Multipath light splitting device

Abstract

The utility model provides a multipath light splitting device, comprising a housing and a plurality of light splitting assemblies, the housing is internally provided with a cavity, the housing is provided with a light inlet hole, a first light outlet hole and a second light outlet hole, and the light inlet hole, the first light outlet hole and the second light outlet hole are all communicated with the cavity. The light inlet hole and the first light outlet hole are coaxially arranged, a certain angle is formed between the central axis of the second light outlet holes and the central axis of the light inlet hole, the number of the second light outlet holes is multiple, and the multiple second light outlet holes are arranged at intervals; a plurality of light splitting assemblies are arranged between the light inlet hole and the first light outlet hole, the light splitting assemblies correspond to the second light outlet holes in a one-to-one mode, each light splitting assembly comprises a semi-transparent and semi-reflective mirror body arranged in the cavity, and the semi-transparent and semi-reflective mirror bodies are used for allowing light beams entering from the light inlet hole to penetrate through; and reflecting the light beam to the second light outlet hole.

Description

Technical Field

[0001] The utility model relates to the technical field of optical systems, in particular to a multi-path light splitting device. Background Art

[0002] When evaluating the performance of complex optical systems, detailed analysis of the individual wavelength components within a full-color or wide-spectral beam is often required. These beams may originate from halogen lamps, broadband LED sources, or fluorescence generated by laser excitation of specific substances. This type of analysis is crucial for understanding the dispersion characteristics, spectral purity, and energy distribution of the beam.

[0003] Currently, a common approach for performing this type of analysis is to use optical filter components, such as interference filters, bandpass filters, or neutral density filters, to selectively transmit or reflect specific wavelengths of light. A limitation of this approach is that each time a different wavelength of light needs to be analyzed, technicians must manually replace the filter components to accommodate the change in desired wavelength. This step is not only cumbersome but also significantly reduces analytical efficiency, as replacing filter components takes time and can introduce additional error sources, such as inaccurate filter positioning or optical alignment issues.

[0004] More importantly, current methods cannot simultaneously analyze multiple wavelength components because only one filter assembly can be used at a time. This limits a comprehensive understanding of the overall spectral characteristics of a beam, particularly when it is necessary to quickly and accurately capture changes at multiple wavelengths, such as in dynamic spectral analysis or real-time monitoring of light source stability. Therefore, the industry urgently needs a technology that can simultaneously analyze the different wavelength components of a full-color or wide-spectrum beam to improve analysis efficiency and broaden its application range. Utility Model Content

[0005] In view of this, the present invention proposes a multi-path light splitting device, the purpose of which is to solve, at least to a certain extent, the current problem of being unable to simultaneously analyze light of different wavelengths in a light beam.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A multi-channel light splitting device, comprising:

[0008] A housing, wherein a cavity is provided within the housing, and a light inlet, a first light outlet, and a second light outlet are provided on the housing, wherein the light inlet, the first light outlet, and the second light outlet are all connected to the cavity, the light inlet and the first light outlet are coaxially arranged, the central axis of the second light outlet is arranged at a certain angle to the central axis of the light inlet, and a plurality of second light outlets are provided, and the plurality of second light outlets are arranged at intervals;

[0009] Multiple splitter components are arranged between the light inlet and the first light outlet, and the splitter components correspond one-to-one to the second light outlet. The splitter components include a semi-transparent and semi-reflective mirror body arranged in the cavity, and the semi-transparent and semi-reflective mirror body is used to allow the light beam entering from the light inlet to pass through, and to reflect the light beam to the second light outlet.

[0010] As a further optional solution, the light splitting assembly further includes a mirror holder, three adjustment screws and an elastic member;

[0011] The semi-transparent and semi-reflective mirror body is arranged on the mirror base, and the mirror base is arranged in the cavity, and a side surface of the mirror base close to the inner wall of the cavity is defined as a supporting surface;

[0012] The adjusting screw is threadedly connected to the housing, one end of the adjusting screw is located outside the housing, and the other end penetrates into the cavity and abuts against the support surface of the mirror holder; the three adjusting screws are respectively defined as a first adjusting screw, a second adjusting screw, and a third adjusting screw, and the line connecting the first adjusting screw and the second adjusting screw and the line connecting the first adjusting screw and the third adjusting screw are arranged vertically;

[0013] The elastic member is used to apply an elastic force to the mirror base close to the inner wall of the cavity, so that the supporting surface of the mirror base remains in contact with the adjusting screw.

[0014] As a further optional solution, the first adjusting screw and the second adjusting screw are spaced apart in the vertical direction, and the first adjusting screw and the third adjusting screw are spaced apart in the horizontal direction.

[0015] As a further optional solution, the elastic member includes two tension springs, one end of the tension spring is connected to the shell, and the other end of the tension spring is connected to the mirror base; the two tension springs are respectively defined as a first tension spring and a second tension spring, the first tension spring is arranged between the first adjusting screw and the second adjusting screw, and the second tension spring is arranged between the first adjusting screw and the third adjusting screw.

[0016] As a further optional solution, a hemispherical abutment portion is formed on the end of the adjusting screw.

[0017] As a further optional solution, the mirror seat is provided with an embedding groove for embedding the semi-transparent and semi-reflective mirror body, and the bottom of the embedding groove is provided with a penetrating light hole, and the light hole is axially corresponding to the light inlet hole; the side wall of the embedding groove is provided with a fixing hole, and a tightening screw is threadedly connected to the fixing hole.

[0018] As a further optional solution, the angle between the central axis of the light inlet and the central axis of the second light outlet is 90°.

[0019] As a further optional solution, the shell includes a shell base and a shell cover, the shell base is generally in the shape of a cube, the cavity is formed on the shell base, the cavity is open at the top of the shell base, and the shell cover is arranged on the top of the shell base to close the cavity; the light inlet, the first light outlet and the second light outlet are all arranged on the shell base.

[0020] As a further optional solution, a mounting plate extending horizontally is provided at the lower portion of the housing base, and a mounting hole is provided on the mounting plate.

[0021] As a further optional solution, a beam attenuation module is provided on the first light exit hole and / or the second light exit hole, and the beam attenuation module includes a frame and an insert slidably provided on the frame, and the frame is provided on the housing;

[0022] Alternatively, a spectrum filtering module is provided on the first light exit hole and / or the second light exit hole.

[0023] Compared with the prior art, the multi-channel optical splitting device of the present application has at least the following beneficial effects:

[0024] This multi-path splitting device can effectively split full-color light or a wide-spectrum light beam into multiple independent light paths, each of which can be precisely wavelength-selected through a specific filter. This design enables researchers to analyze multiple wavelengths of light simultaneously, greatly improving analysis efficiency and accuracy. In particular, when conducting light absorption experiments, the device can clearly reveal which spectra of full-color light are absorbed or significantly attenuated after passing through a specific object. This allows for in-depth analysis of the properties of a substance, such as accurately identifying different types of fluids, by utilizing the principles of light absorption and detection.

[0025] The housing of this multi-channel splitter adopts a sealed design, which provides a unique advantage when processing weak fluorescence. In this sealed environment, the fluorescence signal can be effectively captured and analyzed without interference from external ambient light.

[0026] This spectroscopic device not only improves the efficiency and accuracy of spectral analysis, but also expands its application scenarios. Its advantages are particularly obvious when it is necessary to simultaneously analyze multiple wavelengths of light or process weak fluorescence signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic structural diagram of a multi-channel light splitting device according to an embodiment of the present invention;

[0029] Figure 2 is a structural diagram of the light splitting component;

[0030] Figure 3 A schematic diagram of the position distribution of three adjustment screws on the light splitting component;

[0031] Figure 4 is a structural schematic diagram of the mirror base;

[0032] Figure 5 This is a schematic structural diagram of a multi-channel light splitting device according to another embodiment of the present invention;

[0033] Figure 6 for Figure 5 Explosion diagram of the multi-channel splitting device;

[0034] Figure 7 for Figure 5 Schematic diagram of the application of the multi-channel splitting device.

[0035] In the figure: 1, housing; 1a, housing base; 1b, housing cover; 11, cavity; 12, light inlet; 13, first light outlet; 14, second light outlet; 15, mounting plate; 16, mounting hole;

[0036] 2. Beam splitter assembly; 21. Mirror mount; 22. Adjustment screws; 22a. First adjustment screw; 22b. Second adjustment screw; 22c. Third adjustment screw; 23. Tension spring; 23a. First tension spring; 23b. Second tension spring;

[0037] 3. Beam attenuation module; 31. Mirror frame; 32. Insert;

[0038] 100. Fiber optic assembly; 200. Visible sleeve; 300. Beam profiler. DETAILED DESCRIPTION

[0039] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] refer to Figure 1-4 , an embodiment of the present utility model shows a multi-way light splitting device, comprising a housing 1 and a plurality of light splitting components 2 arranged on the housing 1;

[0043] A cavity 11 is provided in the housing 1. A light inlet 12, a first light outlet 13, and a second light outlet 14 are provided on the housing 1. The light inlet 12, the first light outlet 13, and the second light outlet 14 are all in communication with the cavity 11. The light inlet 12 and the first light outlet 13 are coaxially arranged. The central axis of the second light outlet 14 is arranged at a certain angle to the central axis of the light inlet 12. A plurality of second light outlets 14 are provided, and the plurality of second light outlets 14 are arranged at intervals.

[0044] A plurality of light splitting components 2 are arranged between the light inlet 12 and the first light outlet 13, and the light splitting components 2 correspond one-to-one to the second light outlet 14. The light splitting components 2 include a semi-transparent and semi-reflective mirror body (not shown) arranged in the cavity 11, and the semi-transparent and semi-reflective mirror body is used for allowing the light beam entering from the light inlet 12 to pass through, and reflecting the light beam to the second light outlet 14.

[0045] Among them, such as Figure 1 and Figure 7 As shown, when the multi-way light splitting device is used, an optical fiber component 100 can be set at the light inlet 12, and the optical fiber component 100 emits a light beam, which enters the cavity 11 and is emitted to the first light outlet 13; on the way, the light beam will pass through multiple light splitting components 2 in sequence, and the semi-transparent and semi-reflective mirrors on the light splitting components 2 can split the light beam into branches and emit them towards the second light outlet 14; each light splitting component 2 can split one path of light; in this way, the first light outlet 13 and the multiple second light outlets 14 respectively output one path of light; thereafter, each path of light can be filtered, attenuated, etc. to obtain light of different wavelengths, and then analyzed simultaneously; as shown in FIG. Figure 7 As shown, a beam profiler 300 can be set in the output direction of the first light exit hole 13 and the second light exit hole 14 .

[0046] It should be noted that the term "translucent mirror" refers to a mirror that can simultaneously transmit and reflect light. The transmittance and reflectance can be determined based on actual conditions and does not specify a mirror that is 50% translucent and 50% reflective. The operating principles of translucent and reflective mirrors are known in the art and will not be elaborated on here.

[0047] In some embodiments, as Figure 2 and Figure 3 As shown, the light-splitting component 2 also includes a mirror base 21, three adjusting screws 22 and an elastic member; the semi-transparent and semi-reflective mirror body is arranged on the mirror base 21, and the mirror base 21 is arranged in the cavity 11, and a side surface of the mirror base 21 close to the inner wall of the cavity 11 is defined as a supporting surface; the adjusting screw 22 is threadedly connected to the shell 1, one end of the adjusting screw 22 is located outside the shell 1, and the other end penetrates into the cavity 11 and abuts against the supporting surface of the mirror base 21; the three adjusting screws 22 are respectively defined as a first adjusting screw 22a, a second adjusting screw 22b and a third adjusting screw 22c, and the connecting line between the first adjusting screw 22a and the second adjusting screw 22b and the connecting line between the first adjusting screw 22a and the third adjusting screw 22c are vertically arranged; the elastic member is used to apply an elastic force to the mirror base 21 close to the inner wall of the cavity 11, so that the supporting surface of the mirror base 21 remains in contact with the adjusting screw 22.

[0048] Among them, such as Figure 3 As shown, the elastic member maintains the contact between the mirror base 21 and the three adjusting screws 22. When the second adjusting screw 22b is rotated, the second adjusting screw 22b moves axially, so that the mirror base 21 can be flipped around the line connecting the first adjusting screw 22a and the third adjusting screw 22c. Similarly, when the third adjusting screw 22c is rotated, the mirror base 21 can be flipped around the line connecting the first adjusting screw 22a and the second adjusting screw 22b.

[0049] In this embodiment, the first adjustment screw 22a and the second adjustment screw 22b are spaced apart in the vertical direction, while the first adjustment screw 22a and the third adjustment screw 22c are spaced apart in the horizontal direction. Therefore, turning the second adjustment screw 22b causes the mirror base 21 to flip about a horizontal axis, while turning the third adjustment screw 22c causes the mirror base 21 to flip about a vertical axis. This allows the transflective and reflective mirror bodies to be adjusted in both their light transmission and reflection directions.

[0050] Specifically, the elastic member includes two tension springs 23, one end of each of which is connected to the housing 1, and the other end of each of which is connected to the mirror base 21. The two tension springs 23 are defined as a first tension spring 23a and a second tension spring 23b, respectively. The first tension spring 23a is disposed between the first and second adjustment screws 22a, 22b, and the second tension spring 23b is disposed between the first and third adjustment screws 22c. Thus, the two tension springs 23 ensure that the mirror base 21 and the three adjustment screws 22 are in contact with each other regardless of the adjustment of the three adjustment screws 22.

[0051] Specifically, in order to make the adjusting screw 22 and the mirror base 21 contact well, refer to Figure 2 The end of the adjusting screw 22 is formed with a hemispherical abutment portion (not marked in the figure). For example, the adjusting screw 22 can be a ball screw, which facilitates the support surface of the lens holder 21 to flip around the abutment position of the end of the adjusting screw 22.

[0052] Specifically, in order to facilitate the fixing of the semi-transparent and semi-reflective mirror body, Figure 4 As shown, the mirror base 21 is provided with a groove for inserting the semi-transparent and semi-reflective mirror body. A light hole is formed at the bottom of the groove, and the light hole is axially aligned with the light inlet hole 12. A fixing hole is formed on the side wall of the groove, and a set screw (not shown) is threadedly connected to the fixing hole. In this way, by rotating the set screw, the end of the set screw abuts against the semi-transparent and semi-reflective mirror body, thereby fixing the semi-transparent and semi-reflective mirror body in the groove.

[0053] Specifically, the light transmission direction and the light reflection direction of the semi-transparent and semi-reflective mirror body form an angle of 90°. Correspondingly, the angle between the central axis of the light inlet 12 and the central axis of the second light outlet 14 is 90°.

[0054] Specifically, the above scheme comprises a shell base 1a and a shell cover 1b. The shell base 1a is in a square shape as a whole. The cavity 11 is formed on the shell base 1a. The cavity 11 is open at the top of the shell base 1a. The shell cover 1b is arranged on the top of the shell base 1a to close the cavity 11. The light inlet 12, the first light outlet 13 and the second light outlet 14 are all arranged on the shell base 1a. The shell cover 1b can protect the light path in the cavity 11 to prevent the outside world from affecting the light splitting component 2 and also prevent the light beam from leaking to the outside. In addition, in order to facilitate the fixation of the light path splitting device, as shown in FIG. Figure 1 As shown, the lower portion of the housing 1a is provided with a mounting plate 15 extending horizontally, and the mounting plate 15 is provided with mounting holes 16. Conventionally, this optical path subassembly device can be applied to an optical breadboard, a commonly used layout platform for optical systems. The mounting holes 16 can correspond to the holes on the optical breadboard and then be fixed with bolts.

[0055] In some embodiments, as Figure 5 and Figure 6 As shown, a beam attenuation module 3 is provided on the first light exit hole 13 and / or the second light exit hole 14. The beam attenuation module 3 includes a frame 31 and a plug 32 slidably mounted on the frame 31. The frame 31 is mounted on the housing 1. A variety of filters of different specifications (not shown) are mounted on the plug 32. By sliding the plug 32, a suitable filter can be quickly selected. The plug 32 can also be pulled out to disable the filtering effect of the beam attenuation module 3, allowing the light beam to pass directly. The beam attenuation module 3 can refer to the prior art CN219266626U.

[0056] In one specific application, such as Figure 7 As shown, a visual sleeve 200 can be connected to the beam attenuation module 3. The visual sleeve 200 can extend the optical path, and a filter, an attenuation lens, etc. can also be installed inside the visual sleeve 200. The visual sleeve 200 can refer to the prior art CN219016667U. The visual sleeve 200 can then be connected to a beam profiler 300.

[0057] In some embodiments, a spectral filtering module may be provided on the first light exit hole and / or the second light exit hole, rather than the aforementioned beam attenuation module 3 with quickly replaceable optical filters. Simply put, the spectral filtering module is a lens that uses different optical coatings to filter light within a narrow wavelength range, such as a filter, bandpass filter, or narrowband filter.

[0058] In addition, the housing 1 may be provided with holes for connecting cage rods so that the multi-way light splitting device can be applied to a cage optical system, such as Figure 1 As shown, four connecting holes (not marked in the figure) are provided around the light inlet 12, and the four connecting holes are used to connect four cage rods of the cage optical system.

[0059] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-channel light splitting device, characterized in that: include: A housing, wherein a cavity is provided within the housing, and a light inlet, a first light outlet, and a second light outlet are provided on the housing, wherein the light inlet, the first light outlet, and the second light outlet are all connected to the cavity, the light inlet and the first light outlet are coaxially arranged, the central axis of the second light outlet is arranged at a certain angle to the central axis of the light inlet, and a plurality of second light outlets are provided, and the plurality of second light outlets are arranged at intervals; Multiple splitter components are arranged between the light inlet and the first light outlet, and the splitter components correspond one-to-one to the second light outlet. The splitter components include a semi-transparent and semi-reflective mirror body arranged in the cavity, and the semi-transparent and semi-reflective mirror body is used to allow the light beam entering from the light inlet to pass through, and to reflect the light beam to the second light outlet.

2. The multi-path optical splitting device according to claim 1, wherein: The light splitting assembly also includes a mirror base, three adjustment screws and an elastic member; The semi-transparent and semi-reflective mirror body is arranged on the mirror base, and the mirror base is arranged in the cavity, and a side surface of the mirror base close to the inner wall of the cavity is defined as a supporting surface; The adjusting screw is threadedly connected to the housing, one end of the adjusting screw is located outside the housing, and the other end penetrates into the cavity and abuts against the support surface of the mirror holder; the three adjusting screws are respectively defined as a first adjusting screw, a second adjusting screw, and a third adjusting screw, and the line connecting the first adjusting screw and the second adjusting screw and the line connecting the first adjusting screw and the third adjusting screw are arranged vertically; The elastic member is used to apply an elastic force to the mirror base close to the inner wall of the cavity, so that the supporting surface of the mirror base remains in contact with the adjusting screw.

3. The multi-path optical splitting device according to claim 2, wherein: The first adjusting screw and the second adjusting screw are spaced apart in the vertical direction, and the first adjusting screw and the third adjusting screw are spaced apart in the horizontal direction.

4. The multi-path optical splitting device according to claim 2, wherein: The elastic member includes two tension springs, one end of the tension spring is connected to the shell, and the other end of the tension spring is connected to the mirror base; the two tension springs are respectively defined as a first tension spring and a second tension spring, the first tension spring is arranged between the first adjusting screw and the second adjusting screw, and the second tension spring is arranged between the first adjusting screw and the third adjusting screw.

5. The multi-path optical splitting device according to claim 2, wherein: A hemispherical abutment portion is formed at the end of the adjusting screw.

6. The multi-path optical splitting device according to claim 2, wherein: The mirror seat is provided with an embedding groove for embedding the semi-transparent and semi-reflective mirror body, and the bottom of the embedding groove is provided with a penetrating light hole, and the light hole is axially corresponding to the light inlet hole; the side wall of the embedding groove is provided with a fixing hole, and a set screw is threadedly connected to the fixing hole.

7. The multi-path optical splitting device according to claim 1, wherein: The angle between the central axis of the light inlet and the central axis of the second light outlet is 90°.

8. The multi-path optical splitting device according to claim 1, wherein: The shell includes a shell base and a shell cover. The shell base is generally in the shape of a cube. The cavity is formed on the shell base. The cavity is open at the top of the shell base. The shell cover is arranged on the top of the shell base to close the cavity. The light inlet, the first light outlet and the second light outlet are all arranged on the shell base.

9. The multi-path optical splitting device according to claim 8, characterized in that: A mounting plate extending in a horizontal direction is provided at the lower portion of the housing seat, and a mounting hole is provided on the mounting plate.

10. The multi-path optical splitting device according to any one of claims 1 to 9, characterized in that: A beam attenuation module is provided on the first light exit hole and / or the second light exit hole, the beam attenuation module comprises a frame and an insert slidably provided on the frame, the frame being provided on the housing; Alternatively, a spectrum filtering module is provided on the first light exit hole and / or the second light exit hole.

Images