CN220404190U

CN220404190U - Dental imaging plate scanner and scanning light path structure thereof

Info

Publication number: CN220404190U
Application number: CN202322278888.2U
Authority: CN
Inventors: 姚芳精; 吴坤优; 张阳; 宾士友
Original assignee: Guilin Woodpecker Medical Instruments Co Ltd
Current assignee: Guilin Woodpecker Medical Instruments Co Ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-01-30
Anticipated expiration: 2033-08-24

Abstract

The utility model provides a dental imaging plate scanner and a scanning light path structure thereof, wherein the scanning light path structure comprises a laser and a reflecting component, and the laser is used for outputting laser; the reflection assembly comprises a rotary driving piece and at least one first reflection mirror, wherein the first reflection mirror is connected with the rotary driving piece so as to rotate at a constant speed by taking a first axis as a rotation center under the driving of the rotary driving piece, and the first reflection mirror is provided with a reflection surface for reflecting laser emitted by the laser. The laser emitted by the laser is reflected to form a scanning light path in a mode that the rotary driving piece drives the first reflecting mirror to rotate, and when the rotary driving piece rotates at a constant speed, the scanning light path can move at a constant speed on the dental film, so that the stability of the scanning speed can be improved, and the imaging quality of the dental film is improved.

Description

Dental imaging plate scanner and scanning light path structure thereof

Technical Field

The utility model relates to the technical field of dental medical instruments, in particular to a dental imaging plate scanner and a scanning light path structure thereof.

Background

The dental imaging plate is used for scanning the inside and surrounding tissues of the teeth by using a scanner in the dental treatment process, the acquired information is stored in the dental imaging plate, the information in the dental imaging plate is required to be extracted by using the dental imaging plate scanner after the information is acquired, and the dental imaging plate, namely the dental film, is required to be scanned by using light rays emitted by laser. In the prior art, a mode that a mirror is driven by a mirror motor to swing reciprocally in a small amplitude is generally adopted to reflect laser emitted by a laser onto a dental film, so as to scan the dental film, for example, chinese patent application publication No. CN110244453a discloses a dental film scanner, and a laser scanning mechanism of the dental film scanner drives a high-frequency mirror to rotate in a range of 15 ° by the mirror motor to reflect and scan the laser into a width range of the whole tray, so as to form a laser line and comprehensively scan the width direction of a phosphor film. However, the mode that the mirror motor drives the mirror to swing reciprocally in a small amplitude is adopted to reflect the laser emitted by the laser to the dental film, the scanning speed of a scanning light path of the mirror reflected to the dental film on the dental film is unstable, the image quality of final imaging is affected, and the imaging quality of the dental film obtained by scanning is reduced.

Disclosure of Invention

In order to solve the technical problems in the prior art, it is necessary to provide a scanning light path structure of a dental imaging plate scanner, which can improve the stability of the scanning speed and the imaging quality of the dental film.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the scanning light path structure of the dental imaging plate scanner comprises a laser and a reflecting component, wherein the laser is used for outputting laser; the reflection assembly comprises a rotary driving piece and at least one first reflection mirror, wherein the first reflection mirror is connected with the rotary driving piece so as to rotate at a constant speed by taking a first axis as a rotation center under the driving of the rotary driving piece, and the first reflection mirror is provided with a reflection surface for reflecting laser emitted by the laser.

Further, the reflecting surface is a plane, an included angle is formed between the reflecting surface and the first axis, and the included angle formed between the reflecting surface and the first axis is greater than 0 ° and less than 90 °.

Further, the optical path of the laser incident on the reflecting surface is parallel to the first axis, and an included angle formed by the reflecting surface and the first axis is 45 degrees.

Further, the first reflecting mirror is connected with the rotary driving piece through a mirror seat, the reflecting assembly comprises a plurality of first reflecting mirrors, and the plurality of first reflecting mirrors are fixed on the peripheral surface of the mirror seat at uniform intervals around the first axis.

Further, the scanning light path structure further includes a second reflecting mirror, where the second reflecting mirror is disposed between the laser and the first reflecting mirror, and the second reflecting mirror can reflect laser output by the laser, so as to form a first light path between the second reflecting mirror and an output end of the laser and a second light path between the second reflecting mirror and the first reflecting mirror.

Further, the first light path is parallel to the horizontal direction, the included angle between the second reflecting mirror and the horizontal plane is 45 degrees, the second light path and the first axis are parallel to the vertical direction, and the included angle between the reflecting surface and the first axis is 45 degrees.

Further, the scanning light path structure of the dental imaging plate scanner further comprises a fixed cylinder, the laser is arranged at one end of the fixed cylinder, the second reflecting mirror is fixed at one end of the fixed cylinder away from the laser, one end of the fixed cylinder away from the laser is provided with a light emitting hole for the laser of the laser to emit to the second reflecting mirror, and the light emitting hole is positioned between the laser and the second reflecting mirror.

Further, one end of the fixed cylinder, which is far away from the laser, is concavely provided with a mounting groove, and the second reflecting mirror is fixed in the mounting groove.

Further, the scanning light path structure of the dental imaging plate scanner comprises a mounting base, and the fixed cylinder and the rotary driving piece are both fixed on the mounting base.

The utility model further provides a dental imaging plate scanner comprising the scanning light path structure of the dental imaging plate scanner.

By adopting the technical scheme, the utility model has the following beneficial effects:

according to the scanning light path structure of the dental imaging plate scanner, the first reflecting mirror is driven to rotate by the rotary driving piece to reflect laser emitted by the laser to form the scanning light path, when the rotary driving piece rotates at a constant speed, the scanning light path can move at a constant speed on the dental film, so that the stability of the scanning speed can be improved, and the improvement of the imaging quality of the dental film is facilitated.

Drawings

FIG. 1 is a schematic view of a dental imaging scanner according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a dental imaging scanner according to a preferred embodiment of the present utility model with portions of the base, photomultiplier tube, and guide housing removed;

FIG. 3 is a schematic view of the structure of the stationary barrel of FIG. 2;

description of the main reference signs

100. A dental imaging plate scanner; 20. scanning an optical path structure; 21. a mounting base; 23. a laser; 25. a reflective assembly; 251. a rotary driving member; 252. a lens base; 253. an end face; 254. a peripheral surface; 255. a first mirror; 256. a reflecting surface; 26. a second mirror; 27. a fixed cylinder; 271. a mounting groove; 272. a light outlet hole; 30. a first axis; 40. a first optical path; 50. a second light path; 60. scanning an optical path; 70. a photomultiplier tube; 80. and a guide case.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "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 on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a dental imaging plate scanner 100 according to a preferred embodiment of the present utility model includes a scanning optical path structure 20, where the scanning optical path structure 20 is configured to generate laser light for scanning a dental imaging plate, i.e. a dental film (not shown), and reflect the generated laser light onto the dental film to scan the dental film. The scanning light path structure 20 includes a laser 23 and a reflection assembly 25, the laser 23 is used for outputting laser light, and the reflection assembly 25 is disposed near an output end of the laser 23 to reflect the laser light output by the laser 23 to the dental film.

The reflecting assembly 25 includes a rotary driving member 251 and at least one first reflecting mirror 255. In the present embodiment, the rotation driving member 251 is a motor. The first mirror 255 is connected to the rotation driving member 251 so as to rotate at a constant speed about a first axis 30 as a rotation center under the driving of the rotation driving member 251. In the present embodiment, the first mirror 255 is connected to the rotation driving member 251 through the mirror base 252. The lens base 252 has a substantially block-shaped structure and includes two opposite end surfaces 253 and a peripheral surface 254 connecting the two end surfaces 253, wherein a substantially central position of one end surface 253 is fixedly connected with a motor shaft (not shown) of the rotary driving member 251, and the first axis 30 is a central axis of the motor shaft of the rotary driving member 251.

The first reflecting mirror 255 is mounted on the mirror base 252, and in the present embodiment, the first reflecting mirror 255 is fixed on the peripheral surface 254 of the mirror base 252. The first mirror 255 has a reflecting surface 256 for reflecting the laser light emitted from the laser 23, and the reflecting surface 256 faces the laser light of the laser 23 to reflect the laser light emitted from the laser 23 during rotation with the mirror base 252. In the present embodiment, the reflecting surface 256 is planar and forms an included angle with the first axis 30, and the included angle θ formed between the reflecting surface 256 and the first axis 30 satisfies 0< θ <90 °. In the present embodiment, the optical path of the laser light incident on the reflection surface 256 is parallel to the first axis 30, and the reflection surface 256 forms an angle of 45 ° with the first axis 30, so that the optical path reflected by the reflection surface 256 can be perpendicular to the first axis 30. In addition, the reflection assembly 25 of the present embodiment may include a plurality of first mirrors 255, and the plurality of first mirrors 255 are fixed on the peripheral surface 254 of the mirror base 252 at uniform intervals around the first axis 30. In the present embodiment, the reflecting assembly 25 includes six first reflecting mirrors 255, and it is understood that the number of the first reflecting mirrors 255 may be set to other numbers, such as one block, according to actual needs, which is not limited by the present utility model.

In the present embodiment, the scanning optical path structure 20 further includes a second mirror 26, where the second mirror 26 is disposed between the laser 23 and the first mirror 255, and the second mirror 26 is capable of reflecting the laser light output by the laser 23, so as to form a first optical path 40 between the second mirror 26 and the output end of the laser 23 and a second optical path 50 between the second mirror 26 and the first mirror 255. In the present embodiment, the second optical path 50 is parallel to the first axis 30, and the second optical path 50 and the first axis 30 are both parallel to the vertical direction; the second reflecting mirror 26 has an angle of 45 ° with respect to the horizontal plane, the first light path 40 and the second light path 50 are perpendicular to each other, and the first light path 40 is parallel to the horizontal direction. The structure can enable laser to vertically enter the first reflecting mirror 255, and enable the scanning light path 60 obtained after reflection by the first reflecting mirror 255 to be horizontally arranged, namely, a horizontal light area can be formed for laser scanning of the dental film, and the use is more convenient.

In the present embodiment, the scanning optical path structure 20 further includes a fixing tube 27 for fixing the laser 23, and the fixing tube 27 of the present embodiment has a substantially hollow cylindrical shape. The laser 23 is mounted on one end of the fixed barrel 27, and the output end of the laser 23 is disposed toward one end of the fixed barrel 27 away from the laser 23. The second reflecting mirror 26 is fixed to an end of the fixing cylinder 27 away from the laser 23, specifically, an end of the fixing cylinder 27 away from the laser 23 is concavely provided to form a mounting groove 271, and the second reflecting mirror 26 is fixed in the mounting groove 271. The end of the fixed cylinder 27 away from the laser 23 is provided with a light outlet 272 for emitting the laser light of the laser 23 to the second reflecting mirror 26, and the light outlet 272 is located between the laser 23 and the second reflecting mirror 26. The scanning optical path structure 20 further includes a mounting base 21, and a motor main body (not shown) of the rotary driving member 251 and the fixed cylinder 27 are fixed to the mounting base 21.

When the scanning optical path structure 20 of the dental imaging plate scanner 100 of the present embodiment is used, the laser light emitted by the laser 23 is emitted along the axial direction of the fixed cylinder 27 and is incident to the second mirror 26 via the light emitting hole 272 to form a horizontal first optical path 40, and then the first optical path 40 is reflected by the second mirror 26 to the first mirror 255 to form a second optical path 50 parallel to the first axis 30 and vertically arranged. The first reflecting mirror 255 reflects the incident second light path 50 to form a horizontal scanning light path 60, and meanwhile, the rotary driving member 251 drives the first reflecting mirror 255 to rotate at a constant speed, so that laser is reflected and scanned to the width range of the whole dental film through the rotary first reflecting mirror 255, thereby forming laser lines and comprehensively scanning the width direction of the dental film. In addition, during one rotation of the rotation driving member 251, the dental film may be scanned a plurality of times by the laser light reflected by the plurality of first reflecting mirrors 255.

According to the scanning light path structure 20 of the dental imaging plate scanner 100, the first reflecting mirror 255 is driven to rotate by the rotary driving member 251 to reflect the laser emitted by the laser 23 to form the scanning light path 60, and when the rotary driving member 251 rotates at a constant speed, the scanning light path 60 can move at a constant speed on the dental film, so that the stability of the scanning speed can be improved, and the improvement of the imaging quality of the dental film is facilitated.

The scanning light path structure 20 of the dental imaging plate scanner 100 includes a plurality of first reflectors 255 uniformly spaced along the circumferential direction of the lens base 252, and in the process of rotating the rotation driving member 251 for one revolution, the dental film can be scanned for a plurality of times by the laser reflected by the plurality of first reflectors 255, so that the scanning imaging efficiency is greatly improved.

The scanning light path structure 20 of the dental imaging plate scanner 100 further comprises the second reflecting mirror 26, and the light path of the laser light output by the laser 23 can be changed by arranging the second reflecting mirror 26, so that the laser 23 can be arranged at a required position, and the space of the dental imaging plate scanner 100 is utilized more reasonably, so that the structural design of the dental imaging plate scanner 100 is more reasonable.

It will be appreciated that the dental imaging plate scanner 100 may further include other structures, such as a photomultiplier tube 70 fixed on the mounting base 21 for performing photoelectric conversion, and a guide housing 80 fixed on the mounting base 21 for collecting the optical signals excited after the scanning light path 60 scans the dental film and guiding the optical signals to the photomultiplier tube 70, which belong to the prior art, and are not repeated herein for brevity.

It will be appreciated that the laser beam emitted by the laser 23, the first optical path 40 and the scanning optical path 60 are not necessarily horizontal, the angles between the first mirror 255, the second mirror 26 and the horizontal or vertical direction are not necessarily 45 °, and the second optical path 50 and the first axis 30 are not necessarily vertical, which can be adjusted accordingly according to the placement position of the dental film, so long as the scanning optical path 60 is ensured to scan the dental film.

It is understood that the mounting base 21 may be omitted, and at this time, the rotary driving member 251 may be fixed to the fixed cylinder 27 or the like.

It is to be understood that the shapes of the fixed cylinder 27, the lens holder 252, etc. are not limited to the present embodiment, and may be adjusted according to actual needs. It is understood that in other embodiments, the mirror base 252 may be omitted, and the first mirror 255 may be directly connected to the rotation driving member 251.

It will be appreciated that the second mirror 26 may be omitted, and the laser 23 may be disposed parallel to the first axis 30 such that the laser light emitted therefrom is parallel to the first axis 30, and the second mirror 26 may be fixed at other positions, such as on the mounting base 21, etc. The number of the second reflecting mirrors 26 may be set to two or more so as to reflect the laser light emitted from the laser 23 to the first reflecting mirror 255 by multiple reflections.

In the present embodiment, the lens base 252 is directly connected to the motor shaft of the rotation driving member 251, and it is understood that in other embodiments, the rotation driving member 251 may further include a transmission mechanism such as a gear box connected to the motor, and the lens base 252 is connected to the gear box when mounted.

The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.

Claims

1. The scanning light path structure of the dental imaging plate scanner is characterized by comprising a laser and a reflecting component, wherein the laser is used for outputting laser; the reflection assembly comprises a rotary driving piece and at least one first reflection mirror, wherein the first reflection mirror is connected with the rotary driving piece so as to rotate at a constant speed by taking a first axis as a rotation center under the driving of the rotary driving piece, and the first reflection mirror is provided with a reflection surface for reflecting laser emitted by the laser.

2. A scanning light path structure of a dental imaging scanner as in claim 1, wherein the reflecting surface is planar and forms an angle with the first axis, the angle formed by the reflecting surface and the first axis being greater than 0 ° and less than 90 °.

3. A scanning optical path structure of a dental imaging scanner according to claim 2, wherein an optical path of the laser light incident on the reflecting surface is parallel to the first axis, and an angle formed by the reflecting surface and the first axis is 45 °.

4. The scanning optical path structure of a dental imaging scanner of claim 1, wherein the first mirror is coupled to the rotary driving member via a mirror mount, and the reflecting assembly comprises a plurality of first mirrors, the plurality of first mirrors being fixed to a peripheral surface of the mirror mount at regular intervals around the first axis.

5. The scanning optical path structure of a dental imaging plate scanner of claim 1, further comprising a second mirror disposed between the laser and the first mirror, the second mirror being capable of reflecting laser light output by the laser to form a first optical path between the second mirror and an output of the laser and a second optical path between the second mirror and the first mirror.

6. The structure of claim 5, wherein the first light path is parallel to a horizontal direction, the second reflecting mirror forms an angle of 45 ° with the horizontal plane, the second light path and the first axis are both parallel to a vertical direction, and the reflecting surface forms an angle of 45 ° with the first axis.

7. The scanning light path structure of claim 5, wherein the scanning light path structure of the dental imaging plate scanner further comprises a fixing barrel, the laser is arranged at one end of the fixing barrel, the second reflecting mirror is fixed at one end of the fixing barrel far away from the laser, one end of the fixing barrel far away from the laser is provided with a light outlet hole for the laser of the laser to irradiate to the second reflecting mirror, and the light outlet hole is positioned between the laser and the second reflecting mirror.

8. The scanning optical path structure of claim 7, wherein the end of the fixed cylinder far away from the laser is concavely provided with a mounting groove, and the second reflecting mirror is fixed in the mounting groove.

9. The scanning optical path structure of a dental imaging scanner of claim 7, wherein the scanning optical path structure of the dental imaging scanner includes a mounting base, the stationary barrel and the rotary drive being secured to the mounting base.

10. A dental imaging plate scanner comprising a scanning light path structure of a dental imaging plate scanner according to any of claims 1-9.