Optical path fixing structure and optical device

Abstract

The utility model relates to a light path fixing structure and an optical device. The light path fixing structure comprises a light path plate used for arranging a light path structure; a transition plate, wherein the light path plate is connected with the transition plate; the shell is connected with the transition plate through a first fastener, a containing cavity is defined between the shell and the transition plate, and the light path plate is located in the containing cavity. According to the utility model, the technical problem that the accuracy of a test result is influenced due to the fact that the adjusted light path is changed by the existing light path mounting mode is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical element technical field especially relates to a light path fixed structure and optical device. BACKGROUND

[0002] At present, the installation mode of the optical element light path is generally to set the light path on the bottom plate (a threaded hole is preformed on the bottom plate), and then pass through the threaded hole on the bottom plate with a screw or other fastener to fix and connect the bottom plate and the shell of the optical element, but in the case of screwing the screw, a large installation stress will be generated between the shell and the bottom plate, and the bottom plate will be slightly deformed under the action of the installation stress, and for the adjusted light path, even the slight deformation of the bottom plate will cause a large change in the light path, which will greatly affect the test result; and since the bottom plate is connected with the shell of the optical element, the light path has been covered inside the shell, and the light path cannot be adjusted again, and if the light path is adjusted, the shell and the bottom plate need to be disassembled, but during the reinstallation, the deformation of the bottom plate caused by the installation stress still exists, and the influence on the light path cannot be solved.

[0003] For the problem that the installation mode of the existing light path in the related art will change the adjusted light path, thereby affecting the accuracy of the test result, no solution has been given at present.

[0004] Therefore, the utility model provides a light path fixed structure and optical device to overcome the defects of the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a light path fixed structure and optical device, connecting the shell and the transition plate, setting the light path on the light path plate instead of directly setting it on the transition plate, changing the installation mode of the light path, so that the installation of the shell will not cause the change of the light path due to the installation stress, thereby ensuring the accuracy of the test result of the optical device.

[0006] The purpose of the utility model can be achieved by the following scheme:

[0007] The utility model provides a light path fixed structure, which comprises:

[0008] A light path plate for setting a light path structure;

[0009] A transition plate connected with the light path plate;

[0010] A shell connected with the transition plate through a first fastener, and a containing cavity is formed between the shell and the transition plate, and the light path plate is located in the containing cavity.

[0011] In a preferred embodiment of the present application, the transition plate is provided with a light passing hole communicating with the accommodating cavity.

[0012] After the light path plate is connected with the transition plate and before the shell is connected, the light path structure on the light path plate is adjusted so that the light emitting position of the light path structure is aligned with the light passing hole.

[0013] In a preferred embodiment of the present application, the transition plate has a boss on the plate surface, the light path plate is fixed on the boss, and a gap is formed between the light path plate and the plate surface of the transition plate on both sides of the boss.

[0014] In a preferred embodiment of the present application, the light path plate and the boss are connected by a second fastener.

[0015] In a preferred embodiment of the present application, the second fastener includes a plurality of screws, and the light path plate and the boss are respectively provided with aligned threaded holes, and the screws pass through the threaded holes on the light path plate and the boss respectively.

[0016] In a preferred embodiment of the present application, the plate surface area of the light path plate is smaller than the plate surface area of the transition plate, so that in the connected state of the light path plate and the transition plate, the edge of the transition plate is exposed to the periphery of the light path plate, the shell is arranged on the outside of the light path plate, and the edge of the bottom opening of the shell is connected with the edge of the transition plate by the first fastener.

[0017] In a preferred embodiment of the present application, the first fastener includes a plurality of screws, and the edge of the bottom opening of the shell and the edge of the transition plate are respectively provided with aligned threaded holes, and the screws pass through the threaded holes of the edge of the bottom opening of the shell and the edge of the transition plate respectively.

[0018] The present application provides an optical device, which comprises:

[0019] The above-mentioned light path fixing structure;

[0020] A microscope is arranged below the light path fixing structure, and the light passing hole on the transition plate in the light path fixing structure is vertically opposite to the microscope.

[0021] In a preferred embodiment of the present application, the optical device further comprises a sample placing platform for placing a sample, and the sample placing platform is arranged below the microscope.

[0022] In a preferred embodiment of the utility model, the optical device further comprises a base, the optical path fixing structure, the microscope and the object placing platform are sequentially arranged on the base from top to bottom.

[0023] From the above, the optical path fixing structure and the optical device have the following characteristics and advantages:

[0024] The transition plate is additionally arranged to connect the optical path plate provided with the optical path structure and the transition plate, and the shell is connected with the transition plate through the first fastener, so that even if there is installation stress during the installation of the shell, the installation stress will only act on the transition plate directly, and the installation stress will not directly affect the optical path plate, so that the optical path plate will not be deformed due to the installation of the shell, and the optical path structure will not be changed due to the installation of the shell, thereby ensuring the stability of the optical path and the accuracy of the test result of the optical device.

[0025] In addition, during the connection of the optical path plate and the transition plate, even if the optical path plate is slightly deformed due to the connection mode, the optical path structure can be adjusted again before the shell is installed, so that the optical path structure is adjusted to ensure the accuracy of the optical path structure before the shell is installed, so that the influence of the connection of the optical path plate and the transition plate on the optical path structure can be effectively solved, and the accuracy of the test result of the optical device can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] The following drawings are only intended to illustrate and explain the utility model, and do not limit the scope of the utility model. Among them:

[0027] Figure 1 It is a structure schematic view of the optical device in the utility model in the exploded state.

[0028] In the utility model, the reference signs are:

[0029] 1, optical path plate, 2, transition plate,

[0030] 201, boss, 202, light passing hole,

[0031] 3, shell, 4, second fastener,

[0032] 5, first fastener, 6, microscope,

[0033] 7, base, 8, object placing platform. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be described in detail below in combination with the drawings and specific embodiments, and it should be understood that these embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model, and after reading the utility model, various equivalent modifications of the utility model made by those skilled in the art all fall within the scope defined by the appended claims of the present application.

[0035] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] Implementation Method 1

[0038] like Figure 1 As shown, this utility model provides an optical path fixing structure, which includes an optical path plate 1, a transition plate 2, and a housing 3. Both the optical path plate 1 and the transition plate 2 are flat plate structures arranged in the horizontal direction. The optical path plate 1 is provided with an optical path structure and is located above the transition plate 2. The bottom surface of the optical path plate 1 is fixedly connected to the top surface of the transition plate 2. The housing 3 is a cylindrical structure with a sealed top and an open bottom. The housing 3 is connected to the transition plate 2 by a first fastener 5. The housing 3 and the transition plate 2 enclose and form an accommodating cavity. The optical path plate 1 is covered in the accommodating cavity formed by the housing 3 and the transition plate 2.

[0039] In this invention, a transition plate 2 is added, and the optical path structure is set on the optical path plate 1 instead of directly on the transition plate 2. This changes the installation method of the optical path structure, connecting the optical path plate 1 and the transition plate 2. The outer shell 3 is connected to the transition plate 2 through the first fastener 5. Even if there is installation stress when installing the outer shell 3, it will only act directly on the transition plate 2, thus avoiding the direct impact of installation stress on the optical path plate 1 and the optical path structure on the optical path plate 1. This ensures that the optical path plate 1 will not deform due to the installation of the outer shell 3, and that the optical path structure will not change due to the installation of the outer shell 3, thereby effectively ensuring the stability of the optical path and the accuracy of the optical device test results.

[0040] The optical path structure described above in this utility model can be any optical path that can be set on the optical path plate 1, and the specific structure of the optical path is not limited here.

[0041] In one optional embodiment of this utility model, such as Figure 1As shown, a light-passing hole 202 communicating with the accommodating chamber is provided on the transition plate 2. The emitted light from the optical path structure can be emitted through the light-passing hole 202 to achieve optical detection. During the installation process, when the optical path plate 1 and the transition plate 2 have been connected but the outer shell 3 has not been connected, the optical path structure on the optical path plate 1 can be adjusted to ensure that the light-emitting position of the optical path structure is aligned with the light-passing hole 202, and to ensure that the accuracy of the optical path structure is not affected by the connection between the optical path plate 1 and the transition plate 2.

[0042] The specific reason is that during the connection process between the optical path board 1 and the transition plate 2, the connection method between the optical path board 1 and the transition plate 2 may generate installation stress on the optical path board 1, causing a slight deformation of the optical path board 1. Even if this happens, the optical path structure on the optical path board 1 can be readjusted after the optical path board 1 and the transition plate 2 are fixed and before the housing 3 is installed. After ensuring the accuracy of the optical path structure, the housing 3 and the transition plate 2 can be connected. Therefore, the influence of the connection between the optical path board 1 and the transition plate 2 on the optical path structure can be effectively solved, and the accuracy of the test results of the optical device can be guaranteed.

[0043] Furthermore, such as Figure 1 As shown, a rectangular boss 201 is provided in the middle of the top surface of the transition plate 2. The optical path plate 1 is fixed to the boss 201, and the bottom surface of the optical path plate 1 is connected to the top surface of the boss 201. There is a gap between the optical path plate 1 and the top surfaces of the transition plate 2 located on both sides of the boss 201. When the optical path plate 1 is connected to the transition plate 2, the optical path plate 1 is only connected and fixed to the boss 201, and does not contact or connect to other positions on the transition plate 2. This can effectively reduce the impact of deformation of the transition plate 2 on the optical path plate 1 during the connection between the outer shell 3 and the transition plate 2, thereby ensuring that the optical path structure on the optical path plate 1 is not affected by installation stress, and further improving the stability of the optical path.

[0044] Furthermore, such as Figure 1 As shown, the optical path board 1 and the boss 201 are connected by the second fastener 4.

[0045] The second fastener 4 includes multiple screws. The optical path plate 1 and the boss 201 are respectively provided with aligned threaded holes. The multiple screws pass through the threaded holes on the aligned optical path plate 1 and the boss 201 to achieve a fixed connection between the optical path plate 1 and the boss 201 on the transition plate 2.

[0046] In one optional embodiment of this utility model, such as Figure 1As shown, the plate area of the light path plate 1 is smaller than the plate area of the transition plate 2, so that the edges of the transition plate 2 can be exposed to the outer periphery of the light path plate 1 in the stacked connection state of the light path plate 1 and the transition plate 2, so that the housing 3 covers the outside of the light path plate 1 in the connection state of the housing 3 and the transition plate 2, and the edges of the bottom opening of the housing 3 and the edges of the transition plate 2 are connected by the first fastener 5.

[0047] The first fastener 5 includes a plurality of screws, and the edges of the bottom opening of the housing 3 and the edges of the transition plate 2 are respectively provided with aligned threaded holes, and the plurality of screws are respectively inserted into the threaded holes of the edges of the bottom opening of the housing 3 and the edges of the transition plate 2, so as to realize the fixed connection of the housing 3 and the transition plate 2.

[0048] The light path fixing structure has the following characteristics and advantages:

[0049] I. The light path fixing structure changes the installation method of the light path structure, connects the light path plate 1 and the transition plate 2, and connects the housing 3 and the transition plate 2 through the first fastener 5. The installation stress generated in the process of installing the first fastener 5 only acts on the transition plate 2, and does not conduct to the light path plate 1, and does not affect the light path structure on the light path plate 1, so as to ensure that the light path plate 1 will not be deformed due to the installation of the housing 3, and the light path structure will not be changed due to the installation of the housing 3, thereby effectively ensuring the stability of the light path and the accuracy of the test results of the optical device.

[0050] II. The light path fixing structure is provided with a boss 201 on the transition plate 2, and the light path plate 1 is fixed on the boss 201, and the light path plate 1 has a gap between the top plate surface of the transition plate 2 on both sides of the boss 201, which can effectively reduce the influence of the deformation of the transition plate 2 on the light path plate 1 in the process of connecting the housing 3 and the transition plate 2, thereby ensuring that the light path structure on the light path plate 1 is not affected by the installation stress, and further improving the stability of the light path.

[0051] III. The light path fixing structure can basically eliminate the influence of the installation stress generated by the installation of the housing 3 on the light path plate 1 and the light path structure, and ensure the stability of the light path.

[0052] Embodiment two

[0053] As Figure 1As shown, the utility model provides an optical device, this optical device includes optical path fixed structure, microscope 6 and platform 8 of placing of above, platform 8 of placing is used for placing the sample of optical detection, microscope 6 sets up in the lower of optical path fixed structure, platform 8 sets up in the lower of microscope 6, the light hole 202 on transition plate 2 in optical path fixed structure and the vertical opposite of microscope 6.Transition plate 2 in optical path fixed structure and the vertical opposite of microscope 6.The emergent light of optical path structure is shot to microscope 6 through light hole 202, and microscope 6 irradiates light on sample, and optical detection is carried out.

[0054] Further, as Figure 1 As shown, the optical device further includes a base 7, and the optical path fixed structure, the microscope 6 and the platform 8 for placing are sequentially arranged on the base 7 from top to bottom.

[0055] The optical device has the characteristics and advantages of the optical path fixed structure, and details are not repeated here.

[0056] It should be noted that, in the description of the present application, the terms "first", "second" and the like are only used for the purpose of description and distinguishing similar objects, and there is no sequence between the two, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0057] Each of the above embodiments in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0058] The above is only several embodiments of the utility model, although the embodiments disclosed by the utility model are as above, but the content is only for the convenience of understanding the utility model and the adopted embodiment, not for limiting the utility model. Any person skilled in the art of the utility model can make any modification and change in the form and details of the embodiment without departing from the spirit and scope of the utility model disclosed by the utility model. The patent protection scope of the utility model still needs to be limited by the scope defined by the attached claims.

Claims

1. An optical path fixing structure characterized by comprising: The optical path fixing structure comprises: an optical path plate for setting an optical path structure; a transition plate, the optical path plate being connected to the transition plate; a housing, the housing being connected to the transition plate by a first fastener, a containing cavity being formed between the housing and the transition plate, the optical path plate being located in the containing cavity.

2. The optical path fixing structure according to claim 1, wherein The transition plate is provided with a light passing hole communicating with the containing cavity. After the optical path plate is connected to the transition plate and before the housing is connected, the optical path structure on the optical path plate is adjusted so that the light emitting position of the optical path structure is aligned with the light passing hole.

3. The optical path fixing structure according to claim 2, wherein The transition plate has a boss on its plate surface, the optical path plate being fixed to the boss, the optical path plate having a gap between its plate surface and the plate surface of the transition plate on both sides of the boss.

4. The optical path fixing structure according to claim 3, wherein The optical path plate and the boss are connected by a second fastener.

5. The optical path fixing structure according to claim 4, wherein The second fastener comprises a plurality of screws, the optical path plate and the boss being respectively provided with aligned threaded holes, the screws passing through the threaded holes on the optical path plate and the boss respectively.

6. The optical path fixing structure according to claim 1, wherein The plate surface area of the optical path plate is smaller than the plate surface area of the transition plate, so that in the connected state of the optical path plate and the transition plate, the edge of the transition plate is exposed outside the periphery of the optical path plate, the housing is arranged outside the optical path plate, and the edge of the bottom opening of the housing is connected to the edge of the transition plate by the first fastener.

7. The optical path fixing structure according to claim 6, wherein The first fastener comprises a plurality of screws, the edge of the bottom opening of the housing and the edge of the transition plate being respectively provided with aligned threaded holes, the screws passing through the threaded holes of the edge of the bottom opening of the housing and the edge of the transition plate respectively.

8. An optical device, characterized by The optical device comprises: the optical path fixing structure according to any one of claims 2 to 7; a microscope, the microscope being arranged below the optical path fixing structure, the light passing hole on the transition plate in the optical path fixing structure being vertically opposite to the microscope.

9. The optical device of claim 8, wherein, The optical device further comprises a sample placing platform for placing a sample, the sample placing platform being arranged below the microscope.

10. The optical device of claim 9, wherein, The optical device further comprises a base, the optical path fixing structure, the microscope and the sample placing platform being sequentially arranged on the base from top to bottom. The optical device further comprises a base, the optical path fixing structure, the microscope and the sample placing platform being sequentially arranged on the base from top to bottom.

Images