CN112034608A - Light guide assembly and optical system - Google Patents

Abstract

The invention relates to the technical field of illumination, in particular to a light guide assembly and an optical system, wherein the light guide assembly comprises a light guide rod, a light guide rod mounting piece and a fixed base; the two opposite ends of the light guide rod mounting piece are respectively provided with a connecting part and a light guide rod sleeve, the connecting part and the light guide rod sleeve are provided with a first through cavity communicated with each other, and the light guide rod can be inserted and fixed in the first through cavity; the fixed base is provided with a second through cavity for inserting the light guide rod sleeve, the light guide rod sleeve is inserted into the second through cavity, the connecting part is arranged on the first end face of the fixed base, and the second end face, opposite to the first end face, of the fixed base is used for connecting the light source structure. The invention realizes the stable connection of the light guide rod and other optical structures by utilizing the light guide rod mounting piece and the fixed base, and ensures the stability of emergent light of the light guide rod.

Description

Light guide assembly and optical system

Technical Field

The present disclosure relates to the field of lighting technologies, and in particular, to a light guide assembly and an optical system.

Background

When the light source is applied to the illumination of a microscope system, the light guide rod is generally required to adjust the light emitted by the light source, and the originally diffused or different incident light can be adjusted into emergent light with uniform intensity through multiple reflections. For example, light rays emitted by a plurality of wavelength band LED light sources are combined and homogenized into illumination light rays which can be used for a microscope system. Due to structural limitation, instability exists in connection between the light guide rod and the light source or other optical structures, and the emergent direction and position of light rays are further influenced. Therefore, it is desirable to provide a light guide assembly that can be stably connected to ensure the stability of the emergent light.

Disclosure of Invention

One aspect of the present disclosure provides a light guide assembly comprising a light guide rod, a light guide rod mounting member, and a fixed base; the two opposite ends of the light guide rod mounting piece are respectively provided with a connecting part and a light guide rod sleeve, the connecting part and the light guide rod sleeve are provided with a first through cavity communicated with each other, and the light guide rod can be inserted and fixed into the first through cavity; the fixed base is provided with a second through cavity for inserting the light guide rod sleeve, when the light guide rod sleeve is inserted into the second through cavity, the connecting part is arranged on the first end face of the fixed base, and the second end face of the fixed base opposite to the first end face is used for connecting the light source structure.

In embodiments of the present disclosure, the light guide rod has a prism and/or prism-mesa structure.

In the embodiment of the present disclosure, the connecting portion is provided with a sinking platform for connecting the optical lens, and the port of the first through cavity is disposed in the middle of the sinking platform, so that the central axis of the light guide rod coincides with the central axis of the optical lens.

In the embodiment of the disclosure, the major diameter of the connecting portion is larger than that of the second through cavity, and when the light guide rod sleeve is inserted into the second through cavity, the connecting portion is erected on the first end face.

In the embodiment of the disclosure, the first end surface and the connecting portion are alternatively provided with a positioning pin, the other end surface is provided with a positioning groove matched with the positioning pin, and when the connecting portion is arranged on the first end surface, the position of the light guide rod sleeve in the second through cavity can be fixed by matching the positioning pin with the positioning groove.

In the embodiment of the present disclosure, when the light guide rod is fixed in the first through cavity, the end of the light guide rod is flush with the end surface of the connecting portion, or the end of the light guide rod is slightly lower than the end surface of the connecting portion.

In the embodiment of the present disclosure, the fin mounting plate is provided with an arc surface connecting portion, the light guide rod sleeve includes a plurality of clamping pieces arranged at intervals, and when the light guide rod is fixed in the first through cavity, the clamping pieces contact with the side surface of the light guide rod.

In the embodiment of the disclosure, a gap is formed between every two adjacent clamping pieces, and when the light guide rod is fixed in the first through cavity, each edge of the light guide rod in the axial direction is exposed in each gap.

In the embodiment of the present disclosure, when the light guide rod is fixed in the first through cavity, each edge of the end of the light guide rod is not in contact with each edge of the port of the first through cavity.

In the embodiment of the present disclosure, when the light guide rod is fixed in the first through cavity, the end of the light guide rod exceeds the light guide rod sleeve.

In the embodiment of the present disclosure, a positioning column is disposed on the second end surface of the fixing base, and the positioning column is matched with the concentric positioning hole on the light source structure.

In the embodiment of the present disclosure, the second end surface of the fixing base is further provided with at least one mounting hole for installing and connecting a fixing connector of the light source structure.

In the embodiment of the disclosure, at least one mounting window is further arranged on the side surface of the fixing base along the circumferential direction of the second through cavity.

In the embodiment of the present disclosure, the light guide assembly further includes a light guide rod fastener, and the light guide rod fastener is sleeved outside the light guide rod sleeve, and the light guide rod can be fixed in the first through cavity.

Another aspect of the present disclosure provides an optical system including a light source structure, an optical lens, and the above light guide assembly.

The light guide assembly and the optical system provided by the disclosure have the following technical effects:

this is disclosed utilizes leaded light stick installed part and fixed baseplate to realize leaded light stick and other optical structure's firm being connected, ensures leaded light stick emergent ray's stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1: an exploded view of a light guide assembly provided by an embodiment of the present disclosure;

FIG. 2: a side view of a light guide assembly provided by an embodiment of the present disclosure;

FIG. 3: the light guide rod mounting piece of the light guide assembly provided by the embodiment of the disclosure is a front view;

FIG. 4: the front view of the fixed base of the light guide assembly provided by the embodiment of the disclosure;

FIG. 5: a side view of a light guide assembly provided by an embodiment of the present disclosure;

in the figure: 100-light guide rod, 200-light guide rod mount, 210-connection part, 220-light guide rod sleeve, 230-first through cavity, 240-sinking platform, 250-positioning pin, 260-clamping sheet, 270-gap, 280-through cavity sinking platform, 300-fixing base, 310-second through cavity, 320-first end surface, 330-second end surface, 340-positioning groove, 350-positioning column, 360-mounting hole, 370-mounting window, 400-light guide rod fastener, 500-light source structure, 600-optical lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product, or device.

The embodiments are described below with reference to the accompanying drawings, which do not limit the disclosure recited in the claims in any way.

Referring to fig. 1-5, in one aspect, the present disclosure provides a light guide assembly, which includes a light guide rod 100, a light guide rod installation member 200, and a fixing base 300; the opposite two ends of the light guide rod mounting member 200 are respectively provided with a connecting part 210 and a light guide rod sleeve 220, the connecting part 210 and the light guide rod sleeve 220 are provided with a first through cavity 230 which is communicated with each other, and the light guide rod 100 can be inserted and fixed in the first through cavity 230; the fixing base 300 is provided with a second through cavity 310 for inserting the light guide rod sleeve 220, when the light guide rod sleeve 220 is inserted into the second through cavity 310, the connecting portion 210 is disposed on the first end surface 320 of the fixing base 300, and a second end surface 330 of the fixing base 300 opposite to the first end surface 320 is used for connecting the light source structure 500.

Thus, the light guide rod 100 is stably connected with other optical structures by the light guide rod installation part 200 and the fixed base 300, and the stability of the emergent light of the light guide rod 100 is ensured. In practical applications, the light guide assembly may be applied to a micro-optical system, and the light emitted from the light source structure 500 is reflected for multiple times by the side surfaces of the prism and/or prism-frustum structures of the light guide rod 100, and finally the light is integrated into an emergent light with uniform intensity, such as a fluorescence micro-optical system using a multiband LED combined light source.

In the embodiment of the present disclosure, the light guide rod 100 has a prism and/or prism-frustum structure, and the light guide rod 100 may have a solid or hollow structure.

Further, at least a portion of the light bar 100 is a prism and/or prism-mesa structure.

In some embodiments, the light guide rod 100 may have a prism structure, and the two bottom surfaces of the prism structure are the incident end surface and the exit end surface of the light guide rod 100.

In other embodiments, the light guide rod 100 may have a truncated pyramid structure, and the two bottom surfaces of the truncated pyramid structure are the incident end surface and the exit end surface of the light guide rod 100.

In other embodiments, the light guide rod 100 may have N prism structures with different base areas, where N is a positive integer greater than or equal to 2, and the N prism structures are axially connected end to form the light guide rod 100.

In other embodiments, the light guide rod 100 may have N frustum structures with different bottom surface areas, where N is a positive integer greater than or equal to 2, and the N frustum structures are connected end to end along the axial direction of the light guide rod 100.

In other embodiments, the light bar 100 can have N1 prism structures with different base areas and N2 prism structures with different base areas, where N1 and N2 are positive integers greater than or equal to 1, and each prism structure and prism structure are connected end to end along its axis to form the light bar 100.

Further, in some embodiments, the light guide rod 100 may be a quadrangular prism structure. In one embodiment, referring to FIG. 1, the light guide rod 100 has a straight quadrangular prism structure.

In some embodiments, the light guide rod 100 can have a smooth surface and/or a frosted surface. In one embodiment, one end of the light guide rod 100 is a frosted surface and the other end is a polished surface.

In some embodiments, the light guide rod 100 may be made of glass or plastic, and in one embodiment, the light guide rod is made of quartz.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the light guide assembly further includes a light guide rod fastener 400, and the light guide rod 100 can be fixed in the first through cavity 230 by sleeving the light guide rod fastener 400 on the outside of the light guide rod sleeve 220. Thus, the stability of the light guide rod 100 after connection is increased.

In some embodiments, the light guide rod sleeve 220 is threaded with the light guide rod fastener 400. Specifically, light guide rod sleeve 220 is equipped with first external screw thread, light guide rod fastener 400 be equipped with first external screw thread assorted first internal thread, light guide rod sleeve 220 can pass through first external screw thread and first internal thread with light guide rod fastener 400 spiro union. In one embodiment, the light bar fastener 400 may be a nut.

In some embodiments, the side of second through-cavity 310 facing light bar mount 200 can allow light bar fastener 400 to pass through; and/or, the side of the second through cavity 310 facing the light source structure 500 allows the light guide rod fastener 400 to pass through.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, referring to fig. 3, the connecting portion 210 is provided with a sinking platform 240 for mounting the optical lens 600, and a port of the first through cavity 230 is disposed in the middle of the sinking platform 240, so that a central axis of the light guide rod 100 coincides with a central axis of the optical lens 600. Thus, the optical lens 600 can be attached to the sinking stage 240, and the side wall of the sinking stage 240 can protect the edge of the lens, thereby reducing the possibility of damage to the optical lens 600. In addition, the concentric arrangement of optical lens 600 and light guide rod 100 is facilitated.

In an embodiment, after the light guide rod 100 is inserted and fixed in the first through cavity 230 and the light guide rod sleeve 220 is inserted and fixed in the second through cavity 310, the optical lens 600 and the light guide rod 100 are concentric by mounting the optical lens 600 on the connecting portion 210; further, after the fixing base 300 is mounted on the light source structure 500, the optical lens 600, the light guide rod 100 and the light emitting region of the light source are concentric; further, one end of the light guide rod 100 abuts on the light emitting region of the light source structure 500 or the light emitting region cover plate.

In practical applications, the major diameter of the first through cavity 230 is larger than that of the light guide rod 100.

In some embodiments, the first through cavity 230 is the same shape as the light guide rod 100. In one embodiment, the first through cavity 230 is a straight quadrangular prism structure.

In some embodiments, the stage 240 is clearance fit with the optical lens 600.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the major diameter of the connecting portion 210 is larger than the major diameter of the second through cavity 310, and after the light guide rod sleeve 220 is inserted into the second through cavity 310, the connecting portion 210 is erected on the first end surface 320. In this manner, light guide rod attachment device 200 to which light guide rod 100 is fixed is placed on fixed base 300.

In some embodiments, the first end surface 320 is a planar structure, and a side of the connecting portion 210 facing the first end surface 320 is also a planar structure.

In some embodiments, the side profile of light guide rod mount 200 can be T-shaped, with connecting portion 210 at the top of the T-shape and light guide rod sleeve 220 at the bottom.

In some embodiments, the light guide rod sleeve 220 can be screwed into the second through cavity 310. Specifically, the light guide rod sleeve 220 is provided with a second external thread, the side wall of the second through cavity 310 is provided with a second internal thread matched with the second external thread, and the light guide rod sleeve 220 can be screwed in the second through cavity 310 through the second external thread and the second internal thread. As such, the position of the light guide rod sleeve 220 in the second through cavity 310 is fixed.

In other embodiments, based on some or all of the above embodiments, the first end surface 320 and the connecting portion 210 are alternatively provided with a positioning pin 250, and the other end surface is provided with a positioning groove 340 matching with the positioning pin 250, so that when the connecting portion 210 is placed on the first end surface 320, the position of the light guide rod sleeve 220 in the second through cavity 310 can be fixed by matching the positioning pin 250 with the positioning groove 340. In one embodiment, at least two alignment pins 250 are provided to limit the relative movement between the light guide rod mount 200 and the fixed base 300 after the light guide rod sleeve 220 is inserted into the second through-cavity 310.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, when the light guide rod 100 is fixed in the first through cavity 230, the exit end of the light guide rod 100 is flush with the end surface of the connection portion 210, or the exit end of the light guide rod 100 is slightly lower than the end surface of the connection portion 210. Thus, the light guide rod 100 is protected from being broken by external force (e.g., stress between the light guide rod and the optical lens 600).

In some embodiments, the exit end of the light guide rod 100 is flush with the bottom surface of the sinking platform 240, or slightly lower than the bottom surface of the sinking platform 240.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the light guide rod sleeve 220 includes a plurality of clamping sheets 260 disposed at intervals, and when the light guide rod 100 is fixed in the first through cavity 230, the clamping sheets 260 contact with the side surface of the light guide rod 100. In one embodiment, the light guide rod sleeve 220 includes four clamping pieces 260, and when the light guide rod 100 with a straight quadrangular prism structure is fixed in the first through cavity 230, the four clamping pieces 260 are respectively in contact with four side surfaces of the light guide rod 100 in the axial direction.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, a gap 270 is formed between adjacent clamping sheets 260, and when the light guide rod 100 is clamped in the first through cavity 230, each edge of the light guide rod 100 in the axial direction is exposed to each gap 270. Thus, the edges of light bar 100 in the axial direction do not contact light bar sleeve 220, and no stress is generated between the edges and light bar mounting member 200 during installation and use, thereby reducing the possibility of the edges of light bar 100 breaking due to stress.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, when the light guide rod 100 is fixed in the first through cavity 230, each edge of the exit end of the light guide rod 100 is not in contact with each edge of the port of the first through cavity 230. Thus, no stress is generated between the light guide rod mounting member 200 and the location during installation and use, and the possibility of cracking of the edge of light guide rod 100 due to stress is reduced.

In some embodiments, referring to fig. 5, a cavity sinking platform 280 is disposed at the port of the sinking platform 240 located in the first through cavity 230, so that the sidewall of the port of the first through cavity 230 avoids contact with the edge of each exit end of the light guide rod 100.

In other embodiments, each side length of the port of the first through cavity 230 of the connecting portion 210 is greater than each side length corresponding to the light guide rod 100, so that the side wall of the port of the first through cavity 230 avoids the contact with the edge of each exit end of the light guide rod 100.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, when the light guide rod 100 is fixed in the first through cavity 230, the incident end of the light guide rod 100 extends beyond the light guide rod sleeve 220. Thus, no stress is generated between the light guide rod 100 and the light guide rod mounting member 200 during installation and use, so that the possibility of the edge of the light guide rod 100 being cracked due to stress is reduced, and the light guide rod 100 and the light source structure 500 can be arranged in a contact manner.

Based on some or all of the above embodiments, in the embodiment of the disclosure, the second end surface 330 of the fixing base 300 is provided with a positioning column 350, which is matched with the concentric positioning hole on the light source structure 500. Thus, alignment and concentric arrangement of the light emitting region of the light source structure 500 with the light guide rod 100 is facilitated.

In some embodiments, at least two positioning posts 350 are provided.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, at least one mounting hole 360 is further disposed on the second end surface 330 of the fixing base 300, for disposing a fixing connector connected to the light source structure 500.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, at least one mounting window 370 is further disposed on a side surface of the fixing base 300 along the circumferential direction of the second through cavity 310.

In some embodiments, the mounting holes 360 are located on the sides of the mounting window 370. In this manner, the fixing connector is inserted into the mounting hole 360 through the mounting window 370 and then connected with the light source structure 500.

Another aspect of the present disclosure provides an optical system including the light source structure 500, the optical lens 600, and the light guide assembly.

In one embodiment, the method for installing the light guide assembly in the optical system may be: inserting the light guide rod sleeve 220 of the light guide rod mount 200 into the second through-cavity 310 of the fixture base 300 and inserting the positioning pin 250 into the positioning groove 340; inserting the light bar 100 into the first through-cavity 230 of the light bar mounting member 200, inserting the light bar fastener 400 from the side of the second through-cavity 310 facing the light source structure 500, and fixing the position of the light bar 100 in the first through-cavity 230 by sleeving it on the light bar sleeve 220; inserting the positioning posts 350 of the fixing base 300 into the concentric positioning holes of the light source structure 500, and fixing the fixing base 300 on the light source structure 500 by disposing the fixing connectors in the mounting holes 360 of the fixing base 300, at this time, the light guiding rod 100 abuts on the light emitting region or the light emitting region cover plate of the light source structure 500; the optical lens 600 is mounted in the depressed stage 240 of the connecting part 210 of the light guide rod mounting member 200 to complete the mounting of the light guide assembly and the optical lens 600.

The firm connection of leaded light stick, light source structure and optical lens can be realized to light guide assembly and optical system that this disclosure provided, guarantees its concentric setting, ensures leaded light stick emergent ray's stability, and can reduce the stress that leaded light stick easily received when installation and use, reduces the cracked possibility of leaded light stick.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

All of the features described in the present application (including the features described in the different embodiments) may be combined arbitrarily and combined as appropriate to form a new technical solution within the scope of the present application.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (15)

1. A light guide assembly comprising a light guide rod (100), a light guide rod mounting member (200), and a fixed base (300);

the two opposite ends of the light guide rod mounting piece (200) are respectively provided with a connecting part (210) and a light guide rod sleeve (220), the connecting part (210) and the light guide rod sleeve (220) are provided with a first through cavity (230) which is communicated, and the light guide rod (100) can be inserted and fixed in the first through cavity (230);

the fixed base (300) is provided with a second through cavity (310) for inserting the light guide rod sleeve (220), when the light guide rod sleeve (220) is inserted into the second through cavity (310), the connecting part (210) is arranged on the first end face (320) of the fixed base (300), and the second end face (330) of the fixed base (300) opposite to the first end face (320) is used for connecting the light source structure (500).

2. A light-guiding assembly according to claim 1, wherein the light-guiding rod (100) has a prismatic and/or prismatic-table structure.

3. The light guide assembly according to claim 1, wherein the connecting portion (210) is provided with a sunken stage (240) for connecting an optical lens (600), and the port of the first through cavity (230) is disposed at the middle of the sunken stage (240) so that the central axis of the light guide rod (100) coincides with the central axis of the optical lens (600).

4. A light guide assembly according to claim 3, wherein the major diameter of the connecting portion (210) is larger than the major diameter of the second through cavity (310), and the connecting portion (210) is mounted on the first end surface (320) when the light guide rod sleeve (220) is inserted into the second through cavity (310).

5. The light guide assembly according to claim 4, wherein the first end surface (320) and the connecting portion (210) are alternatively provided with a positioning pin (250), and the other is provided with a positioning groove (340) matched with the positioning pin (250); when the connecting part (210) is arranged on the first end surface (320), the position of the light guide rod sleeve (220) in the second through cavity (310) can be fixed by matching the positioning pin (250) with the positioning groove (340).

6. A light guide assembly according to claim 1, characterized in that the exit end of the light guide rod (100) is flush with the end surface of the connection portion (210) or the exit end of the light guide rod (100) is slightly lower than the end surface of the connection portion (210) when the light guide rod (100) is fixed in the first through cavity (230).

7. A light guide assembly according to any of claims 1 to 6, wherein the light guide rod sleeve (220) comprises a plurality of clamping sheets (260) arranged at intervals, the clamping sheets (260) being in contact with the side of the light guide rod (100) when the light guide rod (100) is fixed in the first through cavity (230).

8. The light guide assembly according to claim 7, wherein a gap (270) is formed between adjacent clamping sheets (260), and each edge of the light guide rod (100) in the axial direction is exposed to each gap (270) when the light guide rod (100) is fixed in the first through cavity (230).

9. The light guide assembly of any of claims 1-6 and 8, wherein the input end of the light guide rod (100) extends beyond the light guide rod sleeve (220) when the light guide rod (100) is secured in the first through cavity (230).

10. A light-guiding assembly according to claim 2 or 8, characterized in that, when the light-guiding rod (100) is fixed in the first through cavity (230), the edges of the end of the light-guiding rod (100) are not in contact with the edges of the port of the first through cavity (230).

11. The light guide assembly of claim 1, wherein the second end surface (330) of the fixing base (300) is provided with a positioning column (350), and the positioning column is matched with a concentric positioning hole on the light source structure (500).

12. A light guide assembly according to claim 1 or 11, wherein the second end face (330) of the fixing base (300) is further provided with at least one mounting hole (360) for providing a fixing connection for connecting the light source structure (500).

13. A light-guiding assembly according to claim 12, wherein the fixing base (300) is further provided with at least one mounting window (370) on a side surface along the circumference of the second through cavity (310).

14. A light guide assembly according to any one of claims 1-6,8,11 and 13, further comprising a light guide rod fastener (400), wherein the light guide rod (100) can be fixed in the first through cavity (230) by fitting the light guide rod fastener (400) over the light guide rod sleeve (220).

15. An optical system comprising a light source structure (500), an optical lens (600) and a light guiding assembly according to any one of claims 1-14.

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