galvanometers are improved; and the integral manufacture cost is saved since the scanning galvanometers are low in weight and small in size.

Description

technical field [0001] The invention relates to the field of laser technology, and relates to a laser vibrating mirror system, in particular to a laser vibrating mirror system with two mirrors entering and exiting light in the same direction. Background technique [0002] The optical path of laser scanning galvanometers currently on the market generally adopts a horizontal side light input and a downward vertical light output mode. However, it is very inconvenient to use this way of entering and exiting light in the fields of laser cosmetology and laser medical treatment, and it is more convenient to require the direction of incident light and outgoing light to be in the same direction. [0003] In the existing technology, there are mainly two technologies that can realize the way of entering and exiting light in the same direction: [0004] The first method is: use the galvanometer assembly that originally enters the light from the horizontal side and exits the light verti...

AI Technical Summary

Problems solved by technology

Although this three-mirror vertical incident galvanometer system can meet the requirements for the use of medical beauty scanning galvanometers, it uses 45-degree lens reflection to change the light from vertical to horizontal, which increases the reflection of light once. Reflection also produces light loss and additional heat, and it is more complicated during the production, installation and debugging of the scanning galvanometer, especially when the volume of the scanning galvanometer assembly is relatively small, it is very difficult to install and adjust

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