CN220192976U - Oral cavity observer - Google Patents

Abstract

The embodiment of the application discloses an oral cavity observer, which comprises a main body, a camera, a first light source, a second light source, a light source controller, a mode switcher and an optical filter, wherein the camera is arranged on the main body; the first light source is arranged on the main body; the second light source is arranged on the main body; the light source controller is provided with a first working mode for enabling the first light source to be started and a second working mode for enabling the second light source to be started, and is arranged on the main body; the mode switcher is provided with a first state and a second state, wherein in the first state, the mode switcher triggers a first working mode, and the optical filter shields the camera; in the second state, the mode switcher triggers a second working mode, and the optical filter leaves the camera. The oral cavity observer can conveniently switch between a common image function and a dental plaque detection function by switching between the first state and the second state through the operation mode switcher.

Description

Oral cavity observer

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an oral cavity observer.

Background

The Chinese patent publication No. CN216293997U discloses an oral cavity observer which is provided with a camera and an illuminating lamp and can realize the function of photographing the oral cavity. The Chinese patent publication No. CN209285795U discloses an intelligent dental plaque observer which is provided with a camera, a purple light lamp and an optical filter and can be used for observing dental plaque. However, the oral cavity observers are single-function.

Disclosure of Invention

The embodiment of the application provides a multifunctional oral cavity observer.

Embodiments of the present application provide an oral cavity observer, the oral cavity observer comprising,

a main body;

the camera is arranged on the main body;

a first light source for illuminating a tooth surface and capable of producing fluorescence for characterization and observation of dental plaque, the first light source being provided to the main body;

a second light source for illuminating the tooth surface, the second light source being disposed on the main body;

the light source controller is provided with a first working mode for enabling the first light source to be started and a second working mode for enabling the second light source to be started, and is arranged on the main body and electrically connected with the first light source and the second light source respectively;

a mode switcher in control connection with the light source controller, the mode switcher having a first state and a second state switchable with each other; the method comprises the steps of,

the optical filter is used for allowing the fluorescence to pass through and is in control connection with the mode switcher;

in the first state, the mode switcher triggers the first working mode, and the optical filter shields the camera;

in the second state, the mode switcher triggers the second working mode, and the optical filter leaves the camera.

In some embodiments, the mode switch is slidably coupled to the body in a first direction; the light source controller comprises a trigger part which is connected with the main body in a sliding manner along the first direction, and the trigger part is positioned on the movement track of the mode switcher.

In some embodiments, the mode switch has a first sliding hole extending along the first direction, the trigger portion is slidably disposed in the first sliding hole, and H1-h2=l1-L2, where H1 is a maximum moving distance of the mode switch in the first direction, H2 is a maximum moving distance of the trigger portion in the first direction, L1 is a length of the first sliding hole in the first direction, and L2 is a length of the trigger portion in the first direction.

In some embodiments, the oral cavity viewer further comprises a sliding key, the sliding key is in sliding connection with the main body in the first direction, the sliding key is provided with a first buckling part, the mode switcher is provided with a second buckling part, and the first buckling part and the second buckling part are in buckling connection.

In some embodiments, the sliding key is in friction fit with the main body, and at least one of the sliding key and the main body is provided with a damping body capable of increasing friction force to position the sliding key.

In some embodiments, the oral cavity viewer further comprises a pressing key and a controller, the mode switcher is provided with a second through hole, the pressing key penetrates through the second through hole and is matched with the controller, the controller is arranged on the main body, the controller is electrically connected with the light source controller and the camera, and the length of the second through hole in the first direction is larger than the maximum moving distance of the mode switcher in the first direction.

In some embodiments, a portion of the mode switcher connected to the optical filter is made of a light-transmitting material; or, the mode switcher is made of a light-transmitting material and integrally formed.

In some embodiments, the first light source includes a plurality of first light source bodies, and in the first position, the first light source bodies are uniformly distributed on the periphery of the optical filter; and/or the second light source comprises a plurality of second light source bodies, and all the second light source bodies are arranged around the camera.

In some embodiments, the body includes a housing and a bracket fixed inside the housing, the oral cavity viewer further includes a front side circuit board and a rear side circuit board, the front side circuit board is fixed on a front surface of the bracket, the rear side circuit board is fixed on a rear surface of the bracket, the front side circuit board has a slot corresponding to the camera, the first light source is fixed on the front side circuit board, the bracket has a fifth through hole penetrating through the front surface and the rear surface, an orthographic projection of the fifth through hole on the front side circuit board is located inside the slot, the first light source is located on a periphery of the fifth through hole, and the camera is fixed on the rear side circuit board and located inside the fifth through hole.

In some embodiments, the main body includes a housing and a bracket fixed inside the housing, the bracket is provided with ribs distributed at intervals in a second direction, the second direction is perpendicular to the first direction, the ribs extend along the first direction, a guide groove is formed between two ribs, and the mode switcher is disposed in the guide groove and is in sliding fit with the ribs.

In some embodiments, the bracket is further provided with a third fastening part, the third fastening part is located between the two protruding edges, the mode switcher is correspondingly provided with a fourth fastening part, and the third fastening part and the fourth fastening part are fastened and connected; one of the third buckling part and the fourth buckling part is a limiting protrusion, the other one of the third buckling part and the fourth buckling part is a limiting hole, the limiting hole extends along the first direction, the limiting protrusion is slidably arranged in the limiting hole, and in the first direction, the length of the limiting hole is larger than that of the first sliding hole.

In some embodiments, the main body includes a housing and a bracket fixed inside the housing, one of the mode switch and the bracket is provided with a stopper, the other of the mode switch and the bracket is provided with a stopper insertion hole extending in the first direction, and the stopper is slidably provided in the stopper insertion hole.

In some embodiments, the first fastening portion is a protrusion, the protruding end portion has a first back-off, the second fastening portion is a third through hole, the third through hole includes a first hole and a second hole that are penetrated, a step surface is formed at a connection position of the first hole and the second hole, the protrusion is matched with the first hole, and the first back-off is matched with the second hole and fastens the step surface.

In some embodiments, the third through hole has an upper hole side and a lower hole side disposed opposite to each other in the first direction, the upper hole side is provided with a first boss extending in the first direction, and the lower hole side is provided with a second boss extending in a second direction perpendicular to the first direction.

The beneficial effects are that: the oral cavity observer can conveniently switch between a common image function and a dental plaque detection function by switching between the first state and the second state through the operation mode switcher.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an oral cavity observer according to an embodiment of the present application;

FIG. 2 is a schematic front view of an oral cavity viewer provided in an embodiment of the present application;

FIG. 3 is an exploded perspective view of an oral cavity viewer provided in an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view taken along the direction A-A of FIG. 2;

FIGS. 5 and 6 are partial enlarged schematic views of the points P and Q in FIG. 4, respectively;

fig. 7 is a schematic perspective view of a sliding key of an oral cavity observer according to an embodiment of the present application;

fig. 8 and 9 are schematic perspective views of two different view angles of a mode switcher of an oral cavity observer according to an embodiment of the present application;

fig. 10 is a schematic perspective view of a bracket of an oral cavity observer according to an embodiment of the present application;

fig. 11 is a schematic perspective view of a pressing key of an oral cavity observer according to an embodiment of the present application;

fig. 12 is a schematic perspective view of a housing of an oral cavity observer provided in an embodiment of the present application;

fig. 13 is a schematic cross-sectional view of the housing shown in fig. 12.

Reference numerals illustrate:

100. an oral cavity observer; 1. a main body; 11. a housing; 111. a second sliding hole; 112. a first accommodation hole; 113. a recess, 114, a second receiving hole; 115. a mounting hole; 12. a bracket; 121. a rib; 122. a guide groove; 123. a third fastening part; 124. a stop block jack; 1241. an upper limit edge; 1242. a lower limit edge; 125. a fourth through hole; 126. a second back-off; 13. a light transmitting sheet; 2. a camera; 3. a first light source; 31. a first light source body; 4. a light source controller; 41. a trigger part; 5. a light filter; 6. a mode switcher; 61. a switch body; 611. a first sliding hole; 6111. a first upper aperture edge; 6112. a first lower aperture edge; 612. a first through hole; 613. a second through hole; 614. a fourth fastening part; 62. a reinforcing part; 621. a first boss; 622. a second boss; 63. a connection part; 631. a third through hole; 64. a stop block; 8. a sliding key; 81. a first fastening part; 82. a first back-off; 83. a base; 831. a first rear surface; 832. a first front surface; 84. a protrusion; 9. pressing a key; 91. a pressing part; 92. a joystick; 93. a buckling claw; 10. and a controller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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 should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

As shown in fig. 1 to 13, an oral cavity observer 100 includes a main body 1, a camera 2, a first light source 3, a second light source, a light source controller 4, an optical filter 5, and a mode switch 6. The camera 2 can be used to obtain images of the user's mouth, the camera 2 being provided to the body 1. The first light source 3 is capable of illuminating the tooth surface and generating fluorescence for characterization and observation of dental plaque on the tooth, and the first light source 3 is provided to the main body 1. The second light source is capable of illuminating the tooth surface, and is provided to the main body 1. The light source controller 4 has a first operation mode in which only the first light source 3 is turned on and a second operation mode in which only the second light source is turned on, the light source controller 4 is provided in the main body 1, and the light source controller 4 is electrically connected to the first light source 3 and the second light source, respectively. The optical filter 5 is used for passing fluorescence, the optical filter 5 can move relative to the main body 1, and the optical filter 5 can shield the camera 2 and leave the camera 2 in a controlled manner. The mode switcher 6 is in control connection with the light source controller 4 and the optical filter 5, the mode switcher 6 is provided with a first state and a second state which can be mutually switched, when the mode switcher 6 is switched to the first state, a first working mode is triggered to enable only the first light source 3 to be started, and the optical filter 5 is enabled to shield the camera 2; when the mode switch 6 is switched to the second state, the second operation mode is triggered to switch on only the second light source, and the optical filter 5 is separated from the camera 2.

In the first state, the mode switch 6 is in the plaque detection mode in which plaque on the tooth surface can be detected by the oral cavity observer 100. In the second state, the oral cavity observer 100 is in the normal image setting mode, the second light source serving as the normal light source can illuminate the oral cavity, and the camera 2 can photograph the teeth. The oral cavity observer 100 can be switched between the normal imaging function and the plaque detection function conveniently by switching between the first state and the second state by operating the mode switch 6.

The mode switch 6 is in control connection with the light source controller 4 and the optical filter 5, and the control connection may be a mechanical connection or an electrical signal connection. When mechanically connected, the mode switcher 6 can be movably connected with the main body 1 and can reciprocate between a first position and a second position relative to the main body 1, and when the mode switcher 6 moves to the first position, the mode switcher is in a first working mode; when the mode switch 6 is moved to the second position, it is in the second mode of operation. The mode switch 6 is linearly movable with respect to the main body 1, and in the first direction XX, the mode switch 6 is movable up and down, for example, when the mode switch 6 is moved to a first position above, the light source controller 4 is switched to a first operation mode; when the mode switch 6 is moved to the second position located below, the light source controller 4 switches to the second operation mode. The mode switch 6 may also be turned relative to the main body 1, for example, when the mode switch 6 is turned to the first position, the light source controller 4 is switched to the first operation mode; when the mode switch 6 is rotated to the second position, the light source controller 4 switches to the second operation mode. When the electric signal connection is adopted, the mode switcher 6 can be a push button, the switch between the first working mode and the second working mode and the switch of the position of the optical filter 5 can be realized by pushing the push button, and the push button can be a mechanical push button or a touch push button.

The first light source 3 may emit blue light, ultraviolet light or other light in a wavelength band suitable for plaque detection, and for example, the first light source 3 may emit light with a wavelength of 405nm, under the irradiation of the light in the wavelength band, the fluorescence spectrum generated by the excitation of normal tooth tissue is mainly distributed in the blue-green wavelength band, and the fluorescence spectrum generated by the excitation of dental plaque is mainly distributed in the red wavelength band. The filter 5 is capable of filtering harmful light, which may allow light in the range of 364nm to 830nm to pass through, and the filter 5 may allow light in the range of 464nm or more to pass through, so that normal tooth tissue appears white as seen by the naked eye in the captured image, and dental plaque tissue appears red in the captured image, for example; if this special filter 5 is not used, the tooth tissue in the acquired image appears purple overall.

In some embodiments, the mode switch 6 is slidably connected to the main body 1, the mode switch 6 being movable up and down in the first direction XX relative to the main body 1. The filter 5 may be fixed on top of the mode switch 6. The light source controller 4 includes a trigger portion 41, the trigger portion 41 being slidably connected to the main body 1, the trigger portion 41 being movable up and down in the first direction XX with respect to the main body 1. The mode switch 6 is reciprocally movable between a first position corresponding to a first state of the mode switch 6 and a second position corresponding to a second state of the mode switch 6. The trigger part 41 is capable of reciprocating between a third position corresponding to the first operation mode of the light source controller 4 and a fourth position corresponding to the second operation mode of the light source controller 4, the distance between the first position and the second position is larger than the distance between the third position and the fourth position in the first direction XX, and the trigger part 41 is located on the movement track of the mode switch 6.

Initially, the mode switch 6 may be in the second position, the trigger portion 41 may be in the fourth position, and when the mode switch 6 is moved up along the first direction XX, the mode switch 6 moves up to the third position with the trigger portion 41, so as to trigger the first working mode, so that the first light source 3 is turned on and the optical filter 5 shields the camera 2. When the second operation mode is required to be switched, the mode switch 6 is shifted downwards along the first direction XX, the mode switch 6 is returned to the fourth position with the triggering part 41, and the second operation mode is triggered, so that the second light source is started and the optical filter 5 is separated from the camera 2. During dial-up of the mode switch 6, the mode switch 6 may have a free travel during which the mode switch 6 is not in contact with the trigger portion 41. The mode switch 6 may also have a blank stroke during the dial-down of the mode switch 6.

Referring to fig. 3, 8 and 9 in combination, the mode switch 6 includes a switch body 61, where the switch body 61 has a first sliding hole 611 extending along a first direction XX, and the first sliding hole 611 may be a bar-shaped hole having a certain length in the first direction XX, and in the first direction XX, the first sliding hole 611 may have a first upper hole edge 6111 and a first lower hole edge 6112 disposed opposite to each other, and the first upper hole edge 6111 may be located above the first lower hole edge 6112. The trigger portion 41 is slidably disposed in the first slide hole 611. In the first direction XX, the maximum movement distance of the mode switch 6 is H1, the maximum movement distance of the trigger portion 41 is H2, the length of the first sliding hole 611 is L1, the length of the trigger portion 41 is L2, and h1—h2=l1—l2. With this arrangement, it is ensured that the maximum moving distance H1 of the mode switch 6 is greater than the maximum moving distance H2 of the trigger portion 41, and by making the length L1 of the first sliding hole 611 greater than the length L2 of the trigger portion 41, distance compensation can be achieved.

In the process of toggling the mode switch 6 upward in the first direction XX, the mode switch 6 can push the trigger portion 41 to move upward after the first lower hole edge 6112 moves to abut the trigger portion 41. In the process of downwards shifting the mode switch 6 along the first direction XX, after the first upper hole edge 6111 moves to abut against the trigger part 41, the mode switch 6 can push the trigger part 41 to downwards move. As for the first sliding hole 611, it may be a through hole penetrating the switch body 61 back and forth in a third direction ZZ, which may be perpendicular to the first direction XX; the first sliding hole 611 may also be a blind hole having a depth in the third direction ZZ.

Referring to fig. 3, fig. 7 and fig. 10 in combination, in some embodiments, in order to facilitate up-down toggling of the mode switch 6, the oral cavity observer 100 may further include a sliding key 8, where the sliding key 8 is slidably connected with the main body 1 and can move up-down in the first direction XX relative to the main body 1, the sliding key 8 may be provided with a first fastening portion 81, the switch body 61 of the mode switch 6 is correspondingly provided with a second fastening portion, the first fastening portion 81 and the second fastening portion are fastened and connected, so as to realize the fixed connection between the sliding key 8 and the mode switch 6, and when a user toggles the sliding key 8 up-down, the sliding key 8 can move up-down synchronously with the mode switch 6, so as to realize the switching between the first light source 3 and the second light source and the switching between the positions of the optical filter 5, and further realize the switching between the dental plaque detection function and the normal image function.

The main body 1 includes a housing 11 and a bracket 12, the housing 11 has a second sliding hole 111 penetrating along a third direction ZZ, and in the first direction XX, a length of the second sliding hole 111 may be greater than a length of the first fastening portion 81. The first fastening portion 81 is inserted through the second sliding hole 111 and is fastened to the second fastening portion of the mode switch 6, and the first fastening portion 81 can move up and down in the second sliding hole 111. The bracket 12, the camera 2, the first light source 3, the second light source, the optical filter 5 and the mode switch 6 are all located inside the housing 11.

Further, the first fastening portion 81 of the sliding key 8 may be an elastic mating post, and an end of the mating post has a first undercut 82. The second fastening portion penetrates through the first through hole 612 of the switch body 61 in the third direction ZZ, the matching column of the sliding key 8 penetrates through the second sliding hole 111 of the housing 11, and the first back-off 82 fastens the hole edge of the first through hole 612 of the switch body 61, so as to realize the fastening connection of the sliding key 8 and the mode switch 6.

The sliding key 8 may further comprise an elongated base 83, the base 83 may have a length in the first direction XX that is greater than a length of the first catch 81, the base 83 having a first rear surface 831 facing the mode switch 6 and a first front surface 832 facing away from the mode switch 6, the first catch 81 protruding from the first rear surface 831 in the third direction ZZ. Correspondingly, the housing 11 further has a first accommodating hole 112 communicating with the second sliding hole 111, the base 83 is disposed in the first accommodating hole 112, and the length of the first accommodating hole 112 may be greater than the length of the base 83 in the first direction XX. When the slide key 8 is moved up and down, the first engaging portion 81 moves up and down in the second slide hole 111, and the base 83 moves up and down in the first accommodating hole 112.

Referring to fig. 3, 9, 12 and 13, the sliding key 8 is in friction fit with the main body 1, and at least one of the sliding key 8 and the main body 1 is provided with a damping body capable of increasing friction force. Through setting up the damping body, can increase the resistance that slides key 8 reciprocates, guarantee that the key 8 that slides can not move easily when self gravity or oral cavity viewer 100 rock to can carry out spacingly to the key 8 that slides better. Specifically, the first rear surface 831 of the base 83 may be provided with protrusions 84, and correspondingly, the bottom surface of the first accommodating hole 112 of the housing 11 may be provided with a plurality of recesses 113 distributed at intervals in the first direction XX, and the protrusions 84 may be embedded in the recesses 113, so as to increase the friction force between the sliding key 8 and the main body 1, and the damping body is the protrusions 84 and the recesses 113. In an alternative structure, the first rear surface 831 of the base 83 may be provided with a plurality of recesses spaced apart in the first direction XX, and the bottom surface of the first receiving hole 112 is convexly provided with protrusions, which can be inserted into the recesses. In still another alternative structure, the damping body may be textured provided on the first rear surface 831 of the base 83 and the bottom surface of the first receiving hole 112.

The first through hole 612 of the switch body 61 may have a second upper hole side and a second lower hole side opposite to each other in the first direction XX, and the second upper hole side and the second lower hole side are each provided with the reinforcing portion 62. Each reinforcing portion 62 is disposed on a side of the switch body 61 facing the sliding key 8, each reinforcing portion 62 includes a first boss 621 and a second boss 622 that are connected, the first boss 621 extends along a first direction XX, the second boss 622 extends along a second direction YY, the first direction XX, the second direction YY and the third direction ZZ are perpendicular to each other, and a plane where the optical filter 5 is located may be parallel to the first direction XX and the second direction YY. The second boss 622 has a certain height in the third direction ZZ, which is equivalent to heightening the first through hole 612, so that the first fastening portion 81 of the sliding key 8 can be better inserted into the first through hole 612. The first boss 621 is used for reinforcement, so that the mode switch 6 is not easily damaged after the first fastening portion 81 is inserted into the first through hole 612 and moves up and down along with the sliding key 8.

Referring to fig. 3, 6 and 11 in combination, in some embodiments, the oral cavity observation device 100 further includes a pressing key 9 and a controller 10, the switch body 61 further includes a second through hole 613 penetrating along the third direction ZZ, the pressing key 9 penetrates through the second through hole 613 and cooperates with the controller 10, the controller 10 is disposed on the main body 1, the controller 10 is electrically connected with a circuit board disposed inside the main body 1, and a length of the second through hole 613 in the first direction XX is greater than a maximum moving distance of the mode switch 6 in the first direction XX, so that the pressing key 9 can not interfere with movement of the mode switch 6, thereby ensuring normal function switching. The controller 10 can be controlled by pressing or releasing the pressing key 9, so that the switching of the functions of starting up, shutting down or photographing the camera 2 of the oral cavity observer 100 can be performed.

The pressing key 9 may include a pressing portion 91, a lever 92, and elastic locking claws 93, where the pressing portion 91 is used for a user to press, the lever 92 is fixedly disposed on one side of the pressing portion 91 facing the mode switch 6, the locking claws 93 are cantilever-shaped disposed on one side of the pressing portion 91 facing the mode switch 6, the locking claws 93 are disposed at intervals in a circumferential direction around the lever 92, and in a third direction ZZ, a height of the lever 92 is greater than a height of the locking claws 93. The housing 11 further has a second accommodating hole 114 penetrating along the third direction ZZ, the pressing portion 91 is disposed in the second accommodating hole 114, the locking claw 93 is engaged with the second penetrating hole 613, and in the third direction ZZ, the height of the locking claw 93 may be greater than the depth of the second penetrating hole 613, so that the pressing key 9 has a certain displacement stroke in the third direction ZZ. The push key 9 may further include an elastic restoring body so that the push key 9 can be elastically mounted to the mode switch 6. When the pressing key 9 is in the initial state, the locking claw 93 can lock the hole edge of the second through hole 613.

Referring to fig. 8 in combination, in some embodiments, the mode switch 6 has a connection portion 63 connected to the optical filter 5, and the connection portion 63 may be made of a light-transmitting material, so that the connection portion 63 does not affect the emission of the light source and the shooting of the camera 2 during the up-down movement of the mode switch 6 in the first direction XX. In some alternative constructions, the mode switch 6 may be integrally formed of a light transmissive material and integrally formed, with this integral formation providing for a simple manufacturing process of the mode switch 6.

In the first direction XX, the connection portion 63 may be located at the top of the mode switch 6. The connection portion 63 may have a third through hole 631 penetrating forward and backward in the third direction ZZ, so that the connection portion 63 is annular as a whole. The third through hole 63 may be a stepped hole having a stepped surface, and the filter 5 may be adhered and fixed to the stepped surface.

The top of the housing 11 is provided with a through mounting hole 115 corresponding to the optical filter 5, and the mounting hole 115 may be fixed with a light-transmitting sheet 13, and when the mode switch 6 is in the first state, the light-transmitting sheet 13 faces the optical filter 5 and the camera 2.

Referring to fig. 10 in combination, in some embodiments, the first light source 3 may have a plurality of first light source bodies 31, and in the first operation mode, the first light source bodies 31 may be uniformly distributed on the periphery of the optical filter 5. The first light source bodies 31 can be uniformly distributed at equal angle intervals in the circumferential direction around the optical filter 5, for example, when three first light source bodies 31 are provided, the first light source bodies 31 can be uniformly distributed at an included angle of 120 degrees in the circumferential direction; when there are four first light source bodies 31, each first light source body 31 may be uniformly distributed at an included angle of 90 degrees in the circumferential direction. By uniformly disposing the plurality of first light source bodies 31 on the outer periphery of the optical filter 5, not only can the single light source body be prevented from being blocked, but also light of a specific wavelength can be provided at a plurality of positions, so that the light of the specific wavelength can be uniformly dispersed and emitted.

The second light source may include a plurality of second light source bodies, and all of the second light source bodies may be disposed around the camera 2, so that it is also possible to prevent light of a normal wavelength from being blocked and to ensure uniform emission of light of a normal wavelength.

Referring to fig. 10 in combination, in some embodiments, the oral cavity viewer 100 further includes a front side circuit board 14 and a rear side circuit board 15, the bracket 12 having a second front surface facing the mode switch 6 and a second rear surface facing away from the mode switch 6, the second front surface and the second rear surface being disposed opposite, the front side circuit board 14 being secured to the second front surface of the bracket 12, the rear side circuit board 15 being secured to the second rear surface of the bracket 12. The camera 2 is disposed on one side of the second rear surface of the bracket 12, and the front circuit board 14 has a slot 141 corresponding to the camera 2, so that the front circuit board 14 is substantially n-shaped, and each first light source body 31 is fixed to the front circuit board 14. The bracket 12 further has a fourth through hole 125 penetrating the second front surface and the second rear surface in the third direction ZZ, the orthographic projection of the fourth through hole 125 on the plane of the front side circuit board 14 is located in the orthographic projection of the slot 141 on the plane of the front side circuit board 14, each first light source body 31 surrounds the periphery of the fourth through hole 125, and the camera 2 is fixed with the rear side circuit board 15 and extends into the fourth through hole 125. When the mode switch 6 is switched to the first state, the fourth through hole 125 of the main body 1 faces the third through hole 631 of the mode switch 6 in the third direction ZZ. Since each first light source body 31 is disposed around the periphery of the fourth through hole 125 and the camera 2 is disposed inside the fourth through hole 125, each first light source body 31 is disposed in front of the camera 2 and around the periphery of the camera 2, so that aperture shadows can be effectively prevented.

Referring to fig. 8 to 10 in combination, in some embodiments, the bracket 12 of the main body 1 is provided with two ribs 121 spaced apart in the second direction YY, each rib 121 extends along the first direction XX, a guide groove 122 is formed between the two ribs 121, and the mode switch 6 is disposed in the guide groove 122 and slidingly engaged with the ribs 121. In the second direction YY, the pitch of the two ribs 121 matches the width of the mode switch 6. By providing the ribs 121, the lateral movement of the mode switch 6 in the second direction YY can be effectively restricted, so that the mode switch 6 can be ensured not to generate lateral movement to cause the first light source 3 to be blocked in the process of longitudinally moving the mode switch 6 along the first direction XX.

The third buckling part 123 is further arranged on one side, facing the mode switcher 6, of the support 12, the third buckling part 123 is located between the two protruding edges 113 in the second direction YY, the mode switcher 6 is correspondingly provided with the fourth buckling part 614, the fourth buckling part 614 is in buckling connection with the third buckling part 123, and the support 12 and the mode switcher 6 can be effectively prevented from being separated in the moving process through the buckling connection of the third buckling part 123 and the fourth buckling part 614.

The third fastening portion 123 may be a limiting protrusion, the fourth fastening portion 614 may be a limiting hole extending along the first direction XX, the third fastening portion 123 is slidably disposed in the limiting hole, and in the first direction XX, the length of the limiting hole may be greater than or equal to the length of the first sliding hole 611, so that the setting of the limiting hole does not prevent the mode switch 6 from moving up and down in the first direction XX, and normal operation of mode switching is ensured. In an alternative configuration, the third fastening part 123 may be a limiting hole, and the fourth fastening part may be a limiting protrusion.

In the second direction YY, the width of the limiting hole may be slightly larger than the width of the limiting protrusion, and the width of the first sliding hole 611 may be slightly larger than the width of the trigger portion 41, so that the mode switch 6 may be limited from moving left and right.

The top end of the limiting protrusion may be provided with a second back-off 126, and the second back-off 126 may buckle the hole edge of the limiting hole, so as to prevent the mode switch 6 from being separated from the bracket 12, and increase the stability of the mode switch 6.

Referring to fig. 9 and 10 in combination, in some embodiments, the back of the mode switch 6 is provided with a stopper 64, the corresponding position of the bracket 12 is provided with a stopper insertion hole 124, and the stopper 64 is slidably disposed in the stopper insertion hole 124. In the first direction XX, the stopper insertion hole 124 has an upper limit edge 1241 and a lower limit edge 1242, and the displacement travel of the mode switch 6 can be limited by the upper limit edge 1241 and the lower limit edge 1242, so that the user is prevented from pushing up after pulling the mode switch 6 to the first position or pushing down after pulling the mode switch 6 to the second position, and the trigger portion 41 is broken, so that the whole oral cavity observer 100 is scrapped.

In some embodiments, the oral cavity observer 100 may further include a communication device, where the communication device is configured to transmit the image information formed by the camera 2 to the display terminal, and the communication device may perform data transmission through wired connection such as USB cable, or may perform data transmission through wireless connection such as wifi or bluetooth.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (12)

1. An oral cavity observer, characterized in that the oral cavity observer comprises,

a main body;

the camera is arranged on the main body;

a first light source for illuminating a tooth surface and capable of producing fluorescence for characterization and observation of dental plaque, the first light source being provided to the main body;

a second light source for illuminating the tooth surface, the second light source being disposed on the main body;

the light source controller is provided with a first working mode for enabling the first light source to be started and a second working mode for enabling the second light source to be started, and is arranged on the main body and electrically connected with the first light source and the second light source respectively;

a mode switcher in control connection with the light source controller, the mode switcher having a first state and a second state switchable with each other; the method comprises the steps of,

the optical filter is used for allowing the fluorescence to pass through and is in control connection with the mode switcher;

in the first state, the mode switcher triggers the first working mode, and the optical filter shields the camera;

in the second state, the mode switcher triggers the second working mode, and the optical filter leaves the camera.

2. The oral cavity viewer of claim 1,

the mode switcher is connected to the main body in a sliding manner along a first direction;

the light source controller comprises a trigger part which is connected with the main body in a sliding manner along the first direction, and the trigger part is positioned on the movement track of the mode switcher.

3. The oral cavity viewer of claim 2,

the mode switcher is provided with a first sliding hole extending along the first direction, the triggering part is arranged in the first sliding hole in a sliding mode, H1-H2=L1-L2, wherein H1 is the maximum moving distance of the mode switcher in the first direction, H2 is the maximum moving distance of the triggering part in the first direction, L1 is the length of the first sliding hole in the first direction, and L2 is the length of the triggering part in the first direction.

4. The oral cavity observer according to claim 2, further comprising a sliding key slidably connected to the main body in the first direction, the sliding key having a first snap-fit portion, the mode switch having a second snap-fit portion, the first snap-fit portion and the second snap-fit portion being snap-fit connected.

5. The oral cavity observer according to claim 4, wherein the sliding key is in friction fit with the body, at least one of the sliding key and the body being provided with a damping body capable of increasing friction to position the sliding key.

6. The oral cavity observer according to claim 2, further comprising a push button and a controller, wherein the mode switch has a second through hole, the push button is disposed through the second through hole and cooperates with the controller, the controller is disposed on the main body, the controller is electrically connected to both the light source controller and the camera, and a length of the second through hole in the first direction is greater than a maximum movement distance of the mode switch in the first direction.

7. The oral cavity observer according to claim 1, wherein a portion of the mode switch connected to the optical filter is made of a light-transmitting material; or, the mode switcher is made of a light-transmitting material and integrally formed.

8. The oral cavity observer according to claim 1, wherein the first light source includes a plurality of first light source bodies, and wherein in the first operation mode, the first light source bodies are uniformly distributed at the periphery of the optical filter; and/or the number of the groups of groups,

the second light source comprises a plurality of second light source bodies, and all the second light source bodies are arranged around the camera.

9. The oral cavity observer according to claim 1, wherein the body includes a housing and a bracket fixed inside the housing, the oral cavity observer further includes a front side circuit board and a rear side circuit board, the front side circuit board is fixed on a front surface of the bracket, the rear side circuit board is fixed on a rear surface of the bracket, the front side circuit board has a slot corresponding to the camera, the first light source is fixed on the front side circuit board, the bracket has a fifth through hole penetrating the front surface and the rear surface, an orthographic projection of the fifth through hole on the front side circuit board is located inside the slot, the first light source is located on a periphery of the fifth through hole, and the camera is fixed on the rear side circuit board and located inside the fifth through hole.

10. The oral cavity observer according to claim 3, wherein the main body comprises a housing and a bracket fixed in the housing, the bracket is provided with ribs which are distributed at intervals in a second direction, the second direction is perpendicular to the first direction, the ribs extend along the first direction, a guide groove is formed between the two ribs, and the mode switcher is arranged in the guide groove and is in sliding fit with the ribs.

11. The oral cavity observer according to claim 10, wherein the bracket is further provided with a third fastening part, the third fastening part is located between the two ribs, the mode switcher is correspondingly provided with a fourth fastening part, and the third fastening part and the fourth fastening part are fastened and connected; one of the third buckling part and the fourth buckling part is a limiting protrusion, the other one of the third buckling part and the fourth buckling part is a limiting hole, the limiting hole extends along the first direction, the limiting protrusion is slidably arranged in the limiting hole, and in the first direction, the length of the limiting hole is larger than that of the first sliding hole.

12. The oral cavity viewer according to claim 2, wherein the main body includes a housing and a bracket fixed inside the housing, one of the mode switch and the bracket is provided with a stopper, and the other of the mode switch and the bracket is provided with a stopper insertion hole extending in the first direction, the stopper being slidably provided in the stopper insertion hole.