CN220473795U - Beam shrinking and shaping structure for laser emitted light spots and light source device - Google Patents
Beam shrinking and shaping structure for laser emitted light spots and light source device Download PDFInfo
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- CN220473795U CN220473795U CN202322069528.1U CN202322069528U CN220473795U CN 220473795 U CN220473795 U CN 220473795U CN 202322069528 U CN202322069528 U CN 202322069528U CN 220473795 U CN220473795 U CN 220473795U
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- 239000011248 coating agent Substances 0.000 claims abstract description 9
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- 238000013461 design Methods 0.000 abstract description 13
- 238000013519 translation Methods 0.000 abstract description 9
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- 238000003698 laser cutting Methods 0.000 description 4
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Abstract
The utility model provides a laser emission light spot beam shrinking and shaping structure and a light source device, wherein the laser emission light spot beam shrinking and shaping structure comprises: one or more groups of prisms, the prisms having an external shape of a 45 ° parallelepiped; the prism is provided with a total reflection surface on two 45-degree side surfaces, and the upper and lower surfaces of the prism are provided with optical coating films. The prism is made of any optical material, and is used for stacking a plurality of prisms, so that translation of a plurality of light spots is realized. The laser light source device comprises a plurality of lasers which are arranged side by side, each laser consists of a plurality of laser diodes, and each laser diode emits light spots. The utility model can integrate the light spots emitted by the lasers through the prism, reduce the diameter of the whole enveloping circle, and translate the light spots of the lasers to different positions in the same plane, thereby improving the light power of the laser and realizing compact optical system design.
Description
Technical Field
The utility model belongs to the technical field of laser illumination, and particularly relates to a beam shrinking and shaping structure of an outgoing light spot of a laser and a light source device.
Background
Currently, the light emitting power of a single laser chip is limited. In order to obtain larger optical power of laser, a common way is to package multiple laser chips, but the electrical power of the largest laser package product in the world is about 300W at present due to the influence of heat dissipation factors and the like. Another approach is to closely arrange multiple lasers, but this results in a large overall envelope circle for all laser spots, limiting the compactness and cost effectiveness of the optical system design.
Disclosure of Invention
The utility model provides a beam shrinking and shaping structure of laser emergent light spots and a light source device, which aim to shape the emergent light spots of a plurality of lasers and reduce the diameter of the whole enveloping circle of the emergent light spots by adopting a mode of one or more groups of prisms or two parallel total reflectors, thereby improving the light power of laser and realizing compact optical system design.
The technical scheme adopted by the utility model is as follows:
in a first aspect, the present utility model provides a beam shrinking and shaping structure for an outgoing light spot of a laser, including:
one or more groups of prisms, the prisms having an external shape of a 45 ° parallelepiped;
the prism is provided with a total reflection surface on two 45-degree side surfaces, and the upper and lower surfaces of the prism are provided with optical coating films.
In a further aspect of the utility model, the prism is made of any optical material.
In a further aspect of the present utility model, the prism is used as a stack of a plurality of prisms, so as to implement translation of a plurality of light spots.
In a further aspect of the present utility model, the optical coating is an antireflection film for reducing laser loss.
In a further aspect of the utility model, the prism may be replaced by two total reflection mirrors arranged in parallel.
In a further scheme of the utility model, the beam shrinking and shaping structure of the light spots emitted by the lasers is used for integrating the light spots emitted by the lasers through the prism, reducing the diameter of the whole enveloping circle of the light spots, and being capable of translating the light spots of the lasers to different positions in the same plane.
In a second aspect, the present utility model also provides a laser light source device, including:
a plurality of lasers arranged side by side, each laser consists of a plurality of laser diodes, and each laser diode emits light spots;
the laser device emits light spots to shrink the beam shaping structure, and the laser device emits light spots to shrink the beam shaping structure to shape and shrink the light spots emitted by the laser device, so that the laser light source with the minimum envelope circle is obtained.
In a further aspect of the utility model, each laser is made up of a plurality of laser diodes, the single laser diode having an emission spot of about 3 x 1mm.
In a further aspect of the present utility model, the light spot beam shrinking and shaping structure uses one or more groups of prisms.
In a further scheme of the utility model, the light spot beam shrinking and shaping structure adopts two total reflection mirrors which are arranged in parallel.
In a further scheme of the utility model, the light spot beam shrinking and shaping structure is formed by stacking a plurality of prisms, so that translation of a plurality of light spots is realized.
The laser light source device is used in the fields of laser display, laser cutting, laser radar and the like.
Compared with the prior art, the laser device emission light spot beam shrinking and shaping structure and the light source device have the following beneficial effects:
1. improving the optical power of laser: the laser emission light spot beam shrinking and shaping structure and the light source device effectively improve the light power of laser by integrating the emission light spots of a plurality of lasers and reducing the diameter of the whole enveloping circle. By beam shaping, the spots of the multiple lasers are focused in a smaller area, thereby increasing light intensity and power density.
2. Compact design: by adopting the light spot beam shrinking and shaping structure, light spots of a plurality of lasers can be translated to different positions in the same plane, so that the compactness of the optical system design is realized. Compared with the traditional method, the volume of the whole laser light source device is effectively reduced under the condition of not increasing the number of the light sources.
3. Flexible adjustment: the light spot beam shrinking and shaping structure can change the size of the prism according to actual needs, and realize the translation of a plurality of light spots. The flexibility enables the application of the laser to be more flexible and diversified, and can adapt to different scenes and requirements.
4. Improving the efficiency of the optical system: by using the antireflection film to optically coat the prism, the laser loss can be reduced, and the efficiency of the shaping structure can be improved. The optimized optical system efficiency helps to reduce energy loss and improve the light output effect of the laser.
5. The cost is reduced: by using two total reflection mirrors arranged in parallel to replace the prism, the cost of the light spot beam shrinking and shaping structure can be reduced. According to the actual use condition, the proper optical element is selected, which is helpful for optimizing the design cost of the device.
6. Multi-domain application: the laser device emission light spot beam shrinking and shaping structure and the light source device can be widely applied to the fields of laser display, laser cutting, laser radar and the like. The high optical power, compact design and flexible adjustment characteristics of the optical fiber have potential application values in various fields of industrial processing, communication, medical treatment and the like.
In summary, the beam shrinking and shaping structure and the light source device for the laser emission light spots improve the light power of laser by integrating and shrinking the emission light spots of a plurality of lasers, realize compact design and flexible adjustment, have the advantages of optimizing the efficiency of an optical system and reducing the cost, and have wide application prospect and commercial value.
Drawings
Fig. 1 is a schematic structural diagram of a prism in a beam shrinking and shaping structure of a laser emitted light spot.
Fig. 2 is a schematic structural diagram of a prism translational light spot in a beam shrinking and shaping structure of a laser emitted light spot.
Fig. 3 is a schematic diagram of a minimum envelope circle of a translational light spot without using a beam shrinking and shaping structure of a laser emission light spot provided by the utility model.
Fig. 4 is a schematic diagram of a minimum envelope circle of a translational light spot using a beam shrinking and shaping structure of a laser emitted light spot provided by the utility model.
Fig. 5 is a schematic structural diagram of a beam shrinking and shaping structure for laser emission light spots to translate light spots.
Fig. 6 is a schematic diagram of an optical path of a laser beam-shrinking and shaping structure for translating a light spot.
Fig. 7 is a schematic diagram of an overall envelope circle of closely arranged spots of non-translated laser light.
Fig. 8 is a schematic diagram of an overall envelope circle after a laser emits a light spot beam shrinking and shaping structure to translate the light spot.
Reference numerals illustrate:
1. a laser; 11. a laser diode; 2. a prism; 21. a total reflection surface; 22. optical coating; 221. an antireflection film; 3. a minimum envelope circle.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The embodiment of the utility model provides a laser emission light spot beam shrinking and shaping structure and a light source device, as shown in fig. 1, the laser emission light spot beam shrinking and shaping structure provided by the embodiment of the utility model comprises one or more groups of prisms 2, wherein the shape of the prisms 2 is 45-degree parallelepiped; the prism 2 is provided with a total reflection surface 21 on two 45-degree side surfaces, and an optical coating film 22 is arranged on the upper and lower sides of the prism 2, wherein the optical coating film 22 is an antireflection film 221 for reducing laser loss. By optically coating the prism 2 with the antireflection film 221, the laser loss can be reduced and the efficiency of the shaping structure can be improved. The optimized optical system efficiency helps to reduce energy losses and improve the light output of the laser 1.
In this embodiment, the prism 2 is made of any optical material. The prism 2 may be stacked for use with a plurality of prisms 2, so as to implement translation of a plurality of light spots.
In this embodiment, the prism 2 may be replaced by two total reflection mirrors arranged in parallel, and by using two total reflection mirrors arranged in parallel to replace the prism 2, the cost of the beam-shrinking and shaping structure of the light spot may be reduced. According to the actual use condition, the proper optical element is selected, which is helpful for optimizing the design cost of the device.
The beam shrinking and shaping structure of the laser emitted light spots is used for integrating the light spots emitted by the lasers 1 through the prism 2, reducing the diameter of the whole enveloping circle of the light spots, and translating the light spots of the lasers 1 to different positions in the same plane.
Referring to fig. 1 to 4, a laser light source device provided in an embodiment of the present utility model includes:
a plurality of lasers 1 arranged side by side, each laser 1 is composed of a plurality of laser diodes 11, and each laser diode 11 emits light spots;
referring to fig. 5 and 6, the beam shrinking and shaping structure of the laser emitted light spot is used to shape and shrink the light spot emitted by the laser 1 by using the beam shrinking and shaping structure of the laser emitted light spot described in the above embodiment, so as to obtain the laser source with the minimum envelope circle 3.
Referring to fig. 3 and 7, 4 commercially-available 8*2 lasers are arranged side by side, each laser 1 is composed of 8*2 laser diodes 11, the emission light spot of a single laser diode 11 is 3 x 1mm, if the reflection prism translation light spot operation is not performed by the laser emission light spot beam shrinking and shaping structure, the minimum envelope circle diameter is about 87mm, and all light spots can be collected only by selecting at least a lens with a light transmission caliber larger than 87 mm.
Referring to fig. 4 and 8, 4 mature 8*2 lasers in the market are also adopted to be arranged side by side, each laser 1 is composed of 8*2 laser diodes 11, the emission light spot of a single laser diode 11 is 3 x 1mm, the reflection prism translation light spot operation is carried out through the laser emission light spot beam shrinking and shaping structure, the minimum envelope circle diameter is about 43mm, all light spots can be collected by selecting at least a lens with the light passing caliber larger than 43mm, the lens is small in size and easy to process and manufacture, the subsequent light path is easier to design, the lens cost is lower, and the whole system is compact.
In this embodiment, the beam shrinking and shaping structure may use one or more groups of prisms 2.
In this embodiment, the beam shrinking and shaping structure of the light spot may further use two total reflection mirrors arranged in parallel.
In this embodiment, the beam shrinking and shaping structure of the light spots adopts a plurality of prisms 2 to be stacked for use, so as to realize the translation of the light spots.
The laser light source device is used in the fields of laser display, laser cutting, laser radar and the like.
The laser emission light spot beam shrinking and shaping structure and the light source device effectively improve the light power of laser by integrating the emission light spots of the plurality of lasers 1 and reducing the diameter of the whole enveloping circle. By beam shaping, the spots of the plurality of lasers 1 are focused in a smaller area, thereby increasing the light intensity and power density.
In the laser light source device, the light spots of the lasers 1 can be translated to different positions in the same plane by adopting the light spot beam shrinking and shaping structure, so that the compactness of the optical system design is realized. Compared with the traditional method, the volume of the whole laser light source device is effectively reduced under the condition of not increasing the number of the light sources.
The light spot beam shrinking and shaping structure can change the size of the prism 2 according to actual needs, and realize the translation of a plurality of light spots. This flexibility allows for a more flexible and versatile application of the laser 1, which can be adapted to different scenarios and requirements.
The laser device emission light spot beam shrinking and shaping structure and the light source device can be widely applied to the fields of laser display, laser cutting, laser radar and the like. The high optical power, compact design and flexible adjustment characteristics of the optical fiber have potential application values in various fields of industrial processing, communication, medical treatment and the like.
In summary, the beam-shrinking and shaping structure and the light source device for the laser emission light spots improve the light power of the laser by integrating and shrinking the emission light spots of the plurality of lasers 1, realize compact design and flexible adjustment, have the advantages of optimizing the efficiency of an optical system and reducing the cost, and have wide application prospects and commercial values.
It should be noted that, for simplicity of description, the foregoing embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present utility model is not limited by the order of acts, as some steps may be performed in other order or concurrently in accordance with the present utility model. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present utility model.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.
Claims (9)
1. The utility model provides a laser device launches facula beam shaping structure that contracts which characterized in that includes:
one or more groups of prisms, the prisms having an external shape of a 45 ° parallelepiped;
the prism is provided with a total reflection surface on two 45-degree side surfaces, and the upper and lower surfaces of the prism are provided with optical coating films.
2. A laser spot beam shrinking and shaping structure according to claim 1, wherein the prism is a stack of a plurality of prisms.
3. The laser outgoing light spot beam shrinking and shaping structure according to claim 2, wherein the optical coating is an antireflection film.
4. A laser spot beam shrinking and shaping structure as defined in claim 3, wherein said prism is replaced by two total reflection mirrors arranged in parallel.
5. The beam shrinking and shaping structure of claim 4, wherein the beam shrinking and shaping structure of the laser outgoing light spots is used for integrating the light spots emitted by the plurality of lasers through a prism, reducing the diameter of an overall envelope circle and translating the light spots of the plurality of lasers to different positions in the same plane.
6. A laser light source device, comprising:
a plurality of lasers arranged side by side, each laser consists of a plurality of laser diodes, and each laser diode emits light spots;
the laser beam-shrinking and shaping structure of the laser beam-emitting light spot, which is used for shaping and shrinking the light spot emitted by the laser by adopting the laser beam-shrinking and shaping structure of the laser beam-emitting light spot according to any one of claims 1 to 5, so as to obtain the laser light source with the minimum envelope circle.
7. A laser light source device as claimed in claim 6, wherein each laser is formed of a plurality of laser diodes, and the emission spot of a single laser diode is about 3 x 1mm.
8. A laser light source device as in claim 7 wherein the spot beam shrinking and shaping structure employs one or more sets of prisms.
9. A laser light source device as claimed in claim 7, wherein the spot beam shrinking and shaping structure employs two total reflection mirrors arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322069528.1U CN220473795U (en) | 2023-08-03 | 2023-08-03 | Beam shrinking and shaping structure for laser emitted light spots and light source device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322069528.1U CN220473795U (en) | 2023-08-03 | 2023-08-03 | Beam shrinking and shaping structure for laser emitted light spots and light source device |
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| CN220473795U true CN220473795U (en) | 2024-02-09 |
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| CN202322069528.1U Active CN220473795U (en) | 2023-08-03 | 2023-08-03 | Beam shrinking and shaping structure for laser emitted light spots and light source device |
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| CN (1) | CN220473795U (en) |
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- 2023-08-03 CN CN202322069528.1U patent/CN220473795U/en active Active
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