An optical automatic indication system

Abstract

The present invention provides an optical automatic indication system, belonging to the technical field of lasers. The optical automatic indication system of the present invention includes: an indication light source, a beam combiner, a controller, and at least one spot detection device. Among them, the indication light source is used to generate indication light; the beam combiner is arranged on the outgoing light path of the light to be indicated, and the beam combiner is used to guide the indication light to the outgoing light path; at least one spot detection device is arranged on the outgoing light path, and the spot detection device detects the relative position of the indication light and the light to be indicated on the outgoing light path; the controller is electrically connected to the indication light source, the beam combiner, and at least one spot detection device respectively; the controller adjusts the indication light direction by controlling the indication light source and the beam combiner, so that the indication light and the light to be indicated are combined and emitted. The present invention can correct the coaxial deviation between the indication light and the light to be indicated in real time, and provide a real-time high-quality spot indication for the light to be indicated.

Description

Technical Field

[0001] The present invention relates to the technical field of lasers, and more particularly to an optical automatic indication system. Background Art

[0002] Mid-infrared lasers with fixed or adjustable wavelengths have been widely used in the infrared spectrum, including ambient gas monitoring and exhaled breath analysis, as well as microscopes, minimally invasive laser surgery, and non-metallic laser processing (e.g., cutting, drilling, surface treatment, etc.). However, infrared lasers are invisible lasers. Considering the convenience of use safety and commissioning production, infrared lasers need to be equipped with an auxiliary indication laser in the visible light band to mark the spot position of the infrared laser.

[0003] Currently, the indication lasers commonly used in the prior art are mostly integrated with infrared lasers. When the device leaves the factory, the indication laser and the infrared laser are adjusted to be coaxial. However, this integrated indication laser device is prone to deviation of the optical axis of the indication laser from the infrared laser due to environmental changes and stress deformation caused by incorrect installation, resulting in the accuracy of the coaxiality of the indication laser and the infrared laser not meeting the usage requirements, such as the long-distance transmission of the laser.

[0004] Therefore, it is necessary to design an optical automatic indication system that can automatically align the indication light with the indicated light coaxially to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the present invention provides an optical automatic indication system that can automatically generate an indication light that is coaxial with the indicated light on the outgoing light path of the indicated light, thereby solving the technical problem that the indication light emitted by the integrated laser device in the prior art is prone to deviate from the optical axis of the indicated light due to external forces.

[0006] To achieve the above object and other related objects, the present invention provides an optical automatic indication system, which includes: an indication light source, a beam combiner, a controller, and at least one spot detection device.

[0007] Among them, the indication light source is used to generate the indication light; the beam combiner is arranged on the outgoing light path of the indicated light, and the beam combiner is used to guide the indication light in the direction of the outgoing light path; at least one spot detection device is arranged on the outgoing light path, and the spot detection device is used to detect the relative position of the indication light and the indicated light in the direction of the outgoing light path; the controller is electrically connected to the indication light source, the beam combiner, and at least one spot detection device respectively; the controller adjusts the pointing of the indication light by controlling the indication light source and the beam combiner according to the position difference between the indication light and the indicated light on the outgoing light path, so that the indication light and the indicated light are combined and emitted.

[0008] In an example of the present invention, the indicated light is an invisible laser, and the indicating light is a visible laser.

[0009] In an example of the present invention, the indicating light source includes an indicating light emitting device and a self-adjusting reflector. The indicating light emitting device generates the indicating light, and the self-adjusting reflector reflects the indicating light to the beam combiner.

[0010] In an example of the present invention, the self-adjusting reflector is arranged on an electric adjusting frame, and the electric adjusting frame is electrically connected to the controller.

[0011] In an example of the present invention, the indicating light source includes an indicating light emitting device. The indicating light emitting device is arranged on an electric adjusting frame, the light emitting end of the indicating light emitting device faces the beam combiner, and the electric adjusting frame is electrically connected to the controller.

[0012] In an example of the present invention, the beam combiner includes an electric adjusting frame and a beam combining mirror; the beam combining mirror is arranged on the electric adjusting frame. The beam combining mirror transmits the indicated light and reflects the indicating light on the outgoing light path; the electric adjusting frame is electrically connected to the controller, and the electric adjusting frame is controlled by the controller to adjust the angle of the beam combining mirror relative to the outgoing light path.

[0013] In an example of the present invention, the spot detection device includes a spot sampling mirror, a spot display card, and a spot detection camera. The spot sampling mirror is arranged on the outgoing light path. The spot sampling mirror partially reflects the indicated light and the indicating light onto the spot display card. The spot display card is used to display the spot positions of the indicated light and the indicating light, and the spot detection camera is used to record the spot positions of the indicated light and the indicating light.

[0014] In an example of the present invention, the spot sampling mirror and the spot display card are arranged in parallel.

[0015] In an example of the present invention, the number of the spot detection devices is two, and the two spot detection devices are sequentially arranged on one side of the beam combiner along the direction of the outgoing light path.

[0016] In an example of the present invention, the indicating light source, the beam combiner, the controller, and at least one spot detection device of the optical automatic indication system are encapsulated in a housing. An outgoing light channel is arranged on the housing, and the beam combiner and at least one spot detection device are arranged on the outgoing light channel.

[0017] In the optical automatic indication system of the present invention, an indication light can be emitted on the outgoing light path of the indicated light through the cooperation of an indication light source and a beam combiner, and at least one spot detection device arranged on the outgoing light path can be used to detect in real time the coaxial situation of the indication light and the indicated light on the outgoing light path. The controller is used to control the indication light source and the beam combiner to adjust the indication light direction according to the position difference between the indication light and the indicated light, so that the indication light and the indicated light are combined and emitted, thereby correcting in real time the coaxial deviation between the indication light and the indicated light and providing a real-time high-quality spot indication. Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the optical automatic indication system in an embodiment of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the optical automatic indication system in another embodiment of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the beam combiner in an embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the spot detection device in an embodiment of the present invention.

[0023] Description of Component Labels

[0024] 100, indication light source; 110, indication light emitting device; 111, indication light; 120, self-adjusting mirror; 200, beam combiner; 210, beam combining mirror; 220, third electric adjustment bracket; 300, spot detection device; 310, spot sampling mirror; 320, spot display card; 330, spot detection camera; 400, controller; 500, housing; 600, indicated light source; 610, indicated light. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present invention are for describing specific implementation manners and are not intended to limit the protection scope of the present invention. The test methods without specific conditions noted in the following embodiments are generally in accordance with conventional conditions or the conditions recommended by each manufacturer.

[0026] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration and are not intended to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships should also be regarded as the scope of implementation of the present invention without substantial change in technical content.

[0027] Please refer to Figures 1 to 4 , the present invention provides an optical automatic indication system that can automatically generate an indication light that is coaxial with the indicated light on the outgoing light path of the indicated light, thereby solving the technical problem that the indication light emitted by the integrated laser device in the prior art is easily deviated from the optical axis of the indicated light due to external forces.

[0028] Please refer to Figure 1 and Figure 2 , the above optical automatic indication system is arranged on the outgoing light path of the indicated light 610, can generate an indication light 111 that is transmitted along the outgoing light path of the indicated light 610, and by monitoring the coaxial situation of the indication light 111 and the indicated light 610 in real time, adjusts the pointing of the indication light 111 in real time according to the position difference between the indication light 111 and the indicated light 610, so that the indication light 111 is automatically coaxial with the indicated light 610 and exits, thereby providing a real-time high-quality spot indication for the indicated light 610.

[0029] Among them, the optical automatic indication system does not need to be integrated with the indicated light source 600. It only needs to be placed on any section of the outgoing light path where the indicated light source 600 emits the indicated light 610 to automatically calibrate and generate an indication light 111 that is coaxial with the indicated light 610 and exits.

[0030] Please refer to Figure 1 and Figure 2 , the above optical automatic indication system includes an indication light source 100, a beam combiner 200, a controller 400 and at least one spot detection device 300.

[0031] Please refer toFigure 1 and Figure 2 The indicating light source 100 is arranged on one side of the outgoing light path of the indicated light 610. The indicating light source 100 is used to generate an indicating light 111 and emit the indicating light 111 to the beam combiner 200. Among them, the indicating light source 100 is electrically connected to the controller 400 and can be controlled by the controller 400 to adjust the position and direction of the emitted indicating light 111 so as to cooperate with the beam combiner 200 to guide the indicating light 111 to the outgoing light path.

[0032] Please refer to Figure 1 and Figure 2 The beam combiner 200 is arranged on the outgoing light path of the indicated light 610. The beam combiner 200 can reflect the indicating light 111 and transmit the indicated light 610 along the direction of the outgoing light path on the outgoing light path, so as to play a role in guiding the indicating light 111 to be emitted on the same outgoing light path as the indicated light 610. Among them, the beam combiner 200 is electrically connected to the controller 400, and the beam combiner 200 can be controlled by the controller 400 to adjust the angle of the beam combiner 200 relative to the indicating light 111 and the outgoing light path, so that the indicating light 111 is reflected by the beam combiner 200 to the outgoing light path, and then is combined and emitted with the indicated light 610.

[0033] Please refer to Figure 1 and Figure 2 The at least one spot detection device 300 is sequentially arranged on one side of the laser output end of the beam combiner 200 along the outgoing light path. The at least one spot detection device 300 detects the spot positions of the indicating light 111 and the indicated light 610 at different positions on the outgoing light path, so as to determine the relative positions of the indicating light 111 and the indicated light 610 in the direction of the outgoing light path. And the at least one spot detection device 300 is electrically connected to the controller 400, and the spot detection device 300 uploads the detected spot position information of the indicating light 111 and the indicated light 610 to the controller 400, so as to facilitate the controller 400 to judge the coaxial state of the indicating light 111 and the indicated light 610. Specifically, when all the spot detection devices 300 detect that the spot positions of the indicating light 111 and the indicated light 610 coincide, it is determined that the indicating light 111 and the indicated light 610 are in a coaxial emission state; when at least one spot detection device 300 detects a difference in the spot positions of the indicating light 111 and the indicated light 610, it is determined that there is a coaxial deviation between the outgoing directions of the indicating light 111 and the indicated light 610.

[0034] Please refer to Figure 1 and Figure 2, the controller 400 is electrically connected to the indicating light source 100, the beam combiner 200, and at least one spot detection device 300 respectively. The controller 400 fits the position coordinate deviation of the spots formed by the indicating light 111 and the indicated light 610 at the detection position according to the spot position information of the indicating light 111 and the indicated light 610 uploaded by the spot detection device 300, and then calculates the coaxial deviation between the indicating light 111 and the indicated light 610. Then, according to the position difference between the indicating light 111 and the indicated light 610 on the outgoing light path, the controller 400 adjusts the pointing of the indicating light 111 by controlling the indicating light source 100 and the beam combiner 200, and adjusts the indicating light 111 to within the allowable deviation range coaxial with the indicated light 610, so that the indicating light 111 and the indicated light 610 are combined and emitted, realizing the indication function of the indicating light 111 to the indicated light 610. In addition, the controller 400 also takes into account the control of the on and off of the indicating light source 100 to emit the indicating light 111.

[0035] Please refer to Figure 1 and Figure 2 , it should be noted that the type of the indicated light source applicable to the optical automatic indication system of the present invention is not limited. The optical automatic indication system can be applied to the laser field to provide indication for the emitted laser, and can also be applied to other highly directional light sources to provide indication for the non-laser generated by them, for example, LED light sources. In an embodiment of the present invention, the optical automatic indication system is applied to the laser field, the indicated light 610 generated by the indicated light source is invisible laser, and the output wavelength of the indicated light 610 is in the range of the invisible light band. For example, the indicated light 610 can be infrared laser, ultraviolet laser or terahertz laser; the indicating light 111 generated by the indicating light source 110 is visible laser, and the output wavelength of the indicating light 111 is in the range of the visible light band, so as to provide an indication function for the indicated light 610 that cannot be observed by the human eye. For example, the indicating light 111 can be red laser or green laser.

[0036] Please refer to Figure 1, in an embodiment of the present invention, the indicating light source 100 includes an indicating light emitting device 110 and a self-adjusting mirror 120. The indicating light emitting device 110 and the self-adjusting mirror 120 are arranged on the same side of the outgoing optical path of the indicated light 610. The indicating light emitting device 110 and the self-adjusting mirror 120 are arranged in sequence. The self-adjusting mirror 120 is oppositely arranged with respect to the beam combiner 200, so that the mirror surface of the self-adjusting mirror 120 faces both the beam combiner 200 and the indicating light emitting device 110. Among them, the light emitting end of the indicating light emitting device 110 and the mirror surface of the self-adjusting mirror 120 are both arranged at the same height as the outgoing optical path of the indicated light 610. The indicating light emitting device 110 emits the indicating light 111 along the direction parallel to the outgoing optical path, so as to emit the indicating light 111 onto the self-adjusting mirror 120, and the self-adjusting mirror 120 reflects the indicating light 111 incident on the mirror surface to the beam combiner 200.

[0037] Among them, the self-adjusting mirror 120 is electrically connected to the controller 400. The self-adjusting mirror 120 is controlled by the controller 400 to adjust the incident angle of the mirror surface facing the indicating light 111, so as to reflect the indicating light 111 to the beam combiner 200 and cooperate with the beam combiner 200 to guide the indicating light 111 and the indicated light 610 to be combined and emitted. Specifically, in this embodiment, the self-adjusting mirror 120 is arranged on the first electric adjustment bracket, and the first electric adjustment bracket is electrically connected to the controller 400. The first electric adjustment bracket is controlled by the controller 400 to adjust the direction of the indicating light 111 incident on the self-adjusting mirror 120. Among them, the first electric adjustment bracket is a three-dimensional electric adjustment bracket, which can adjust the transmission direction of the indicating light 111 in three dimensions.

[0038] Please refer to Figure 2 , in another embodiment of the present invention, the indicating light source 100 includes an indicating light emitting device 110. The indicating light emitting device 110 is arranged on the second electric adjustment bracket. The indicating light emitting device 110 is arranged on one side of the outgoing optical path of the indicated light 610, and the light emitting end of the indicating light emitting device 110 faces the beam combiner 200 directly, which enables the indicating light 111 generated by the indicating light emitting device 110 to be directly emitted onto the beam combiner 200. Among them, the second electric adjustment bracket is electrically connected to the controller 400. The second electric adjustment bracket is a three-dimensional electric adjustment bracket. The second electric adjustment bracket is controlled by the controller 400 to adjust the outgoing direction of the indicating light 111 generated by the indicating light emitting device 110 in three dimensions, so as to cooperate with the angle adjustment of the beam combiner 200 to guide the indicating light 111 and the indicated light 610 to be combined and emitted.

[0039] Please refer to Figures 1 to 3, in an embodiment of the present invention, the beam combiner 200 includes a third electric adjustment bracket 220 and a beam combining mirror 210. The beam combining mirror 210 is disposed on the third electric adjustment bracket 220 and is located on the outgoing light path of the indicated light 610; the third electric adjustment bracket 220 is electrically connected to the controller 400 and is controlled by the controller 400 to adjust the angle of the beam combining mirror 210 relative to the outgoing light path, so as to guide the indicating light 111 incident on the beam combining mirror 210 to be combined and emitted with the indicated light 610. Specifically, the beam combining mirror 210 transmits the indicated light 610 on the outgoing light path without changing the direction of the indicated light 610, so that the indicated light 610 continues to be emitted along the direction of the outgoing light path; at the same time, the beam combining mirror 210 also reflects the indicating light 111 incident on the beam combining mirror 210, and by adjusting the angle of the beam combining mirror 210 relative to the indicating light 111 through the third electric adjustment bracket 220, the direction of the indicating light 111 reflected by the beam combining mirror 210 can be adjusted, thereby guiding the indicating light 111 to be combined and emitted with the indicated light 610. Among them, the third electric adjustment bracket 220 in this embodiment is a three-dimensional electric adjustment bracket, which can adjust the mirror surface direction of the beam combining mirror 210 in three dimensions.

[0040] Please refer to Figure 1 , in an embodiment of the present invention, the number of the spot detection devices 300 is two, and the two spot detection devices 300 are sequentially arranged on one side of the laser output end of the beam combiner 200 along the outgoing light path direction. The two spot detection devices 300 detect the spot positions of the indicating light 111 and the indicated light 610 at different positions on the outgoing light path, so as to determine the coaxial deviation of the transmission direction between the indicating light 111 and the indicated light 610.

[0041] Please refer to Figure 4 , in an embodiment of the present invention, the spot detection device 300 includes a spot sampling mirror 310, a spot display card 320, and a spot detection camera 330. The spot sampling mirror 310 is disposed on the outgoing light path, the spot display card 320 is disposed on the side of the spot sampling mirror 310 that reflects the laser, and the lens of the spot detection camera 330 is aligned with the spot display card 320 to capture the spot pattern displayed on the spot display card 320, so as to record the spot positions of the indicating light 111 and the indicated light 610 formed on the spot display card 320. Among them, the spot sampling mirror 310 transmits most of the indicating light 111 and the indicated light 610 on the outgoing light path and reflects the remaining small part of the indicating light 111 and the indicated light 610, so as to partially reflect the indicating light 111 and the indicated light 610 to the spot display card 320. The spot display card 320 displays the spots of the indicating light 111 and the indicated light 610 incident on the card surface, and the spot detection camera 330 captures the spot display card 320 to record the relative positions of the spots of the indicating light 111 and the indicated light 610.

[0042] Please refer to Figure 4 , in this embodiment, the relative positions of the indicating light 111 and the indicated light 610 recorded by the spot detection device 300 are consistent with the actual situation. The spot sampling mirror 310 and the spot display card 320 in the spot detection device 300 are arranged in parallel to ensure that the spot position displayed by the spot is consistent with the position where the indicating light 111 and the indicated light 610 form a spot on the spot sampling mirror 310.

[0043] Please refer to Figure 1 and Figure 2 , in an embodiment of the present invention, the optical automatic indication system is encapsulated in the housing 500. Specifically, the indicating light source 100, the beam combiner 200, the controller 400 and at least one spot detection device 300 of the optical automatic indication system are encapsulated in the housing 500. An outgoing light channel is provided in the housing 500 for the indicated light 610 and the indicating light 111 to exit along the outgoing light path. Among them, the beam combiner 200 and at least one spot detection device 300 are sequentially arranged on the outgoing light channel in the housing 500.

[0044] In the optical automatic indication system of the present invention, the indicating light can be emitted on the outgoing light path of the indicated light through the cooperation of the indicating light source and the beam combiner, and at least one spot detection device arranged on the outgoing light path can be used to detect the coaxial situation of the indicating light and the indicated light on the outgoing light path in real time. The controller is used to control the indicating light source and the beam combiner to adjust the pointing of the indicating light according to the position difference between the indicating light and the indicated light, so that the indicating light and the indicated light are combined and emitted, thereby correcting the coaxial deviation between the indicating light and the indicated light in real time and providing a real-time high-quality spot indication. Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and application significance.

[0045] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An optical automatic indication system, characterized in that, Comprising: An indicating light source for generating indicating light; A beam combiner disposed on the outgoing light path of the indicated light, and the beam combiner is used to guide the indicating light in the direction of the outgoing light path; Two spot detection devices sequentially arranged on one side of the beam combiner along the direction of the outgoing light path, and the spot detection devices are used to detect the relative positions of the indicating light and the indicated light in the direction of the outgoing light path. The indicated light is invisible laser light, and the indicating light is visible laser light. Wherein, the spot detection device includes a spot sampling mirror, a spot display card, and a spot detection camera. The spot sampling mirror is disposed on the outgoing light path, and the spot sampling mirror partially reflects the indicated light and the indicating light onto the spot display card. The spot display card is used to display the spot positions of the indicated light and the indicating light, and the spot detection camera is used to record the spot positions of the indicated light and the indicating light; A controller electrically connected to the indicating light source, the beam combiner, and the two spot detection devices respectively. The controller adjusts the pointing of the indicating light by controlling the indicating light source and the beam combiner according to the position difference between the indicating light and the indicated light on the outgoing light path, and guides the indicating light and the indicated light to be combined and emitted.

2. The optical automatic indication system according to claim 1, characterized in that, The indicating light source includes an indicating light emitting device and a self-adjusting reflector. The indicating light emitting device generates indicating light, and the self-adjusting reflector reflects the indicating light to the beam combiner.

3. The optical automatic indication system according to claim 2, wherein, The self-adjusting reflector is disposed on an electric adjusting bracket, and the electric adjusting bracket is electrically connected to the controller.

4. The optical automatic indication system according to claim 1, characterized in that The indicating light source includes an indicating light emitting device disposed on an electric adjusting bracket. The light emitting end of the indicating light emitting device faces the beam combiner, and the electric adjusting bracket is electrically connected to the controller.

5. The optical automatic indication system according to claim 1, characterized in that, The beam combiner includes an electric adjusting bracket and a beam combining mirror. The beam combining mirror is disposed on the electric adjusting bracket. The beam combining mirror transmits the indicated light on the outgoing light path and reflects the indicating light. The electric adjusting bracket is electrically connected to the controller, and the electric adjusting bracket is controlled by the controller to adjust the angle of the beam combining mirror relative to the outgoing light path.

6. The optical automatic indication system according to claim 1, characterized in that, The spot sampling mirror and the spot display card are arranged in parallel.

7. The optical automatic indication system according to claim 1, characterized in that, The indicating light source, the beam combiner, the controller, and at least one spot detection device of the optical automatic indicating system are encapsulated in a housing. An outgoing light channel is provided on the housing, and the beam combiner and at least one spot detection device are disposed on the outgoing light channel.

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