A red light indicating device with adjustable intensity

Abstract

The invention relates to a red light indicating device with adjustable intensity. The structure is that the reflective lens is fixed in the groove provided on the reflective seat, the support seat is provided with stepped holes and deep holes, the support seat and the reflective seat are fixed, and the lower polarized lens is located on the In the stepped hole of the support base, between the lower spacer sleeve and the support base, the upper spacer sleeve is closely matched with the large gear, and the large gear is located between the upper spacer sleeve and the lower spacer sleeve; In the hole, between the large gear and the upper spacer sleeve, the adjustment seat is fixed to the fixed plate through bolts and disc spring sets, the disc spring set is set on the bolts, the red light tube is fixed to the adjustment seat, and the fixed plate is fixed to the support seat. The adjusting rod is closely matched with the pinion, and the adjusting rod is located in the deep hole of the supporting base. The invention realizes the change of red light intensity by rotating the adjusting rod, has simple structure and low cost; since the red light intensity is adjustable, it can clearly and effectively indicate the marking format on the surface of materials with different characteristics, which can improve the accuracy of marking position and reduce the impact of red light on the eyes. s damage.

Description

technical field [0001] The invention relates to the technical field of laser applications, in particular to a red light indicating device with adjustable intensity. Background technique [0002] The laser of the fiber laser marking machine is invisible light, and the milliwatt-level red light dot laser tube is usually used to emit red light to indicate the marking format. During the format indication process, the red light still has a certain width after being focused by the lens, and the red light after focusing The increase of light intensity will affect the accuracy of the human eye to judge the marking position. At the same time, high-intensity red light will also damage the glasses; the light intensity and spot size of red light on the surface of different materials, roughness, and shapes are different. , For example, the intensity of red light is weak when irradiated on a black surface, and the light spot is small when irradiated on a mirror surface. These factors will...

AI Technical Summary

Problems solved by technology

[0002] The laser of the fiber laser marking machine is invisible light, and the milliwatt-level red light point laser tube is usually used to emit red light to indicate the marking format. During the format indication process, the red light still has a certain width after being focused by the lens, and the red light is red The increase of light intensity will affect the accuracy of the human eye to judge the marking position. At the same time, high-intensity red light will also damage the glasses; the light intensity and spot size of red light on the surface of different materials, roughness, and shapes are different. , For example, the intensity of red light is weak when irradiated on a black surface, and the light spot is small when irradiated on a mirror surface. These factors will also affect the accuracy of the human eye in judging the marking position

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