CN218414590U

CN218414590U - Omnibearing photoelectric detector

Info

Publication number: CN218414590U
Application number: CN202221582050.1U
Authority: CN
Inventors: 王多平; 王诚谣
Original assignee: Shanghai Senge Laser Technology Co ltd
Current assignee: Shanghai Senge Laser Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-01-31
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses an all-round photoelectric detector, all-round photoelectric detector include reflection cone mirror, clear glass pipe, photoelectric detector, convex lens and encapsulation casing, the reflection cone mirror with the encapsulation casing is established separately the both ends of clear glass pipe, photoelectric detector with convex lens all locates in the clear glass pipe, convex lens sets up photoelectric detector top protrusion in the top of encapsulation casing. The utility model provides an all-round photoelectric detector compares in current photoelectric detector can further solve the problem that can not all-round received light.

Description

Omnibearing photoelectric detector

Technical Field

The utility model relates to a photoelectric detection field especially relates to an all-round photoelectric detector.

Background

At present, common photoelectric detectors are basically of a plane receiving type, the receiving angle of the common photoelectric detectors has a blind zone, the receiving angle and the receiving range of some detectors are increased by adding a lens in front of a detecting element, but the receiving angle is smaller than 180 degrees, the receiving direction is only limited to be right in front of the detector, and the problem of omnibearing is solved by installing a plurality of detectors in the receiving direction according to different angles.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide an omnidirectional photoelectric detector, which aims to solve the above technical problem.

In order to achieve the above object, the utility model provides an all-round photoelectric detector includes reflection cone mirror, clear glass pipe, photoelectric detector, convex lens and packaging casing, the reflection cone mirror with packaging casing sets up separately the both ends of clear glass pipe, photoelectric detector with convex lens all locates in the clear glass pipe, convex lens sets up photoelectric detector top protrusion in packaging casing's top.

In one embodiment, the reflecting conical mirror comprises a mounting plate, a mounting body and a conical reflecting mirror arranged on the outer wall surface of the mounting body, the mounting plate seals the end part of the transparent glass tube, and the mounting body is connected with the mounting plate and is positioned in the transparent glass tube.

In one embodiment, the mounting body comprises a columnar connecting part and a conical mounting part which are connected, the columnar connecting part is connected between the mounting plate and the conical mounting part, the peripheral wall of the columnar connecting part is in contact connection with the inner wall surface of the transparent glass tube, and the conical reflector is mounted on the conical mounting part.

In one embodiment, the package housing is a cylindrical hollow housing with openings at two ends, a blocking plate is convexly arranged on the inner wall surface of the package housing, and the blocking plate is connected with the end of the transparent glass tube.

In an embodiment, the blocking plate includes an annular plate and an annular bottom plate, two sides of the annular plate are respectively connected to the inner wall surface of the package housing and the outer wall surface of the transparent glass tube, the annular bottom plate is protruded from the bottom end of the annular plate along the axial direction of the package housing, and the bottom end of the transparent glass tube is connected to the annular bottom plate.

In an embodiment, the omnidirectional photodetector further includes an optical filter disposed between the photodetector and the convex lens.

The technical scheme of the utility model among, after light shines on the reflection awl mirror through transparent glass pipe, penetrate to set up photoelectric detector after focusing on the convex lens after the refraction on, and the light of direct irradiation on the convex lens also can penetrate to photoelectric detector after focusing on, therefore all light of projecting on the convex lens all can be focused on, can receive more light energy like this. Compare in prior art can further solve the problem that can not all-round received light.

Drawings

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

Fig. 1 is a schematic structural diagram of an omnidirectional photodetector according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of an omnidirectional photodetector according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an omni-directional photodetector according to an embodiment of the present invention;

fig. 4 is a schematic view of the light ray received by the omnidirectional photodetector according to the embodiment of the present invention.

The reference numbers illustrate: 10. a reflecting cone mirror; 11. mounting a plate; 12. an installation body; 121. a columnar connecting portion; 122. a tapered mounting portion; 13. a conical reflector; 20. a transparent glass tube; 30. packaging the shell; 31. an annular plate; 32. an annular base plate; 40. a photodetector; 50. an optical filter; 60. a convex lens.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Moreover, the technical solutions in the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides an all-round photoelectric detector.

As shown in fig. 1-2, the embodiment of the present invention provides an omnidirectional photodetector, which includes a reflective cone mirror 10, a transparent glass tube 20, a photodetector 40, a convex lens 60, a filter 50, and a package housing 30, wherein the filter 50 is disposed between the photodetector 40 and the convex lens 60.

The reflecting cone mirror 10 is used for refracting and reflecting light rays irradiated on a reflecting surface of the reflecting cone mirror; the transparent glass tube 20 is used for protecting other optical devices, the package housing 30 is in a cylindrical shape, and the package housing 30 is a hollow housing with openings at two ends, that is, the transparent glass tube 20 is in a ring shape. The convex lens 60 is used for focusing light, the optical filter 50 is used for preventing light with other wavelengths except for the measuring wavelength from passing through, and the photoelectric detector 40 is a conventional plane receiving type photosensitive device, such as a PIN photoelectric detector 40, a photodiode and the like.

Therefore, after the light irradiates the reflective conical mirror 10 through the transparent glass tube 20, the light is refracted and then irradiated onto the convex lens 60, and then focused and then set on the photoelectric detector 40, and the light directly irradiating the convex lens 60 is also focused and then irradiated onto the photoelectric detector 40, so that all the light projected onto the convex lens 60 is focused, and thus more light energy can be received. Compare in prior art can further solve the problem that can not all-round received light.

Referring to fig. 4, the light ray indicated by reference numeral 1 is projected from an oblique upper direction, and the light ray directly irradiates the convex lens 60 after passing through the transparent glass cover. The light ray shown by reference numeral 2 is projected in the horizontal direction, and the light ray is irradiated to the conical mirror 13 to be refracted and then projected vertically onto the convex lens 60. The light ray indicated by reference numeral 3 is projected obliquely from below, and after being reflected by the cone-shaped mirror 13, the light ray is refracted in the mirror direction and then projected at a certain angle onto the convex lens 60. All light projected onto the convex lens 60 will be focused and thus receive more light energy. The focused light is further conditioned by the optical filter 50, only the light with the wavelength of the measurement light is passed through, the light with other wavelengths is prevented from passing through, and finally the energy of the optical signal projected on the photoelectric detector 40 is concentrated and the signal light of the dry projection light is filtered.

This all-round photoelectric detector is the column setting, can receive all light of a week 360 degrees within ranges, has the ability of all-round receipt, and all subassemblies of this detector all are the planar mounting of axle centering, so assemble simpler, change the realization.

All components of the detector are installed on the plane with the axes being centered, so the detector is simpler to assemble and easier to realize.

In addition, because only one photosensitive device is adopted, namely light directly irradiates the surface of the detector, the signal error existing when a plurality of detector arrays are used is solved. That is, when a plurality of detector arrays are used, a certain gap exists between two adjacent detectors, and when the laser beam moves from one detector to another adjacent detector, a signal interval of time t exists, which brings signal errors to the measurement. In the application, the measured signals are continuous, and for a system which measures in the time that light passes through the detector, the omnibearing detector can avoid errors such as signal collapse, light boundary and the like existing in the array detector.

Wherein, reflection cone mirror 10 includes mounting panel 11, installation body 12 and locates cone mirror 13 on the installation body 12 outer wall surface, the shutoff of mounting panel 11 the tip of transparent glass pipe 20, installation body 12 with mounting panel 11 is connected and is located inside the transparent glass pipe 20. The mounting plate 11 has a diameter larger than the inner diameter of the transparent glass tube 20 so that the mounting plate 11 can be disposed to cover the end of the transparent glass tube 20.

Further, the mounting body 12 includes a cylindrical connection portion 121 and a tapered mounting portion 122 connected to each other, the cylindrical connection portion 121 is connected between the mounting plate 11 and the tapered mounting portion 122, an outer peripheral wall of the cylindrical connection portion 121 is in contact connection with an inner wall surface of the transparent glass tube 20, and the tapered reflector 13 is mounted on the tapered mounting portion 122. In this embodiment, the columnar connecting portion 121 is abutted against the inner wall surface of the transparent glass tube 20, so that the stability of the connection can be improved and the shaking can be prevented.

In addition, referring to fig. 3, a blocking plate is protruded from an inner wall surface of the package housing 30, and the blocking plate is connected to an end of the transparent glass tube 20. The blocking plate comprises a ring-shaped plate 31 and a ring-shaped bottom plate 32, two sides of the ring-shaped plate 31 are respectively connected with the inner wall surface of the packaging shell 30 and the outer wall surface of the transparent glass tube 20, the ring-shaped bottom plate 32 is arranged in a protruding mode from the bottom end of the ring-shaped plate 31 in the axial direction of the packaging shell 30, and the bottom end of the transparent glass tube 20 is connected with the ring-shaped bottom plate 32. In this embodiment, the transparent glass tube 20 is stabilized by the barrier plate to prevent radial run-out.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides an all-round photoelectric detector, its characterized in that, all-round photoelectric detector includes reflection cone mirror, transparent glass pipe, photoelectric detector, convex lens and encapsulation casing, the reflection cone mirror with the encapsulation casing is established respectively the both ends of transparent glass pipe, photoelectric detector with convex lens all locates in the transparent glass pipe, convex lens sets up photoelectric detector top protrusion in the top of encapsulation casing.

2. The omnidirectional photodetector of claim 1, wherein the reflecting cone comprises a mounting plate, a mounting body, and a cone-shaped reflecting mirror disposed on an outer wall surface of the mounting body, wherein the mounting plate seals an end of the transparent glass tube, and the mounting body is connected to the mounting plate and is located inside the transparent glass tube.

3. The all-round photoelectric detector of claim 2, characterized in that, the installation body includes column connecting portion and toper installation department that are connected, column connecting portion connect between the mounting panel with the toper installation department, the periphery wall of column connecting portion with the internal face of transparent glass pipe is contradicted and is connected, the cone-shaped speculum is installed on the toper installation department.

4. The all-directional photoelectric detector according to claim 3, wherein a blocking plate is protruded from an inner wall surface of the package housing, and the blocking plate is connected to an end of the transparent glass tube.

5. The omnidirectional photodetector of claim 4, wherein the blocking plate comprises a ring-shaped plate and a ring-shaped bottom plate, two sides of the ring-shaped plate are respectively connected to the inner wall surface of the package housing and the outer wall surface of the transparent glass tube, the ring-shaped bottom plate is protruded from the bottom end of the ring-shaped plate along the axial direction of the package housing, and the bottom end of the transparent glass tube is connected to the ring-shaped bottom plate.

6. The omni-directional photodetector of any one of claims 1-5, further comprising an optical filter disposed between the photodetector and the convex lens.