Light splitting box, lens two-dimensional adjusting mounting seat and lens assembly adjusting device

Abstract

The embodiment of the utility model provides a light splitting box, a lens two-dimensional adjusting mounting seat and a lens assembly adjusting device, which are used for realizing the convenience of building a light path. The light splitting box comprises a first base and at least two light channels arranged on the first base, each light channel comprises a dichroscope assembly, a band-pass assembly and a photoelectric detection assembly, and the dichroscope assembly and the band-pass assembly in each light channel can be independently and detachably arranged on the first base. And after the optical signal transmits through the dichroscope assembly of the first optical channel in the at least two optical channels, the optical signal in the second optical channel is formed.

Description

Technical Field

[0001] The present application relates to the technical field of optical devices, and in particular to a spectrometer box, a two-dimensional lens adjustment mounting seat, and a lens assembly adjustment device. Background Art

[0002] In the prior art, when collecting optical signals, it is necessary to build an optical path for collecting the optical signals. During the process of building the optical path, it is generally necessary to repeatedly adjust the positions of optical components in the optical path, which results in low efficiency in building the optical path.

[0003] In addition, in the process of collecting optical signals, the prior art generally adopts Figure 1 The reflective optical path shown is used to collect optical signals. When the first optical component of this optical path collection device deflects to the left or right by X°, the reflected signal will deviate by 2X°, thereby causing a problem of large optical signal deviation. Utility Model Content

[0004] The embodiment of the present application provides a spectrometer box, a two-dimensional lens adjustment mount, and a lens assembly adjustment device, which are used to facilitate the construction of an optical path. The spectrometer box in the embodiment of the present application can also reduce the optical signal deviation caused by the deflection of the optical component position in the optical path.

[0005] A first aspect of an embodiment of the present application provides a light splitting box, comprising:

[0006] A first base and at least two optical channels arranged on the first base, the optical channel includes a dichroic mirror assembly, a bandpass assembly and a photoelectric detection assembly, the dichroic mirror assembly and the bandpass assembly in the optical channel can be independently detached and arranged on the first base, and the optical signal forms an optical signal in the second optical channel after transmitting through the dichroic mirror assembly of the first optical channel of the at least two optical channels.

[0007] Preferably, the first optical channel includes an integrally arranged dichroic mirror assembly and a bandpass assembly, and the second optical channel includes an integrally arranged dichroic mirror assembly and a bandpass assembly, wherein the integrally arranged dichroic mirror assembly and the bandpass assembly in the first optical channel can be independently detached and arranged on the first base relative to the integrally arranged dichroic mirror assembly and the bandpass assembly in the second optical channel.

[0008] Preferably, the first optical channel comprises a dichroic mirror assembly and a bandpass assembly which are independently arranged and are detachably arranged on the first base;

[0009] The second optical channel includes a dichroic mirror component and a bandpass component which are independently arranged and are detachably arranged on the first base.

[0010] Preferably, the photoelectric detection component includes at least one of a photodiode, a photomultiplier diode and an avalanche photodiode;

[0011] The photoelectric detection assembly in the first optical channel can be independently detachably arranged on the first base relative to the photoelectric probe assembly in the second optical channel.

[0012] Preferably, a first side plate and a second side plate are mounted on the first base, the first base, the first side plate and the second side plate form a mounting cavity, at least two pluggable dichroic mirror assemblies are arranged in the mounting cavity, the dichroic mirror assembly comprises a dichroic mirror bracket and a dichroic mirror, the dichroic mirror bracket comprises a handle, a bracket portion and a clamping portion, the dichroic mirror is clamped on the dichroic mirror bracket by the clamping portion, and the dichroic mirror is pluggably mounted in the corresponding optical channel by the handle;

[0013] Preferably, the dichroic mirror is at 45° to the incident direction of the light signal.

[0014] Preferably, the mounting cavity includes a plurality of sub-mounting cavities, each sub-mounting cavity corresponds to an optical channel, each sub-mounting cavity includes a first positioning surface and a second positioning surface arranged in mutually perpendicular directions, and the bracket portion is provided with a third positioning surface corresponding to the first positioning surface and a fourth positioning surface corresponding to the second positioning surface in two mutually perpendicular directions;

[0015] One of the first positioning surface and the third positioning surface is provided with a positioning groove, and the other is provided with a matching positioning portion, one of the second positioning surface and the fourth positioning surface is provided with a positioning groove, and the other is provided with a matching positioning portion, and the dichroic mirror bracket is clamped in the sub-mounting cavity through the positioning surface of the sub-mounting cavity.

[0016] Preferably, the first positioning surface is vertically arranged on the first side plate, and the second side plate includes the second positioning surface.

[0017] Preferably, the bandpass assembly includes a bandpass bracket and a bandpass plate, the bandpass plate is arranged in a preset groove of the bandpass bracket, the second side panel is provided with a through hole corresponding to the position of each dichroic mirror, and the bandpass assembly is detachably connected to the second side panel, wherein the position of the bandpass plate in each optical channel corresponds to the through hole of the second side panel, so that the light signal reflected by the dichroic mirror is incident on the bandpass plate through the through hole.

[0018] Preferably, a fixing hole is provided on the edge surface of the second side plate away from the first base, a fixing piece is connected to the bandpass bracket, and the bandpass bracket is fixed to the edge surface of the second side plate through the fixing piece.

[0019] Preferably, the photoelectric detection assembly includes a photodetector mounting seat and a photodetector. The photodetector mounting seat is detachably mounted on a second base along the direction of the light signal reflected by the dichroic mirror in the dichroic mirror assembly. The photodetector mounting seat is provided with a mounting hole corresponding to the position of the dichroic mirror, and the photodetector is detachably connected to the photodetector mounting seat through the mounting hole.

[0020] Preferably, a temperature control device is also provided around the photoelectric detector mounting seat, and the temperature control device is used to control the temperature of the photoelectric detector.

[0021] Preferably, the temperature control device is arranged between the photoelectric detector mounting seat and the second base.

[0022] Preferably, the first base and the second base are arranged on the upper surface of the third base, and a heat dissipation component is arranged on the lower surface of the third base.

[0023] Preferably, the heat dissipation component includes at least one of a heat sink and a fan, and the heat dissipation component is detachably arranged on the lower surface of a temperature control device arranged around a corresponding photoelectric detector mounting seat.

[0024] A second aspect of the embodiment of the present application provides a two-dimensional adjustment mounting seat for a lens, comprising:

[0025] An adjustment assembly, a lens fixing assembly and a first locking member;

[0026] The adjustment assembly comprises an adjustment support block, the adjustment support block is provided with at least three adjustment members that are not on the same straight line, or the adjustment support block is provided with at least two adjustment members and a protrusion, and the at least two adjustment members and the protrusion are not arranged on the same straight line, and the head of the adjustment member is provided with a connecting hole, wherein the adjustment support block is in contact with the lens fixing assembly through the at least three adjustment members, or through the at least two adjustment members and the protrusion;

[0027] The lens fixing assembly is provided with a receiving groove for accommodating an optical lens, and the lens fixing assembly is provided with a first through hole at a position corresponding to the adjusting member. After passing through the first through hole, the first locking member is connected to the connecting hole of the adjusting member to fix the relative position between the adjusting support block and the lens fixing assembly.

[0028] Preferably, the adjusting member comprises a ball-end adjusting screw, and the ball head of the ball-end adjusting screw is provided with an internal threaded hole;

[0029] The first locking member includes a first locking screw, and the first locking screw is threadedly connected with the ball head adjusting screw after passing through the first through hole.

[0030] Preferably, the adjustment support block includes an L-shaped adjustment support block, and the three adjustment members are arranged at the three vertices of the L-shaped adjustment support block, or, the two adjustment members are arranged at the two vertices along the diagonal of the L-shaped adjustment support block, and a hemispherical protrusion is arranged at the third vertex of the L-shaped adjustment support block.

[0031] Preferably, the adjustment support block is provided with an adjustment hole, and the adjustment member is arranged on the adjustment support block through the adjustment hole;

[0032] The adjustment hole is arranged in an opening shape, and the adjustment support block is also provided with fixing holes penetrating through both sides of the opening. A second locking member is arranged in the fixing hole, and the second locking member is used to fix the relative position of the adjustment member with respect to the adjustment hole.

[0033] Preferably, the two-dimensionally adjustable lens mounting seat further comprises an elastic member, wherein the elastic member is connected to the adjusting assembly and the lens fixing assembly, and the elastic member is used to maintain the relative position of the lens fixing assembly with respect to the adjusting assembly.

[0034] Preferably, the elastic member comprises a tension spring, and the adjustment support block is provided with second through holes for fixing the tension spring at two vertices along the diagonal respectively, and a first fixing support is provided in the second through hole, and one end of the tension spring is sleeved on the first fixing support;

[0035] The lens fixing assembly is also provided with a third through hole at a position corresponding to the second through hole, a second fixing support post is provided in the third through hole, and the other end of the tension spring is sleeved on the second fixing support post.

[0036] A third aspect of the embodiments of the present application provides a lens assembly adjustment device, characterized in that it includes:

[0037] A base and a lens barrel seat arranged on the base, wherein the lens barrel seat is penetrated by a mounting hole, an inner lens barrel is mounted in the mounting hole, and a lens assembly is installed in the inner lens barrel;

[0038] The lens barrel seat is adjustable in a first direction relative to the base, the inner lens barrel is adjustable in a second direction relative to the lens barrel seat, and the first direction and the second direction are perpendicular to each other.

[0039] Preferably, the lens assembly adjustment device further comprises an adjustment screw and a first locking screw;

[0040] One of the base and the lens barrel seat is provided with the adjusting screw, the adjusting screw abuts against the other, and when the adjusting screw is adjusted, the relative position between the lens barrel seat and the base is changed in the first direction;

[0041] One of the base and the lens barrel seat is provided with the first locking screw, and the first locking screw abuts against the other one. When the first locking screw is locked, the relative position between the lens barrel seat and the base is fixed in the first direction.

[0042] Preferably, a focus adjustment nut is rotatably provided at the end of the lens barrel seat, the focus adjustment nut is threadedly connected to the inner lens barrel, and the inner lens barrel is axially slidably provided relative to the lens barrel seat, and is axially fixedly provided relative to the lens barrel seat;

[0043] When the focus adjustment nut is rotated, the inner lens barrel is adjusted along the second direction relative to the lens barrel seat.

[0044] Preferably, a second locking screw is provided on the side wall of the focus adjustment nut, and the inner end of the second locking screw abuts against the lens barrel seat, and when the second locking screw is fixed, it is used to fix the position of the focus adjustment nut relative to the inner lens barrel.

[0045] Preferably, the lens assembly adjustment device further comprises an elastic member, one end of which is connected to the inner lens barrel, and the other end of which is connected to the lens barrel seat, so as to maintain the relative position between the inner lens barrel and the lens barrel seat.

[0046] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0047] An embodiment of the present application provides a spectrometer box, comprising: a first base and at least two optical channels arranged on the first base, the optical channel comprising a dichroic mirror assembly, a bandpass assembly and a photoelectric detection assembly, the dichroic mirror assembly and the bandpass assembly in the optical channel can be independently detached and arranged on the first base, and the optical signal forms an optical signal in the second optical channel after transmitting through the dichroic mirror assembly of the first optical channel of the at least two optical channels.

[0048] Because the dichroic mirror assembly and the bandpass assembly in the optical channel in the embodiment of the present application can be independently detached and set on the first base, the convenience of building the optical path is achieved, and the embodiment of the present application adopts a transmissive optical path to collect optical signals. Compared with the optical path in the prior art that uses a reflective optical path to collect optical signals, it avoids the problem of large optical signal deviation caused by the deflection of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a schematic diagram of a reflective optical path in the prior art;

[0050] Figure 2 This is a schematic diagram of an embodiment of a light splitting box in an embodiment of the present application;

[0051] Figure 3 A schematic diagram of an embodiment of the mechanical structure of the light splitting box in the embodiment of the present application;

[0052] Figure 4 A schematic diagram of an embodiment of a bandpass component and a photoelectric detection component in an embodiment of the present application;

[0053] Figure 5 This is a schematic diagram of an embodiment of a two-dimensional adjustment mounting seat for lenses in an embodiment of the present application;

[0054] Figure 6 It is a schematic diagram of an embodiment of the lens assembly adjustment device in the embodiment of the present application. DETAILED DESCRIPTION

[0055] The embodiment of the present application provides a spectrometer box, a two-dimensional lens adjustment mount, and a lens assembly adjustment device, which are used to facilitate the construction of an optical path. The spectrometer box in the embodiment of the present application can also reduce the optical signal deviation caused by the deflection of the optical component position in the optical path.

[0056] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0057] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] For ease of understanding, the following describes the light splitting box in the embodiment of the present application. Figure 2 , an embodiment of the light splitting box in the embodiment of the present application includes:

[0059] Specifically, the spectrometer box in the embodiment of the present application includes a first base and at least two optical channels 10 and 20, wherein the optical channels include a dichroic mirror assembly, a bandpass assembly and a photoelectric detection assembly, wherein the first optical channel 10 of the at least two optical channels includes a dichroic mirror assembly 101, a bandpass assembly 102 and a photoelectric detection assembly 103, and the second optical channel 20 includes a dichroic mirror assembly 201, a bandpass assembly 202 and a photoelectric detection assembly 203, wherein the dichroic mirror assembly 101 and the bandpass assembly 102 of the first optical channel 10 can be independently detached and arranged on the first base relative to the dichroic mirror assembly 201 and the bandpass assembly 202 of the second optical channel 20, and the optical signal forms an optical signal in the second optical channel 20 after transmitting through the dichroic mirror assembly 101 of the first optical channel 10.

[0060] Regarding the positional relationship of the dichroic mirror assembly 101 and the bandpass assembly 102 of the first optical channel 10 relative to the independently detachable dichroic mirror assembly 201 and the bandpass assembly 202 of the second optical channel 20, there can be at least two different embodiments:

[0061] As an optional embodiment, the dichroic mirror assembly 101 and the bandpass assembly 102 in the first optical channel 10 can be configured as an integrated type, and the dichroic mirror assembly 201 and the bandpass assembly 202 in the second optical channel 20 can also be configured as an integrated type, wherein the dichroic mirror assembly 101 and the bandpass assembly 102 configured as an integrated type in the first optical channel 10 can be independently disassembled and arranged on the first base relative to the dichroic mirror assembly 201 and the bandpass assembly 202 configured as an integrated type in the second optical channel 20, that is, during disassembly and installation, the dichroic mirror assembly 101 and the bandpass assembly 102 are disassembled or installed simultaneously relative to the dichroic mirror assembly 201 and the bandpass assembly 202.

[0062] As another optional embodiment, the first optical channel 10 includes independently arranged dichroic mirror assembly 101 and bandpass assembly 102, and the dichroic mirror assembly 101 and the bandpass assembly 102 are respectively detachably arranged on the first base, and the second optical channel 20 also includes independently arranged dichroic mirror assembly 201 and bandpass assembly 202, and the dichroic mirror assembly 101 and the bandpass assembly 102 are also respectively detachably arranged on the first base, that is, during disassembly and installation, the dichroic mirror assembly 101 in the first optical channel is independently detachable relative to the dichroic mirror assembly 201 and the bandpass assembly 202 in the second optical channel 20, and the bandpass assembly 102 in the first optical channel is also independently detachable relative to the dichroic mirror assembly 201 and the bandpass assembly 202 in the second optical channel 20.

[0063] In the above two embodiments, the dichroic mirror component and the bandpass component in a single optical channel are respectively configured as an integrated type or an independent type, thereby improving the flexibility in laying out the optical path and making the intervals between adjacent optical paths adjustable, thereby improving the convenience in building the optical path.

[0064] As an optional embodiment, the photoelectric detection component 103 in the first optical channel 10 in the embodiment of the present application can be independently detachable relative to the photoelectric detection component 203 in the second optical channel 20, or can be detachable in combination. There is no specific limitation on the connection relationship between the photoelectric detection component 103 in the first optical channel and the photoelectric detection component 203 in the second optical channel. Specifically, the photoelectric detection component in the embodiment of the present application may include at least one of a photodiode, a photomultiplier diode and an avalanche photodiode, and there is no specific limitation on the type of photodetector.

[0065] The spectrometer in the embodiment of the present application integrates at least two optical channels on the same base, thereby improving the compactness of the optical path structure, and the dichroic mirror assembly 101 and the bandpass assembly 102 in the first optical channel 10 can be independently detached and arranged on the first base relative to the dichroic mirror assembly 201 and the bandpass assembly 202 in the second optical channel 20, so that the spacing between adjacent optical channels can be adjusted, thereby improving the flexibility of the optical path structure, and the optical signal forms the optical signal in the second optical channel 20 after transmitting through the dichroic mirror assembly 101 of the first optical channel 10, that is, when measuring the optical signals of adjacent optical channels, the embodiment of the present application adopts a transmission-type optical path structure, rather than the conventional optical path structure. Figure 1 The reflective optical path structure shown avoids large signal deviation caused by positional deflection of adjacent dichroic mirror components.

[0066] If we use Figure 2 When the transmission-type optical path shown collects optical signals, if the dichroic mirror in the first optical channel is deflected clockwise by A1°, then the optical signal collected in the second optical channel is also deflected clockwise by A1°. When the reflection-type optical path in the prior art collects optical signals, if the dichroic mirror in the first optical channel is deflected clockwise by A1°, then the reflected optical signal in the first optical channel is deflected clockwise by A2°, that is, the optical signal received by the second optical channel is deflected clockwise by A2° (where A2°=2A1°). Therefore, the transmission-type optical path structure adopted in the present application reduces the optical signal deviation caused by the deflection of the dichroic mirror compared to the reflection-type optical path structure in the prior art.

[0067] Therefore, the spectrometer in the embodiment of the present application improves the compactness and flexibility of the optical path structure on the one hand, and reduces the signal deviation caused by the deflection of the dichroic mirror component on the other hand.

[0068] based on Figure 2 In order to achieve the fixation and connection between the components in the optical channel, the mechanical structure of the light splitting box is described below. Figure 3 :

[0069] Specifically, the light splitting box includes a first base 30, a first side plate 40 and a second side plate 50, wherein the first base 30, the first side plate 40 and the second side plate 50 form an installation cavity, and at least two pluggable dichroic mirror assemblies 101 (such as in Figure 2 In the embodiment, a dichroic mirror assembly 101 is installed in the first optical channel, and a dichroic mirror assembly 201 is installed in the second optical channel. The dichroic mirror assembly 101 includes a dichroic mirror bracket 1011 and a dichroic mirror 1012. The dichroic mirror bracket 1011 includes a handle 10111, a bracket body 10112 and a clamping portion 10113, wherein the dichroic mirror is at 45° to the incident direction of the optical signal and is clamped on the dichroic mirror bracket 1011 by the clamping portion 10113. The dichroic mirror 1012 can be plugged and fixed in the corresponding optical channel by means of the handle 10111.

[0070] Among them, when the dichroic mirror assembly is at 45° to the incident direction of the optical signal, the direction of the reflected light of the optical signal is just perpendicular to the direction of the incident light, thereby improving the neatness of the optical path structure. Compared with the non-vertical structure, the vertical structure shortens the distance between the dichroic mirror assembly and the bandpass assembly and the photoelectric detection assembly, which saves the space occupied by the optical path structure and further improves the compactness of the optical path structure.

[0071] Further, in order to realize the convenience of pluggable connection of the dichroic mirror assembly 101 in the optical channel, the mounting cavity can also be set as a plurality of sub-mounting cavities, each sub-mounting cavity corresponds to an optical channel, each sub-mounting cavity includes a first positioning surface 60 and a second positioning surface 70 arranged in mutually perpendicular directions, and the bracket body 10112 is provided with a third positioning surface 101121 corresponding to the first positioning surface 60 and a fourth positioning surface 101122 corresponding to the second positioning surface 70 in two mutually perpendicular directions;

[0072] One of the first positioning surface 60 and the third positioning surface 101121 is provided with a positioning groove, and the other is provided with a matching positioning portion; one of the second positioning surface 70 and the fourth positioning surface 101122 is provided with a positioning groove, and the other is provided with a positioning portion;

[0073] When the dichroic mirror bracket 1011 is installed in the sub-mounting cavity, the bracket body 10112 is clamped in the positioning surface of the sub-mounting cavity.

[0074] Further, in the embodiment of the present application, the first positioning surface 60 is vertically disposed on the first side plate 40 , and the second side plate 50 includes a second positioning surface 70 .

[0075] Specifically in Figure 3 In the schematic diagram shown, the first positioning surface 60 is a pluggable third side panel perpendicular to the first side panel 40. In actual applications, the first positioning surface 60 can also be a protrusion perpendicular to the first side panel. As long as the bracket body 10112 can be fixed, there is no specific restriction on the form of the first positioning surface.

[0076] Because the dichroic mirror assembly 101 in the embodiment of the present application is clamped in the sub-mounting cavity by the positioning grooves and the positioning portions in the correspondingly arranged positioning surfaces, the convenience of arranging the dichroic mirror assembly in the sub-mounting cavity can be improved.

[0077] based on Figure 2 The embodiment described above, the bandpass component and the photoelectric detection component in the optical channel are described below, please refer to Figure 4 :

[0078] Specifically, the bandpass component 102 includes a bandpass bracket 1021 and a bandpass plate 1022, the bandpass plate 1022 is installed in a preset groove of the bandpass bracket 1021, the second side panel 50 is provided with a through hole corresponding to the position of each dichroic mirror, and the bandpass component 102 is detachably connected to the second side panel 50, wherein the position of the bandpass plate in each optical channel corresponds to the through hole of the second side panel, so that the light signal reflected by the dichroic mirror is incident on the bandpass plate through the through hole.

[0079] Furthermore, in order to facilitate the connection between the bandpass component 102 and the second side plate 50, a fixing hole is provided on the edge surface of the second side plate 50 away from the first base 30, and a fixing piece is connected to the bandpass bracket 1021, and the bandpass bracket 1021 is fixed to the edge surface of the second side plate 50 through the fixing piece.

[0080] Among them, the fixing part connected to the bandpass bracket can be a fixing bolt, a clamping fixing part or a fixing part connected in other ways, and there is no specific restriction on the type of the fixing part and the specific fixing method. The embodiment of the present application fixes the bandpass bracket 1021 to the edge surface of the second side panel 50, thereby improving the convenience of disassembling and adjusting the bandpass bracket 1021.

[0081] Specifically, the photoelectric detection component 103 includes a photoelectric detection component mounting seat 1031 and a photodetector 1032. The photoelectric detection component mounting seat 1031 is detachably mounted on the second base 80 along the direction of the light signal reflected by the dichroic mirror of the optical channel. The photoelectric detection component mounting seat 1031 is provided with a mounting hole corresponding to the position of the dichroic mirror, and the photodetector 1032 is detachably connected to the photoelectric detection component mounting seat 1031 through the mounting hole.

[0082] Among them, the photoelectric detection component mounting seat 1031 in the embodiment of the present application can be integrated together, and then a mounting hole is opened on the mounting seat corresponding to the position of each dichroic mirror, and then the photodetector 1032 is detachably connected to the mounting hole. It can also be that the avalanche photodiode mounting seat is a plurality of discrete mounting seats, wherein each mounting seat has a mounting hole opened at the position corresponding to the dichroic mirror, and then the photodetector 1032 is detachably connected to the mounting hole, wherein different connection forms improve the flexibility of the optical path structure.

[0083] During the operation of the photodetector 1032, in order to ensure the performance of the photodetector 1032, a temperature control device is generally provided around the photodetector 1032 to ensure that the photodetector 1032 operates in an optimal performance region, because temperature changes will affect the noise level of the photodetector. A higher temperature may increase the noise level, thereby reducing the signal-to-noise ratio of the detector.

[0084] In order to better control the temperature of the photodetector 1032 , the embodiment of the present application installs the temperature control device between the photodetection component mounting base 1031 and the second base 80 , so as to directly control the temperature of the photodetector 1032 through the photodetection component mounting base 1031 .

[0085] In order to further reduce the volume of the optical path and improve the integration of the optical path, the embodiment of the present application fixes the first base 30 and the second base 80 together on the upper surface of the third base 90 so as to integrate multiple optical channels on the same base.

[0086] During the operation of the temperature control device, in order to better dissipate the heat of the temperature control device, a heat dissipation component is provided on the lower surface of the third base in the embodiment of the present application. There is no specific restriction on the type and installation position of the heat dissipation component, as long as the temperature control device can be dissipated.

[0087] Furthermore, in order to improve the efficiency of heat dissipation, the embodiment of the present application can detachably install at least one of the heat sink and the fan at the position of the temperature control device on the lower surface of the third base 90, so that the heat in the temperature control device can be quickly transferred to the air. At the same time, the detachable connection method also improves the convenience of later maintenance of the heat sink and the fan.

[0088] The present application also provides a two-dimensional lens adjustment mounting seat, see Figure 5 The lens two-dimensional adjustment mounting seat in the embodiment of the present application includes:

[0089] An adjustment assembly 100, a lens fixing assembly 200 and a first locking member 300;

[0090] The adjustment assembly 100 includes an adjustment support block 1001, on which at least three adjustment members 1002 that are not on the same straight line are arranged, or, on which at least two adjustment members 1002 and a protrusion 1003 are arranged, and the at least two adjustment members 1002 and the protrusion 1003 are not arranged on the same straight line, wherein the adjustment support block 1001 abuts against the lens fixing assembly 200 through the at least three adjustment members 1002, or through the at least two adjustment members 1002 and the protrusion 1003;

[0091] In order to adjust the locking assembly 100 relative to the lens fixing assembly 200 in two mutually perpendicular directions, it is generally necessary to set at least two adjustment members 1002 on the diagonal line of the adjustment support block 1001. As for the third adjustment point, it can be a fixed protrusion or an adjustment member. There is no specific restriction on the type of the third adjustment point.

[0092] The lens fixing assembly 200 is provided with a receiving groove for accommodating an optical lens, and the lens fixing assembly 200 is provided with a first through hole at a position corresponding to the adjusting member 1002. After passing through the first through hole, the first locking member 300 is connected to the connecting hole provided at the head of the adjusting member 1002 to fix the relative position between the adjusting support block 1001 and the lens fixing assembly 200.

[0093] It should be noted that when the first locking member 300 is connected to the connecting hole of the adjusting member 1002, it can be a threaded connection or a snap-on connection, as long as the relative position between the adjusting component 100 and the lens fixing component 200 can be fixed. There is no specific restriction on the connection method between the first locking member 300 and the connecting hole of the adjusting member 1002.

[0094] As an optional embodiment, the adjusting member 1002 may include a ball head adjusting screw, and the corresponding first locking member 300 is a locking screw, wherein the ball head of the ball head adjusting screw is provided with an internal threaded hole, and the first locking screw 300 is threadedly connected to the internal threaded hole after passing through the first through hole, thereby ensuring the stability of the relative position between the adjusting component 100 and the lens fixing component 200.

[0095] As an optional embodiment, the adjustment support block 1001 in the embodiment of the present application can be mouth-shaped or L-shaped. In order to save materials, the adjustment support block 1001 is generally set to be L-shaped, and for the convenience of adjustment, two ball head adjustment screws are generally provided at the two vertices along the diagonal of the L-shaped adjustment support block (preferably ball head fine thread adjustment screws, wherein the fine thread is the width of the screw thread, and the finer the screw thread, the finer the adjustment range), and a hemispherical protrusion is provided at the third vertex of the L-shaped adjustment support block, so as to realize the adjustment of the relative position between the adjustment component 100 and the lens fixing component 200 in two directions perpendicular to each other through the two ball head adjustment screws on the diagonal.

[0096] Furthermore, in the process of adjusting the relative position between the lens fixing assembly 200 and the adjustment assembly 100 through the adjustment member 1002, in order to fix the position of the adjustment member 1002 relative to the adjustment assembly 100 after the adjustment is completed, an adjustment hole 400 can also be provided on the adjustment support block, wherein the adjustment member 1002 is provided on the adjustment support block 1001 through the adjustment hole 400, wherein the adjustment hole 400 is provided in an opening shape, and the adjustment support block 1001 is also provided with a fixing hole 500 passing through both sides of the opening, and a second locking screw 600 is provided in the fixing hole 500, and the second locking screw 600 is used to fix the position of the adjustment member 1002 relative to the adjustment hole 400, that is, to fix the position of the adjustment member 1002 relative to the adjustment assembly 100.

[0097] As an optional embodiment, when the relative position between the adjustment component 100 and the lens fixing component 200 is changed by the adjustment member 1002, because the threads of the thread itself have a small gap, in order to maintain the stability of the relative position between the adjustment component 100 and the lens fixing component 200, a first elastic member 700 can also be set in the two-dimensional adjustment lens mounting seat, wherein the first elastic member 700 is connected to the adjustment component 100 and the lens fixing component 200 to maintain the relative position of the lens fixing component 200 relative to the adjustment component 100.

[0098] As a specific connecting structure, the first elastic member 700 can be a tension spring, and the adjustment support block 1001 is respectively provided with second through holes for fixing the tension spring at two vertices along the diagonal, and a first fixed pillar is provided in the second through hole, and one end of the tension spring is sleeved on the first fixed pillar. The lens fixing assembly 200 is provided with a third through hole at a position corresponding to the second through hole, and a second fixed pillar is provided in the third through hole, and the other end of the tension spring is sleeved on the second fixed pillar.

[0099] In this way, when the relative position between the adjusting component 100 and the lens fixing component 200 is changed by the adjusting member 1002 , the stability of the relative position between the adjusting component 100 and the lens fixing component 200 can be maintained by the first elastic member 700 .

[0100] The present application also provides a lens assembly adjustment device. Figure 6 In the embodiment of the present application, the lens assembly adjustment device comprises:

[0101] A base 1 and a lens barrel seat 2 arranged on the base. The lens barrel seat 2 is penetrated with an assembly hole, an inner lens barrel 3 is assembled in the assembly hole, and a lens assembly is installed in the inner lens barrel along the transmission direction of the fluorescent signal.

[0102] Furthermore, the lens barrel seat 2 is adjustable in a first direction relative to the base 1, and the inner lens barrel 3 is adjustable in a second direction relative to the lens barrel seat 2, and the first direction and the second direction are perpendicular to each other.

[0103] As an optional embodiment, when adjusting the relative position of the lens barrel seat 2 and the base 1 in the first direction, an adjusting screw 4 may be provided on one of the base 1 and the lens barrel seat 2, and the adjusting screw abuts against the other, such as providing an adjusting screw 4 on the base 1 and abutting against the lens barrel seat 2, or providing an adjusting screw 4 on the lens barrel seat 2 and abutting against the base, when adjusting the adjusting screw 4, the relative position between the lens barrel seat 2 and the base 1 is changed in the first direction;

[0104] After the relative position between the base 1 and the lens barrel seat 2 is adjusted, in order to avoid the relative position from changing, the relative position between the base 1 and the lens barrel seat 2 can also be fixed.

[0105] As an optional embodiment, a first locking screw 5 can be provided on one of the base 1 and the lens barrel seat 2, and the first locking screw 5 abuts against the other one. When the first locking screw 5 is locked, the relative position between the lens barrel seat 2 and the base 1 can be fixed in the first direction.

[0106] As an optional embodiment, when adjusting the relative position of the inner lens barrel 3 and the lens barrel seat 2 in the second direction, a focus adjustment nut 6 can be rotatably set at the end of the lens barrel seat 2, wherein the focus adjustment nut 6 is threadedly connected to the inner lens barrel 3, and the inner lens barrel 3 is axially slidable relative to the lens barrel seat 2, and is circumferentially fixed relative to the lens barrel seat 2, so that when the focus adjustment nut 6 is rotated, the inner lens barrel 3 is adjusted along the second direction relative to the lens barrel seat 2.

[0107] After the relative position between the inner lens barrel 3 and the lens barrel seat 2 is adjusted, in order to avoid the relative position from changing, the relative position between the inner lens barrel 3 and the lens barrel seat 2 can also be fixed.

[0108] As an optional embodiment, when fixing the relative position between the inner lens barrel 3 and the lens barrel seat 2, a second locking screw 7 can be set on the side wall of the focus adjustment nut 6, wherein the inner end of the second locking screw 7 abuts against the lens barrel seat 2, and when the second locking screw 7 is fixed, it is used to fix the position of the focus adjustment nut 4 relative to the inner lens barrel 3.

[0109] Furthermore, when adjusting the relative position between the inner lens barrel 3 and the lens barrel seat 2, because the focus adjustment nut 4 and the inner lens barrel 3 are threadedly connected, and the threads of the thread themselves have a small gap, in order to maintain the stability of the position of the inner lens barrel 3 relative to the lens barrel seat 2, an elastic member 8 is generally provided between the inner lens barrel 3 and the lens barrel seat 2, wherein one end of the elastic member 8 is connected to the inner lens barrel 3, and the other end of the elastic member 8 is connected to the lens barrel seat 2, so as to maintain the relative position between the inner lens barrel 3 and the lens barrel seat 2.

[0110] Specifically, the second elastic member may be a tension spring, elastic metal, etc., and the type of the second elastic member is not specifically limited here.

[0111] In the embodiment of the present application, the structure of the lens assembly adjustment device is described in detail, and the lens assembly adjustment device in the embodiment of the application can adjust the position of the lens assembly in the inner barrel in a first direction and a second direction that are perpendicular to each other, thereby achieving flexibility and precision in adjusting the position of the lens assembly.

[0112] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A spectrometer box, characterized in that: include: A first base and at least two optical channels arranged on the first base, the optical channel includes a dichroic mirror assembly, a bandpass assembly and a photoelectric detection assembly, the dichroic mirror assembly and the bandpass assembly in the optical channel can be independently detached and arranged on the first base, and the optical signal forms an optical signal in the second optical channel after transmitting through the dichroic mirror assembly of the first optical channel of the at least two optical channels.

2. The spectrometer box according to claim 1, characterized in that: The first optical channel includes an integrally arranged dichroic mirror assembly and a bandpass assembly, and the second optical channel includes an integrally arranged dichroic mirror assembly and a bandpass assembly, wherein the integrally arranged dichroic mirror assembly and the bandpass assembly in the first optical channel can be independently detached and arranged on the first base relative to the integrally arranged dichroic mirror assembly and the bandpass assembly in the second optical channel.

3. The spectrometer box according to claim 1, characterized in that: The first optical channel includes a dichroic mirror assembly and a bandpass assembly which are independently arranged and are detachably arranged on the first base; The second optical channel includes a dichroic mirror component and a bandpass component which are independently arranged and are detachably arranged on the first base.

4. The spectrometer box according to claim 1, characterized in that: The photodetection assembly includes at least one of a photodiode, a photomultiplier diode, and an avalanche photodiode; The photoelectric detection assembly in the first optical channel can be independently detachably arranged on the first base relative to the photoelectric probe assembly in the second optical channel.

5. The spectrometer box according to claim 1, characterized in that: A first side panel and a second side panel are mounted on the first base, the first base, the first side panel and the second side panel form an installation cavity, at least two pluggable dichroic mirror assemblies are arranged in the installation cavity, the dichroic mirror assembly comprises a dichroic mirror bracket and a dichroic mirror, the dichroic mirror bracket comprises a handle, a bracket portion and a clamping portion, the dichroic mirror is clamped on the dichroic mirror bracket by the clamping portion, and the dichroic mirror is pluggably installed in the corresponding optical channel by the handle.

6. The spectrometer box according to claim 5, characterized in that: The mounting cavity includes a plurality of sub-mounting cavities, each sub-mounting cavity corresponds to an optical channel, each sub-mounting cavity includes a first positioning surface and a second positioning surface arranged in mutually perpendicular directions, and the bracket portion is provided with a third positioning surface corresponding to the first positioning surface and a fourth positioning surface corresponding to the second positioning surface in two mutually perpendicular directions; One of the first positioning surface and the third positioning surface is provided with a positioning groove, and the other is provided with a matching positioning portion, one of the second positioning surface and the fourth positioning surface is provided with a positioning groove, and the other is provided with a matching positioning portion, and the dichroic mirror bracket is clamped in the sub-mounting cavity through the positioning surface of the sub-mounting cavity.

7. The spectrometer box according to claim 6, characterized in that: The first positioning surface is vertically arranged on the first side plate, and the second side plate includes the second positioning surface.

8. The spectrometer box according to claim 5, characterized in that: The bandpass component includes a bandpass bracket and a bandpass plate, wherein the bandpass plate is arranged in a preset groove of the bandpass bracket, and the second side panel is provided with a through hole corresponding to the position of each dichroic mirror, and the bandpass component is detachably connected to the second side panel, wherein the position of the bandpass plate in each optical channel corresponds to the through hole of the second side panel, so that the light signal reflected by the dichroic mirror is incident on the bandpass plate through the through hole.

9. The spectrometer box according to claim 8, characterized in that: A fixing hole is arranged on the edge surface of the second side plate away from the first base, a fixing piece is connected to the bandpass bracket, and the bandpass bracket is fixed to the edge surface of the second side plate through the fixing piece.

10. The spectrometer box according to claim 1, characterized in that: The photoelectric detection assembly includes a photoelectric detector mounting seat and a photoelectric detector. The photoelectric detector mounting seat is detachably mounted on a second base along the direction of the light signal reflected by the dichroic mirror in the dichroic mirror assembly. The photoelectric detector mounting seat is provided with a mounting hole corresponding to the position of the dichroic mirror, and the photodetector is detachably connected to the photoelectric detector mounting seat through the mounting hole.

11. The spectrometer box according to claim 10, characterized in that: A temperature control device is also arranged around the photoelectric detector mounting seat, and the temperature control device is used to control the temperature of the photoelectric detector.

12. The spectrometer box according to claim 11, characterized in that: The temperature control device is arranged between the photoelectric detector mounting seat and the second base.

13. The spectrometer box according to claim 10, characterized in that: The first base and the second base are arranged on the upper surface of the third base, and a heat dissipation component is arranged on the lower surface of the third base.

14. The spectrometer box according to claim 13, characterized in that: The heat dissipation component includes at least one of a heat sink and a fan, and the heat dissipation component is detachably arranged on the lower surface of the temperature control device arranged around the photoelectric detector mounting seat.

15. The spectrometer box according to claim 5, characterized in that: The dichroic mirror is at 45° to the incident direction of the optical signal.

16. A two-dimensional adjustable lens mounting seat, characterized in that: include: An adjustment assembly, a lens fixing assembly and a first locking member; The adjustment assembly comprises an adjustment support block, the adjustment support block is provided with at least three adjustment members that are not on the same straight line, or the adjustment support block is provided with at least two adjustment members and a protrusion, and the at least two adjustment members and the protrusion are not arranged on the same straight line, and the head of the adjustment member is provided with a connecting hole, wherein the adjustment support block is in contact with the lens fixing assembly through the at least three adjustment members, or through the at least two adjustment members and the protrusion; The lens fixing assembly is provided with a receiving groove for accommodating an optical lens, and the lens fixing assembly is provided with a first through hole at a position corresponding to the adjusting member. After passing through the first through hole, the first locking member is connected to the connecting hole of the adjusting member to fix the relative position between the adjusting support block and the lens fixing assembly.

17. The two-dimensionally adjustable lens mounting seat according to claim 16, characterized in that: The adjusting member comprises a ball head adjusting screw, and the ball head of the ball head adjusting screw is provided with an internal threaded hole; The first locking member includes a first locking screw, and the first locking screw is threadedly connected with the ball head adjusting screw after passing through the first through hole.

18. The two-dimensionally adjustable lens mounting seat according to claim 16, characterized in that: The adjustment support block comprises an L-shaped adjustment support block, the three adjustment members are arranged at the three vertices of the L-shaped adjustment support block, or two adjustment members are arranged at the two vertices along the diagonal of the L-shaped adjustment support block, and a hemispherical protrusion is arranged at the third vertex of the L-shaped adjustment support block.

19. The two-dimensionally adjustable lens mounting seat according to claim 16, characterized in that: The adjusting support block is provided with an adjusting hole, and the adjusting member is arranged on the adjusting support block through the adjusting hole; The adjustment hole is arranged in an opening shape, and the adjustment support block is also provided with fixing holes penetrating through both sides of the opening. A second locking member is arranged in the fixing hole, and the second locking member is used to fix the relative position of the adjustment member with respect to the adjustment hole.

20. The two-dimensionally adjustable lens mounting seat according to claim 16, characterized in that: The two-dimensional adjustment lens mounting seat also includes an elastic member, which is connected to the adjustment component and the lens fixing component, and is used to maintain the relative position of the lens fixing component with respect to the adjustment component.

21. The two-dimensionally adjustable lens mounting seat according to claim 20, characterized in that: The elastic member comprises a tension spring, and the two vertices of the adjustment support block along the diagonal are respectively provided with second through holes for fixing the tension spring, and a first fixing support is provided in the second through hole, and one end of the tension spring is sleeved on the first fixing support; The lens fixing assembly is also provided with a third through hole at a position corresponding to the second through hole, a second fixing support post is provided in the third through hole, and the other end of the tension spring is sleeved on the second fixing support post.

22. A lens assembly adjustment device, characterized in that: include: A base and a lens barrel seat arranged on the base, wherein the lens barrel seat is penetrated by a mounting hole, an inner lens barrel is mounted in the mounting hole, and a lens assembly is installed in the inner lens barrel; The lens barrel seat is adjustable in a first direction relative to the base, the inner lens barrel is adjustable in a second direction relative to the lens barrel seat, and the first direction and the second direction are perpendicular to each other.

23. The lens assembly adjustment device according to claim 22, characterized in that: The lens assembly adjustment device also includes an adjustment screw and a first locking screw; One of the base and the lens barrel seat is provided with the adjusting screw, the adjusting screw abuts against the other, and when the adjusting screw is adjusted, the relative position between the lens barrel seat and the base is changed in the first direction; One of the base and the lens barrel seat is provided with the first locking screw, and the first locking screw abuts against the other one. When the first locking screw is locked, the relative position between the lens barrel seat and the base is fixed in the first direction.

24. The lens assembly adjustment device according to claim 22, characterized in that: A focus adjustment nut is rotatably provided at the end of the lens barrel seat, the focus adjustment nut is threadedly connected to the inner lens barrel, the inner lens barrel is axially slidably provided relative to the lens barrel seat, and is axially fixedly provided relative to the lens barrel seat; When the focus adjustment nut is rotated, the inner lens barrel is adjusted along the second direction relative to the lens barrel seat.

25. The lens assembly adjustment device according to claim 24, characterized in that: A second locking screw is provided on the side wall of the focus adjustment nut, and the inner end of the second locking screw abuts against the lens barrel seat. When the second locking screw is fixed, it is used to fix the position of the focus adjustment nut relative to the inner lens barrel.

26. The lens assembly adjustment device according to claim 22, characterized in that: The lens assembly adjustment device also includes an elastic member, one end of which is connected to the inner lens barrel, and the other end of which is connected to the lens barrel seat to maintain the relative position between the inner lens barrel and the lens barrel seat.

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