Adjustable photography shading device

Abstract

The utility model provides an adjustable photographic device, which comprises a connecting seat, a first light shielding plate, a second light shielding plate, a third light shielding plate and a fourth light shielding plate, wherein the first light shielding plate and the third light shielding plate are pivotally arranged on two opposite sides of the connecting seat, and the second light shielding plate and the fourth light shielding plate are arranged on the other two opposite sides of the connecting seat so as to form a light guide channel communicated with the opening with the first light shielding plate and the third light shielding plate; the adjustable photographing shading device is provided with an opening, a light outlet opposite to the opening is formed, and the shape and the size of the light outlet of the adjustable photographing shading device are adjusted based on flexible pivoting of the shading plates so as to meet different photographing lamplight requirements.

Description

Technical Field

[0001] This utility model relates to the field of photographic devices, and in particular to an adjustable photographic light-blocking device. Background Technology

[0002] A lens hood is an important component of a photographic optical system, its core function being to control stray light and achieve the desired shooting effect. Indoor photography involves different types of photography, such as portraits, product photography, and still life. Different scenes require different lighting equipment and lens hood accessories to create a suitable shooting environment. In photography, the angle and range of light from the lighting fixtures directly affect the final image.

[0003] like Figure 1 As shown, the Chinese utility model patent with announcement number CN115145092A discloses a "constantly lit lamp for photographic assistance". It includes a lamp housing (1), a lamp shade plate (3), a regulating cylinder (4), a connecting plate (6), and a lamp head (7). The lamp shade plate (3) is set on the outer wall of one end of the lamp housing (1) through a rotating shaft seat (5). The two ends of the regulating cylinder (4) are respectively hinged to the lamp shade plate (3) and the lamp housing (1) to control the tilt angle of the lamp shade plate (3). The connecting plate (6) is also set on the outer wall of the other end of the lamp housing (1) through a rotating shaft seat (6) to be installed and fixed with an external lamp holder. The lamp head (7) is installed in the lamp housing (1). The aforementioned photographic auxiliary constant-on light fixture forms a light-shielding channel for the light head (7) by tilting the lamp cover plate (3) open relative to the lamp housing (1). However, it overlooks the fact that when each lamp cover plate is tilted at an angle greater than 90° when the lamp housing (1) is open, a V-shaped light leakage channel is formed between adjacent lamp cover plates (3), causing the light from the lamp head (7) to be exposed outside the lamp housing (1). The excessive tilt angle of the lamp cover plate (3) leads to light-shielding failure. Therefore, the photographic auxiliary constant-on light fixture only provides light-shielding within a small angle range and cannot cover all usage scenarios. The photographic auxiliary constant-on light fixture cannot meet actual light-shielding requirements. In addition, since each lamp cover plate (3) is a flat plate, when each lamp cover plate (3) is folded towards the center of the lamp housing (1), the lamp head (7) is easily damaged due to the lack of a safety gap between the inner surface of the lamp cover plate (3) and the lamp head. Utility Model Content

[0004] One objective of this invention is to provide an adjustable photographic light-blocking device, wherein the adjustable photographic light-blocking device can adaptively adjust the shading range of the adjustable photographic light-blocking device to meet actual light-blocking needs.

[0005] Another objective of this invention is to provide an adjustable photographic light-blocking device, wherein the adjustable photographic light-blocking device can be paired and connected with an external lighting device to achieve a light-blocking effect on the light from the lighting device.

[0006] Another objective of this invention is to provide an adjustable photographic light shield, wherein the adjustable photographic light shield can be stored without damaging the lamp head of the lighting device, thus making it convenient to carry when going out.

[0007] Another objective of this invention is to provide an adjustable photographic light-shielding device, wherein the adjustable photographic light-shielding device includes a connecting base, a first light-shielding plate, a second light-shielding plate, a third light-shielding plate, and a fourth light-shielding plate, wherein the connecting base has an opening in the middle, and the first light-shielding plate and the third light-shielding plate are pivotally disposed on two opposite sides of the connecting base, and the second light-shielding plate and the fourth light-shielding plate are pivotally disposed on the other two opposite sides of the connecting base, so as to be suitable for the first light-shielding plate, the second light-shielding plate, the third light-shielding plate, and the fourth light-shielding plate to be positioned on the other two opposite sides of the connecting base. The fourth light-shielding plate is pivotally disposed around the circumference of the connecting seat, forming a light guide channel of the adjustable photographic light-shielding device and forming a light outlet opposite to the opening. The size and shape of the light outlet change with the degree of pivoting of each light-shielding plate on the connecting seat, corresponding to the change in the size of the light outlet. No light leakage occurs during the pivoting process of the first, second, third, and fourth light-shielding plates on the connecting seat, and the adjustable photographic light-shielding device has a good light-shielding effect.

[0008] Another objective of this invention is to provide an adjustable photographic light shield, wherein the first light shield, the second light shield, the third light shield, and the fourth light shield are pivotally disposed around the circumference of the connecting base, and an external lighting device is disposed on one side of the opening. When the lighting device is powered on, the light emitted by the lighting device is concentrated at the light outlet and directed towards a designated area. Based on the pivotability of each light shield, the adjustable photographic light shield can be folded and stored for easy carrying.

[0009] Another objective of this utility model is to provide an adjustable photographic light-blocking device, wherein the second light-blocking plate and the fourth light-blocking plate each include a main light-blocking plate and two auxiliary light-blocking plates. The main light-blocking plate includes two hand-tightening components. One end of the main light-blocking plate is pivotally connected to the connecting seat, with the end of the main light-blocking plate connected to the connecting seat as the bottom end. The two auxiliary light-blocking plates of the same light-blocking plate are extendably disposed on the main light-blocking plate. The two hand-tightening components are respectively disposed on both sides of the end of the main light-blocking plate opposite to the bottom end. The tightness of the main light-shielding plate can be manually adjusted to secure each of the secondary light-shielding plates. Each secondary light-shielding plate has a pointed portion, which is positioned on the side opposite to the pivot axis and biased towards at least one end of that side. This is suitable for the secondary light-shielding plates to extend outwards relative to the bottom end of the same main light-shielding plate. When the side of the secondary light-shielding plate with the pointed portion extends to the position where the main light-shielding plate is located, the pointed portion is limited, and the extension of the secondary light-shielding plate on that side reaches its limit, thus maximizing the area of ​​the corresponding main light-shielding plate. Based on the extension of each secondary light-shielding plate on both sides of the main light-shielding plate, the shape and area of ​​the second and fourth light-shielding plates can be adjusted to adjust the size of the light outlet.

[0010] Another objective of this invention is to provide an adjustable photographic light-blocking device, wherein, based on the pivotability of the first, second, third, and fourth light-blocking plates at the connecting seat, and corresponding to the flexibility of each of the secondary light-blocking plates relative to the second and fourth light-blocking plates, the light outlet has different shapes and sizes. Each of the secondary light-blocking plates further includes a locking mechanism, wherein two secondary light-blocking plates of the same light-blocking plate have a side that is close to each other and a side that is opposite to each other. The positions are set on opposite sides, suitable for the first, second, third, and fourth light-shielding plates to be pivotally disposed around the circumference of the connecting seat. Each of the secondary light-shielding plates is extended on the second and fourth light-shielding plates and matches the edges of the first and third light-shielding plates. The side of the secondary light-shielding plate with the engaging position matches the shape of the side near the bottom end of the main light-shielding plate to avoid light leakage between adjacent light-shielding plates.

[0011] Another objective of this invention is to provide an adjustable photographic light shield, wherein two secondary light shields of the same main light shield are arranged on opposite sides of the main light shield, so that the secondary light shields can be smoothly extended on the main light shield, while accommodating the placement of larger secondary light shields on the main light shield. The first and third light shields each have a base plate, and the first and third light shields are pivotally mounted on opposite sides of the connecting seat with one side of the base plate. The other side of the base plate is bent inward to form the first and third light shields. With the other side of the base plate bent inward, the adjustable photographic light shield, in its retracted state, maintains a safe distance between the inner surface of the light shield pivotally stored on the connecting seat and the light source surface of the lighting device, thus protecting the light source surface of the lighting device.

[0012] Another objective of this invention is to provide an adjustable photographic light-blocking device, wherein two elastic clips are respectively provided on the side of the first light-blocking plate away from the pivot axis and on the side of the third light-blocking plate away from the pivot axis. The two elastic clips of the same light-blocking plate are arranged opposite to each other. The elastic clips are used to clamp filter paper and / or diffuser cloth. The filter paper and / or diffuser cloth are elastically clamped by the four corners of each elastic clip. Based on the physical changes caused by light passing through the filter paper and diffuser cloth, the optical effects such as the color, intensity, directionality, uniformity, and shadow effect of the light are affected. The adjustable photographic light-blocking device can meet the light-blocking requirements and adjust the light.

[0013] Another objective of this invention is to provide an adjustable photographic light-shielding device, wherein the connecting seat includes a connecting groove having a slot that matches the opening. The slot is aligned with the opening and the connecting groove is connected to the connecting seat. The surface of the connecting groove that connects to the connecting seat has a groove edge extending radially toward the center. The groove edge is provided with a plurality of screw holes spaced apart. The connecting groove is connected to the connecting seat in a detachable connection manner by multiple sets of connecting components passing through the corresponding screw holes. The connecting groove also has at least two heat dissipation vents, each of which is spaced apart along the groove edge, so that the heat generated by the light source surface of the lighting device is dissipated, further protecting the lighting device.

[0014] According to one aspect of the present invention, an adjustable photographic light shield is provided, wherein the adjustable photographic light shield includes:

[0015] The system comprises a connector, a first light-shielding plate, a second light-shielding plate, a third light-shielding plate, and a fourth light-shielding plate. The connector has an opening in its center. The first and third light-shielding plates are pivotally disposed on opposite sides of the connector. The second and fourth light-shielding plates are pivotally disposed on the other two opposite sides of the connector, forming a light-guiding channel communicating with the first and third light-shielding plates and creating a light-emitting port opposite the opening. Each of the second and fourth light-shielding plates includes a... The system comprises a main light-shielding plate and two secondary light-shielding plates, wherein one end of the main light-shielding plate is pivotally connected to the connecting seat, with the end of the main light-shielding plate connected to the connecting seat as the bottom end. The two secondary light-shielding plates of the same light-shielding plate are extendably disposed on the main light-shielding plate, and the pivot axes of the two secondary light-shielding plates are respectively located on two opposite sides of the bottom end. Based on the pivoting of the secondary light-shielding plates on the main light-shielding plate, the secondary light-shielding plates can extend and open or close on both sides of the main light-shielding plate, thereby adjusting the shape and area of ​​the second light-shielding plate and the fourth light-shielding plate.

[0016] In one embodiment, each of the main light-shielding plates includes two hand-tightening components, which are respectively disposed on both sides of the main light-shielding plate at the end opposite to the bottom end. Each of the secondary light-shielding plates has a pointed portion, which is disposed on the side of the secondary light-shielding plate opposite to the pivot axis and biased toward at least one end of that side.

[0017] In one embodiment, the two secondary light-shielding plates of the same main light-shielding plate are arranged in a state where they are located on two opposite sides of the main light-shielding plate.

[0018] In one embodiment, the first light-shielding plate and the third light-shielding plate each have a substrate, and the first light-shielding plate and the third light-shielding plate are pivotally disposed on opposite sides of the connecting seat with one side of the substrate, and the other side of the substrate is bent inward to form the first light-shielding plate and the third light-shielding plate.

[0019] In one embodiment, the first light-shielding plate and the third light-shielding plate are respectively provided with two elastic clips on the side away from the pivot axis, and the two elastic clips of the same light-shielding plate are arranged opposite to each other.

[0020] In one embodiment, the adjustable photographic shading device further includes a connecting groove having a notch that matches the opening, wherein the notch is detachably connected to the opening and the connecting groove is connected to the connecting seat.

[0021] In one embodiment, the surface where the connecting groove connects to the connecting seat has a groove edge extending radially toward the center, and the groove edge is provided with a plurality of screw holes spaced apart.

[0022] In one embodiment, each of the sub-shields further includes a locking position, wherein the two sub-shields of the same light shield have a side that is close to each other and a side that is opposite to each other, and the locking position is provided on the opposite side so that when each sub-shield is in a pivoted and unfolded state of the second light shield and the fourth light shield, the corresponding locking position matches the edge of the first light shield and the third light shield.

[0023] In one embodiment, the side of the secondary light-shielding plate having the engagement position matches the shape of the side of the primary light-shielding plate near the bottom end.

[0024] In one embodiment, the connecting groove further has at least two heat dissipation vents, each of which is spaced apart along the edge of the groove.

[0025] The further objectives and advantages of this invention will become fully apparent from the following description and accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an existing photographic auxiliary light fixture that is always on.

[0027] Figure 2 This is a schematic diagram of a photographic lamp with an adjustable photographic light shield according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the structure of a photographic lamp according to the above embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of a light outlet of the adjustable photographic light-blocking device according to the above embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of another state of the light outlet of the adjustable photographic light-blocking device according to the above embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the adjustable photographic light-blocking device according to the above embodiments of the present invention.

[0032] Figure 7 This is a partial structural schematic diagram of the adjustable photographic light-blocking device according to the above embodiments of the present invention.

[0033] Figure 8This is a partial structural schematic diagram of the adjustable photographic light-blocking device according to the above embodiments of the present invention.

[0034] Figure 9 This is an exploded view of the adjustable photographic light-blocking device according to the above embodiments of the present invention.

[0035] Figure 10 This is a partial cross-sectional schematic diagram of a connecting groove of the adjustable photographic light-shielding device according to the above embodiment of the present invention. Detailed Implementation

[0036] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0037] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0038] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0039] Refer to the accompanying drawings in the specification of this utility model. Figures 2 to 10The structure of an adjustable photographic light-blocking device 100 according to the present invention is illustrated. The adjustable photographic light-blocking device 100 includes a connecting base 50, a first light-blocking plate 10, a second light-blocking plate 20, a third light-blocking plate 30, and a fourth light-blocking plate 40. An opening 51 is provided in the middle of the connecting base 50. The first light-blocking plate 10 and the third light-blocking plate 30 are pivotally disposed on two opposite sides of the connecting base 50. The second light-blocking plate 20 and the fourth light-blocking plate 40 are pivotally disposed on the other two opposite sides of the connecting base 50 to form a light-guiding channel communicating with the first light-blocking plate 10 and the third light-blocking plate 30 through the opening 51, and to form a light-emitting port 110 opposite to the opening 51.

[0040] In detail, such as Figures 6-8 As shown, the second light-shielding plate 20 and the fourth light-shielding plate 40 each include a main light-shielding plate 23 and two secondary light-shielding plates 201. The main light-shielding plate 23 is pivotally connected to the connecting seat 50 at one end, with the end of the main light-shielding plate 23 connected to the connecting seat 50 as the bottom end. The two secondary light-shielding plates 201 of the same light-shielding plate are extended and arranged on the main light-shielding plate 23. The pivot axes of the two secondary light-shielding plates 201 are located on two opposite sides of the bottom end, so that based on the pivot of the secondary light-shielding plates 201 on the main light-shielding plate 23, the secondary light-shielding plates 201 can be extended and opened or closed on both sides of the main light-shielding plate 23, thereby adjusting the shape and area of ​​the second light-shielding plate 20 and the fourth light-shielding plate 40.

[0041] Specifically, to ensure the structural stability of the adjustable photographic light-shielding device 100 by pivoting and limiting the secondary light-shielding plate 201, each of the main light-shielding plates 23 includes two hand-tightening members 21, which are respectively disposed on both sides of the main light-shielding plate 23 opposite to the bottom end. Each secondary light-shielding plate 201 has a pointed portion 22, which is disposed on the side of the secondary light-shielding plate 201 opposite to the pivot axis and biased towards at least one end of that side. The tightness of the hand-tightening member 21 on the main light-shielding plate 23 can be manually adjusted. The two secondary light-shielding plates of the same main light-shielding plate 23 are extended on both sides of the light-shielding plate, and the tightness of the hand-tightening member 21 is adjusted accordingly to fix the secondary light-shielding plate 201. When the secondary light-shielding plate 201 extends to the position where the main light-shielding plate 23 is located with the hand-tightening member 21, the tip 22 is limited and the extension of the secondary light-shielding plate 201 on that side reaches its limit, and the area of ​​the corresponding main light-shielding plate 23 reaches its maximum.

[0042] Preferably, the tip 22 can also be provided on the opposite side of the pivot axis of the secondary light-shielding plate 201, so that when the secondary light-shielding plate 201 is closed inward by the main light-shielding plate 23, the tip 22 on the opposite side of the pivot axis of the secondary light-shielding plate 201 is fixed, and at this time, the secondary light-shielding plate 203 is housed in the main light-shielding plate 23. This utility model does not limit this.

[0043] It is worth mentioning that, for reference Figures 3-4 As shown, based on the fact that each of the secondary light-shielding plates 201 extends outward on both sides of the main light-shielding plate 23, the shape and area of ​​the corresponding second light-shielding plate 20 and the fourth light-shielding plate 40 are adjusted, and based on the different pivot angles of the first light-shielding plate 10, the second light-shielding plate 20, the third light-shielding plate 30 and the fourth light-shielding plate 40 on the connecting seat 50, the shape and size of the light outlet 110 are changed to meet different shooting lighting requirements.

[0044] Specifically, each of the sub-shields 201 further includes a locking position 202. The two sub-shields 201 of the same light shield have a side that is close to each other and a side that is opposite to each other. The locking position 202 is provided on the opposite side so that when each sub-shield 201 is in the state of pivoting and unfolding of the second light shield 20 and the fourth light shield 40, the corresponding locking position 202 matches the edge of the first light shield 10 and the third light shield 30. Correspondingly, during the free pivoting of the first light shield 10 and the third light shield 30 on the left and right of the connecting seat 50 and the second light shield 20 and the fourth light shield 40 on the up and down of the connecting seat 50, there is no gap between the two adjacent light shields, thus avoiding light leakage. The side of the sub-shield 201 with the locking position 202 matches the shape of the side near the bottom end of the main light shield 23.

[0045] refer to Figure 7 As shown, the two secondary light-shielding plates 201, which are disposed on the same main light-shielding plate 23, are arranged in a state where they are located on two opposite sides of the main light-shielding plate 23, so that the secondary light-shielding plates 201 can be smoothly extended on the main light-shielding plate 23, while allowing a larger size of the secondary light-shielding plate 201 to be disposed on the main light-shielding plate 23, thereby increasing the area of ​​the second light-shielding plate 20 and the fourth light-shielding plate 40, and thus increasing the size of the light outlet 110.

[0046] refer to Figure 8As shown, the first light-shielding plate 10 and the third light-shielding plate 30 each have a substrate 12. The first light-shielding plate 10 and the third light-shielding plate 30 are pivotally mounted on opposite sides of the connecting seat 50 with one side of the substrate 12. The other side of the substrate 12 is bent inward to form the first light-shielding plate 10 and the third light-shielding plate 30. The length of the substrate 12 is less than the length of the first light-shielding plate 10 and the third light-shielding plate 30. Two elastic clips 13 are provided on the side of the first light-shielding plate 10 away from the pivot axis and the side of the third light-shielding plate 30 away from the pivot axis, respectively. The two elastic clips 13 of the same light-shielding plate are arranged opposite to each other. The elastic clips are used to clamp filter paper and / or diffuser cloth. When an external lighting device 200 is positioned on one side of the opening 51 of the connecting base 50, with the four corners of the filter paper and / or diffuser cloth being elastically clamped by the elastic clips 13 respectively, the light emitted by the lighting device 200 is blocked by the light shields and passes through the filter paper and / or diffuser cloth to produce an optical effect. The adjustable photographic light shield 100 device can meet the light shielding requirements and adjust the light.

[0047] It is worth noting that the first light-shielding plate 10 and the third light-shielding plate 30 are formed by bending and extending inward from the other side of the substrate 12. The lighting device 200 is disposed on one side of the opening 51 of the connecting seat 50. Corresponding to the state in which the second light-shielding plate 20, the fourth light-shielding plate 40, the first light-shielding plate 10, and the third light-shielding plate 30 are pivotally housed in the connecting seat 50, based on the inward bending of the other side of the substrate 12, there is a safe distance between the inner surface of the second light-shielding plate 20 pivotally housed in the connecting seat 50 and the light source surface of the lighting device 200, which can prevent damage to the lighting device 200 and play a dustproof role for the light source surface of the lighting device 200. Further, refer to Figure 9 As shown, the adjustable photographic light-shielding device 100 further includes a connecting groove 60. The connecting groove 60 has a slot 61 that matches the opening 51. The slot 61 is aligned with the opening 51, and the connecting groove 60 is connected to the connecting seat 50. The outer periphery of the connecting groove 60 has threads to facilitate quick connection between the external lighting device 200 and the connecting groove 60. The surface of the connecting groove 60 that connects to the connecting seat 50 has a groove edge 62 extending radially toward the center. The groove edge 62 is provided with a plurality of screw holes 63 spaced apart. The connecting groove 60 is connected to the connecting seat 50 in a detachable connection manner by multiple sets of connecting components passing through the corresponding screw holes 63. The connecting groove 60 and the connecting seat 50 are connected to form an integral unit.

[0048] In particular, such as Figure 10As shown, the connecting groove 60 also has at least two heat dissipation ports 64, each of which is spaced apart from the groove edge 62. This is suitable for the adjustable photographic light shielding device 100 to be connected to the lighting device 200 via the connecting groove 60 to form a heat dissipation channel 300, so that the heat generated by the light source surface of the lighting device 200 is dissipated, further protecting the lighting device 200.

[0049] It is worth mentioning that the opening 51 has a standard diameter and is suitable for different types of lighting devices, such as Figure 3 As shown, the opening 51 can be adapted to a lighting device with a honeycomb mesh 65 to control the scattering angle of light on each of the adjustment plates based on the honeycomb mesh 65, thereby optimizing the light illumination path. Figure 4 As shown, the opening 51 can also be adapted to a lighting device with ordinary light transmission to meet the user's need for flexible selection of lighting devices.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An adjustable photographic light-blocking device, characterized in that, include: The system comprises a connector, a first light-shielding plate, a second light-shielding plate, a third light-shielding plate, and a fourth light-shielding plate. The connector has an opening in its center. The first and third light-shielding plates are pivotally disposed on opposite sides of the connector. The second and fourth light-shielding plates are pivotally disposed on the other two opposite sides of the connector, forming a light-guiding channel communicating with the first and third light-shielding plates and creating a light-emitting port opposite the opening. Each of the second and fourth light-shielding plates includes a... The system comprises a main light-shielding plate and two secondary light-shielding plates, wherein one end of the main light-shielding plate is pivotally connected to the connecting seat, with the end of the main light-shielding plate connected to the connecting seat as the bottom end. The two secondary light-shielding plates of the same light-shielding plate are extendably disposed on the main light-shielding plate, and the pivot axes of the two secondary light-shielding plates are respectively located on two opposite sides of the bottom end. Based on the pivoting of the secondary light-shielding plates on the main light-shielding plate, the secondary light-shielding plates can extend and open or close on both sides of the main light-shielding plate, thereby adjusting the shape and area of ​​the second light-shielding plate and the fourth light-shielding plate.

2. The adjustable photographic light-blocking device according to claim 1, wherein each of the main light-blocking plates includes two hand-tightening components, the two hand-tightening components are respectively disposed on both sides of the main light-blocking plate at the end opposite to the bottom end, wherein each of the secondary light-blocking plates has a pointed portion, the pointed portion is disposed on the side of the secondary light-blocking plate opposite to the pivot axis, and biased towards at least one end of that side.

3. The adjustable photographic light-shielding device according to claim 1, wherein the two auxiliary light-shielding plates of the same main light-shielding plate are arranged in a state where they are located on two opposite sides of the main light-shielding plate.

4. The adjustable photographic light-shielding device according to claim 1, wherein the first light-shielding plate and the third light-shielding plate each have a base plate, the first light-shielding plate and the third light-shielding plate are pivotally disposed on opposite sides of the connecting seat with one side of the base plate, and the other side of the base plate is bent inward to form the first light-shielding plate and the third light-shielding plate.

5. The adjustable photographic light-shielding device according to claim 4, wherein the side of the first light-shielding plate away from the pivot axis and the side of the third light-shielding plate away from the pivot axis are respectively provided with two elastic clips, and the two elastic clips of the same light-shielding plate are arranged opposite to each other.

6. The adjustable photographic light-shielding device according to claim 1, wherein the adjustable photographic light-shielding device further includes a connecting groove, the connecting groove having a slot that matches the opening, the slot being detachably connected to the opening and the connecting groove being connected to the connecting seat.

7. The adjustable photographic light-shielding device according to claim 6, wherein the surface where the connecting groove connects to the connecting seat has a groove edge extending radially toward the center, and the groove edge is provided with a plurality of screw holes spaced apart.

8. The adjustable photographic light-shielding device according to any one of claims 1-7, wherein each of the secondary light-shielding plates further includes a locking position, wherein the two secondary light-shielding plates of the same light-shielding plate have a side close to each other and a side opposite to each other, and the locking position is provided on the opposite side so that, in the state where each of the secondary light-shielding plates is pivotally extended in the second light-shielding plate and the fourth light-shielding plate, the corresponding locking position matches the edge of the first light-shielding plate and the third light-shielding plate.

9. The adjustable photographic light-shielding device according to claim 8, wherein the side of the secondary light-shielding plate having the engaging position matches the shape of the side of the secondary light-shielding plate near the bottom end of the main light-shielding plate.

10. The adjustable photographic light-shielding device according to claim 7, wherein the connecting groove further has at least two heat dissipation vents, each of the heat dissipation vents being spaced apart along the edge of the groove.

Images