CN212443755U

CN212443755U - Transparent glass internally dazzles colored sculpture device

Info

Publication number: CN212443755U
Application number: CN202020860270.0U
Authority: CN
Inventors: 陈磊; 钟修; 邵国栋; 刘振林
Original assignee: Wuhan Huarui Ultra Fast Fiber Laser Technology Co ltd
Current assignee: Wuhan Huarui Ultra Fast Fiber Laser Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-02-02
Anticipated expiration: 2030-05-21

Abstract

The utility model provides a transparent glass is inside dazzles colored sculpture and carves device, including the femto second laser instrument of transmission femto second laser, be used for with femto second laser plastic for long focal depth focus laser's light beam plastic subassembly, place the transparent glass sample and drive the three-dimensional moving platform that the transparent glass sample removed according to setting for the figure, the light beam plastic subassembly includes the cone lens and the telescope component that further focuses on femto second Bessel Gauss laser that is femto second Bessel Gauss laser with the femto second laser plastic, cone lens with the telescope component all is located laser light path, cone lens is located between femto second laser instrument and telescope component, the telescope component is located between cone lens and three-dimensional moving platform. The utility model provides a transparent glass is inside dazzles colored sculpture and carves device has solved traditional glass interior carving device and has reduced glass intensity and the single problem of interior carving color.

Description

Transparent glass internally dazzles colored sculpture device

Technical Field

The utility model relates to a laser engraving's technical field especially relates to a transparent glass is inside dazzles various carving and carving device.

Background

The glass inner carving process is a process method for realizing carving of any pattern in glass by focusing laser inside the glass and damaging or changing the structure of the glass. The glass inner carving technology mainly goes through two stages of white laser inner carving and laser color inner carving, the white laser inner carving is widely applied to the market at present, such as inner carving of various crystal glasses, trophuses and decorative glasses, high-intensity nanosecond laser is mainly focused into the glass, and the glass is damaged at the focus of the laser to generate microcracks, so that light scattering is formed, and macroscopic carving patterns are realized; the color laser inner carving technology is characterized in that the color center formation, the ion valence change and the nano particle separation are induced through nonlinear reactions such as multiphoton absorption, multiphoton ionization and the like generated in the glass by the ultrashort pulse laser, so that the color inner carving is realized. The traditional glass inner carving device has some inherent disadvantages, such as reduced glass strength, higher selectivity to glass material, single inner carving color and the like.

Therefore, there is a need for a new glass engraving device to overcome the above problems.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a transparent glass is inside dazzles colored sculpture and carves device to solve traditional glass interior sculpture device can reduce glass's intensity and interior sculpture single problem of color.

The utility model discloses a realize like this:

the utility model provides a transparent glass is inside dazzles colored sculpture and carves device, including the femto second laser instrument of transmission femto second laser, be used for with femto second laser plastic for long focal depth focus laser's light beam plastic subassembly, place the transparent glass sample and drive the three-dimensional moving platform that the transparent glass sample removed according to setting for the figure, the light beam plastic subassembly includes the cone lens and the telescope component that further focuses on femto second Bessel Gauss laser that is femto second Bessel Gauss laser with the femto second laser plastic, cone lens with the telescope component all is located laser light path, cone lens is located between femto second laser instrument and telescope component, the telescope component is located between cone lens and three-dimensional moving platform.

Preferably, the telescope member includes a plano-convex lens and an objective lens, the plano-convex lens being located between the axicon lens and the objective lens.

The utility model discloses following beneficial effect has:

1. the utility model provides an inside colored sculpture of dazzling of transparent glass carves device utilizes the characteristics of femto second laser "cold" processing, through the scanning speed who adjusts femto second laser instrument's average power, repetition frequency and three-dimensional moving platform, makes the transparent glass sample only produce the refracting index change in the focus department of laser (the inside various region that dazzles of glass), does not cause destruction to the glass substrate, can not weaken glass's intensity.

2. The utility model provides an inside colored sculpture carving device of dazzling of transparent glass focuses on glass inside femto second laser through the optical element who has certain tele depth, glass absorbs laser energy and takes place the permanent refracting index change in focus position department, the characteristic that utilizes this refracting index to change combines the deep characteristics of carving of tele, the internal Bragg grating that has certain depth of carving of glass, utilize the higher diffraction efficiency of the internal Bragg grating, can construct arbitrary irregular figure in glass internal, and at the inside colored pattern that forms of glass.

3. The utility model provides a transparent glass is inside to dazzle various carving and carving device relies on femto second laser direct writing mode can be processed out in glass inside and dazzle various figure wantonly, is applicable to the processing of various glass, sapphire material.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is the embodiment of the utility model provides a schematic diagram of the inside colored sculpture device that dazzles of clear glass.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As fig. 1, the embodiment of the utility model provides a transparent glass is inside dazzles colored sculpture and carves device, including the femto second laser 1 of transmission femto second laser, be used for with femto second laser plastic for long focus deep focus laser's beam shaping subassembly 2, place transparent glass sample 3 and drive transparent glass sample 3 according to setting for three-dimensional moving platform 4 that the figure removed, beam shaping subassembly 2 includes conical lens 5 and the telescope component of further focusing on femto second Bessel Gauss laser that is femto second laser plastic, conical lens 5 with the telescope component all is located laser light path, conical lens 5 is located between femto second laser 1 and the telescope component, the telescope component is located between conical lens 5 and three-dimensional moving platform 4. In this embodiment, the telescope component includes a plano-convex lens 6 and an objective lens 7, the plano-convex lens 6 is located between the axicon lens 5 and the objective lens 7, and the convex surface of the plano-convex lens 6 faces upward to the conical surface of the axicon lens 5. The utility model provides an inside colored sculpture carving device of dazzling of transparent glass focuses on glass inside femto second laser through the optical element who has certain tele depth, glass absorbs laser energy and takes place the permanent refracting index change in focus position department, the characteristic that utilizes this refracting index to change combines the deep characteristics of carving of tele, the internal Bragg grating that has certain depth is carved inside to glass, utilize the diffraction effect that this grating is to light, can construct arbitrary irregular figure at glass internal, and at the inside colored pattern that forms of glass. Because the higher diffraction efficiency of volume Bragg grating, the pattern that consequently processes dazzles various more, and the color is abundanter.

The embodiment of the utility model provides an inside operation step of dazzling colored sculpture device of transparent glass: 1. in order to have the figure of dazzling various effect more in glass inside formation, the utility model discloses select to carve the volume Bragg grating that has certain longitudinal depth at glass inside, the theoretical diffraction efficiency of this grating can reach 100%, in order to realize this longitudinal depth of carving, the laser pulse (<500fs) of femto second laser 1 transmission is through the beam shaping subassembly 2 plastic that cone lens 5, plano-convex lens 6 and objective 7 are constituteed, changes the femto second Bessel Gauss laser that has minimum transverse focusing size and great longitudinal focal depth into; 2. focusing the femtosecond laser at a designated position in the glass through the beam shaping component 2, setting the output power and frequency of the laser and the moving speed of the three-dimensional moving platform 4, and searching for appropriate processing parameters in a single line scribing mode in the glass; 3. observing the inscription track in the glass by using a microscope, wherein for the transparent track which is only in the area with the changed refractive index and can be seen under the microscope, the transverse dimension of the transparent track is generally in the order of submicron to several microns according to the focusing effect of an optical system; 4. drawing a figure file of a pattern to be processed, filling the pattern with lines, and setting a proper filling interval to ensure that the laser modification areas are not overlapped; 5. the three-dimensional moving platform 4 with the transparent glass sample 3 is controlled by a motion control system to move according to a designed figure, and meanwhile, the laser switch light is controlled, so that the laser scans a required pattern in the glass.

The utility model provides an inside colored sculpture of dazzling of transparent glass carves device utilizes the characteristics of femto second laser "cold" processing, through the scanning speed who adjusts femto second laser instrument's average power, repetition frequency and three-dimensional moving platform, makes the transparent glass sample only produce the refracting index change in the focus department of laser (the inside various region that dazzles of glass), does not cause destruction to the glass substrate, can not weaken glass's intensity.

The utility model provides an inside colored sculpture carving device of dazzling of transparent glass focuses on glass inside femto second laser through the optical element who has certain tele depth, glass absorbs laser energy and takes place the permanent refracting index change in focus position department, the characteristic that utilizes this refracting index to change combines the deep characteristics of carving of tele, the internal Bragg grating that has certain depth of carving of glass, utilize the higher diffraction efficiency of the internal Bragg grating, can construct arbitrary irregular figure in glass internal, and at the inside colored pattern that forms of glass.

The utility model provides a transparent glass is inside to dazzle various carving and carving device relies on femto second laser direct writing mode can be processed out in glass inside and dazzle various figure wantonly, is applicable to the processing of various glass, sapphire material.

As shown in fig. 1 to dazzle the colored sculpture for femto second laser glass is inside to carve the schematic diagram, the utility model provides a transparent glass is inside to dazzle colored sculpture and carves the device and mainly comprises femto second laser instrument 1, beam shaping subassembly 2, transparent glass sample 3 and three-dimensional moving platform 4. The femtosecond laser is generated by a femtosecond laser 1, for example, the central wavelength is 1035nm, the pulse width is 350fs, a beam shaping component 2 is used for shaping the femtosecond laser 1 into Bessel Gaussian laser, the long focal depth focusing characteristic of the Bessel Gaussian laser directly determines the longitudinal depth of a written volume Bragg grating, the laser is focused inside a transparent glass sample 3, and a three-dimensional moving platform 4 moves according to a set pattern to change the scanning track of the laser inside the glass.

Utilize the utility model provides an implementation step that engraving device dazzled colored sculpture carving inside glass:

placing the cleaned transparent glass sample 3 on a three-dimensional moving platform 4 controlled by a computer;

the femtosecond laser 1 emitted by the femtosecond laser is shaped into femtosecond Bessel Gaussian laser through a conical lens 5, and then is further reduced and focused inside a transparent glass sample 3 through a telescope component consisting of a plano-convex lens 6 and an objective lens 7;

adjusting the average power and the repetition frequency of the femtosecond laser 1 and the scanning speed of the three-dimensional moving platform 4 to ensure that the transparent glass sample 3 only generates refractive index change at the focus of the laser;

observing the refractive index modified region inside the transparent glass sample 3 under a microscope, wherein the refractive index modified region inside the transparent glass sample 3 has a transverse dimension of <1.5 μm and a longitudinal depth of about 80 μm at an average power of 0.28W and a repetition frequency of 40kHz for the femtosecond laser 1 and a moving speed of 60mm/s for the three-position moving platform 4;

drawing a processing figure file, filling the pattern with lines, adopting a proper filling space, setting the filling space to be 3 mu m, controlling the switch light of the femtosecond laser 1 and the three-dimensional moving platform 4 to move according to set parameters, and processing the required pattern.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device is carved to inside colorful carving of dazzling of clear glass which characterized in that: the device comprises a femtosecond laser for emitting femtosecond laser, a beam shaping assembly for shaping the femtosecond laser into long-focus deep-focused laser, and a three-dimensional moving platform for placing a transparent glass sample and driving the transparent glass sample to move according to a set figure, wherein the beam shaping assembly comprises a cone lens for shaping the femtosecond laser into the femtosecond Bessel Gaussian laser and a telescope component for further focusing the femtosecond Bessel Gaussian laser, the cone lens and the telescope component are both positioned on a laser light path, the cone lens is positioned between the femtosecond laser and the telescope component, and the telescope component is positioned between the cone lens and the three-dimensional moving platform.

2. The apparatus of claim 1, wherein: the telescope component comprises a plano-convex lens and an objective lens, wherein the plano-convex lens is positioned between the cone lens and the objective lens.