A parallel line laser generator

Abstract

The utility model relates to the field of laser generation technology, in particular to a parallel line laser generator, including a housing, a laser collimator, a prism support frame, a first prism, a Powell prism and a cylindrical mirror, the laser collimator is installed on the housing, the prism support frame is fixedly connected to the housing, the first prism is horizontally installed on the support frame, and the Powell prism and the cylindrical mirror are both installed on the housing; the housing includes an upper shell cover and a lower shell, the upper shell cover includes a lens groove, a fixing clip and an upper shell cover plate, the fixing clips are two in total, and are fixed to the left and right ends of the top of the lens groove by bolts; the upper shell cover plate is connected to the center of the upper edge of the lens groove by a hinge, and the upper shell cover plate is an I-shaped; the left and right sides of the upper shell cover are inverted hook shapes, and the lower shell has a bayonet at the connection with the upper shell cover; the first prism is a parallelogram body, and the angles of the parallelogram on the first prism are 45° and 135°. The utility model can generate two linear parallel light beams with uniform energy distribution, can avoid the shortcomings of energy loss and uneven distribution in the prior art, and can effectively reduce the system's power demand for the laser. In addition, two parallel beams can be used to monitor parallel structures.

Description

Technical Field

[0001] The utility model relates to the technical field of laser generation, in particular to a parallel line laser generator. Background Art

[0002] Since a circular laser beam has a Gaussian characteristic, its cross-sectional optical power is usually high in the middle and low at the edges, which will cause the array detector to be affected by the optical power and affect the stability of the imaging quality. Therefore, a device is needed to generate a parallel laser beam with a relatively balanced cross-sectional optical power to solve the problems in the prior art. Utility Model Content

[0003] The purpose of the present application is to provide a parallel line laser generator, aiming to solve the above-mentioned problems in the prior art.

[0004] The present application provides a parallel line laser generator, comprising a housing, a laser collimation device, a prism support frame, a first prism, a Powell prism and a cylindrical mirror, wherein the laser collimation device is mounted on the housing, the prism support frame is fixedly connected to the housing, the first prism is horizontally mounted on the support frame, and the Powell prism and the cylindrical mirror are both mounted on the housing;

[0005] The housing comprises an upper shell cover and a lower shell, the upper shell cover comprises a lens slot, a fixing clip and an upper shell cover plate, the fixing clip plates are two in total and are fixed to the left and right ends of the top of the lens slot by bolts; the upper shell cover plate is connected to the center of the upper edge of the lens slot by a hinge, and the upper shell cover plate is an I-shaped; the left and right sides of the upper shell cover are inverted hook shapes, and the lower shell has a bayonet at the connection with the upper shell cover;

[0006] The first prism is a parallelogram, and the included angles of the parallelogram on the first prism are 45° and 135°.

[0007] Furthermore, the laser collimation device comprises a collimation lens holder, a laser light source and a collimation lens, the collimation lens holder is fixed on the housing, the laser light source is fixed at the bottom center of the collimation lens holder, and the collimation lens is placed on the collimation lens holder.

[0008] Furthermore, the first prism includes a first fixing frame, which is sleeved on the upper left corner of the first prism and fixed to the housing by bolts.

[0009] Furthermore, opaque plates are attached to the left and right surfaces of the first prism.

[0010] Furthermore, the Powell prism includes a first Powell prism and a second Powell prism. The first Powell prism is supported and installed above the collimating lens through a first Powell prism bracket, and the second Powell prism is supported and installed above the first prism through a second Powell prism bracket.

[0011] Furthermore, the center line of the first Powell prism coincides with the center line of the front projection of the light emitted from the collimating lens, and the center line of the second Powell prism coincides with the center line of the front projection of the light emitted from the first prism.

[0012] Furthermore, the cylindrical mirror includes a first cylindrical mirror and a second cylindrical mirror, the first cylindrical mirror is supported and installed directly above the first Powell prism by a first cylindrical mirror bracket, and the second cylindrical mirror is supported and installed directly above the second Powell prism by a second cylindrical mirror bracket.

[0013] The beneficial effects of the utility model are: the utility model can generate two linear parallel light beams with uniform energy distribution, which can avoid the shortcomings of energy loss and uneven distribution in the prior art and effectively reduce the power demand of the system for the laser. In addition, the two parallel light beams can also be used to monitor parallel structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0015] Figure 2 It is a front sectional view of the utility model.

[0016] Figure 3 Schematic diagram of the upper shell cover structure.

[0017] Figure 4 Schematic diagram of the connection structure between the Powell prism and the cylindrical mirror and the shell.

[0018] Figure 5 Laser light path diagram.

[0019] In the figure:

[0020] 1-shell; 11-upper shell cover; 111-lens groove; 112-fixing clip; 113-upper shell cover; 12-lower shell; 2-laser collimation device; 21-collimation lens bracket; 22-laser light source; 221-first incident laser; 222-second incident laser; 223-first linear light; 224-second linear light; 23-collimation lens; 3-prism support frame; 4-first prism; 41-first fixed frame; 5-opaque plate; 6-first Powell prism; 61-first Powell prism bracket; 7-second Powell prism; 71-second Powell prism bracket; 8-first cylindrical mirror; 81-first cylindrical mirror bracket; 9-second cylindrical mirror; 91-second cylindrical mirror bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-5 A parallel line laser generator shown includes a housing 1, a laser collimator 2, a prism support frame 3, a first prism 4, a Powell prism and a cylindrical mirror, the laser collimator 2 is mounted on the housing 1, the prism support frame 3 is fixedly connected to the housing, the first prism 4 is horizontally mounted on the prism support frame 3, and the Powell prism and the cylindrical mirror are both mounted on the housing 1;

[0023] The housing comprises an upper shell cover 11 and a lower shell 12. The upper shell cover 11 comprises a lens slot 111, a fixing clip 112 and an upper shell cover plate 113. There are two fixing clips 112, which are fixed to the left and right ends of the top of the lens slot 111 by bolts. After the lens is placed into the lens slot 111, the lens is fixed in the lens slot 111 by the fixing clips 112. The upper shell cover plate 113 is connected to the center of the upper edge of the lens slot 111 by hinges. The upper shell cover plate 113 is I-shaped. The upper shell cover plate 113 is used to prevent the lens from being contaminated by dust when the instrument is not in use. The left and right sides of the upper shell cover 11 are inverted hook shapes. The lower shell 12 has a bayonet at the connection with the upper shell cover 11. When the upper shell cover 11 and the lower shell 12 are closed, the inverted hook enters the bayonet to prevent the upper shell cover 11 from falling off.

[0024] The first prism 4 is a parallelogram, and the included angles of the parallelogram on the first prism 4 are 45° and 135°.

[0025] The laser collimation device 2 comprises a collimation lens bracket 21, a laser light source 22 and a collimation lens 23. The collimation lens bracket 21 is fixed on the housing 1, the laser light source 22 is fixed at the bottom center of the collimation lens bracket 21, and the collimation lens 23 is placed on the collimation lens bracket 21. In order to prevent the collimation lens 23 from moving and falling off, a small amount of glue can be adhered at the connection between the collimation lens 23 and the collimation lens bracket 21.

[0026] Opaque plates 5 are attached to the left and right surfaces of the first prism 4 .

[0027] The Powell prism includes a first Powell prism 6 and a second Powell prism 7 . The first Powell prism 6 is supported and installed above the collimating lens 23 by a first Powell prism bracket 61 , and the second Powell prism 7 is supported and installed above the first prism 4 by a second Powell prism bracket 71 .

[0028] The center line of the first Powell prism 6 coincides with the center line of the front projection of the light emitted from the collimating lens 23 , and the center line of the second Powell prism 7 coincides with the center line of the front projection of the light emitted from the first prism 4 .

[0029] The cylindrical mirror includes a first cylindrical mirror 8 and a second cylindrical mirror 9. The first cylindrical mirror 8 is supported and installed directly above the first Powell prism 6 by a first cylindrical mirror bracket 81, and the second cylindrical mirror 9 is supported and installed directly above the second Powell prism 7 by a second cylindrical mirror bracket 91.

[0030] The laser is emitted from the laser light source 22, and passes through the collimating lens 23 to form an approximately parallel cylindrical light beam. Half of the cylindrical light beam is emitted from the collimating lens 23, and the incident laser is the first incident laser 221; the other half of the cylindrical light beam is emitted into the first prism 4, and the incident laser is the second incident laser 222. The first incident laser 221 enters the first Powell prism 6, and the parameters of the incident surface of the first Powell prism 6 match the diameter of the first incident laser 221. The refracted light is output after being refracted twice by the exit plane of the first Powell prism 6, and becomes the first fan light with a linear cross section. The first fan light enters the first cylindrical mirror 8, and refracts the approximately parallel first linear light 223. The second incident laser 222 enters the second Powell prism 7, and the parameters of the incident surface of the second Powell prism 7 match the diameter of the second incident laser 222. The refracted light is output after being refracted twice by the exit plane of the second Powell prism 7, and becomes the second fan light with a linear cross section. The second fan light enters the second cylindrical mirror 9 and is refracted into approximately parallel second linear light 224. The first linear light 223 and the second linear light 224 are parallel.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A parallel line laser generator, characterized in that: It includes a shell, a laser collimator, a prism support frame, a first prism, a Powell prism and a cylindrical mirror, the laser collimator is mounted on the shell, the prism support frame is fixedly connected to the shell, the first prism is horizontally mounted on the support frame, and the Powell prism and the cylindrical mirror are both mounted on the shell; The housing comprises an upper shell cover and a lower shell, the upper shell cover comprises a lens slot, a fixing clip and an upper shell cover plate, the fixing clip plates are two in total and are fixed to the left and right ends of the top of the lens slot by bolts; the upper shell cover plate is connected to the center of the upper edge of the lens slot by a hinge, and the upper shell cover plate is an I-shaped; the left and right sides of the upper shell cover are inverted hook shapes, and the lower shell has a bayonet at the connection with the upper shell cover; The first prism is a parallelogram, and the included angles of the parallelogram on the first prism are 45° and 135°.

2. A parallel line laser generator according to claim 1, characterized in that: The laser collimation device comprises a collimation lens bracket, a laser light source and a collimation lens. The collimation lens bracket is fixed on the shell, the laser light source is fixed at the bottom center of the collimation lens bracket, and the collimation lens is placed on the collimation lens bracket.

3. A parallel line laser generator according to claim 1, characterized in that: The first prism comprises a first fixing frame, which is sleeved on the upper left corner of the first prism and fixed on the housing by bolts.

4. A parallel line laser generator according to claim 3, characterized in that: Opaque plates are attached to the left and right surfaces of the first prism.

5. A parallel line laser generator according to claim 1, characterized in that: The Powell prism includes a first Powell prism and a second Powell prism. The first Powell prism is supported and installed above the collimating lens through a first Powell prism bracket, and the second Powell prism is supported and installed above the first prism through a second Powell prism bracket.

6. A parallel line laser generator according to claim 5, characterized in that: The center line of the first Powell prism coincides with the center line of the front projection of the light emitted from the collimating lens, and the center line of the second Powell prism coincides with the center line of the front projection of the light emitted from the first prism.

7. A parallel line laser generator according to claim 1, characterized in that: The cylindrical mirror comprises a first cylindrical mirror and a second cylindrical mirror. The first cylindrical mirror is supported and installed just above the first Powell prism by a first cylindrical mirror bracket, and the second cylindrical mirror is supported and installed just above the second Powell prism by a second cylindrical mirror bracket.

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