CN112243502A

CN112243502A - Switching device and camera

Info

Publication number: CN112243502A
Application number: CN201980034089.4A
Authority: CN
Inventors: 刘铨垒
Original assignee: Victor Doha Su Co ltd
Current assignee: Victor Doha Su Co ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2021-01-19
Anticipated expiration: 2039-06-21
Also published as: CN112243502B; WO2020252768A1

Abstract

A switching device (100) and a camera are provided, the switching device (100) comprises a shell (10) and a switching sleeve (20), the shell (10) is provided with two opposite ends, one end of the shell (10) is detachably connected with a camera body (200), and the other end of the shell (10) is detachably connected with an external lens (300); the adapter sleeve (20) is arranged in the shell (10); wherein, the internal surface of adapter sleeve (20) is equipped with the sawtooth structure that is used for the extinction, and sawtooth structure includes a plurality of sawtooth (201), and sawtooth (201) set up along the circumference of adapter sleeve (20), and sawtooth (201) evenly set up along the axial of adapter sleeve (20).

Description

Switching device and camera

Technical Field

The application relates to the technical field of cameras, in particular to a switching device and a camera.

Background

The adapter ring is an adapter for the connection between lenses with different apertures of a digital camera, and the lenses with different apertures can be used on the same camera by using the adapter ring, so that the advantages of the camera and the lens can be better played, and the selection of users can be widened.

In the prior art, in order to prevent the imaging quality loss caused by the fact that diffuse reflection inside the adapter ring is projected to a photosensitive original of a camera in the use process of the lens, black anodic oxidation is often adopted when the adapter ring is subjected to extinction treatment, the extinction effect is poor, and the shooting quality of the camera cannot be well improved.

Disclosure of Invention

The main aim at of this application provides a switching device and camera, aims at realizing weakening the dazzling light effect of adapter ring, improves the shooting effect of camera.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a switching device is used for a camera and comprises a shell and a switching sleeve, wherein the shell is provided with two opposite ends, one end of the shell is detachably connected with a camera body, and the other end of the shell is detachably connected with an external lens; the adapter sleeve is arranged in the shell; the inner surface of the adapter sleeve is provided with a sawtooth structure used for extinction, the sawtooth structure comprises a plurality of sawteeth, the sawteeth are arranged along the circumferential direction of the adapter sleeve, and the sawteeth are arranged along the axial direction of the adapter sleeve uniformly.

The application also provides a camera, which comprises a camera body, an external lens and a switching device, wherein the switching device comprises a shell and a switching sleeve, the shell is provided with two opposite ends, one end of the shell is detachably connected with the camera body, and the other end of the shell is detachably connected with the external lens; the adapter sleeve is arranged in the shell; the inner surface of the adapter sleeve is provided with a sawtooth structure used for extinction, the sawtooth structure comprises a plurality of sawteeth, the sawteeth are arranged along the circumferential direction of the adapter sleeve, and the sawteeth are arranged along the axial direction of the adapter sleeve uniformly.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs an adapter device and camera, this adapter device includes the casing and installs the switching cover in the casing, the casing has relative both ends, the one end and the camera body of casing can be dismantled and be connected, the other end and the external camera lens of casing can be dismantled and be connected, be equipped with the sawtooth structure that is used for the extinction through the internal surface at the switching cover, the sawtooth structure includes a plurality of sawtooth, the sawtooth sets up along the circumference of switching cover, and the sawtooth evenly sets gradually along the axial of switching cover, through setting up the sawtooth structure, be convenient for improve adapter device's extinction effect, thereby improve the shooting quality of camera.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a camera according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the adapter of FIG. 1;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic view of the adapter sleeve of FIG. 2;

FIG. 5 is a schematic view of the adapter of FIG. 1;

FIG. 6 is an enlarged schematic view at B in FIG. 5;

FIG. 7 is a schematic cross-sectional view of the structure of FIG. 1;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

FIG. 9 is another schematic view of the cross-sectional configuration of FIG. 1;

FIG. 10 is an enlarged schematic view at D of FIG. 10;

FIG. 11 is a cross-sectional view of the toggle lever of FIG. 10;

FIG. 12 is a schematic view of the toggle lever of FIG. 1;

FIG. 13 is an enlarged schematic view at E in FIG. 12;

FIG. 14 is an exploded view of the adapter of FIG. 1;

FIG. 15 is an enlarged schematic view at F of FIG. 14;

FIG. 16 is an enlarged schematic view at G of FIG. 14;

fig. 17 is an enlarged schematic view at H in fig. 14.

Description of reference numerals:

100. a switching device;

10. a housing; 110. a top cover; 111. clamping a platform; 112. a snap ring; 120. side sleeves; 121. a button hole; 130. a bottom cover; 131. mounting holes; 132. a containing groove; 133. a baffle plate; 134. blocking strips; 135. a boss; 136. a rotating shaft; 20. a transfer sleeve; 210. a top portion; 220. a bottom; 230. a transition surface; 201. saw teeth; 202. a bayonet; 30. a stainless steel gasket; 40. a deflector rod; 401. a first end; 402. a second end; 403. a pressing block; 50. a torsion spring;

200. a camera body;

300. connecting a lens externally; 301. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, the present application provides an adapter 100, where the adapter 100 is used to mount an external lens 300 on a camera body 200, and the adapter 100 includes a housing 10 and an adapter sleeve 20, where the housing 10 has two opposite ends, one end of the housing 10 is detachably connected to the camera body 200, and the other end of the housing 10 is detachably connected to the external lens 300. In this embodiment, the adapter sleeve 20 is installed in the housing 10, a serration structure (not labeled in the drawings) for extinction is disposed on an inner surface of the adapter sleeve 20, the serration structure includes a plurality of serrations 201, the serrations 201 are disposed along a circumferential direction of the adapter sleeve 20, and the serrations 201 are uniformly disposed along an axial direction of the adapter sleeve 20.

Specifically, the adapter 100 is mounted on the camera for matching with a lens of the camera, and the external lens 300 is a lens matched with the camera, so as to improve the shooting performance of the camera in various aspects under the action of the external lens 300. The adapter sleeve 20 in the adapter device 100 further includes a top portion 210, a bottom portion 220 and a transition surface 230, wherein the top portion 210 of the adapter sleeve 20 is adapted to the camera body 200, the bottom portion 220 of the adapter sleeve 20 is adapted to the external lens 300, and the transition surface 230 connects the bottom portion 220 and the top portion 210. The internal surface of adapter sleeve 20 is provided with a plurality of sawtooth 201, and sawtooth 201 sets up along adapter sleeve 20's circumference, and a plurality of sawtooth 201 evenly set up in proper order along adapter sleeve 20's axial.

It will be appreciated that the serrations are provided on the inner surfaces of the top 210, bottom 220 and transition surfaces 230 of the adaptor sleeve 20. The serrations 201 have opposite sides, one of which is disposed radially of the adaptor sleeve 20 and the other of which is disposed obliquely away from the axis of the adaptor sleeve 20 towards the tip 210. Through setting up the sawtooth structure, when being convenient for external camera lens 300 to install on the camera through switching device 100 and shoot, improve the shooting effect of camera. In the process of using switching device 100, because the inside of switching cover 20 is provided with the serration structure, light disappears in the prong department of serration structure after the reflection on the serration structure, can not throw on the photosensitive element of camera, thereby reach the effect of dazzling the light effect of weakening greatly, avoid the inside of switching ring light in the use take place the diffuse reflection and still project the problem that causes the imaging quality loss in the photosensitive element of camera inside the switching ring, and then reach the imaging quality who improves the camera.

After the technical scheme above the adoption, switching device 100 includes casing 10 and installs switching cover 20 in casing 10, casing 10 has relative both ends, casing 10's one end can be dismantled with camera body 200 and be connected, casing 10's the other end can be dismantled with external camera lens 300 and be connected, the internal surface through at switching cover 20 sets up the sawtooth structure that is used for the extinction, the sawtooth structure includes a plurality of sawtooth 201, sawtooth 201 sets up along the circumference of switching cover 20, and sawtooth 201 evenly sets gradually along the axial of switching cover 20, under the effect of sawtooth structure, light energy weakens gradually after the reflection between the both sides of sawtooth 201, make light can not project on the light sensing element of camera, be convenient for improve switching device 100's extinction effect, thereby improve the shooting quality of camera.

Please refer to fig. 4, the teeth in the saw-tooth structure are arranged in a triangular shape, wherein the angle of the teeth can be set in various ways, for example, the angle of the teeth is 30 °, 45 °, 60 °, which is not limited herein; the depth of the tooth shape can be set in various ways, for example, the depth of the tooth shape can be 0.8mm, 0.9mm, 1mm, 1.2mm, and is not limited herein. In this application, the profile of tooth among the serration structure is right triangle and sets up, and right triangle's hypotenuse sets up towards switching cover 20 and camera body 200 complex one end, and the degree of depth of profile of tooth is 1mm, and the angle of profile of tooth is 45, easily the setting of the profile of tooth structure of switching cover 20, and the switching cover 20 of being convenient for improves the effect of extinction at the shooting in-process.

In an alternative embodiment, with continued reference to fig. 2, the central axis of the lens of the camera body 200 and the central axis of the circumscribed lens 300 substantially coincide with the central axis of the adapter sleeve 20. The central axis of the lens of the camera body 200 and the central axis of the external lens 300 are substantially coincident with the central axis of the adapter sleeve 20, which means that the coaxiality of the adapter sleeve 20, the external lens 300 and the lens of the camera body 200 is within the range of 0.05, so that the camera body 200 can receive light rays penetrating through the external lens 300 and the adapter sleeve 20 conveniently, and the imaging quality of the camera is improved.

In an alternative embodiment, the sawtooth structure is provided with a matte layer. The extinction layer is arranged on the sawtooth 201 structure inside the adapter sleeve 20, so that the extinction effect of the adapter device 100 is further improved. In this embodiment, the matting layer may be an oxide layer, for example, the oxide layer may be a coating of aluminum oxide. It is understood that the matting layer can also be matting velvet or matting paint, and is not limited herein.

In an alternative embodiment, referring to fig. 2, fig. 5 and fig. 6, the housing 10 includes a top cover 110, a bottom cover 130 and a side sleeve 120, the top cover 110 is detachably connected to the camera body 200, the bottom cover 130 is detachably connected to the external lens 300, the side sleeve 120, the top cover 110 and the bottom cover 130 enclose an accommodating space, and the adapter sleeve 20 is installed in the accommodating space. In this embodiment, the top cover 110 and the camera body 200 are fastened together in a snap-fit connection manner, the end of the top cover 110, which is matched with the camera body 200, is provided with the clamping table 111, the clamping table 111 is arc-shaped and is arranged on the peripheral wall of the top cover 110, the camera body 200 is provided with a mounting groove matched with the clamping table 111, in the process of installing and matching the adapter device 100 and the camera body 200, the clamping table 111 is firstly matched with the mounting groove, and then the adapter device 100 is rotated, so that the clamping table 111 is located inside the mounting groove, and an effect of fixing the camera body 200 and the adapter device 100 is achieved. It should be noted that, an elastic body is further disposed in the mounting groove of the camera body 200, so that the boss 135 of the top cover 110 can push out the top cover 110 when being located at the notch of the mounting groove, even if the adaptor 100 is separated from the camera body 200, and the boss 135 of the top cover 110 can be conveniently located in the mounting groove, so that the top cover 110 and the camera body 200 are tightly fitted together under the action of the elastic force of the elastic body.

It should be noted that, referring to fig. 2 and fig. 4, the inner side of the top cover 110 is further provided with a clamping ring 112, and the top 210 of the adapter sleeve 20 is provided with a bayonet 202, wherein the clamping ring 112 is adapted to the bayonet 202, when the adapter sleeve 20 is installed in the accommodating space of the housing 10, the clamping ring 112 is installed at the position of the bayonet 202, and at this time, the top 210 of the adapter sleeve 20 abuts against the top cover 110. In this embodiment, the top cover 110 and the side cover 120 are fastened together by means of screw connection, and the adapter 100 is an important optical element and has a high precision requirement, so that the distance between the two opposite ends of the housing 10 has a high requirement, and by arranging a plurality of adjusting members at the installation matching positions of the top cover 110 and the side cover 120, the adjusting members are used for adjusting the distance between the top cover 110 and the bottom cover 130, thereby achieving the effect of adjusting the distance between the two opposite end faces of the housing 10, improving the connection precision of the adapter 100, reducing the cost, and improving the photographing effect of the camera.

In an alternative embodiment, referring to fig. 2, 14 and 15, the adjustment member is a stainless steel washer 30. The stainless steel gasket 30 is disposed to facilitate adjustment of a distance between a mating surface of the top cover 110 and a mating surface of the bottom cover 130, where the mating surface of the top cover 110 is an end surface of the top cover 110 mating with the camera body 200, and the mating surface of the bottom cover 130 is an end surface of the bottom cover 130 mating with the external lens 300. The stainless steel gasket 30 is easy to machine and form, convenient to obtain and low in production cost, the stainless steel gasket 30 is adopted as the adjusting piece, the adjusting piece is convenient to use for a long time, and the phenomenon that the distance between matching surfaces of two opposite ends of the shell 10 is influenced by rusting deformation of the adjusting piece is avoided. The thickness of the stainless steel shim 30 is in the range of 0.03mm to 0.1mm, it being understood that the thickness of the stainless steel shim 30 may be 0.03mm, alternatively 0.05mm, alternatively 0.08mm, alternatively 0.1 mm. In the embodiment provided by the application, the thickness of the stainless steel gasket 30 is 0.05mm, so that the distance between the matching surface of the top cover 110 and the matching surface of the bottom cover 130 is controlled within 0.05mm, and the photographing quality of the camera is improved.

In an alternative embodiment, referring to fig. 2, 3, 14 and 17, the bottom cover 130 is snap-connected to the external lens 300. Facilitating the installation and the matching between the external lens 300 and the bottom cover 130. The bottom cover 130 is provided with a clamping portion, and the clamping portion is rotatably clamped with the external lens 300 to fasten the external lens 300 and the bottom cover 130 together. In the technical scheme that this application provided, joint portion includes mounting hole 131 and receiving groove 132, and mounting hole 131 sets up the one side of keeping away from top cap 110 at bottom 130, and receiving groove 132 is linked together with mounting hole 131 for accomodate the connecting block that sets up on external camera lens 300. In the process of connecting and matching the external lens 300 and the adapter 100, the connecting block disposed on the external lens 300 is firstly matched with the mounting hole 131, and then the external lens 300 is rotated to make the connecting block located in the accommodating groove 132, thereby achieving the effect of tightly connecting the external lens 300 and the adapter 100 together. It can be understood that the connecting block disposed on the external lens 300 is disposed obliquely away from the external lens 300, so that in the process of rotationally clamping the external lens 300 and the bottom cover 130, the end surfaces of the external lens 300 and the bottom cover 130, which are matched with each other, are abutted together, so that the external lens 300 and the adapter 100 are firmly connected.

Please refer to fig. 14 and fig. 17, the bottom cover 130 is further provided with a blocking plate 133 at an end away from the top cover 110, the blocking plate 133 is installed at a side of the bottom cover 130 away from the top cover 110, meanwhile, the accommodating groove 132 is formed by enclosing the bottom cover 130 and the blocking plate 133, the mounting hole 131 is disposed on the blocking plate 133, the blocking plate 133 is further provided with a blocking strip 134 at a position corresponding to the mounting hole 131, the blocking strip 134 is inclined toward the top cover 110, so that the blocking strip 134 has a certain elasticity, and when the external lens 300 is rotatably clamped with the accommodating cavity on the bottom cover 130, under the action of the elastic force of the blocking strip 134, the external lens 300 is tightly connected with the bottom cover 130.

It should be noted that the clamping portion may also be a clamping block (not shown), the clamping block is installed on the bottom cover 130, the clamping block is inclined toward a direction away from the top cover 110, a clamping hole adapted to the clamping block is formed in the external lens 300, and the external lens 300 and the bottom cover 130 are rotatably clamped together through the clamping block and the clamping hole.

In an alternative embodiment, referring to fig. 7 to 11, the locking portion includes a mounting hole 131 and a receiving groove 132, the mounting hole 131 is disposed on a side of the bottom cover 130 away from the top cover 110, and the receiving groove 132 is communicated with the mounting hole 131 for receiving a connecting block disposed on the external lens 300. In this embodiment, a boss 135 is further disposed in the bottom 220 of the receiving groove 132, and the boss 135 is used for limiting the installation position of the external lens 300. Through setting up the boss 135, in the process of the rotatory joint of external lens 300 and bottom 130, the lug on the external lens 300 can not continue to rotate because of receiving the blockking of boss 135 at the rotatory in-process, be convenient for restrict the mounted position of external lens 300, thereby be convenient for external lens 300 and the accurate installation of bottom 130 together, when avoiding external lens 300 rotatory joint to set for the position on switching device 100, the user continues to rotate external lens 300 and causes switching device 100 and the improper problem of external lens 300 cooperation.

In an alternative embodiment, referring to fig. 5 to 11, the bottom cover 130 is provided with a receiving cavity (not labeled), the side sleeve 120 is provided with a button hole 121 at a position opposite to the receiving cavity, the housing 10 further includes a shift lever 40, the shift lever 40 is disposed in the receiving cavity, and the shift lever 40 is rotatably connected to the bottom cover 130, the shift lever 40 has a first end 401 and a second end 402 disposed opposite to each other, wherein the first end 401 is located in the button hole 121, and the second end 402 is engaged with a groove 301 disposed on the external lens 300. In this embodiment, the shift lever 40 is installed on the sidewall of the accommodating chamber, and the shift lever 40 is rotatably connected to the sidewall of the accommodating chamber, so that the shift lever 40 can rotate on the radial section of the side sleeve 120, the external lens 300 is provided with a groove 301 in the radial direction, when the external lens 300 and the bottom cover 130 are rotatably clamped to the position defined by the boss 135, the groove 301 on the external lens 300 is located at the position corresponding to the second end 402, the second end 402 of the shift lever 40 is clamped to the groove 301 on the external lens 300, and the external lens 300 is prevented from rotating again under the limitation of the boss 135 and the second end 402 of the shift lever 40. Meanwhile, since the connection block on the external lens 300 is located in the accommodation groove 132 on the bottom cover 130, when the external lens 300 cannot rotate, the side wall of the accommodation groove 132 limits the external lens 300 to move along the axial direction of the external lens 300, thereby achieving the effect of fastening and matching the external lens 300 and the bottom cover 130. The first end 401 of the shift lever 40 is located in the button hole 121 of the side sleeve 120, so that the user can drive the second end 402 to rotate by pressing the first end 401 of the shift lever 40, and the first end 401 of the shift lever 40 is separated from the groove 301 on the external lens 300, so that the connecting block on the external lens 300 is separated from the accommodating groove 132 on the bottom cover 130 in a reverse rotation manner, and the external lens 300 is separated from the bottom cover 130.

In an alternative embodiment, referring to fig. 5 and fig. 11 to 13, a pressing block 403 adapted to the button hole 121 is disposed on the first end 401, the pressing block 403 is disposed in the button hole 121, such that when the second end 402 is engaged with the groove 301, the first end 401 abuts against an inner wall of the side sleeve 120, wherein a thickness of the pressing block 403 is smaller than a wall thickness of the side sleeve 120. In this embodiment, a pressing block 403 is disposed on a first end 401 of the shift lever 40, the shape and size of the pressing block 403 are matched with the button hole 121 of the side sleeve 120, when the pressing block 403 is located in the button hole 121, a second end 402 of the shift lever 40 is matched with the groove 301, the second end 402 of the shift lever 40 limits the external lens 300 to rotate, and the first end 401 of the shift lever 40 abuts against an inner wall of the side sleeve 120, because the thickness of the pressing block 403 is smaller than the wall thickness of the side sleeve 120, the pressing block 403 is accommodated in the button hole 121 of the side sleeve 120, which avoids the problem that the external lens 300 is not firmly connected with the adapter 100 when the user carelessly touches the pressing block 403 during photographing, and simultaneously avoids the influence on the hand feeling of the user when the pressing block 403 protrudes out of the outer surface of the side sleeve 120, thereby improving the safety of the connection between the external lens 300 and the adapter 100. It should be noted that the second end 402 of the shift lever 40 is further provided with an inclined surface in the direction of the rotation and the locking of the external lens 300, so as to prevent the second end 402 of the shift lever 40 from obstructing the rotation of the external lens 300.

In an alternative embodiment, with continued reference to fig. 5, the button apertures 121 are incrementally sized from the inner surface to the outer surface of the side sleeve 120. In the technical solution provided in this embodiment, the size of the opening of the button hole 121 is gradually increased from the inner surface to the outer surface of the side sleeve 120, that is, the edge of the button hole 121 is provided with a chamfer at the outer surface, so that the button hole 121 forms a cavity adapted to a finger at the outer surface, and a user can press the pressing block 403 to separate the second end 402 of the shift lever 40 from the groove 301 on the external lens 300.

In an alternative embodiment, referring to fig. 10 to 13, the bottom cover 130 is provided with a rotating shaft 136, the driving lever 40 is mounted on the rotating shaft 136, and the first end 401 and the second end 402 are respectively located at two opposite sides of the rotating shaft 136. In the technical solution provided in this embodiment, the rotating shaft 136 is disposed on the bottom cover 130, the shift lever 40 is provided with a rotating hole adapted to the rotating shaft 136, the shift lever 40 is disposed on the bottom cover 130 by matching with the rotating shaft 136 through the rotating hole, wherein the first end 401 of the shift lever 40 and the second end 402 of the shift lever 40 are disposed on two opposite sides of the rotating shaft 136, respectively. It is understood that first end 401 of toggle lever 40 and second end 402 of toggle lever 40 can also be located on the same side of pivot 136, and that second end 402 of toggle lever 40 can rotate in a direction opposite to first end 401 when first end 401 of toggle lever 40 is rotated. It should be noted that the rotating shaft 136 is disposed near the second end 402, so that the first end 401 of the shift lever 40 drives the second end 402 of the shift lever 40 to rotate.

In an alternative embodiment, with continued reference to fig. 10-13 and fig. 14 and 16, the housing 10 further includes an elastic member for driving the shift lever 40 to rotate about the rotation shaft 136. Through setting up the elastic component, press down the recess 301 that presses down pressing block 403 to drive the second end 402 of driving lever 40 and break away from external camera lens at the user, the elastic component atress takes place to be out of shape, do not press down pressing block 403 back at user's finger, the elastic component is under the effect of self elasticity, drive the first end 401 of driving lever 40 and rotate the inner wall butt that makes the first end 401 of driving lever 40 and side cover 120 to make the second end 402 of driving lever 40 be located the recess 301 matched with position department with external camera lens 300. In the technical solution provided in this embodiment, the elastic member includes a torsion spring 50, the torsion spring 50 is installed on the rotating shaft 136, the torsion spring 50 has two opposite ends, wherein one end of the torsion spring 50 is matched with the first end 401, and the other end of the torsion spring 50 is abutted against the inner wall of the side sleeve 120. In this embodiment, one end of the torsion spring 50 abuts against the inner wall of the shift lever 40, which is far away from the side sleeve 120, at the first end 401, and the second end 402 of the torsion spring 50 abuts against the inner wall of the side sleeve 120, so that when the shift lever 40 rotates through the rotating shaft 136, the torsion spring 50 is stressed to tighten, and then the torsion spring 50 drives the first end 401 of the shift lever 40 to abut against the inner wall of the side sleeve 120 under the action of its own torsion force. By arranging the torsion spring 50, the torsion spring 50 drives the shift lever 40 to return to the initial state, wherein the initial state of the shift lever 40 is a state in which the first end 401 of the shift lever 40 abuts against the inner wall of the side sleeve 120.

The present application further provides a camera, please refer to fig. 1 and fig. 2, the camera includes a camera body 200, an external lens 300 and the above adapter 100, the adapter 100 includes a housing 10 and an adapter sleeve 20, the housing 10 has two opposite ends, one end of the housing 10 is detachably connected to the camera body 200, the other end of the housing 10 is detachably connected to the external lens 300, and the adapter sleeve 20 is installed in the housing 10; the inner surface of the adapter sleeve 20 is provided with a sawtooth structure for extinction, the sawtooth structure comprises a plurality of sawteeth 201, the sawteeth 201 are arranged along the circumferential direction of the adapter sleeve 20, and the sawteeth 201 are arranged along the axial direction of the adapter sleeve 20 uniformly. In this embodiment, the adapter device 100 is arranged to match the camera body 200 with different external lenses 300 according to actual needs, so as to improve the shooting quality of the camera. Opposite ends of the housing 10 in the adapter device 100 are detachably connected to the camera body 200 and the external lens 300, respectively, and the adapter sleeve 20 in the adapter device 100 is provided with a saw-toothed structure. The sawtooth structure in the adapter sleeve 20 can be to a great extent in the camera shooting process to play the extinction effect, and the phenomenon that diffuse reflection projects to the photosensitive element of the camera to cause imaging quality loss when shooting is avoided by adopting black anodic oxidation as the inner wall of the adapter ring is avoided, so that the effect of improving the shooting quality of the camera is achieved. The specific structure of the adapter 100 refers to the above embodiments, and since the camera adopts all the technical solutions of the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A relay device for a camera, the relay device comprising:

the camera comprises a shell, a lens and a lens holder, wherein the shell is provided with two opposite ends, one end of the shell is detachably connected with a camera body, and the other end of the shell is detachably connected with an external lens;

the adapter sleeve is arranged in the shell;

the inner surface of the adapter sleeve is provided with a sawtooth structure used for extinction, the sawtooth structure comprises a plurality of sawteeth, the sawteeth are arranged along the circumferential direction of the adapter sleeve, and the sawteeth are arranged along the axial direction of the adapter sleeve uniformly.
The transition device according to claim 1, wherein the sawtooth structure is provided with a matte layer.
The transition device according to claim 2, wherein the matte layer is an oxide layer.
The adapter of claim 1, wherein a central axis of the lens of the camera body and a central axis of the circumscribing lens substantially coincide with a central axis of the adapter sleeve.
The adapter device of claim 4, wherein the adapter sleeve comprises:

a top portion fitted to the camera body;

the bottom is matched with the external lens;

a transition surface connecting the bottom portion and the top portion.
The adapter of claim 5 wherein the serrations have opposite sides, one of which is disposed radially of the adapter sleeve and the other of which is disposed obliquely away from the axis of the adapter sleeve toward the top.
The transition device defined in any one of claims 1-6, wherein the housing comprises:

the top cover is detachably connected with the camera body;

the bottom cover is detachably connected with the external lens;

and the side sleeve, the top cover and the bottom cover enclose a containing space, and the adapter sleeve is arranged in the containing space.
The adapter of claim 7 wherein the top cover is securely attached to the side sleeve and a plurality of adjustment members are provided at the attachment interface of the top cover to the side sleeve.
The adapter of claim 8 wherein the adjustment member is a stainless steel washer.
The adapter of claim 9, wherein the stainless steel gasket has a thickness in the range of 0.03mm to 0.1 mm.
The adapter of claim 10, wherein the stainless steel gasket has a thickness of 0.05 mm.
The adapter of claim 7, wherein the bottom cover is snap-fit to the external lens.
The adapter device of claim 12, wherein the bottom cover is provided with a locking portion for rotationally locking with the external lens.
The adapter of claim 13, wherein the snap-fit portion comprises:

the mounting hole is arranged on one side, far away from the top cover, of the bottom cover;

and the accommodating groove is communicated with the mounting hole and is used for accommodating a connecting block arranged on the external lens.
The adapter of claim 14, wherein a boss is disposed in the receiving groove for limiting the mounting position of the external lens.
The adapter of claim 13, wherein the snap-fit portion comprises:

the joint piece is installed on the bottom cover, and the orientation deviates from the direction slope setting of top cap.
The adapter of claim 13, wherein the bottom cover has a receiving cavity, the side cover has a button hole at a position opposite to the receiving cavity, and the housing further comprises:

the driving lever is arranged in the accommodating cavity and is rotationally connected with the bottom cover, and the driving lever is provided with a first end and a second end which are oppositely arranged, wherein the first end is positioned in the button hole, and the second end is matched with a groove arranged on the external lens.
The adapter of claim 17, wherein the first end is provided with a pressing block that fits into the button hole, the pressing block being disposed in the button hole such that the first end abuts against an inner wall of the side sleeve when the second end fits into the groove, wherein a thickness of the pressing block is less than a wall thickness of the side sleeve.
The adapter of claim 18, wherein the button apertures have an increasing size in the direction from the inner surface to the outer surface of the side sleeve.
The adapter of claim 17, wherein the bottom cover has a shaft, the lever is mounted on the shaft, and the first end and the second end are located on opposite sides of the shaft.
The adapter of claim 20, wherein the shaft is disposed proximate the second end.
The adapter of claim 20, wherein the housing further comprises an elastic member for rotating the lever about the axis of rotation.
The adapter of claim 22, wherein the resilient member comprises a torsion spring mounted on the shaft and having opposite ends, wherein one end of the torsion spring is engaged with the first end and the other end of the torsion spring is abutted against the inner wall of the side sleeve.
The utility model provides a camera, its characterized in that, camera includes camera body, external camera lens and switching device, switching device includes:

the camera comprises a shell, a lens holder and a lens holder, wherein the shell is provided with two opposite ends, one end of the shell is detachably connected with the camera body, and the other end of the shell is detachably connected with the external lens;

the adapter sleeve is arranged in the shell;

the inner surface of the adapter sleeve is provided with a sawtooth structure used for extinction, the sawtooth structure comprises a plurality of sawteeth, the sawteeth are arranged along the circumferential direction of the adapter sleeve, and the sawteeth are arranged along the axial direction of the adapter sleeve uniformly.
The camera of claim 24, wherein the sawtooth-shaped structure is provided with an extinction layer.
The camera of claim 25, wherein the extinction layer is an oxide layer.
The camera of claim 24, wherein a central axis of the lens of the camera body and a central axis of the circumscribing lens substantially coincide with a central axis of the adapter sleeve.
The camera of claim 27, wherein the adapter sleeve comprises:

the top is matched with the external lens;

the bottom is matched with the external lens;

a transition surface connecting the bottom portion and the top portion.
The camera of claim 28, wherein the serrations have opposite sides, one of which is disposed radially of the adapter sleeve and the other of which is disposed obliquely away from the axis of the adapter sleeve toward the top.
The camera of any one of claims 24-29, wherein the housing comprises:

the top cover is detachably connected with the camera body;

the bottom cover is detachably connected with the external lens;

and the side sleeve, the top cover and the bottom cover enclose a containing space, and the adapter sleeve is arranged in the containing space.
The camera as in claim 30, wherein the top cover is fastened to the side sleeve, and a plurality of adjustment members are disposed at the fitting positions of the top cover and the side sleeve.
The camera of claim 31, wherein the adjustment member is a stainless steel shim.
The camera of claim 32, wherein the stainless steel shim has a thickness in a range of 0.03mm to 0.1 mm.
The camera of claim 33, wherein the stainless steel shim has a thickness of 0.05 mm.
The camera of claim 30, wherein the bottom cover is snap-fit to the external lens.
The camera as claimed in claim 35, wherein the bottom cover is provided with a locking portion for rotatably locking with the external lens.
The camera of claim 36, wherein the clip portion comprises:

the mounting hole is arranged on one side, far away from the top cover, of the bottom cover;

and the accommodating groove is communicated with the mounting hole and is used for accommodating and setting the connecting block on the external lens.
The camera as claimed in claim 37, wherein a boss for limiting an installation position of the external lens is further disposed in the receiving groove.
The camera of claim 36, wherein the clip portion comprises:

the joint piece is installed on the bottom cover, and the orientation deviates from the direction slope setting of top cap.
The camera as in claim 36, wherein the bottom cover has a receiving cavity, the side cover has a button hole at a position opposite to the receiving cavity, and the housing further comprises:

the driving lever is arranged in the accommodating cavity and is rotationally connected with the bottom cover, and the driving lever is provided with a first end and a second end which are oppositely arranged, wherein the first end is positioned in the button hole, and the second end is matched with a groove arranged on the external lens.
The camera as claimed in claim 40, wherein the first end is provided with a pressing block adapted to the button hole, the pressing block is installed in the button hole such that the first end abuts against an inner wall of the side cover when the second end is fitted to the groove, and a thickness of the pressing block is smaller than a wall thickness of the side cover.
The camera of claim 41, wherein the button apertures have an increasing size in a direction from an inner surface to an outer surface of the side sleeve.
The camera as in claim 40, wherein the bottom cover has a shaft, the lever is mounted on the shaft, and the first end and the second end are located on opposite sides of the shaft.
The camera of claim 43, wherein the hinge is disposed proximate the second end.
The camera as in claim 43, wherein the housing further comprises an elastic member for rotating the lever about the rotation axis.
The camera of claim 45, wherein the elastic member comprises a torsion spring, the torsion spring is mounted on the rotating shaft and has two opposite ends, wherein one end of the torsion spring is matched with the first end, and the other end of the torsion spring is abutted against the inner wall of the side sleeve.