CN213581608U

CN213581608U - Light splitting imaging structure

Info

Publication number: CN213581608U
Application number: CN202021962249.8U
Authority: CN
Inventors: 桂立
Original assignee: Suzhou Saiyuan Optical Technology Co ltd
Current assignee: Suzhou Saiyuan Optical Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-06-29
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a beam split imaging structure, including beam split structure, beam split structure falls into main light path and a plurality of beam split way with the light source, beam split imaging structure still includes focusing subassembly and light sweetgum fruit passway ware, the focusing subassembly includes the focusing lens piece, the light path passway ware is equipped with main light sweetgum fruit passway and beam split sweetgum fruit passway, the focusing lens piece is installed in beam split sweetgum fruit passway, through the above-mentioned design, through the mode of placing the focusing lens piece in beam split sweetgum fruit place ahead, make the optical path difference of each imaging channel unanimous, only use a plane detector can realize the supervision to the image of a plurality of passageways.

Description

Light splitting imaging structure

Technical Field

The utility model relates to an imaging optical system especially relates to a beam split imaging structure.

Background

The spectroscopic imaging optical system can acquire the component of an object or information on a substance contained in the object without damaging the object, and is widely used for acquiring spectral image data of the object and analyzing the data to obtain component information.

In a conventional spectroscopic imaging optical system, the optical path difference between a main optical path and a spectroscopic optical path is different, so that the imaging requirement of the main optical path and the spectroscopic optical path on the same focal plane cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, an object of the present invention is to provide a light splitting imaging structure with no optical path difference between the main optical path and the light splitting optical path.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the utility model provides a beam split imaging structure, includes the beam split structure, the beam split structure falls into main light path and a plurality of beam split way with the light source, beam split imaging structure still includes focusing subassembly and light path channel ware, the focusing subassembly includes focusing lens, light path channel ware is equipped with main light path channel and beam split way passageway, focusing lens piece install in beam split way passageway.

Furthermore, the light splitting imaging structure comprises a frame, the light splitting structure comprises a polarizing beam splitter and a reflecting assembly, the reflecting assembly comprises a fixed seat and a reflecting mirror, the reflecting mirror is fixed on the fixed seat, the polarizing beam splitter is fixedly arranged on the frame, and the fixed seat is angularly adjustably arranged on the frame.

Further, the frame includes bottom plate, spliced pole and roof, the roof pass through spliced pole fixed mounting in the bottom plate, polarization spectroscope is fixed in the bottom plate, the roof is equipped with the regulation hole, the fixing base pass through the screw rotate install in the regulation hole.

Furthermore, the light splitting structure further comprises a light splitting prism, the light splitting prism is located in front of the polarizing beam splitter, and the light splitting prism is fixed on the bottom plate.

Furthermore, the number of the reflecting assemblies is two, one reflecting assembly is located above the polarizing beam splitter and behind the beam splitter prism, and the other reflecting assembly is located on one side of the beam splitter prism.

Further, the spectral imaging structure further comprises an optical filter, and the optical filter is located between the spectral structure and the optical channel device.

Further, the light splitting imaging structure comprises a frame, the frame comprises a top plate, the top plate is provided with a slot, and the optical filter is installed on the frame through the slot.

Furthermore, the light path channel device is provided with a mounting groove, the mounting groove is positioned on the side surface of the light path channel device and communicated with the light splitting path channel, the focusing assembly further comprises a mounting rod, and the mounting rod is positioned in the mounting groove and fixedly connected with the focusing lens.

Compared with the prior art, the utility model discloses beam split imaging structure still includes focusing subassembly and light path passageway ware, and the focusing subassembly includes the focusing lens piece, and the light path passageway ware is equipped with main light path way and beam split way, and the focusing lens piece is installed in beam split way, through above-mentioned design, through the mode of placing the focusing lens piece in beam split way the place ahead, makes the optical path difference of each imaging channel unanimous, only uses a plane detector can realize the monitoring to the image of 4 passageways; the spectra of the 4 channels can be adjusted by means of a patch filter; the reflector can be adjusted in angle through an adjusting screw at the top, so that the imaging position of the light splitting path can be adjusted; the whole structure is simple and compact, and the device can be arranged on an adjusting frame or an optical experiment platform.

Drawings

Fig. 1 is a perspective view of the spectroscopic imaging structure of the present invention;

FIG. 2 is an exploded view of the spectroscopic imaging configuration of FIG. 1;

FIG. 3 is a partial structural perspective view of the spectroscopic imaging structure of FIG. 2;

fig. 4 is an optical path diagram of the spectroscopic imaging configuration of fig. 1.

In the figure: 10. a frame; 11. a base plate; 12. connecting columns; 13. a top plate; 130. an adjustment hole; 131. a slot; 132. connecting holes; 20. a polarizing beam splitter; 30. a beam splitter prism; 40. a reflective component; 41. a fixed seat; 42. a mirror; 50. an optical filter; 60. a focusing assembly; 61. a focusing lens; 62. mounting a rod; 70. a light path channel device; 71. a main light path channel; 72. a light splitting path channel; 73. mounting grooves; 200. a flat panel detector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a spectroscopic imaging structure of the present invention includes a frame 10, a spectroscopic structure, a filter 50, a focusing assembly 60, and a light path channel 70.

The frame 10 includes a bottom plate 11, a connection post 12, and a top plate 13. One end of the connecting column 12 is fixed with the bottom plate 11, and the other end is fixed with the top plate 13. In the present embodiment, the number of the connecting columns 12 is four. The bottom plate 11 and the top plate 13 are rectangular. Four connecting posts 12 are located at the four corners of the bottom plate 11 and the top plate 13. The bottom plate 11 and the top plate 13 are parallel to each other. The top plate 13 is provided with an adjustment hole 130, an insertion groove 131, and a connection hole 132. The adjustment holes 130 are threaded holes. The insertion groove 131 is a linear groove. The attachment holes 132 are used to mount the attachment posts 12.

The light splitting structure includes a polarizing beam splitter 20, a light splitting prism 30 and two reflecting components 40. The polarization beam splitter 20 and the beam splitter prism 30 are fixed to the base plate 11. Each reflection assembly 40 includes a fixed base 41 and a reflection mirror 42. The reflecting mirror 42 is fixed to the fixing base 41. The fixing base 41 is rotatably mounted in the adjusting hole 130 by a screw, so that the angle of the reflecting mirror 42 can be adjusted conveniently. The positions of the two reflection assemblies 40 are: a reflection assembly 40 is located above the PBS 20 and behind the prism 30 (with the light source illuminating direction as the front). Another reflection assembly 40 is located at one side of the splitting prism 30.

The filter 50 is mounted to the top plate 13 of the frame 10 through the slot 131. The filter 50 is now in front of the light splitting structure.

The focus assembly 60 includes a focus lens 61 and a mounting rod 62. The focusing lens 61 is fixed to the end of the mounting rod 62.

The light path passage device 70 is provided with a main light path passage 71, a light path dividing passage 72, and a mounting groove 73. The mounting groove 73 is located at a side portion of the light path passage 70 and communicates with the light path dividing passage 72. In the present embodiment, the number of the main optical path channels 71 is one, and the number of the divided optical path channels 72 is three. Focusing lens 61 is mounted in split optical path channel 72, and mounting bar 62 is located in mounting slot 73.

Referring to fig. 4, when the spectroscopic imaging structure is used, the light source is divided into a main light path and three light paths through the spectroscopic imaging structure, and the three light paths are respectively named as a first light path, a second light path, and a third light path. Specifically, the method comprises the following steps: the light of the main light path passes through the polarization beam splitter 20, the beam splitter prism 30 and the optical filter 50 in sequence; the light in the first light splitting path passes through the polarizing beam splitter 20, the beam splitter prism 30, the reflecting mirror 42, the optical filter 50 and the focusing lens 61 in sequence; the light in the second light splitting path passes through the polarizing beam splitter 20, the reflecting mirror 42, the beam splitter prism 30, the optical filter 50 and the focusing lens 61 in sequence; the light in the third light splitting path passes through the polarizing beam splitter 20, the reflecting mirror 42, the beam splitter prism 30, the reflecting mirror 42, the optical filter 50 and the focusing lens 61 in sequence.

Through the design, the optical path difference of each imaging channel is consistent by placing the focusing lens 61 in front of the light splitting path, and the monitoring of images of 4 channels can be realized by only using one plane detector 200; the spectra of the 4 channels can be adjusted by means of a patch filter 50; the reflector 42 can be adjusted in angle through an adjusting screw at the top, so that the imaging position of the light splitting path can be adjusted; the whole structure is simple and compact, and the device can be arranged on an adjusting frame or an optical experiment platform.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, all according to the equivalent modifications and evolutions of the present invention, which are made to the above embodiments by the essential technology, and all belong to the protection scope of the present invention.

Claims

1. The utility model provides a beam split imaging structure, includes beam split structure, beam split structure divides into main light path and a plurality of beam split path with the light source, its characterized in that: the light splitting imaging structure further comprises a focusing assembly and a light path channel device, the focusing assembly comprises a focusing lens, the light path channel device is provided with a main light path channel and a light splitting path channel, and the focusing lens is installed in the light splitting path channel.

2. The spectroscopic imaging structure of claim 1, wherein: the light splitting imaging structure comprises a frame, the light splitting structure comprises a polarizing beam splitter and a reflecting assembly, the reflecting assembly comprises a fixing seat and a reflecting mirror, the reflecting mirror is fixed on the fixing seat, the polarizing beam splitter is fixedly installed on the frame, and the fixing seat is installed on the frame in an angle-adjustable manner.

3. The spectroscopic imaging structure of claim 2, wherein: the frame includes bottom plate, spliced pole and roof, the roof passes through spliced pole fixed mounting in the bottom plate, polarization spectroscope is fixed in the bottom plate, the roof is equipped with the regulation hole, the fixing base pass through the screw rotate install in the regulation hole.

4. The spectroscopic imaging structure of claim 3, wherein: the light splitting structure further comprises a light splitting prism, the light splitting prism is located in front of the polarizing beam splitter, and the light splitting prism is fixed on the bottom plate.

5. The spectroscopic imaging structure of claim 4, wherein: the number of the reflecting assemblies is two, one reflecting assembly is positioned above the polarizing beam splitter and behind the beam splitter prism, and the other reflecting assembly is positioned on one side of the beam splitter prism.

6. The spectroscopic imaging structure of claim 1, wherein: the light splitting imaging structure further comprises an optical filter, and the optical filter is located between the light splitting structure and the optical path channel device.

7. The spectroscopic imaging structure of claim 6, wherein: the light splitting imaging structure comprises a frame, the frame comprises a top plate, the top plate is provided with a slot, and the optical filter is arranged on the frame through the slot.

8. The spectroscopic imaging structure of claim 1, wherein: the focusing assembly further comprises an installation rod, and the installation rod is located in the installation groove and fixedly connected with the focusing lens.