CN217305683U - Right angle viewfinder adapter - Google Patents
Right angle viewfinder adapter Download PDFInfo
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- CN217305683U CN217305683U CN202220682418.5U CN202220682418U CN217305683U CN 217305683 U CN217305683 U CN 217305683U CN 202220682418 U CN202220682418 U CN 202220682418U CN 217305683 U CN217305683 U CN 217305683U
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Abstract
The utility model discloses a right angle view finder switching device, which comprises an installation support, the installing support is including the first connecting plate and the second connecting plate that connect gradually, the second connecting plate is along extending from top to bottom, the lower extreme of second connecting plate is formed with the installation framework, the installation framework is used for the viewing window of shroud shooting camera, and supplies the installation end demountable installation of right angle view finder, first connecting plate is to extending around following for plant and be fixed in the hot boots socket of flash light. Thereby for the installation end of right angle view finder provides the installation position, the appearance design of installation framework matches the interface of right angle view finder, when using, photographer's eyes correspond the observation end to can pass through the inner structure of right angle view finder observes the picture of the finder window in the installation framework has solved the problem that current camera can not the direct mount right angle view finder, and this scheme simple structure, simple to operate, the commonality is strong.
Description
Technical Field
The utility model relates to a shoot technical field, in particular to right angle view finder switching device.
Background
In a conventional camera, a subject is generally displayed on a reversible LCD display, but the display screen of the LCD display is greatly affected by the external environment. When the outside is bright, the condition such as "reflect light" or "see clearly the screen" can appear in the direct-view display screen of photographer, influences the photographer and judges, and the photo effect of shooing is unsatisfactory. In order to achieve the shooting effect, many shooting enthusiasts choose to use a right-angle viewfinder for observation, and the picture seen by the right-angle viewfinder is more concentrated and brighter, but many shooting cameras at present cannot directly support the installation of the right-angle viewfinder.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a right angle view finder switching device aims at solving the problem that present camera can not install the right angle view finder.
In order to realize the above object, the utility model provides a right angle view finder switching device, which comprises a mounting bracket, the installing support is including the first connecting plate and the second connecting plate that connect gradually, the second connecting plate is along extending from top to bottom, the lower extreme of second connecting plate is formed with the installation framework, the installation framework is used for the viewing window of shroud shooting camera, and supplies the installation end demountable installation of right angle view finder, first connecting plate is along extending to the front and back for plant and be fixed in the hot boots socket of flash light.
Optionally, a stud is arranged on the upper end face of the first connecting plate and used for upwards protruding the hot shoe socket of the flash lamp;
the right-angle viewfinder adapter device further comprises a fastening nut, the fastening nut is fixed with the stud in a threaded mode, and the lower end of the fastening nut is used for abutting against the upper end face of the flashlight hot shoe socket.
Optionally, the mounting end is provided with two first sliding pieces;
the installation framework all is equipped with first spout, two on two lateral walls to setting up about along first spout all extends along from top to bottom, and two first spout is the through setting along two walls that set up from top to bottom, two first spout is used for supplying two first gleitbretter slidable mounting.
Optionally, the outer side surface of the mounting end is provided with an external thread to form a threaded section;
the inner wall surface of the mounting frame body is provided with internal threads so as to be in threaded connection with the threaded section.
Optionally, an outer diameter of the threaded section is smaller than an outer diameter of the right angle viewfinder;
the right-angle viewfinder adapter device further comprises a locking ring, the locking ring is sleeved on the thread section in a threaded manner, and two ends of the locking ring respectively support against the mounting frame body and the outer wall of the right-angle viewfinder.
Optionally, the right-angle viewfinder adapter further includes a adapter frame, and the adapter frame is disposed between the mounting frame body and the mounting end.
Optionally, two outer side walls of the mounting frame body arranged in the left-right direction are respectively provided with a first sliding chute, the two first sliding chutes extend in the up-down direction, and the two first sliding chutes are arranged in a through manner along two wall surfaces arranged in the up-down direction;
the adapter frame orientation the tip correspondence of installation framework is equipped with two second gleitbretters, two second gleitbretter slidable mounting extremely two in the first spout, the adapter frame deviates from the tip of installation framework is used for supplying the mounting end is fixed.
Optionally, the transfer frame is further provided with a stop plate, the stop plate is arranged between the two second sliding pieces and is respectively connected with the upper ends of the two second sliding pieces, and the stop plate is used for abutting against the upper end face of the installation frame body.
Optionally, the outer side surface of the mounting end is provided with an external thread to form a threaded section;
the inner wall surface of the end part, facing the mounting end, of the transfer frame is provided with internal threads so as to be in threaded connection with the threaded section.
Optionally, the adapter frame is sleeved outside the mounting end, an inner wall surface of the adapter frame facing the end of the mounting end is provided with a plurality of threaded holes, and the plurality of threaded holes are arranged at intervals;
the right-angle viewfinder adapter device further comprises a plurality of locking bolts, and the plurality of locking bolts penetrate through the plurality of threaded holes to be tightly abutted against the outer side face of the mounting end.
In the technical scheme of the utility model, the first connecting plate and the second connecting plate are perpendicular to each other to form an L-shaped structure, so that the first connecting plate and the second connecting plate are respectively matched with a flash lamp hot shoe socket and a viewfinder on different planes, the first connecting plate is used for integrally fixing the device on the flash lamp hot shoe socket, the mounting frame body on the second connecting plate is used for mounting the right angle viewfinder, thereby providing a mounting position for the mounting end of the right angle viewfinder, the appearance design of the mounting frame body is matched with the interface of the right angle viewfinder, when in use, the eyes of a photographer correspond to the viewing end, thereby the picture of the viewfinder in the mounting frame body can be observed through the internal structure of the right angle viewfinder, and the problem that the existing shooting camera can not directly mount the right angle viewfinder is solved, the scheme has the advantages of simple structure, convenience in installation and strong universality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a perspective view of a camera;
fig. 2 is a schematic perspective view of a first embodiment of a right angle viewfinder adapter provided by the present invention;
FIG. 3 is a perspective view of the mounting bracket of FIG. 2;
FIG. 4 is a perspective view of the right angle viewfinder of FIG. 2;
FIG. 5 is a schematic perspective view of a second embodiment of a right angle viewfinder adapter of the present invention;
FIG. 6 is a perspective view of the right angle viewfinder of FIG. 5;
fig. 7 is a schematic perspective view of a right angle viewfinder adapter according to a third embodiment of the present invention;
FIG. 8 is a perspective view of the junction box of FIG. 7;
fig. 9 is a perspective view of a fourth embodiment of the right angle viewfinder adapter of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the film camera era and early digital camera era, the use of right angle framing is very common in order to realize low-setting shooting. In the past, camera manufacturers can use a right-angle viewfinder for cameras, the cameras are provided with a structure design which can take down a lens hood on a viewfinder, and some exposed viewfinder can be provided with a square opening which can be inserted into the right-angle viewfinder; some of them have a round mouth with screw thread, and the right angle viewfinder with round mouth can be rotationally fixed on the machine body. With the appearance of a reversible LCD display screen of a digital camera, more and more users do not use a right-angle viewfinder to meet the requirement of low-position shooting, but more reversible LCD displays are adopted to display shot objects, so that the requirement of low-position shooting is met. The installation interface that causes most camera viewfinder now does not keep the right angle viewfinder, but many photographic fan still are used to the right angle viewfinder, and this is because the picture that the right angle viewfinder was seen is more concentrated, and is brighter, and eyes are pasted on the viewfinder, and energy can concentrate, take a candid photograph wild animal's splendid movements more easily.
In view of this, the utility model provides a right angle view finder switching device solves the current interface problem that the camera can not general right angle view finder. Fig. 1 to 9 show an embodiment of the right angle viewfinder adapter of the present invention.
Fig. 1 is a schematic view of a camera 200 in the present application, a flash hot shoe socket 201 is disposed at a top end of the camera 200, and is mainly used for connecting an external flash, and along with the increase of camera functions, the flash hot shoe socket may further be connected with external devices such as a flash initiator and a microphone, a finder window 202 of the camera 200 is located on a side surface and perpendicular to a plane where the flash hot shoe socket 201 is located, and the present application mainly installs a right-angle finder through the flash hot shoe socket 201.
The interfaces of the common right-angle viewfinder are divided into two types, one type is a slot interface, the cross section is square, please refer to fig. 4, two first sliding pieces 211 are arranged at the mounting end 21, the upper ends of the two first sliding pieces 211 are connected through a coaming plate, a slot body is formed by enclosure, and the common slot interface is generally a dovetail slot structure; in another embodiment, the cross section of the threaded interface is circular, and referring to fig. 6, an external thread is provided on an outer side surface of the mounting end 21 to form a threaded section 21 a.
In the technical solution of the present invention, the first connecting plate 11 and the second connecting plate 12 are perpendicular to each other to form an L-shaped structure, so that the first connecting plate 11 and the second connecting plate 12 are respectively matched with the hot shoe socket 201 for flash lamp and the viewfinder 202 located on different planes, the first connecting plate 11 is used to fix the whole device on the hot shoe socket 201 for flash lamp, the mounting frame 121 on the second connecting plate 12 is used for mounting the right angle viewfinder 2, so as to provide a mounting position for the mounting end 21 of the right angle viewfinder 2, the shape of the mounting frame 121 is designed to match the interface of the right angle viewfinder 2, when in use, the eyes of the photographer correspond to the viewing end 22, so as to observe the picture of the viewfinder 202 in the mounting frame 121 through the internal structure of the right angle viewfinder 2, thereby solving the problem that the existing shooting camera cannot directly mount the right angle viewfinder 2, the scheme has the advantages of simple structure, convenience in installation and strong universality.
Referring to fig. 2 to 3, the adapter 100 of the rectangular viewfinder 2 includes a mounting bracket 1, the mounting bracket 1 includes a first connecting plate 11 and a second connecting plate 12 connected in sequence, the second connecting plate 12 extends along a vertical direction, a mounting frame 121 is formed at a lower end of the second connecting plate 12, the mounting frame 121 is used for covering a viewfinder 202 of the camera 200 and detachably mounting a mounting end 21 of the rectangular viewfinder 2, and the first connecting plate 11 extends along a longitudinal direction and is used for being inserted and fixed in a hot shoe socket 201 of a flash lamp.
In order to stably fix the first connecting plate 11 to the flash lamp hot shoe socket 201, a stud 13 is arranged on the upper end surface of the first connecting plate 11, the stud 13 is used for upwards protruding the flash lamp hot shoe socket 201, the right-angle viewfinder 2 adapter 100 further comprises a fastening nut 3, the fastening nut 3 is in threaded fixation with the stud 13, and the lower end of the fastening nut 3 is used for tightly abutting against the upper end surface of the flash lamp hot shoe socket 201. During installation, the first connecting plate 11 is slidably inserted into the flash hot shoe socket 201, the stud 13 is located in the middle of the flash hot shoe socket 201 and protrudes upwards from the flash hot shoe socket 201, a photographer mounts the fastening nut 3 onto the stud 13 in a threaded manner, screws the fastening nut 3 until the fastening nut 3 is in abutting fit with the flash hot shoe socket 201, and then the first connecting plate 11 is fixed with the flash hot shoe socket 201, the width of the first connecting plate 11 is designed to be matched with the width of the flash hot shoe socket 201, so that the left and right directions and the up and down directions are fixed at the same time, and the front and back positions of the mounting bracket 1 are also limited due to the fact that the second connecting plate 12 abuts against the viewfinder 202, so that the rectangular viewfinder 2 can be stably installed.
In order to directly mount the right angle viewfinder 2 adapted to the slot type interface, in a first embodiment, referring to fig. 2, the cross section of the mounting frame body 121 is square, the two outer side walls disposed along the left and right directions are respectively provided with a first sliding slot 1211, the two first sliding slots 1211 are respectively extended along the up and down directions, the two first sliding slots 1211 are disposed through the two wall surfaces disposed along the up and down directions, the two first sliding slots 1211 are used for slidably mounting the two first sliding pieces 211, specifically, the slot interface of the right angle viewfinder 2 is buckled outside the mounting frame body 121, and the two first sliding pieces 211 are slidably inserted into the two first sliding slots 1211 from top to bottom, so as to complete abutting mounting, because the slot interface is three-sided enclosure, the top enclosing plate abuts against the upper end surface of the mounting frame body 121, so configured, the mounting frame body 121 provides a mounting position for the mounting corresponding to the position of the viewfinder 202, the installation of the slot interface type right-angle viewfinder 2 can be arranged on any camera, the structure is simple, and the cost is low.
In order to directly mount the right angle viewfinder 2 adapted to the screw interface, in the second embodiment, referring to fig. 5 to 6, the cross section of the mounting end 21 is circular, the outer side surface thereof is provided with an external thread to form a threaded section 21a, and the inner wall surface of the mounting frame 121 is provided with an internal thread to be in threaded connection with the threaded section 21 a. At this moment, the installation framework 121 can be directly set to be cylindrical, and an internal thread is arranged in the installation framework 121, so that the thread matching is carried out, the design and the processing are convenient, the installation framework 121 can be set to be square, and an inner hole is set to be round and is installed in a matching mode, so that the limitation is not made. In this embodiment, the mounting frame 121 is integrally formed in a cylindrical shape, like a sleeve structure.
Further, the outer diameter of the threaded section 21a is smaller than the outer diameter of the right angle viewfinder 2, that is, a step surface is correspondingly formed on the outer wall of the bottom of the threaded section 21a, the adapter 100 of the right angle viewfinder 2 further includes a locking ring 4, the locking ring 4 is sleeved on the threaded section 21a in a threaded manner, and two ends of the locking ring 4 respectively abut against the outer walls of the mounting frame 121 and the right angle viewfinder 2. The design of the locking ring 4 improves the fastening performance of the threaded fit between the right angle viewfinder 2 and the mounting frame 121, the locking ring 4 is firstly screwed into the threaded section 21a, the locking ring 4 is also in threaded fit, so that the locking ring 4 does not block the front end of the threaded section 21a, then the right angle viewfinder 2 is screwed into the mounting frame 121, and after the locking ring 4 is screwed to a required position, the locking ring 4 is reversely screwed to abut against the end surface of the mounting frame 121, so that the mounting and fixing purposes are achieved.
In the second embodiment, the first connection plate 11 is mounted in the same manner as in the first embodiment, that is, fixed by the stud 13 and the fastening nut 3 being manually tightened.
Considering that a photographer may purchase rectangular viewfinders 2 with different specifications and/or interfaces according to different requirements, referring to fig. 7 to 9, in order to better adapt to structures of different rectangular viewfinders 2, the adapter 100 of the rectangular viewfinder 2 further includes an adapter frame 5, where the adapter frame 5 is disposed between the mounting frame 121 and the mounting end 21, at this time, the mounting frame 121 may be adapted to an interface of one rectangular viewfinder 2, and the adapter frame 5 may be adapted to an interface of another rectangular viewfinder 2, so that the adapter frame 5 is adapted to interfaces of two rectangular viewfinders 2 by mounting or removing the adapter frame 5, or the mounting frame 121 and the adapter frame 5 are adapted to rectangular viewfinders 2 with the same form but different sizes, and the universality is stronger.
Referring to fig. 7 to 8, in a third embodiment, two outer side walls of the mounting frame body 121 disposed along the left-right direction are respectively provided with a first sliding slot 1211, the two first sliding slots 1211 are respectively extended along the up-down direction, and the two first sliding slots 1211 are disposed through two wall surfaces disposed along the up-down direction, in this embodiment, the mounting frame body 121 can be directly adapted to the mounting of the slot interface right angle viewfinder 2, the end of the transfer frame 5 facing the mounting frame body 121 is correspondingly provided with two second sliding pieces 52, the two second sliding pieces 52 are slidably mounted in the two first sliding slots 1211, the end of the transfer frame 5 facing away from the mounting frame body 121 is used for fixing the mounting end 21, so that when the right angle viewfinder 2 adapted to the screw interface or the slot interface of other specifications is required to be mounted and transferred through the transfer frame 5, thus the arrangement does not need to match with a plurality of mounting brackets 1, more convenient and practical.
Further, the transfer frame 5 is further provided with a stop plate 53, the stop plate 53 is arranged between the two second sliding pieces 52 and is respectively connected with the upper ends of the two second sliding pieces 52, and the stop plate 53 is used for abutting against the upper end face of the installation frame body 121. Therefore, the end part of the transfer frame 5 is enclosed to form a groove body with three enclosed sides, the stop plate 53 is tightly abutted against the upper end surface of the installation frame body 121 and is installed in place, and the structure is simple, the installation is convenient and the cost is low.
In order to adapt the right angle viewfinder 2 with two different interfaces, the inner wall surface of the end part of the transfer frame 5 facing the mounting end 21 is provided with internal threads to be in threaded connection with the threaded section 21 a. That is, in the third embodiment, the transfer frame 5 is disposed in a cylindrical shape on the side facing the mounting end 21 and in a square shape on the side facing the mounting frame 121.
It should be noted that in the third embodiment, the locking ring 4 is also provided between the transfer frame 5 and the rectangular viewfinder 2, so as to improve the stability of the connection. The first connecting plate 11 is mounted in the same manner as in the first embodiment, i.e. fixed by means of the studs 13 and by manually tightening the fastening nuts 3.
The present invention does not limit the specific form of the adapting and fixing of the adapting frame 5, in the fourth embodiment, please refer to fig. 9, the adapting frame 5 is sleeved on the outer side of the mounting end 21, the inner wall surface of the adapting frame 5 facing the end portion of the mounting end 21 is provided with a plurality of threaded holes 51, the plurality of threaded holes 51 are arranged at intervals, the adapting device 100 of the right angle viewfinder 2 further comprises a plurality of locking bolts 6, the plurality of locking bolts 6 pass through the plurality of threaded holes 51 to tightly abut against the outer side surface of the mounting end 21, at this time, the mounting end 21 of the right angle viewfinder 2 may have no thread, the cylindrical mounting end 21 is directly inserted into the inner hole of the adapting frame 5, the locking bolts 6 are screwed, thereby fixing the right angle viewfinder 2 and the adapting frame 5, so as to set different screwing lengths in the inner hole of the adapting frame 5 through the plurality of locking bolts 6, the orientation of the right angle viewfinder 2 can also be fine-tuned.
In the fourth embodiment, the first connection plate 11 is mounted in the same manner as in the first embodiment, that is, fixed by the stud 13 and the fastening nut 3 being manually tightened.
In other embodiments, the mounting frame body 121 may be configured to be in threaded engagement with the adapting frame 5, and the adapting frame 5 is in sliding engagement with the right angle viewfinder 2, so that the right angle viewfinder 2 with two interfaces can be mounted in an adaptive manner, which will not be described in detail herein.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a right angle view finder switching device for install the right angle view finder on shooing the camera, the top of shooing the camera is equipped with the hot boots socket of flash light, the right angle view finder has the installation end and the observation end that are the contained angle setting, the observation end is used for supplying people's eye to press close to the observation, a serial communication port, right angle view finder switching device includes the installing support, the installing support is including the first connecting plate and the second connecting plate that connect gradually, the second connecting plate is along upper and lower to extending, the lower extreme of second connecting plate is formed with the installation framework, the installation framework is used for the viewing window that the camera was shot to the shroud, and supplies the installation end demountable installation of right angle view finder, first connecting plate is along the fore-and-aft extension for plant and be fixed in the hot boots socket of flash light.
2. The adapter of claim 1, wherein the first connecting plate has a stud on the upper end surface for protruding the hot shoe socket of the flash upward;
the right-angle viewfinder adapter device further comprises a fastening nut, the fastening nut is fixed with the stud in a threaded mode, and the lower end of the fastening nut is used for abutting against the upper end face of the flashlight hot shoe socket.
3. The right angle viewfinder adapter of claim 1 wherein said mounting end has two first slides;
the installation framework all is equipped with first spout, two on two lateral walls to setting up about along first spout all extends along from top to bottom, and two first spout is the through setting along two walls that set up from top to bottom, two first spout is used for supplying two first gleitbretter slidable mounting.
4. The right angle viewfinder adapter of claim 1 wherein an outer side of said mounting end is externally threaded to form a threaded segment;
the inner wall surface of the mounting frame body is provided with internal threads so as to be in threaded connection with the threaded section.
5. The right angle viewfinder adapter of claim 4 wherein an outer diameter of said threaded section is smaller than an outer diameter of said right angle viewfinder;
the right-angle viewfinder adapter device further comprises a locking ring, the locking ring is sleeved on the thread section in a threaded manner, and two ends of the locking ring respectively support against the mounting frame body and the outer wall of the right-angle viewfinder.
6. The adapter of claim 1, further comprising an adapter frame for being disposed between the mounting frame and the mounting end.
7. The right angle viewfinder adapter of claim 6, wherein the two outer side walls of the mounting frame body arranged along the left-right direction are respectively provided with a first sliding groove, the two first sliding grooves extend along the up-down direction, and the two first sliding grooves are arranged along the two wall surfaces arranged along the up-down direction in a penetrating way;
the transfer frame moves towards the end portion of the installation frame body is correspondingly provided with two second sliding sheets, the two second sliding sheets are slidably installed in the two first sliding grooves, and the transfer frame deviates from the end portion of the installation frame body and is used for supplying the fixing end.
8. The adapter device of claim 7, wherein the adapter frame further comprises a stop plate, the stop plate is disposed between the two second sliding pieces and connects the upper ends of the two second sliding pieces, and the stop plate abuts against the upper end surface of the mounting frame.
9. The adapter of claim 6 or 7, wherein the outer side of the mounting end is externally threaded to form a threaded section;
the inner wall surface of the end part, facing the mounting end, of the transfer frame is provided with internal threads so as to be in threaded connection with the threaded section.
10. The adapter device of claim 6 or 7, wherein the adapter frame is sleeved outside the mounting end, and a plurality of threaded holes are arranged on the inner wall surface of the end part of the adapter frame facing the mounting end at intervals;
the right-angle viewfinder adapter device further comprises a plurality of locking bolts, and the plurality of locking bolts penetrate through the plurality of threaded holes to be tightly abutted against the outer side face of the mounting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220682418.5U CN217305683U (en) | 2022-03-25 | 2022-03-25 | Right angle viewfinder adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220682418.5U CN217305683U (en) | 2022-03-25 | 2022-03-25 | Right angle viewfinder adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217305683U true CN217305683U (en) | 2022-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220682418.5U Active CN217305683U (en) | 2022-03-25 | 2022-03-25 | Right angle viewfinder adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217305683U (en) |
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2022
- 2022-03-25 CN CN202220682418.5U patent/CN217305683U/en active Active
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