Laser beam generating device

Abstract

The utility model provides a laser beam generating device and a laser level meter. The laser level meter emits laser beam pulses to a reflecting mirror so as to generate a plurality of mark positions on a surface (such as a ceiling). The mirror rotates about an axis and includes a plurality of surfaces facing away from the axis. When the mirror rotates, the laser pulses rebound from the surfaces to produce a plurality of marking positions.

Description

[0001] Cross - reference to related patent applications

[0002] This application claims the benefit and priority of U.S. Application No. 63 / 509,629, filed on June 22, 2023, the entire content of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to a laser beam generating device. Background Art

[0004] This disclosure generally relates to laser levels. This disclosure particularly relates to laser levels that project directly onto one or more target points that appear to be illuminated simultaneously. Summary of the Utility Model

[0005] One embodiment of the present utility model relates to a laser beam generating device, which includes: a housing; an optical guiding element that rotates relative to a rotation axis extending through the optical guiding element; a laser diode configured to emit a laser beam towards the optical guiding element; and a control device communicatively coupled to the laser diode. The control device is configured to control a plurality of laser pulses emitted by the laser diode towards the optical guiding element. The control device controls the timing of the plurality of laser pulses such that the plurality of laser pulses generate a plurality of marked positions on a working surface after interacting with the optical guiding element.

[0006] Another embodiment of the present utility model relates to a laser beam generating device, which includes: a housing; an optical guiding element that rotates relative to a rotation axis extending through the optical guiding element, the optical guiding element including a plurality of external flat surfaces; a laser diode configured to emit a laser beam towards the optical guiding element; and a control device communicatively coupled to the laser diode. The control device is configured to control a plurality of laser pulses emitted by the laser diode towards the optical guiding element. The control device controls the timing of the plurality of laser pulses such that each pulse in a first subgroup of the plurality of laser pulses projects at a different surface among the plurality of external flat surfaces, and each pulse in the first subgroup of the plurality of laser pulses intersects a first position on the working surface after interacting with the optical guiding element.

[0007] Another embodiment of the present invention relates to a laser beam generating device, which includes: a housing; an optical guiding element that rotates relative to a rotation axis extending through the optical guiding element, the optical guiding element including a plurality of external flat surfaces; a laser diode configured to emit a laser beam toward the optical guiding element; and a control device communicatively coupled to the laser diode. The control device is configured to control a plurality of laser pulses emitted by the laser diode toward a first surface among the plurality of external flat surfaces. The control device controls the timing of the plurality of laser pulses such that a first subgroup of the plurality of laser pulses intersects with the first surface among the plurality of external flat surfaces, and thereafter each pulse in the first subgroup of the plurality of laser pulses intersects with the same position on the working surface after intersecting with the optical guiding element.

[0008] Another embodiment of the present invention relates to a laser beam generating device, which includes: a housing; a mirror (such as a polygonal reflector, such as a polygonal mirror) that rotates relative to a rotation axis extending through the polygonal reflector, the polygonal reflector including a plurality of reflective flat surfaces that circumferentially surround and face away from the rotation axis. The laser beam generating device includes a laser diode configured to emit a laser beam toward the polygonal reflector and a control device communicatively coupled to the laser diode. The control device is configured to control a plurality of laser pulses emitted by the laser diode toward the polygonal reflector, and the control device controls the timing of the plurality of laser pulses such that the laser beam is reflected from the polygonal reflector to generate a plurality of different and spaced-apart marking positions on a working surface (such as a ceiling).

[0009] In various embodiments, a first subgroup of the plurality of laser pulses is reflected from a first surface among the plurality of reflective flat surfaces to generate a plurality of marking positions. In various embodiments, a second subgroup of the plurality of laser pulses is reflected from a second surface among the plurality of reflective flat surfaces to generate a plurality of marking positions, and the first subgroup is different from the second subgroup, and the first surface is different from the second surface. In various embodiments, the polygonal reflector is a mirror, and the plurality of reflective flat surfaces are external reflective flat surfaces. In various embodiments, the rotation axis of the polygonal reflector is a non-vertical rotation axis, and specifically a horizontal rotation axis perpendicular to the vertical axis defined by gravity.

[0010] Another embodiment of the present invention relates to a laser beam generating device, which includes: a housing; a reflector, such as a polygonal mirror, that rotates about a rotation axis extending through the reflector. The reflector includes a plurality of reflective flat surfaces that circumferentially surround and face away from the rotation axis. The laser beam generating device includes a laser diode configured to emit a laser beam at the reflector and a control device communicatively coupled to the laser diode. The control device is configured to control a plurality of laser pulses emitted by the laser diode at the reflector. The control device controls the timing of the plurality of laser pulses such that each pulse of the plurality of laser pulses impinges on a different one of the plurality of reflective flat surfaces and each pulse of the plurality of laser pulses intersects the same position on the working surface.

[0011] Additional features and advantages will be set forth in the detailed description which follows and, in part, will be obvious from the description, or may be learned by practice of the embodiments as set forth in the written description and / or the drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary.

[0012] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification. The drawings illustrate one or more embodiments and together with the description serve to explain the principles and operation of the various embodiments. Additionally, alternative exemplary embodiments relate to other features and combinations of features as may generally be recited in the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which like reference numerals refer to like elements, and in which:

[0014] Figure 1 is a perspective view of a laser level according to an exemplary embodiment.

[0015] Figure 2 is according to an exemplary embodiment of Figure 1 a schematic side view of a portion of a laser level.

[0016] Figure 3 is a representation of a laser pulse from a laser level according to an exemplary embodiment of Figure 1 a laser level.

[0017] Figure 4 is a representation of a laser pulse from a laser level according to an exemplary embodiment of Figure 1 a laser level and outputs from a tachometer.

[0018] Figure 5are several representations of laser pulses from a laser level and outputs from a tachometer according to an exemplary embodiment. Figure 1

[0019] Figure 6 is an exemplary image of a laser pulse of a laser beam from a laser level according to an exemplary embodiment Figure 1 intersecting a working surface.

[0020] Figure 7 is a perspective view of several components of a laser level according to an exemplary embodiment Figure 1

[0021] Figure 8 is a perspective view of several components of a laser level according to an exemplary embodiment Figure 1

[0022] Figure 9 is a schematic view of a laser level according to an exemplary embodiment Figure 1

[0023] Figure 10 is a schematic view of a laser level according to an exemplary embodiment Figure 1

[0024] Figure 11 is a schematic view of a second laser level according to an exemplary embodiment.

[0025] Figure 12 is a schematic view of a laser level according to an exemplary embodiment Figure 11 DETAILED DESCRIPTION

[0026] With general reference to the drawings, various embodiments of a laser level are shown. As will be generally understood, a laser level is used to align objects or features in an area (e.g., holes such as along a wall, pipe, conduit, etc.).

[0027] In various embodiments, the laser level described herein is configured to emit a laser at a series of target points identified by a user. The laser is redirected by an optical guiding element, such as projecting light from a rotating emission mirror (e.g., a polygon mirror having multiple surfaces) via a laser. The laser level includes a controller that controls a laser diode to emit laser beam pulses at the optical guiding element and that times the pulses to be redirected by the optical guiding element to a marked position on a working surface (e.g., a ceiling). Although the laser level emits light at each of the marked positions in sequence, because the laser level cycles very quickly between emitting light at each of the marked positions, the user perceives that each of the marked positions is present simultaneously.

[0028] Reference​​​​​​Figures 1 to 2 , shows various aspects of the laser level 110. The laser level 110 includes a housing 120, a laser diode 150, and an optical guiding element (shown as a mirror 180). The laser diode 150 is configured to emit a laser beam 152 at the mirror 180, and the mirror rotates in a direction 184 relative to a rotation axis 182 extending through the mirror 180. As will be explained, the laser level 110 emits a plurality of laser pulses 154 of the laser beam 152, and the timing of the plurality of laser pulses 154 is controlled (e.g., by a control device 130) such that the laser beam 152 produces a plurality of marked positions 156 on a working surface 200 (such as a ceiling).

[0029] In various embodiments, the rotation axis 182 is a horizontal axis. In particular, the rotation axis 182 extends perpendicular or substantially perpendicular to gravity (e.g., within X degrees, such as within 1 degree). Thus, when the mirror 180 rotates relative to the rotation axis 182, the surface 186 of the mirror 180 alternates between facing upward, facing sideways, and facing downward.

[0030] In a specific embodiment, the mirror 180 is a polygonal mirror that includes a plurality of outer reflective flat surfaces 186 that circumferentially surround and face away from the rotation axis 182, include a first surface 188, a second surface 190, and a third surface 192, and the plurality of laser pulses 154 that interface with the optical guiding element (shown as the mirror 180) include the plurality of laser pulses 154 reflected from the mirror 180. In various embodiments, the outer reflective flat surfaces 186 are symmetrically arranged about the rotation axis 182. In a specific embodiment, each surface 186 defines an angle 194 relative to each of the adjacent surfaces 186, such as the mirror 180 includes eight surfaces 186, and each surface 186 defines an angle 194 of 135 degrees relative to each of the adjacent surfaces 186.

[0031] Reference Figure 2, in use, when the mirror 180 rotates, the laser diode 150 emits pulses 154 at the surface 186. For example, if the laser diode 150 generates five marking positions 156, the laser diode 150 emits a first set of five pulses 154 at the first surface 188, where each of the five pulses 154 is timed as the mirror 180 rotates such that the pulses 154 are reflected from the first surface 188 to create a different position for each of the five marking positions 156. As the mirror 180 continues to rotate relative to the axis 182 in the direction 184, the laser diode 150 emits a second set of five pulses at the second surface 190. Similar to the first set of pulses 154, the second set of pulses 154 is timed such that the pulses 154 are reflected from the second surface 190 to create the same five marking positions 156 as the first set of pulses 154 initially created.

[0032] In various embodiments, although the laser beam 152 illuminates only a single marking position 156 in sequence at a given time, because the mirror 180 rotates so fast for the user that it appears that each of the marking positions 156 is constantly and simultaneously illuminated by the laser beam 152. Since each marking position 156 is projected multiple times per second, one or more of the marking positions 156 can move almost instantaneously rather than waiting for the projection head to change the angle of the marking position 156 while leaving the other marking positions 156 in the same position on the work surface 200.

[0033] Reference Figure 3 , the control device 130 is communicatively coupled to the laser diode 150, and the control device 130 is configured to control the laser diode 150 to emit a plurality of 210 laser pulses 154 at the mirror 180. In various embodiments, the control device 130 controls the timing of the plurality of 210 laser pulses 154 such that the plurality of 210 laser pulses 154 create a plurality of marking positions 156 on the work surface 200 after interacting with the mirror 180 (see Figures 1 to 2 ).

[0034] In various embodiments, the control device 130 times the laser pulses 154 such that they cycle through the marking positions 250, 252, 254, 256, 258 on the work surface 200. For example, when the laser level 110 generates five marking positions 156 (e.g., see Figure 2) Pulses 212, 222, 232, and 242 generate marking positions 250, pulses 214, 224, and 234 generate marking position 252, pulses 216, 226, and 236 generate marking position 254, pulses 214, 224, and 234 generate marking position 256, and pulses 214, 224, and 234 generate marking position 258. Further, pulses 212, 214, 216, 218, and 220 intersect the first surface 188 (e.g., via reflection) to generate marking position 156, pulses 222, 224, 226, 228, 230 intersect the second surface 190 (e.g., via reflection) to generate marking position 156, and pulses 232, 234, 236, 238, 240 intersect the third surface 192 (e.g., via reflection) to generate marking position 156.

[0035] In various embodiments, the mirror 180 includes a plurality of outer flat surfaces 186, and each pulse 154 in a first subgroup of the plurality of 210 laser pulses 154 (e.g., pulses 212, 214, 216, 218, 220) intersects a first surface (e.g., surface 188) of the plurality of outer flat surfaces 186 to generate each of the plurality of marking positions 250, 252, 254, 256, 258 on the work surface 200. In various embodiments, each pulse 154 in a second subgroup of the plurality of 210 laser pulses 154 that is different from the first subgroup (e.g., pulses 222, 224, 226, 228, 230) intersects a second surface (e.g., surface 190) of the plurality of outer flat surfaces 186 to generate each of the plurality of marking positions 250, 252, 254, 256, 258 on the work surface 200, and the first surface 188 and the second surface 190 are non-coplanar. In various embodiments, each pulse 154 in a third subgroup of the plurality of 210 laser pulses 154 (e.g., pulses 232, 234, 236, 238, 240) intersects a third surface (e.g., surface 192) of the plurality of outer flat surfaces 186 to generate each of the plurality of marking positions 250, 252, 254, 256, 258 on the work surface 200, and the third subgroup of the plurality of 210 laser pulses 154 is different from each of the first subgroup and the second subgroup, and the third surface 192 is non-coplanar with either the first surface 188 or the second surface 190.

[0036] In various embodiments, the mirror 180 includes a plurality of outer flat surfaces 186, and each laser pulse 154 in a first subgroup of the plurality of 210 laser pulses 154 interfaces with a different one of the plurality of outer flat surfaces 186 to create each of the plurality of marking locations 156 on the work surface 200. For example, laser pulse 212 interfaces with the first surface 188 to create marking location 250, laser pulse 224 interfaces with the second surface 190 to create marking location 252, and laser pulse 226 interfaces with the third surface 192 to create marking location 254.

[0037] In various embodiments, the control device 130 controls the timing of the plurality of 210 laser pulses 154 such that each pulse 154 in a first subgroup of the plurality of laser pulses 154 impinges on a different one of the plurality of outer flat surfaces 186, and each pulse 154 in the first subgroup of the plurality of laser pulses 154 intersects a first location (e.g., marking location 250) on the work surface 200 after interfacing with the mirror 180. For example, pulses 212, 222, and 232 interface with the first surface 188, the second surface 190, and the third surface 192, respectively, to create marking location 250.

[0038] In various embodiments, the control device 130 controls the timing of the plurality of 210 laser pulses 154 such that a first subgroup of the plurality of 210 laser pulses 154 interfaces with the first surface 188 of the plurality of outer flat surfaces 186, and thereafter each pulse 154 in the first subgroup of the plurality of laser pulses 154 intersects the same location (e.g., marking location 250) on the work surface 200 after interfacing with the mirror 180. For example, if the mirror 180 includes four surfaces 186, pulses 212 and 242 interface with the first surface 186 to create marking location 250.

[0039] In various embodiments, a subgroup of the laser pulses 154 described herein includes three or more pulses 154, such as exactly three pulses 154.

[0040] Reference Figure 4 shows various aspects of two series of laser pulses and the delay of the laser pulses. Series 164 is a first series of laser pulses 154, such as a series of laser pulses 154 projected at a single marking location 156. Series 166 is a second series of laser pulses 154, such as a series of laser pulses 154 projected at a single marking location 156 different from the marking location 156 created by the first series 164. Each of the laser pulses 154 in series 166 is delayed by the delay shown in series 168.

[0041] Reference Figure 5, showing two series of laser pulses and various aspects of the extension of the laser pulses. Series 170 is the first series of laser pulses 154 at the marking position 156. Series 172 is the second series of laser pulses 154, and each of the laser pulses 154 is longer than series 170, which results in a longer length of the marking position 156 (see Figure 6 for the exemplary marking position 158 in the marking position 156).

[0042] Reference Figure 6 , showing various aspects of the exemplary marking position 158 in the marking position 156. The leading edge 160 of the marking position 158 (i.e., the position where the laser pulse 154 starts to intersect the working surface) has a slight gradient compared to the trailing edge 162 because there is a non-zero rise time for various embodiments of the laser diode 150. In contrast, for various embodiments of the laser diode 150, the trailing edge 162 of the marking position 156 has a cleaner end compared to the leading edge 160.

[0043] Reference Figures 7 to 8 , showing various aspects of the laser level 110. The laser level 110 includes: a housing 120; a laser diode 150 that emits laser pulses 154 of a laser beam 152; a control device 130 that is communicatively coupled to the laser diode 150; a tachometer 132 that is used to control the timing of the pulses 154; and a power supply 142 that is used to supply power to one or more other components in the laser level 110. The laser level 110 also optionally includes an oscilloscope 140 to measure and / or display a representation of the pulses 154 emitted by the laser diode 150. In one embodiment, the signal from the tachometer 132 is displayed on the oscilloscope 140. In various embodiments, the control device 130 is configured to control the laser diode 150 to emit a plurality of laser pulses 154 of the laser beam 152 at the mirror 180.

[0044] In various embodiments, the control device 130 controls the timing of the plurality of laser pulses 154 such that the laser beam 152 produces a plurality of marking positions 156 on a working surface 200 (such as a ceiling). In various embodiments, the control device 130 controls the timing of the plurality of laser pulses 154 such that (1) each of the plurality of laser pulses 154 is projected at a different surface 186 of the plurality of external reflective flat surfaces 186 of the mirror 180, and (2) each of the plurality of laser pulses 154 intersects the same position on the working surface 200 (e.g., each pulse 154 intersects the working surface 200 at a shared position).

[0045] In various embodiments, each of a first subgroup of the plurality of laser pulses 154 is reflected from a first surface (e.g., surface 188) of the plurality of external reflective flat surfaces 186 to produce a plurality of marking locations 156 on the work surface 200. In various embodiments, each of a second subgroup of the plurality of laser pulses 154 is reflected from a second surface (e.g., surface 190) of the plurality of external reflective flat surfaces 186 to produce the same marking locations 156 as previously produced by the first group of pulses 154, and the first subgroup is different from the second subgroup, and the first surface 188 is different from the second surface 190.

[0046] Reference Figures 9 to 10 , aspects of a laser level 110 are shown, where the laser level 110 includes a laser rangefinder 134. The laser rangefinder 134 measures the height 136 from the laser level 110 to the work surface 200 (such as a ceiling). In various embodiments, the laser level 110 assumes that the work surface 200 is horizontal and lies in the same plane as the distance measured directly above the laser level 110.

[0047] In various embodiments, the laser rangefinder 134 makes measurements at multiple locations on the ceiling, such as by rotating the laser rangefinder 134. Thus, the laser rangefinder 134 can provide measurement results to the laser level 110, and thus the laser level 110 can map the work surface 200 to determine the ceiling slope and any obstacles.

[0048] Reference Figures 11 to 12 , aspects of a laser level 210 are shown. Except for the differences discussed herein, the laser level 210 is substantially the same as the laser level 110. In particular, the laser diode 290 emits light towards an inclined plane mirror 280. This approach provides the opportunity for a 360-degree scan angle and allows for a slower laser switching time because the pulses do not repeat on multiple sides in one rotation. In various embodiments, the laser rangefinder included in the laser level 210 can also reflect light from the mirror 280 to measure and / or map the work surface (such as a ceiling) to determine the ceiling slope and any obstacles.

[0049] It should be understood that the drawings show in detail exemplary embodiments, and it should be understood that the present application is not limited to the details or methods set forth in the specification or shown in the drawings. It should also be understood that the terms are for descriptive purposes only and should not be considered restrictive.

[0050] According to this specification, additional modifications and alternative embodiments of various aspects of the present disclosure will be apparent to those skilled in the art. Accordingly, this specification should be construed as merely illustrative. The structures and arrangements shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in the present disclosure, many modifications can be made (e.g., changes in the size, dimensions, structure, shape and proportions of various elements, parameter values, mounting arrangements, use of materials, colors, orientations, etc.) without substantially departing from the novel teachings and advantages of the subject matter described herein. Some elements shown as integrally formed can be constructed of multiple parts or elements, the positions of the elements can be reversed or otherwise changed, and the nature or number or position of discrete elements can be altered or changed. According to alternative embodiments, the order or sequence of any process, logical algorithm or method step can be changed or reordered. Other substitutions, modifications, changes and omissions can also be made in the design, operating conditions and arrangements of the various exemplary embodiments without departing from the scope of the present disclosure.

[0051] Unless otherwise expressly specified, no method set forth herein is intended to be construed as requiring that its steps be performed in a particular order. Accordingly, where a method claim does not actually recite an order to be followed by its steps or where no particular order is specifically recited in the claims or the specification, no particular order should be inferred. Additionally, as used herein, the article "a" is intended to include one or more components or elements and is not to be construed as being limited to only one.

[0052] For the purposes of the present disclosure, the term "coupled" means that two components are directly or indirectly coupled to each other. Such a coupling can be fixed in nature or can be movable in nature. Such a coupling can be achieved by integrally forming two members and any additional intermediate members into a single unitary body with each other, or by attaching two members or two members and any additional members to each other. Such a coupling can be permanent in nature or, alternatively, can be removable or releasable in nature. As used herein, "rigidly coupled" means that two components are coupled in such a way that the components move together in a fixed positional relationship when subjected to a force.

[0053] Although the present application recites a particular combination of features in the appended claims, the various embodiments of the present invention relate to any combination of any of the features described herein (whether or not such a combination is currently claimed), and any such combination of features can be claimed in the present application or in a future application. Any feature, element or component of any of the exemplary embodiments discussed above can be used alone or in combination with any feature, element or component of any of the other exemplary embodiments discussed above.

[0054] In various exemplary embodiments, the relative dimensions (including angles, lengths, and radii) shown in the drawings are proportional. Actual measurements of the drawings will disclose the relative dimensions, angles, and proportions of the various exemplary embodiments. The various exemplary embodiments extend to various ranges of absolute and relative dimensions, angles, and proportions that can be determined from the drawings. The various exemplary embodiments include any combination of one or more relative dimensions or angles that can be determined from the drawings. Further, the actual dimensions not explicitly stated in this specification can be determined by using the ratios of the dimensions measured in the drawings in combination with the explicit dimensions stated in this specification.

Claims

1. A laser beam generating device, characterized in that: include: case; a light directing element that rotates relative to an axis of rotation extending through the light directing element; a laser diode configured to emit a laser beam toward the light guiding element; as well as A control device is communicatively connected to the laser diode, and is configured to control the laser diode to emit multiple laser pulses of the laser beam toward the light guiding element, wherein the control device controls the timing of the multiple laser pulses so that the multiple laser pulses produce multiple marking positions on the working surface after interfacing with the light guiding element.

2. The laser beam generating device according to claim 1, characterized in that: The light directing element includes a plurality of external planar surfaces, and wherein each pulse of the first subset of the plurality of laser pulses interfaces with a first surface of the plurality of external planar surfaces to produce each of the plurality of marking locations on the working surface.

3. The laser beam generating device according to claim 2, characterized in that: Each pulse in a second subset of the plurality of laser pulses, different from the first subset, interfaces with a second surface of the plurality of exterior planar surfaces to produce each of the plurality of mark locations on the work surface, wherein the first surface is not coplanar with the second surface.

4. The laser beam generating device according to claim 3, characterized in that: Each pulse in a third subset of the plurality of laser pulses intersects a third surface of the plurality of exterior planar surfaces to produce each of the plurality of mark locations on the work surface, wherein the third subset of the plurality of laser pulses is different from each of the first subset and the second subset, and wherein the third surface is not coplanar with either the first surface or the second surface.

5. The laser beam generating device according to claim 2, characterized in that: The plurality of exterior planar surfaces circumferentially surround and face away from the axis of rotation.

6. The laser beam generating device according to claim 5, characterized in that: The plurality of outer planar surfaces are symmetrically arranged about the rotation axis, and wherein the rotation axis is a horizontal axis.

7. The laser beam generating device according to claim 2, characterized in that: The light directing element comprises a reflector, wherein the plurality of external planar surfaces comprises a plurality of external reflective planar surfaces, and wherein the plurality of laser pulses that interface with the light directing element comprises a plurality of laser pulses that are reflected from the plurality of external reflective planar surfaces.

8. The laser beam generating device according to claim 1, characterized in that: The light directing element includes a reflector, and wherein the plurality of laser pulses that interface with the light directing element include a plurality of laser pulses reflected from the reflector.

9. The laser beam generating device according to claim 1, characterized in that: The work surface is the ceiling.

10. The laser beam generating device according to claim 1, characterized in that: The light directing element includes a plurality of external planar surfaces, and wherein each pulse in the first subset of the plurality of laser pulses interfaces with a different one of the plurality of external planar surfaces to produce each of the plurality of marking locations on the working surface.

11. A laser beam generating device, characterized in that: include: case; a light directing element that rotates relative to an axis of rotation extending through the light directing element, the light directing element comprising a plurality of exterior planar surfaces; a laser diode configured to emit a laser beam toward the light guiding element; as well as a control device communicatively coupled to the laser diode, the control device being configured to control the laser diode to emit a plurality of laser pulses of the laser beam toward the light guiding element, wherein the control device controls the timing of the plurality of laser pulses such that: Each pulse of the first subset of the plurality of laser pulses impinges at a different surface of the plurality of external planar surfaces; and Each pulse of the first subset of the plurality of laser pulses intersects a first location on the work surface after interacting with the light directing element.

12. The laser beam generating device according to claim 11, characterized in that: The work surface is the ceiling.

13. The laser beam generating device according to claim 11, characterized in that: The first subset of the plurality of laser pulses includes at least three laser pulses.

14. The laser beam generating device according to claim 11, characterized in that: The plurality of exterior planar surfaces circumferentially surround and face away from the axis of rotation.

15. The laser beam generating device according to claim 14, characterized in that: The plurality of outer flat surfaces are symmetrically arranged about the rotation axis.

16. The laser beam generating device according to claim 11, characterized in that: The light directing element includes a reflector, and wherein the plurality of laser pulses that interface with the light directing element include a plurality of laser pulses reflected from the reflector.

17. A laser beam generating device, characterized in that: include: case; a light directing element that rotates relative to an axis of rotation extending through the light directing element, the light directing element comprising a plurality of exterior planar surfaces; a laser diode configured to emit a laser beam toward the light guiding element; as well as a control device communicatively coupled to the laser diode, the control device being configured to control the laser diode to emit a plurality of laser pulses of the laser beam toward a first surface among the plurality of external flat surfaces, wherein the control device controls timing of the plurality of laser pulses so that a first subset of the plurality of laser pulses intersects the first surface among the plurality of external flat surfaces and thereafter each pulse in the first subset of the plurality of laser pulses intersects the same location on the working surface after intersecting with the light guiding element.

18. The laser beam generating device according to claim 17, characterized in that: The plurality of exterior planar surfaces circumferentially surround and face away from the axis of rotation.

19. The laser beam generating device according to claim 18, characterized in that: The plurality of outer flat surfaces are symmetrically arranged about the rotation axis.

20. The laser beam generating device according to claim 17, characterized in that: The light directing element includes a reflector, and wherein the plurality of laser pulses that interface with the light directing element include a plurality of laser pulses reflected from the reflector.

Images