Multifunctional optical filter and imaging device

Abstract

A multi-function optical filter that can expand the range of application of imaging devices is provided. [Solution] The imaging device includes a fixing ring (110) for connecting a lens, a first attachment ring (120) rotatably connected to the fixing ring, a second attachment ring (130) rotatably connected to the first attachment ring and located on the opposite side of the first attachment ring from the fixing ring, a first optical filter member (140) attached to the first attachment ring, a second optical filter member (150) attached to the second attachment ring and located on the opposite side of the first optical filter member from the fixing ring, and a positioning member (160) rotatably connected to the second attachment ring and arranged to abut against the first attachment ring, wherein the rotation axes of the first and second attachment rings overlap and are arranged coaxially, and when the positioning member abuts the first attachment ring, the first and second attachment rings can rotate synchronously relative to the fixing ring. This utility model further provides an imaging device including a lens and a multi-function optical filter (100) attached to the lens.

Description

[Technical Field]

[0001] The present invention relates to the technical field of imaging devices, and more particularly to a multi-function optical filter and an imaging device. [Background technology]

[0002] An optical filter is a photography auxiliary structure attached to the front of a lens, which protects the lens and selectively absorbs different wavelength ranges of light to create special light and shadow effects in the photography product. Conventionally, optical filters are typically provided with two optical filter plates to improve imaging quality. However, the two optical filter plates are typically configured such that one optical filter plate is fixed and the other optical filter plate is rotatable, which limits the adjustable range of the optical filter and makes it difficult to meet the increasing demand for multi-function adjustments from consumers. Summary of the Invention

[0003] In view of the above, it is necessary to provide a multi-function optical filter and an imaging device that can expand the range of application.

[0004] In one embodiment of the present invention, a fixing ring for connecting a lens; a first mounting ring rotatably coupled to the fixed ring; a second mounting ring rotatably coupled to the first mounting ring and positioned on the opposite side of the first mounting ring from the fixed ring; a first optical filter member attached to the first mounting ring; a second optical filter member attached to the second mounting ring and positioned on the opposite side of the first optical filter member from the fixing ring; a positioning member rotatably coupled to the second mounting ring and positioned to abut against the first mounting ring; A multi-function optical filter is provided, characterized in that the rotation axis of the first mounting ring and the rotation axis of the second mounting ring are overlapping and arranged coaxially, and when the positioning member abuts against the first mounting ring, the first mounting ring and the second mounting ring can rotate synchronously relative to the fixed ring.

[0005] In the above multi-function optical filter, the first optical filter member can be rotated relative to the second mounting ring by the first mounting ring, and the second optical filter member can be rotated relative to the first mounting ring by the second mounting ring. When the positioning member abuts against the first mounting ring, the positioning member can rotate the first and second mounting rings synchronously relative to the fixed ring, which increases the adjustment methods of the multi-function optical filter and is advantageous for expanding the application range of the multi-function optical filter.

[0006] In some embodiments, the positioning member comprises: a threaded rod threadably connected to the second mounting ring; a handle fixedly sleeved onto the threaded rod; The handle is secured to the threaded rod to rotate the threaded rod and is positioned to abut against the first mounting ring.

[0007] In some embodiments, a first locking groove is formed on the first attachment ring on a side facing the fixing ring, the first attachment ring being provided along a circumferential direction of the first attachment ring, a first protrusion having an annular structure on a side of the fixing ring facing the first attachment ring, the first protrusion being engaged with the first locking groove so that the first attachment ring is rotatable relative to the fixing ring; a second locking groove is formed on the first mounting ring on the side facing the second mounting ring, the second locking groove being provided along the circumferential direction of the first mounting ring; The second mounting ring has a second convex body having a ring-shaped structure on the side facing the first mounting ring, and the second convex body is engaged with the second locking groove, so that the second mounting ring is rotatable relative to the first mounting ring.

[0008] In some embodiments, a first receiving groove is formed on the first mounting ring on a side facing the second mounting ring, The first optical filter member is a first holding ring disposed inside the first accommodating groove and having a first holding groove communicating with the first accommodating groove opened on a side facing the fixing ring; a first optical filter plate disposed inside the first holding groove.

[0009] In some embodiments, the first receiving groove is a first groove formed on the first mounting ring on a side facing the second mounting ring; a second groove formed in a bottom wall of the first groove, The diameter of the first groove is larger than the diameter of the second groove, and the first pressing ring is installed inside the first groove; The first optical filter plate is disposed inside the first holding groove and extends to the second groove.

[0010] In some embodiments, a second receiving groove is formed on the second mounting ring on the opposite side to the first mounting ring, The second optical filter member is a second holding ring that is installed inside the second accommodating groove and has a second holding groove that communicates with the second accommodating groove and is opened on a side facing the first mounting ring; and a second optical filter plate disposed inside the second holding groove.

[0011] In some embodiments, the second receiving groove is a third groove formed on the second mounting ring on the opposite side to the first mounting ring; a fourth groove formed in a bottom wall of the third groove, The diameter of the third groove is larger than the diameter of the fourth groove, and the second pressing ring is installed inside the third groove; The second optical filter plate is disposed inside the second holding groove and extends to the fourth groove.

[0012] In some embodiments, a position restriction groove is formed on the first mounting ring on a side facing the second mounting ring, The position restriction groove is provided along the circumferential direction of the first mounting ring, The positioning member is movably provided in the position restricting groove along the rotation direction of the first mounting ring.

[0013] In some embodiments, the periphery of the first attachment ring is provided with a plurality of patterns spaced apart around the circumference of the first attachment ring.

[0014] Furthermore, in another embodiment of the present invention, there is provided an imaging device comprising a lens and a multi-function optical filter attached to the lens.

[0015] The multi-function optical filter of the imaging device described above allows the first optical filter member to be rotated relative to the second mounting ring by the first mounting ring, and the second optical filter member to be rotated relative to the first mounting ring by the second mounting ring. When the positioning member abuts the first mounting ring, the positioning member can rotate the first and second mounting rings synchronously relative to the fixed ring. This increases the number of adjustment methods for the multi-function optical filter, enabling the range of application of the multi-function optical filter to be expanded, which is advantageous for improving the imaging quality of the imaging device. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic diagram of a multi-function optical filter according to an embodiment of the present invention; [Figure 2] FIG. 2 is an exploded schematic view of the multifunction optical filter shown in FIG. [Figure 3] 2 is a cross-sectional schematic view of the multifunction optical filter shown in FIG. 1 taken along the AA direction. [Figure 4] 3 is a schematic diagram of the configuration of a first mounting ring in the multifunction optical filter shown in FIG. 2. FIG. [Figure 5] 3 is a schematic diagram of the configuration of a second mounting ring and a positioning member in the multifunction optical filter shown in FIG. 2. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present disclosure will be described in detail. In the drawings, the same or similar reference numerals from the beginning to the end indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are intended to help interpret the present invention, but do not limit the present invention.

[0018] In the description of the present invention, the term "connection" should be understood in a broad sense unless otherwise clearly specified or limited, and may mean, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a mutually communicable connection, a direct connection, an indirect connection via an intermediate medium, internal communication between two modules, or an interactive relationship between two modules. In the description of the present invention, the meaning of "plurality" means two or more, unless otherwise specifically limited. Those skilled in the art will understand the above terms in their specific meanings in the present invention.

[0019] Hereinafter, each embodiment of the present invention will be described in detail with reference to the drawings.

[0020] 1 and 2 , one embodiment of the present invention provides a multi-function optical filter 100, including a fixing ring 110, a first fixing ring 120, a second fixing ring 130, a first optical filter member 140, a second optical filter member 150, and a positioning member 160. The fixing ring 110 is used to connect a lens. The first fixing ring 120 is rotatably connected to the fixing ring 110. The second fixing ring 130 is rotatably connected to the first fixing ring 120 and is located on the opposite side of the first fixing ring 120 from the fixing ring 110. The first optical filter member 140 is attached to the first fixing ring 120. The second optical filter member 150 is attached to the second fixing ring 130 and is located on the opposite side of the first optical filter member 140 from the fixing ring 110. The positioning member 160 is rotatably connected to the second fixing ring 130 and is positioned to abut against the first fixing ring 120. Furthermore, when the rotation axis of the first mounting ring 120 and the rotation axis of the second mounting ring 130 overlap and are arranged coaxially, and the positioning member 160 abuts against the first mounting ring 120, the first mounting ring 120 and the second mounting ring 130 can rotate synchronously with respect to the fixed ring 110.

[0021] In the multifunctional optical filter 100, the first optical filter member 140 can be rotated relative to the second mounting ring 130 by the first mounting ring 120, and the second optical filter member 150 can be rotated relative to the first mounting ring 120 by the second mounting ring 130. When the positioning member 160 abuts against the first mounting ring 120, the positioning member 160 can rotate the first mounting ring 120 and the second mounting ring 130 synchronously relative to the fixing ring 110, which increases the adjustment methods of the multifunctional optical filter 100 and is advantageous for expanding the application range of the multifunctional optical filter 100.

[0022] 2 and 3, in some embodiments, the positioning member 160 includes a threaded rod 161 and a handle 162. The threaded rod 161 is threadedly connected to the second mounting ring 130. The handle 162 is fixedly sleeved onto the threaded rod 161 and secured to the threaded rod 161 to rotate the threaded rod 161 and positioned to abut against the first mounting ring 120.

[0023] As a result, the positioning member 160 made up of the threaded rod 161 and the handle 162 not only makes it easy to attach and detach the positioning member 160 to and from the second attachment ring 130, but also reduces the manufacturing costs of the positioning member 160.

[0024] Referring to Figures 2 and 3, in some embodiments, a first locking groove 120a is formed on the side of the first mounting ring 120 facing the fixed ring 110, and is arranged along the circumferential direction of the first mounting ring 120. The side of the fixed ring 110 facing the first mounting ring 120 has a first protrusion 110a with a ring-shaped structure, and the first protrusion 110a is engaged with the first locking groove 120a, so that the first mounting ring 120 is rotatable relative to the fixed ring 110.

[0025] As a result, the manufacturing costs of the first attachment ring 120 and the fixing ring 110 can be reduced by the engagement between the first convex body 110a and the first locking groove 120a.

[0026] The first locking groove 120a may have a complete circumferential structure, and the corresponding first protrusion 110a may also have a complete circumferential structure, in which case the first mounting ring 120 can rotate 360° relative to the fixing ring 110. The first locking groove 120a may also have a partial circumferential structure, and the corresponding first protrusion 110a may also have a partial circumferential structure, in which case the angle through which the first mounting ring 120 can rotate relative to the fixing ring 110 is the central angle corresponding to the partial circumferential structure.

[0027] In addition, the first locking groove 120a may be provided on the side of the fixing ring 110 facing the first mounting ring 120, and correspondingly, the first convex body 110a may be provided on the side of the first mounting ring 120 facing the fixing ring 110.

[0028] Referring to Figures 2, 3 and 4, a second locking groove 120b is formed on the side of the first mounting ring 120 facing the second mounting ring 130, and is arranged along the circumferential direction of the first mounting ring 120.The second mounting ring 130 has a second protrusion 130a with a ring-shaped structure on the side facing the first mounting ring 120.The second protrusion 130a is engaged with the second locking groove 120b, so that the second mounting ring 130 is rotatable relative to the first mounting ring 120.

[0029] As a result, the manufacturing costs of the second mounting ring 130 and the first mounting ring 120 can be reduced by the engagement between the second protrusions 130a and the second locking grooves 120b.

[0030] The second locking groove 120b may have a complete circumferential structure, and the corresponding second protrusion 130a may also have a complete circumferential structure, in which case the second mounting ring 130 can rotate 360° relative to the first mounting ring 120. The second locking groove 120b may also have a partial circumferential structure, and the corresponding second protrusion 130a may also have a partial circumferential structure, in which case the rotation angle of the second mounting ring 130 relative to the first mounting ring 120 is the central angle corresponding to the partial circumferential structure.

[0031] In addition, the second locking groove 120b may be provided on the side of the second mounting ring 130 facing the first mounting ring 120, and correspondingly, the second convex body 130a may be provided on the side of the first mounting ring 120 facing the second mounting ring 130.

[0032] 2, 3, and 4, in some embodiments, a first accommodating groove 120c is formed on the side of the first mounting ring 120 facing the second mounting ring 130. The first optical filter member 140 is disposed inside the first accommodating groove 120c and includes a first pressing ring 141 having a first pressing groove 141a communicating with the first accommodating groove 120c and formed on the side facing the fixing ring 110, and a first optical filter plate 142 disposed inside the first pressing groove 141a. The first pressing ring 141 may be, for example, a rubber ring.

[0033] As a result, by placing the first pressing ring 141 inside the first recessed groove 120d, the first optical filter member 140 and the first attachment ring 120 can be fixedly connected, simplifying the manufacturing process of the first optical filter member 140 and the first attachment ring 120 and reducing the manufacturing cost of the multifunction optical filter 100. Furthermore, with the above configuration, the first optical filter member 140 and the first attachment ring 120 can form a fitted structure, reducing the thickness of both the first attachment ring 120 and the first optical filter member 140 after they are attached, allowing the multifunction optical filter 100 to be installed in a thinner form.

[0034] 3 and 4, in some embodiments, the first receiving groove 120c includes a first groove 120d and a second groove 120e. The first groove 120d is located on the side of the first mounting ring 120 facing the second mounting ring 130, and the second groove 120e is located on the bottom wall of the first groove 120d. The diameter of the first groove 120d is larger than that of the second groove 120e. The first retaining ring 141 is located inside the first groove 120d, and the first optical filter plate 142 is located inside the first retaining groove 141a and extends to the second groove 120e.

[0035] As a result, the diameter of the first groove 120d is larger than the diameter of the second groove 120e, making the first accommodating groove 120c a stepped structure, and by limiting the position of the first optical filter plate 142, the radial shaking of the first optical filter plate 142 can be reduced, which is advantageous for improving the stability after the first optical filter member 140 is attached.

[0036] 2, 3, and 5, in some embodiments, a second accommodating groove 130b is formed on the second mounting ring 130 opposite the first mounting ring 120, and the second optical filter member 150 includes a second pressing ring 151 and a second optical filter plate 152. The second pressing ring 151 is disposed inside the second accommodating groove 130b, and a second pressing groove 151a communicating with the second accommodating groove 130b is formed on the side facing the first mounting ring 120, and the second optical filter plate 152 is disposed inside the second pressing groove 151a. The second pressing ring 151 may be, for example, a rubber ring.

[0037] As a result, by placing the second press ring 151 inside the second accommodating groove 130b, the second optical filter member 150 and the second attachment ring 130 can be fixedly connected, simplifying the manufacturing process of the second optical filter member 150 and the second attachment ring 130 and reducing the manufacturing cost of the multifunction optical filter 100. Furthermore, with the above configuration, the second optical filter member 150 and the second attachment ring 130 can be made to have a snare structure, which reduces the thickness of both the second attachment ring 130 and the second optical filter member 150 after they are attached, allowing the multifunction optical filter 100 to be installed in a thinner form.

[0038] 3 and 5, in some embodiments, the second receiving groove 130b includes a third groove 130c and a fourth groove 130d. The third groove 130c is located on the side of the second mounting ring 130 opposite the first mounting ring 120, and the fourth groove 130d is located on the bottom wall of the third groove 130c, with a larger diameter than the fourth groove 130d. The second retaining ring 151 is located inside the third groove 130c, and the second optical filter plate 152 is located inside the second retaining groove 151a and extends to the fourth groove 130d.

[0039] As a result, the diameter of the third groove 130c is larger than the diameter of the fourth groove 130d, thereby making the second accommodating groove 130b a stepped structure, and by limiting the position of the second optical filter plate 152, the radial shaking of the second optical filter plate 152 can be reduced, which is advantageous for improving the stability after the second optical filter member 150 is attached.

[0040] 2 and 4, in some embodiments, a position restriction groove 120f is formed on the side of the first attachment ring 120 facing the second attachment ring 130. The position restriction groove 120f is provided along the circumferential direction of the first attachment ring 120. The positioning member 160 is provided in the position restriction groove 120f so as to be movable along the rotational direction of the first attachment ring 120.

[0041] As a result, the position restricting groove 120f not only restricts the rotation angle of the positioning member 160, but also accommodates a part of the positioning member 160, thereby enabling the multifunction optical filter 100 to be installed in a thin configuration.

[0042] In some embodiments, the periphery of the first attachment ring 120 is provided with a plurality of patterns 120g spaced apart around the circumference of the first attachment ring.

[0043] As a result, the multiple patterns 120g can increase the frictional force between the positioning member 160 and the first mounting ring 120, ensuring stability in the fixation of the first mounting ring 120 and the second mounting ring 130 by the positioning member 160.

[0044] Furthermore, in another embodiment of the present invention, there is provided an imaging device (not shown) comprising a lens (not shown) and a multi-function optical filter 100 attached to the lens.

[0045] The multi-function optical filter 100 of the above-mentioned imaging device can rotate the first optical filter member 140 relative to the second mounting ring 130 using the first mounting ring 120, and can rotate the second optical filter member 150 relative to the first mounting ring 120 using the second mounting ring 130. When the positioning member 160 abuts against the first mounting ring 120, the positioning member 160 can rotate the first mounting ring 120 and the second mounting ring 130 synchronously relative to the fixed ring 110. This increases the adjustment methods for the multi-function optical filter 100 and enables the application range of the multi-function optical filter 100 to be expanded, which is advantageous for improving the imaging quality of the imaging device.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that it can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the above-described embodiments should be considered as examples rather than limitations of the present invention, and the scope of the present invention is not limited by the above description, but is defined by the scope of the utility model registration claims. All changes in the meaning and scope of the equivalent elements of the utility model registration claims are included in the present invention.

[0047] The above embodiments are only for illustrating the technical solutions of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to preferred embodiments, it should be understood that those skilled in the art can modify or equivalently replace the technical solutions of the present invention without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0048] 100 Multifunctional Optical Filters 110 Fixing ring 110a 1st convex body 120 First mounting ring 120a First locking groove 120b 2nd locking groove 120c First storage groove 120d First groove 120e Second groove 120f position regulation groove 120g Pattern 130 Second mounting ring 130a Second convex body 130b Second receiving groove 130c 3rd groove 130d 4th groove 140 First optical filter member 141 First retaining ring 141a First retaining groove 142 first optical filter plate 150 second optical filter member 151 Second retaining ring 151a Second retaining groove 152 Second optical filter plate 160 Positioning member 161 Threaded Rod 162 Handle

Claims

1. A multi-function optical filter, A fixing ring for connecting the lens; a first mounting ring rotatably coupled to the fixed ring; a second mounting ring rotatably coupled to the first mounting ring and positioned on the opposite side of the first mounting ring from the fixed ring; a first optical filter member attached to the first mounting ring; a second optical filter member attached to the second mounting ring and positioned on the opposite side of the first optical filter member from the fixing ring; a positioning member rotatably coupled to the second mounting ring and positioned to abut against the first mounting ring; Equipped with A multifunction optical filter characterized in that the rotation axis of the first mounting ring and the rotation axis of the second mounting ring are overlapping and arranged coaxially, and when the positioning member abuts the first mounting ring, the first mounting ring and the second mounting ring can rotate synchronously relative to the fixed ring.

2. The positioning member is a threaded rod threadably connected to the second mounting ring; a handle fixedly sleeved onto the threaded rod; 2. The multi-function optical filter according to claim 1, wherein the handle is fixed to the threaded rod to rotate the threaded rod and is disposed to abut against the first mounting ring.

3. a first locking groove is formed on the first mounting ring on a side facing the fixing ring, the first locking groove being provided along the circumferential direction of the first mounting ring; a first protrusion having an annular structure on a side of the fixing ring facing the first attachment ring, the first protrusion being engaged with the first locking groove so that the first attachment ring is rotatable relative to the fixing ring; a second locking groove is formed on the first mounting ring on a side facing the second mounting ring, the second locking groove being provided along the circumferential direction of the first mounting ring; The multi-function optical filter of claim 1, characterized in that the second mounting ring has a second convex body having a ring-shaped structure on the side facing the first mounting ring, and the second convex body is engaged with the second locking groove, so that the second mounting ring is configured to be rotatable relative to the first mounting ring.

4. a first receiving groove is formed on a side of the first mounting ring facing the second mounting ring, The first optical filter member is a first holding ring disposed inside the first accommodating groove, the first holding groove communicating with the first accommodating groove being opened on a side facing the fixing ring; The multi-function optical filter according to claim 1 , further comprising: a first optical filter plate disposed inside the first holding groove.

5. The first accommodating groove is a first groove formed on the first mounting ring on a side facing the second mounting ring; a second groove formed in a bottom wall of the first groove, The diameter of the first groove is larger than the diameter of the second groove; The first pressing ring is disposed inside the first groove; The multi-function optical filter according to claim 4 , wherein the first optical filter plate is disposed inside the first holding groove and extends to the second groove.

6. A second receiving groove is formed on the second mounting ring on the opposite side to the first mounting ring, The second optical filter member is a second holding ring disposed inside the second accommodating groove, the second holding groove communicating with the second accommodating groove being opened on a side facing the first mounting ring; The multi-function optical filter according to claim 1 , further comprising: a second optical filter plate disposed inside the second holding groove.

7. The second accommodating groove is a third groove formed on the second mounting ring on the opposite side to the first mounting ring; a fourth groove formed in a bottom wall of the third groove, The diameter of the third groove is larger than the diameter of the fourth groove, and the second pressing ring is installed inside the third groove; The multi-function optical filter according to claim 6 , wherein the second optical filter plate is disposed inside the second holding groove and extends to the fourth groove.

8. a position restriction groove is formed on the first mounting ring on a side facing the second mounting ring, The position restriction groove is provided along the circumferential direction of the first mounting ring, 2. The multifunction optical filter according to claim 1, wherein the positioning member is movably provided in the position restricting groove along a rotation direction of the first mounting ring.

9. 2. The multi-function optical filter according to claim 1, wherein a plurality of patterns are provided on the peripheral edge of said first attachment ring at intervals in the circumferential direction of said first attachment ring.

10. Lenses and a multifunction optical filter according to any one of claims 1 to 9; The imaging device, wherein the multi-function optical filter is attached to the lens.

Images