CN2794721Y - Girdling light guide system - Google Patents

Abstract

The utility model discloses a girdling light guide system, which comprises a laser, a reflecting mirror, a scanning oscillation mirror and a collecting mirror. The utility model is characterized in that a telescope composed of two lens is arranged between the laser and the reflecting mirror; the focus points of the two lens are in the same axial cord; the interval of two focal lengths is 0.5 mm to 40 mm. The utility model has the advantages that the focus points of the two lens are in the same axial cord, and the interval of the two focal lengths can be adjusted in a range of 0.5 mm to 40 mm; thereby, the light spot can be controlled at a required size when a flight light path is in a definite distance range.

Description

Waist light guide system

technical field

The utility model relates to a light guide system, in particular to a waist-shaped light guide system suitable for laser flight light path processing.

Background technique

In laser processing, the existing flying optical path generally forms a plane transmission in space. Due to the existence of the laser divergence angle, in actual use, the optical path diverges, and the light spot at the far end gradually becomes larger, so that it cannot be fully entered. Machined mirrors, thus limiting the size of the working plane.

Contents of the invention

The purpose of the utility model is to overcome the disadvantages of the prior art and provide a waist-shaped light guide system in which the spot size of the flying optical path system can be controlled within the allowable range.

The technical scheme of the utility model is: a waist-shaped light guide system, which includes a laser, a reflector, a scanning galvanometer and a condenser, and is characterized in that a telescope composed of two lenses is placed between the laser and the reflector , the focal points of the two lenses are on the same axis, and the distance between the two focal lengths is 0.5-40mm.

The beneficial effects of the utility model are: since the focal points of the two lenses are on the same axis, and the distance between the two focal lengths is adjustable within the range of 0.5-40mm, the flying optical path can be controlled within a certain distance range, and the light spot can be controlled at the required size superior.

Description of drawings

Figure 1 is a schematic diagram of the optical path of the waist-shaped light guide system.

Detailed ways

As shown in Figure 1, a beam waist-shaped light guide system includes a laser 1, a reflector 3, a reflector 4, a scanning galvanometer 5 and a condenser mirror 6, and it is characterized in that a laser is placed between the laser 1 and the reflector 3 There is a telescope 2 composed of two lenses, the focal points of the two lenses 7 and 8 are on the same axis, and the distance L between the two focal lengths f ₁ and f ₂ is 0.5-40 mm. The light emitted by the laser 1 passes through the telescope 2, the mirrors 3 and 4, and then passes through the scanning galvanometer 5 with a variable reflection angle to the condenser mirror 6. The focal length of the two lenses of the telescope is adjusted to make the light beam waist between the three mirrors , so that the size of the spot after the condenser can be controlled.

Claims (1)

1, a kind of shape light-conducting system with a tight waist, it comprises laser instrument (1), speculum (3,4), scanning galvanometer (5) and condenser (6), it is characterized in that, between laser instrument (1) and speculum (3), be equipped with the telescope of forming by two lens (2), the focus of described two lens (7,8) on same axis, two focal distance f ₁, f ₂Separation L is 0.5～40mm.