CN218974690U - Rectangular facula focusing lens with adjustable length-width ratio - Google Patents

Abstract

The utility model provides an aspect ratio-adjustable rectangular light spot focusing lens, which relates to the technical field of photoelectricity and comprises an installation box, wherein a rectangular light source is arranged between the inner walls of the installation box and close to one side edge, guide grooves are formed in the inner bottom surface of the installation box and close to two side edges, sliding blocks are slidably connected in the two guide grooves, a concave mirror is fixed at the top of one sliding block, and a convex mirror is fixed at the top of the other sliding block.

Description

Rectangular facula focusing lens with adjustable length-width ratio

Technical Field

The utility model relates to the technical field of photoelectricity, in particular to a rectangular light spot focusing lens with an adjustable length-width ratio.

Background

During laser processing, more and more flat-top rectangular laser spots are used, such as quenching, soldering, cladding, plastic welding and other heat treatment scenes are generally realized by adopting diffraction optics, micro-lens arrays and rectangular optical fibers, and once the system is designed, one model can only correspond to one proportion without the possibility of fine adjustment or deformation, so that the flexibility is deficient.

The utility model discloses a blue light excitation fluorescent powder type laser lamp based on a DMD (digital micromirror device), which belongs to the technical field of photoelectricity. The laser car lamp comprises a light source, a collimation and dodging shaping module, a reflecting mirror, a digital light processing projection module and a fluorescent plate micro-lens array; the laser emitted by the light source passes through the collimation uniform light shaping module to obtain uniform rectangular light spots with the same size as the digital micromirror array in the digital light processing projection module, the rectangular light spots are transmitted to the digital light processing projection module through the reflector, the digital light processing projection module carries out digital light processing on the rectangular light spots and then transmits the rectangular light spots to the fluorescent plate micro lens array, and finally, the rectangular light spots are projected to the light distribution screen through the projection lens to generate the self-adaptive car light type. The blue light excited fluorescent powder type laser car lamp based on the DMD has the advantages of high brightness, low energy consumption and small volume, and meanwhile, the digital micro mirror is used as a light distribution element, so that any car lamp light type can be realized, and the self-adaptive illumination requirement can be met.

However, in the device, the laser emitted by the light source passes through the collimation and uniform light shaping module to obtain uniform rectangular light spots with the same size as the digital micro mirror array in the digital light processing projection module, but the rectangular light spots are of fixed size in actual use, and the length and width directions of the rectangular light spots cannot be adjusted.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to solve the technical problem that the rectangular light spot focusing lens in the prior art is fixed in size and cannot adjust the length and width directions of the rectangular light spot in actual use, and provides the rectangular light spot focusing lens with adjustable length-width ratio.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

the utility model provides an aspect ratio is adjustable rectangle facula focus lens, includes the mounting box, be close to one side edge department between the inner wall of mounting box and be provided with the rectangle light source, the inside bottom surface of mounting box is close to both sides edge department and has all been seted up the guide way, two the inside of guide way is all sliding connection has the piece that slides, one of them the top of piece that slides is fixed with concave mirror, another the top of piece that slides is fixed with convex mirror, the concave surface of concave mirror is relative with the convex surface of convex mirror, through setting up concave mirror and convex mirror to the concave surface with concave mirror is relative with the convex surface of convex mirror, makes the plane side through concave mirror after the rectangle light is sent at the rectangle light source enter the inside of concave mirror, then produces refraction in concave surface department, enlarges the area of rectangle light.

Optionally, the both sides of mounting box are close to bottom edge department and all set up flutedly, two all rotate between the both sides inner wall of guide way and be connected with the screw rod, two the one end of screw rod runs through respectively to the inside of recess, two the one end of screw rod all is fixed with adjust knob, can drive the piece that slides through the screw rod and slide.

Optionally, the rectangle light source just faces one side of concave mirror, both sides and convex mirror's both sides all correspond and laminate mutually with the front and back both sides inner wall of mounting box, all leave the clearance between the inside bottom surface of bottom and convex mirror's bottom and mounting box of concave mirror, all leave the clearance between the bottom of concave mirror and convex mirror's bottom and the inside bottom surface of mounting box, can prevent to produce the friction with the inside of mounting box when concave mirror and convex mirror slide.

Optionally, two the spacing groove has all been seted up to the both sides inner wall of guide way, two the both sides have all been fixed with the stopper to the piece of sliding, and a plurality of the stopper all corresponds sliding connection in the inside of spacing groove, through the mutual block of spacing groove and stopper when sliding for it is more steady to slide, prevents to produce and rocks.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects, and of course, any product for implementing the utility model does not necessarily need to achieve all the following advantages at the same time:

1. in the utility model, when the device is used, the concave mirror and the convex mirror are arranged, and the concave surface of the concave mirror is opposite to the convex surface of the convex mirror, so that rectangular light emitted by the rectangular light source passes through the plane side of the concave mirror and enters the concave mirror, and refraction is generated at the concave surface, so that the area of the rectangular light is enlarged.

2. In the utility model, when the expansion degree of rectangular light needs to be regulated, the regulating knob is rotated to drive the screw rod to rotate, so that the sliding block slides in the guide groove, the concave mirror and the convex mirror can be driven to move relatively, the distance between the concave mirror and the convex mirror is regulated, the light propagation distance between the concave mirror and the convex mirror during refraction can be changed, and the regulation size of the rectangular light is changed.

Drawings

The drawings in the following description are only examples of embodiments from which other drawings may be derived by those skilled in the art without the exercise of inventive faculty. In the drawings:

fig. 1 is a schematic diagram of a front view perspective structure of an aspect ratio adjustable rectangular light spot focusing lens according to the present utility model;

FIG. 2 is a schematic diagram showing a cross-sectional perspective structure of a mounting box in an aspect ratio-adjustable rectangular light spot focusing lens according to the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

fig. 4 is a schematic diagram showing the propagation of an optical path of an aspect ratio adjustable rectangular light spot focusing lens according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a mounting box; 2. a rectangular light source; 3. an adjustment knob; 4. a concave mirror; 5. a convex mirror; 6. a guide groove; 7. a limit groove; 8. a limiting block; 9. a sliding block; 10. a screw; 11. a groove.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1-4, the present utility model provides a technical scheme of an aspect ratio adjustable rectangular light spot focusing lens: including mounting box 1, be close to one side edge department between the inner wall of mounting box 1 and be provided with rectangle light source 2, the inside bottom surface of mounting box 1 is close to both sides edge department and has all been seted up guide way 6, and the inside of two guide ways 6 is equal sliding connection has slider 9, and the top of one of them slider 9 is fixed with concave mirror 4, and the top of another slider 9 is fixed with convex mirror 5, and the concave surface of concave mirror 4 is relative with the convex surface of convex mirror 5.

The whole embodiment 1 achieves the effects that when the device is used, by arranging the concave mirror 4 and the convex mirror 5 in the installation box 1 and enabling the concave surface of the concave mirror 4 to be opposite to the convex surface of the convex mirror 5, rectangular light emitted by the rectangular light source 2 enters the concave mirror 4 through the plane side of the concave mirror 4, and refraction is generated at the concave surface, so that the area of the rectangular light is enlarged;

the refracted rectangular light is emitted into the convex mirror 5 from the convex surface of the convex mirror 5, and finally is emitted from the plane of the convex mirror 5, so that the refracted rectangular light is emitted straight;

the problem that the length and width directions of rectangular light spots cannot be adjusted due to the fact that the rectangular light spots are of fixed sizes in actual use of an existing rectangular light spot focusing lens is solved.

In embodiment 2, as shown in fig. 1-4, the two sides of the mounting box 1 are close to the bottom edge and are provided with grooves 11, screw rods 10 are respectively connected between the inner walls of the two sides of the two guide grooves 6 in a rotating manner, one ends of the two screw rods 10 respectively penetrate into the grooves 11, one ends of the two screw rods 10 are respectively fixed with an adjusting knob 3, the rectangular light source 2 is opposite to one side of the concave mirror 4, the two sides of the concave mirror 4 and the two sides of the convex mirror 5 are respectively attached to the inner walls of the front side and the rear side of the mounting box 1, gaps are reserved between the bottoms of the concave mirror 4 and the convex mirror 5 and the inner bottom surface of the mounting box 1, limiting grooves 7 are respectively formed in the inner walls of the two sides of the two guide grooves 6, limiting blocks 8 are respectively fixed on the two sides of the two sliding blocks 9, and a plurality of limiting blocks 8 are respectively and slidably connected in the inner sides of the limiting grooves 7.

The whole embodiment 2 has the effects that when the expansion degree of rectangular light needs to be regulated, only the regulating knob 3 is required to be rotated, so that the screw rod 10 is driven to rotate, the sliding block 9 is slid in the guide groove 6, the concave mirror 4 and the convex mirror 5 can be driven to relatively move, the distance between the concave mirror 4 and the convex mirror 5 is regulated, the light transmission distance between the concave mirror 4 and the convex mirror 5 during refraction can be changed, and the regulation of the rectangular light is further changed;

corresponding sliding connection of stopper 8 is in the inside of spacing groove 7 for concave mirror 4 and convex mirror 5 can be more stable when the slip, all leave the clearance between the inside bottom surface of the bottom of concave mirror 4 and convex mirror 5 and mounting box 1, make things convenient for people can not produce the interference with the inner wall of mounting box 1 when removing concave mirror 4 and convex mirror 5.

The present utility model is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims (6)

1. The utility model provides an aspect ratio adjustable rectangle facula focusing lens, includes mounting box (1), its characterized in that: be close to one side edge department between the inner wall of installation box (1) and be provided with rectangle light source (2), guide way (6) have all been seted up to the inside bottom surface of installation box (1) near both sides edge department, two the inside of guide way (6) is equal sliding connection has slider (9), one of them the top of slider (9) is fixed with concave mirror (4), another the top of slider (9) is fixed with convex mirror (5), the concave surface of concave mirror (4) is relative with the convex surface of convex mirror (5).

2. The adjustable rectangular facula focusing lens with the aspect ratio as claimed in claim 1, wherein: grooves (11) are formed in the two sides, close to the edges of the bottom, of the mounting box (1), and screws (10) are connected between the inner walls of the two sides of the guide grooves (6) in a rotating mode.

3. The adjustable rectangular facula focusing lens with the length-width ratio as claimed in claim 2, wherein: one end of each screw rod (10) penetrates through the groove (11), and one end of each screw rod (10) is fixed with an adjusting knob (3).

4. The adjustable rectangular facula focusing lens with the aspect ratio as claimed in claim 1, wherein: the rectangular light source (2) is opposite to one side of the concave mirror (4).

5. The adjustable rectangular facula focusing lens with the aspect ratio as claimed in claim 1, wherein: both sides of concave mirror (4) and both sides of convex mirror (5) all correspond and laminate mutually with the front and back both sides inner wall of installation box (1), all leave the clearance between the inside bottom surface of bottom and convex mirror (5) of concave mirror (4) and installation box (1).

6. The adjustable rectangular facula focusing lens with the aspect ratio as claimed in claim 1, wherein: limiting grooves (7) are formed in the inner walls of two sides of the guide grooves (6), limiting blocks (8) are fixed on two sides of the sliding blocks (9), and a plurality of limiting blocks (8) are correspondingly and slidably connected in the limiting grooves (7).

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