CN210872021U

CN210872021U - Microlens array laser spot size discernment hand utensil

Info

Publication number: CN210872021U
Application number: CN201921278344.3U
Authority: CN
Inventors: 熊昕; 彭国红
Original assignee: Wuhan Miracle Laser Technology Co ltd
Current assignee: Wuhan Miracle Laser Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-30
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a microlens array laser facula size discernment hand utensil, the microlens array is fixed in microlens array mount pad, it is connected with microlens array mount pad to cross the line cover, the focus lens is in the sliding sleeve, the sliding sleeve is connected with microlens array mount pad, it is used for fixed sliding sleeve and interior union coupling to logout, the sliding sleeve dress is in interior union coupling, interior union coupling is connected with the spiral pipe, facula discernment circuit board is fixed on interior union coupling, the one end and the spiral pipe of interior outer spiral pipe are connected, O shape rubber seal circle is installed to the other end of interior outer spiral pipe, the plane lens is packed into on the interior outer spiral pipe inner circle step, fix the plane lens with plane lens retaining ring, fixed focus is taken over one and is connected with interior outer spiral pipe, fixed focus is taken over two and is taken. The utility model discloses can export even square array facula, adjust and automatic identification laser facula size, prevent that laser from at the specular reflection of plane lens, protection focus lens and microlens array.

Description

Microlens array laser spot size discernment hand utensil

Technical Field

The utility model relates to a laser hand utensil, concretely relates to microlens array laser facula size discernment hand utensil.

Background

The laser spot size identification handpiece is commonly applied to medical laser treatment equipment, and an appropriate spot size is selected according to the area size of a skin application area; however, the existing medical laser treatment equipment is troublesome to adjust after the size of the light spot is identified, and the use efficiency and the use range of the medical laser treatment equipment are influenced. Secondly, uniform square array light spots cannot be output. And thirdly, the mirror reflection of the laser on the plane lens cannot be prevented, and the focusing lens and the micro-lens array are protected.

Disclosure of Invention

The utility model aims at providing a microlens array laser facula size discernment hand utensil can export even square array facula, adjusts and automatic identification laser facula size, prevents that laser from at the specular reflection of plane lens, protection focus lens and microlens array.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model relates to a microlens array laser facula size identification hand tool, which comprises a wire passing sleeve, a microlens array mounting seat, a focusing lens, a sliding sleeve, a logout, an inner connecting tube, a facula identification circuit board, a spiral tube, an inner spiral tube, an outer spiral tube, an O-shaped rubber sealing ring, a plane lens retaining ring, a plane lens, a fixed focus connecting tube I and a fixed focus connecting tube II, wherein the microlens array is fixed in the microlens array mounting seat, the wire passing sleeve is connected with the microlens array mounting seat, the focusing lens is arranged in the sliding sleeve, the sliding sleeve is connected with the microlens array mounting seat, the logout is used for fixing the sliding sleeve and connecting the inner connecting tube, the sliding sleeve is arranged in the inner connecting tube, the inner connecting tube is connected with the spiral tube, the facula identification circuit board is fixed on the inner connecting tube, one end of the inner spiral tube and the outer spiral tube is connected with the spiral tube, the, and the plane lens is fixed by a plane lens retainer ring, the fixed-focus connecting pipe I is connected with the inner and outer spiral pipes, and the fixed-focus connecting pipe II is connected with the fixed-focus connecting pipe I.

The micro lens array is in a shape of one plane and one convex surface, the micro lens array is a square micro lens, a plurality of square micro lenses are arranged in a square grid, the applicable wavelength range of the micro lens array is 300nm-1100nm, and the output light spots are square array light spots.

The horizontal inclination angle theta of the plane lenses on the inner and outer spiral tubes is 6 degrees, and the fixed-focus connecting tube I and the fixed-focus connecting tube II are made of 2A12 aluminum alloy; the material of the sliding sleeve which is cancelled is brass; the micro lens array mounting seat is made of polyformaldehyde.

The light spot identification circuit board comprises 8 resistors, 3 pins Pin1, Pin2 and Pin3 are arranged at an I/O port of the light spot identification circuit board, wherein a first Pin Pin1 is connected with a +12V power supply, a second Pin Pin2 is a signal output Pin, a third Pin Pin3 is connected with a ground GND, the first Pin Pin1 and the third Pin Pin3 are connected in series through 8 resistors of 1.5K omega, switch contacts are arranged between the adjacent resistors of the first Pin Pin1 and the third Pin Pin3, when the hand tool is rotated, the series number of the resistors between the second Pin Pin2 and the third Pin Pin3 is changed along with the change of the series number, namely the output voltage value of the second Pin Pin2 is changed, and then the voltage value changed due to the change of the resistors is read through an analog-to-digital conversion circuit of the laser, and the voltage value is converted into the corresponding light spot size.

Owing to adopted above technical scheme, the utility model has the advantages of:

1) the micro lens array homogenizes the light beam to realize more uniform light intensity distribution;

2) square array light spots are output, the size of the light spots is adjustable, and the light spots can be automatically and quickly identified;

3) the utility model relates to a horizontal inclination angle theta of 14 plane lens installations is 6 degrees, and 14 plane lenses are perpendicular with the non-90 degrees of output laser, and 14 plane lens specular reflection's laser can not reflect on 4 focus lens and 2 microlens arrays, plays the effect of protection lens.

Drawings

FIG. 1 is a schematic view of the assembly structure of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a schematic diagram of the optical path of the present invention;

FIG. 4 is a front view of the inner and outer spiral pipes of the present invention;

fig. 5 is a schematic circuit diagram of the light spot identification circuit board of the present invention;

fig. 6 is an enlarged schematic view of the microlens array of the present invention.

The micro-lens array installation structure comprises a wire passing sleeve 1, a micro-lens array 2, a micro-lens array installation seat 3, a focusing lens 4, a sliding sleeve 5, a cancellation 6, an inner connecting pipe 7, a light spot identification circuit board 8, a spiral pipe 9, a helical pipe 10, an inner hexagonal screw 11, an inner spiral pipe and an outer spiral pipe 12, an O-shaped rubber sealing ring 21.2 × 1.80, a plane lens retainer 13, a plane lens 14, a plane lens 15, a fixed focus connecting pipe I, a fixed focus connecting pipe II, an incident laser 17, a maximum light spot size phi, a square array light spot 18, a side length L of the micro-lens array, a thickness H of the micro-lens array, a mounting distance d between the micro-lens array and the focusing lens, a focus of the focusing lens f0, a distance between an OUTPUT optimal square array light spot and the focusing lens f1, a horizontal inclination angle theta, a rotary contact S, a Pin1, a first Pin2, a second Pin3, a third Pin, a ground and a PUT (ground) as a second OUTPUT terminal).

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1, 2, 3, 4, 5 and 6,

the utility model discloses a microlens array laser facula size identification hand tool, including cross the line cover, the microlens array, microlens array mount pad, focus lens, sliding sleeve, cancellation, interior union coupling, facula identification circuit board, spiral pipe, interior outer screwed pipe, O shape rubber seal, plane lens retaining ring, plane lens, fixed focus take over one, fixed focus takes over two, the microlens array is fixed in microlens array mount pad, cross the line cover and be connected with microlens array mount pad, the focus lens is in the sliding sleeve, the sliding sleeve is connected with microlens array mount pad, cancellation is used for fixed sliding sleeve and interior union coupling, the sliding sleeve is adorned in the interior union coupling, interior union coupling is connected with the spiral pipe, facula identification circuit board is fixed on interior union coupling, the one end of interior outer screwed pipe is connected with the spiral pipe, O shape rubber seal is installed to the other end of interior outer screwed pipe, the plane lens is packed in interior screwed pipe inner circle step, and the plane lens is fixed by a plane lens retainer ring, the fixed-focus connecting pipe I is connected with the inner and outer spiral pipes, and the fixed-focus connecting pipe II is connected with the fixed-focus connecting pipe I.

The horizontal inclination angle theta of the plane lens arranged on the inner and outer spiral tubes is 6 degrees, so that laser reflected by the plane lens is prevented from being reflected to the focusing lens 4 and the micro-lens array 2 to damage the lens; the material of the fixed-coke connecting pipe I and the fixed-coke connecting pipe II is 2A12 aluminum alloy; the material of the sliding sleeve which is cancelled is brass; the micro lens array mounting seat is made of polyformaldehyde.

The light spot identification circuit board comprises 8 resistors, 3 pins Pin1, Pin2 and Pin3 are arranged at an I/O port of the light spot identification circuit board, wherein a first Pin Pin1 is connected with a +12V power supply, a second Pin Pin2 is a signal output Pin, a third Pin Pin3 is connected with a ground GND, the first Pin Pin1 and the third Pin Pin3 are connected in series through 8 resistors of 1.5K Ω, switch contacts are arranged between the adjacent resistors of the first Pin Pin1 and the third Pin Pin3, when the hand tool is rotated, the series number of the resistors between the second Pin Pin2 and the third Pin Pin3 is changed along with the change of the first Pin Pin2, namely the output voltage value of the second Pin Pin2 is changed, and then the voltage value changed due to the change of the resistors is read through an analog-to-digital conversion circuit of the laser to convert the voltage value into the corresponding light spot size; the laser is a Q-switch Nd-YAG laser produced by Wuhan Qizhiji laser technology GmbH, model ML-3080Q.

When the micro-lens array laser spot size identification hand tool is used, the micro-lens array laser spot size identification hand tool is matched with a light guide arm for use; the light guide arm is manufactured by Wuhanqizhi laser technology, Inc., and has the model of ML-DGB, the output end of the light guide arm is connected with a hand tool, the input end of the light guide arm is connected with a laser, and the laser is a Q switch Nd, namely a YAG laser manufactured by Wuhanqizhi laser technology, Inc., and has the model of ML-3080Q.

The distance between the microlens array 2 and the focusing lens 4 is d, the square array spot size 18 is determined by the focal length f0 of the focusing lens 4, and the optimal distance between the square array spot 18 and the focusing lens 4 is f 1.

The microlens array laser spot size identification hand tool is specifically installed and connected as follows:

(1) the sliding sleeve 5 is arranged in the inner connecting pipe 7, the small hole of the sliding sleeve 5 is aligned with the sliding seam of the inner connecting pipe 7, the pin 6 is pressed in an interference fit manner, and the inner surface is tangent;

(2) a small steel ball is arranged in a small hole of the spiral tube 9, the M4 × 4 socket head cap screw 10 is sleeved with a 0.3 × 3 × 7 spring to support the steel ball, the M4 × 4 socket head cap screw 10 is adjusted, and the tightness of the spiral tube 9 and the inner connecting tube 7 during rotation is changed;

(3) proper amount of lubricating grease is uniformly coated on the surface of the inner connecting pipe 7 and the chute of the spiral pipe 9;

(4) uniformly coating a circle of 103 glue on the edge of the groove of the inner connecting pipe 7, installing the light spot identification circuit board 8 into the groove of the inner connecting pipe 7, slightly pressing, and fixing;

(5) 2O-shaped rubber sealing rings are arranged in the grooves of the inner and outer spiral tubes 11;

(6) installing a planar lens 14 into the inner ring steps of the inner and outer spiral tubes 11, fixing by a planar lens 13 retainer ring, then installing a fixed-focus connecting tube I15 and a fixed-focus connecting tube II 16, and fastening the inner and outer spiral tubes 11;

(7) the convex surface of a focusing lens 4 is upward and vertically placed on the step of the inner ring of the sliding sleeve 5, the micro-lens array mounting seat 3 is twisted into the thread of the sliding sleeve 5 to fix the focusing lens 4, and then the micro-lens array 2 is mounted and fixed in the groove of the micro-lens array mounting seat 3;

(8) under the condition that the micro-lens array, the micro-lens array mounting seat, the focusing lens and the sliding sleeve are mounted, the wire passing sleeve 1 is assembled with the inner connecting pipe 7, then is assembled with the spiral pipe 9, and then the inner and outer spiral pipes 11 are assembled with the inner connecting pipe 7.

A microlens array laser facula size discernment hand utensil, after laser passes through the microlens array, take over a 15 square array facula that output is even from the dress fixed focus, the microlens array be fused quartz substrate microlens array, have good transmission characteristic at the ultraviolet to infrared band, microlens has plano-convex appearance, arranges in square net, the microlens array is square microlens, fill factor is high. The microlens array has a chrome mask to prevent light from passing through the spaces between the microlenses, thereby enhancing contrast.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. A microlens array laser spot size discernment hand utensil which characterized in that: the micro-lens array comprises a wire passing sleeve, a micro-lens array mounting seat, a focusing lens, a sliding sleeve, a logout, an inner connecting tube, a light spot identification circuit board, a spiral tube, an inner and outer spiral tube, an O-shaped rubber sealing ring, a plane lens retaining ring, a plane lens, a fixed focus connecting tube I and a fixed focus connecting tube II, wherein the micro-lens array is fixed in the micro-lens array mounting seat, the wire passing sleeve is connected with the micro-lens array mounting seat, the focusing lens is arranged in the sliding sleeve, the sliding sleeve is connected with the micro-lens array mounting seat, the logout is used for fixing the sliding sleeve to be connected with the inner connecting tube, the sliding sleeve is arranged in the inner connecting tube, the inner connecting tube is connected with the spiral tube, the light spot identification circuit board is fixed on the inner connecting tube, one end of the inner and outer spiral tubes is connected with the spiral, the fixed coke connecting pipe I is connected with the inner and outer spiral pipes, and the fixed coke connecting pipe II is connected with the fixed coke connecting pipe I.

2. The microlens array laser spot size recognition handpiece of claim 1, wherein: the micro lens array is in a shape of one plane and one convex surface, the micro lens array is a square micro lens, a plurality of square micro lenses are arranged in a square grid, the applicable wavelength range of the micro lens array is 300nm-1100nm, and the output light spots are square array light spots.

3. The microlens array laser spot size recognition handpiece of claim 1, wherein: the horizontal inclination angle theta of the plane lenses on the inner and outer spiral tubes is 6 degrees, and the fixed-focus connecting tube I and the fixed-focus connecting tube II are made of 2A12 aluminum alloy; the material of the sliding sleeve which is cancelled is brass; the micro lens array mounting seat is made of polyformaldehyde.

4. The microlens array laser spot size recognition handpiece of claim 1, wherein: the spot identification circuit board comprises 8 resistors, 3 pins (Pin1, Pin2 and Pin3) are arranged at an I/O port of the spot identification circuit board, wherein a first Pin (Pin1) is connected with a +12V power supply, a second Pin (Pin2) is a signal output Pin, a third Pin (Pin3) is connected with the Ground (GND), the first Pin (Pin1) and the third Pin (Pin3) are connected in series through 8 1.5K omega resistors, a switch contact is arranged between adjacent resistors of the first Pin (Pin1) and the third Pin (Pin3), when the hand tool is rotated, the number of the resistors in series between the second Pin (Pin2) and the third Pin (Pin3) is changed along with the change of the number, namely the output voltage value of the second Pin (Pin2) is changed, and then the voltage value changed due to the change of the resistance is read through an analog-to-digital conversion circuit of the laser, and the voltage value is converted into the corresponding spot size.