CN213302690U - Shaping device for generating Gaussian beam - Google Patents
Shaping device for generating Gaussian beam Download PDFInfo
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- CN213302690U CN213302690U CN202022619261.5U CN202022619261U CN213302690U CN 213302690 U CN213302690 U CN 213302690U CN 202022619261 U CN202022619261 U CN 202022619261U CN 213302690 U CN213302690 U CN 213302690U
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- lens
- plate body
- shaping device
- gaussian beam
- adjustable plate
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Abstract
The utility model relates to a produce shaping device of gaussian beam, including mount and first lens, the second lens of setting on the mount, interval setting about first lens, the second lens, first lens are convex lens, and the second lens are self-focusing lens or microballon lens, the right-hand aperture diaphragm that is equipped with of mount, pending light beam pass through first lens, second lens, aperture diaphragm in proper order. The incident flat-top light passes through the first lens, the Airy spots of the focus are in front of the second lens after being focused, the Airy spots are amplified by the second lens and pass through the aperture diaphragm, and high-order diffraction waves are filtered by the aperture diaphragm, so that a light beam with Gaussian distribution is obtained. The lens is used in the device, so that the price is low, and the cost can be obviously reduced.
Description
Technical Field
The utility model relates to a light beam shaping device technical field, concretely relates to generate shaping device of gaussian beam.
Background
The semiconductor laser has poor spot quality, and is a flat-top spot after general shaping, and the focused Airy spot has a high-order diffraction ring, which affects the focusing quality. And the focused Gaussian beam has good spot quality and no diffraction effect. To obtain a gaussian beam, it is conventional to use a soft edge stop or to pump the laser with a semiconductor. The disadvantage of the beam obtained with a soft edge diaphragm is that it is difficult to manufacture the soft edge diaphragm and the cost of obtaining laser light with a semiconductor pump is too high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a produce shaping device of gaussian beam to obtain the technical problem of gaussian beam with high costs, difficulty among the solution prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a shaping device who produces gaussian beam, includes the mount and sets up first lens, the second lens on the mount, and first lens, the interval setting is controlled to the second lens, and first lens are convex lens, and the second lens are self-focusing lens or microballon lens, the right-hand aperture diaphragm that is equipped with of mount, pending light beam passes through first lens, second lens, aperture diaphragm in proper order.
Furthermore, the fixed frame comprises a base and a movable frame, the movable frame is fixed on the base through a first screw, and a long hole or a long groove along the vertical direction is formed in the movable frame or the base and is used for the first screw to penetrate through.
Furthermore, the base is provided with a groove body for placing the movable frame, the front side wall and the rear side wall of the groove body are provided with the elongated slots, the movable frame is provided with positioning bulges matched with the elongated slots, and the length directions of the positioning bulges are along the vertical direction.
Further, the adjustable shelf includes first plate body, second plate body, the protruding setting in location is on first plate body, and the second plate body passes through the second fix with screw on first plate body, and the second screw is equipped with two, and two second screws set up along controlling the direction interval, first lens, second lens setting are on the second plate body.
Furthermore, the second plate body includes the mainboard body and adjustable plate body, and the mainboard body passes through the second fix with screw is on first plate body, and the right-hand member of mainboard body is equipped with the U-shaped notch, and the length direction of U-shaped notch is along controlling the direction, and adjustable plate body passes through the third fix with screw in this U-shaped notch department, the second lens sets up on adjustable plate body.
Furthermore, the main board body is a horizontal board body, the adjustable board body is a vertical board body, the adjustable board body is perpendicular to the main board body, the adjustable board body is in a convex shape, the upper portion of the adjustable board body is a convex block inserted into the U-shaped notch, and the convex block of the adjustable board body is matched with a step surface formed on the lower portion of the adjustable board body in a positioning mode with the main board body.
The utility model has the advantages that:
the utility model discloses a shaping device who produces gaussian beam is when using, and the spot in the chinese mugwort of focus behind the focus of incident flat light first lens is in second lens the place ahead, and the spot in the chinese mugwort is through the enlargeing back of second lens, through the aperture diaphragm, and the aperture diaphragm filters out higher diffraction wave, and the facula that comes out is exactly the light beam that the gaussian distributes. The short-focus lens is used for amplifying the Airy spots, and the aperture diaphragm is convenient to use for filtering the high-order diffracted light. The lens is used in the device, so that the price is low, and the cost can be obviously reduced.
Drawings
Fig. 1 is a schematic structural diagram of a shaping device for generating a gaussian beam according to the present invention;
fig. 2 is a schematic diagram illustrating a usage status of the shaping device for generating a gaussian beam according to the present invention.
Names corresponding to the marks in the figure:
1. the adjustable lens comprises a base, 11, a groove body, 12, an elongated slot, 13, a first screw, 2, a first plate body, 21, a positioning protrusion, 22, a second screw, 3, a second plate body, 31, a main plate body, 32, an adjustable plate body, 33, a U-shaped notch, 34, a third screw, 4, a second lens, 5, an aperture diaphragm, 6 and a first lens.
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 all belong to the protection scope of the present invention.
The embodiment of the utility model provides a:
as shown in fig. 1, a shaping device for generating a gaussian beam includes a fixing frame, and a first lens 6 and a second lens 4 disposed on the fixing frame, wherein the first lens 6 and the second lens 4 are disposed at a left-right interval, the first lens 6 is a convex lens, and the second lens 4 is a self-focusing lens. The right side of mount is equipped with aperture diaphragm 5, and the light beam of treating passes through first lens 6, second lens 4, aperture diaphragm 5 in proper order.
The fixed frame comprises a base 1 and a movable frame, the movable frame is fixed on the base through a first screw 13, and an elongated slot 12 along the vertical direction is formed in the movable frame or the base and is used for the first screw 13 to penetrate through. The base is provided with a groove body 12 for placing the movable frame, the groove body is communicated from left to right, the side wall of the groove body in the front-back direction is provided with the long groove 12, and the long groove is a U-shaped groove with an opening at the upper part and communicated from front to back. The movable frame is provided with a positioning bulge 21 matched with the long groove, and the length direction of the positioning bulge is along the up-down direction. Through the matching of the positioning bulge and the long groove, the height of the assembled movable frame in the vertical direction can be adjusted, and the first screw can be loosened for adjustment.
The adjustable shelf includes first plate body 2, second plate body 3, and location arch 21 sets up on first plate body 2, and second plate body 3 passes through second screw 22 to be fixed on first plate body 2, and second screw 22 is equipped with two, and two second screws 22 set up along controlling the direction interval, and first lens 6, second lens 4 set up on second plate body 3.
The second plate 3 includes a main plate 31 and an adjustable plate 32, the main plate 31 is fixed on the first plate 2 by the second screw 22, and the levelness of the second plate 3 can be adjusted by adjusting the second screw 22.
The right end of the main plate body 31 is provided with a U-shaped notch 33, the length direction of the U-shaped notch is along the left-right direction, the adjustable plate body is fixed at the U-shaped notch through a third screw 34, and the second lens 4 is arranged on the adjustable plate body.
The main board body 31 is a horizontal board body, the adjustable board body 32 is a vertical board body, the adjustable board body is perpendicular to the main board body, the adjustable board body is in a shape like a Chinese character 'tu', the upper portion of the adjustable board body is a convex block inserted into the U-shaped notch, and the convex block of the adjustable board body is matched with a step surface formed on the lower portion of the adjustable board body and the main board body in a positioning manner. The convex block is provided with a threaded hole for the third screw 34 to be screwed in, the head of the third screw 34 is positioned on the upper side of the main plate body 31, the outer diameter of the head of the third screw 34 is larger than the width of the U-shaped notch, and the third screw can be stably supported by a gasket matched with the third screw. And the third screw is unscrewed, the adjustable plate body can move in the U-shaped notch along the left and right directions, and the third screw is screwed after the position is adjusted, so that the position of the second lens 4 can be adjusted, and the focal length can be adjusted.
The utility model discloses an operating principle, as shown in FIG. 2, the flat top light a of incident, through the focus spot in the chinese mugwort of first lens 6 (convex lens) focus in second lens 4 (self-focusing lens) the place ahead, the light distribution in chinese mugwort spot through the enlargeing back of self-focusing lens in 5 the place ahead in aperture diaphragm if b, filters the high order diffraction wave back at the aperture diaphragm, the facula that comes out is exactly the light beam c of gaussian distribution.
The utility model discloses in, use lens, the low price can obviously reduce cost. Furthermore, a collimating lens is arranged at the aperture diaphragm, and the function of laser beam expansion can be achieved.
In other embodiments, the second lens is a self-focusing lens or a microsphere lens.
In other embodiments, the movable frame may be replaced by a lens barrel, and the first lens and the second lens are respectively mounted at two ends of the lens barrel, which is similar to the telescope adjustment principle and can adjust the focus, and therefore, the details are not described.
Claims (6)
1. A shaping device for producing a gaussian beam, comprising: including mount and first lens, the second lens of setting on the mount, interval setting about first lens, the second lens, first lens are convex lens, and the second lens are self-focusing lens or microballon lens, the right-hand aperture diaphragm that is equipped with of mount, pending light beam pass through first lens, second lens, aperture diaphragm in proper order.
2. The gaussian beam-shaping device of claim 1, wherein: the fixed frame comprises a base and a movable frame, the movable frame is fixed on the base through a first screw, and a long hole or a long groove along the vertical direction is formed in the movable frame or the base and is used for the first screw to penetrate through.
3. The gaussian beam-shaping device of claim 2, wherein: the base is provided with a groove body for placing the movable frame, the front side wall and the rear side wall of the groove body are provided with the elongated slots, the movable frame is provided with positioning bulges matched with the elongated slots, and the length directions of the positioning bulges are along the vertical direction.
4. The gaussian beam-shaping device of claim 3, wherein: the adjustable shelf comprises a first plate body and a second plate body, the positioning protrusions are arranged on the first plate body, the second plate body is fixed on the first plate body through second screws, the second screws are provided with two second screws, the two second screws are arranged at intervals along the left and right directions, and the first lens and the second lens are arranged on the second plate body.
5. The gaussian beam-shaping device of claim 4, wherein: the second plate body includes the mainboard body and adjustable plate body, and the mainboard body passes through the second fix with screw is on first plate body, and the right-hand member of mainboard body is equipped with the U-shaped notch, and the length direction of U-shaped notch is along controlling the direction, and adjustable plate body passes through the third fix with screw in this U-shaped notch department, the second lens sets up on adjustable plate body.
6. The gaussian beam-shaping device of claim 5, wherein: the adjustable plate body is a horizontal plate body, the adjustable plate body is a vertical plate body, the adjustable plate body is perpendicular to the main plate body, the adjustable plate body is in a shape like a Chinese character 'tu', the upper portion of the adjustable plate body is a protruding block inserted into the U-shaped notch, and the protruding block of the adjustable plate body is matched with a step surface formed on the lower portion of the adjustable plate body and the main plate body in a positioning mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022619261.5U CN213302690U (en) | 2020-11-12 | 2020-11-12 | Shaping device for generating Gaussian beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022619261.5U CN213302690U (en) | 2020-11-12 | 2020-11-12 | Shaping device for generating Gaussian beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213302690U true CN213302690U (en) | 2021-05-28 |
Family
ID=76016314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022619261.5U Active CN213302690U (en) | 2020-11-12 | 2020-11-12 | Shaping device for generating Gaussian beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213302690U (en) |
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2020
- 2020-11-12 CN CN202022619261.5U patent/CN213302690U/en active Active
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