Depth of field display mechanism and camera

Abstract

The utility model is suitable for the technical field of electronic products, and provides a depth-of-field display mechanism and a camera, the depth-of-field display mechanism comprises a diaphragm ring, the diaphragm ring comprises a scale part and an extension part, the scale part is provided with a plurality of first scales, the first scales are arranged at intervals along the circumferential direction of the scale part, and the extension part is provided with a display area; the fixing ring is provided with a second scale and a plurality of through holes, the fixing ring is arranged on the extending part in a sleeving mode, the fixing ring can rotate around the axis relative to the extending part around the central axis of the scale part, the through holes are divided into a first hole set and a second hole set, and the through holes of the first hole set and the second hole set are formed in the two opposite sides of the second scale respectively; the through holes of the first hole group correspond to the through holes of the second hole group in pairs relative to the second scales; when the scale part rotates around the shaft relative to the fixed ring until the second scale is aligned with the corresponding first scale, the corresponding through holes in the first hole group and the corresponding through holes in the second hole group are located above the display area, and the through holes located in the display area are used for indicating the depth of field corresponding to the current second scale.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and more specifically, to a depth of field display mechanism and a camera. Background Art

[0002] Depth of field refers to the distance range within which a camera lens can obtain a clear image. Objects within the depth of field are clearly imaged, while objects outside the depth of field are blurred. When shooting, photographers can choose a larger depth of field to capture the entire scene and keep more details clear, or choose a smaller depth of field to highlight the subject and create a blurred background effect. In order to capture the desired photo effect, photographers need to know the depth of field when shooting.

[0003] In the related art, when obtaining the depth of field parameters, the photographer usually needs to first check the position of the main scale line based on the values ​​pointed to by multiple scale lines, then determine the aperture value pointed to by the main scale line, and then find the corresponding aperture based on the aperture value, and finally determine the corresponding depth of field based on the scale lines in the aperture. The depth of field display is not conspicuous and intuitive enough, and it takes a lot of time to determine the depth of field, and it cannot be quickly identified. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a depth of field display mechanism and a camera to solve the technical problems in the prior art that the depth of field display is not conspicuous and intuitive enough and cannot be quickly identified.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a depth of field display mechanism, including:

[0006] An aperture ring, the aperture ring comprising a scale portion and an extension portion provided on the scale portion, the scale portion being provided with a plurality of first scales, each of the first scales being arranged at intervals along the circumference of the scale portion, and the extension portion being provided with a display area;

[0007] A fixing ring, the fixing ring is provided with a second scale and a plurality of through holes, the fixing ring is sleeved on the extension portion, and the fixing ring can be axially rotated relative to the extension portion around the central axis of the scale portion, the plurality of through holes are divided into a first hole group and a second hole group, each through hole of the first hole group and each through hole of the second hole group are respectively provided on opposite sides of the second scale, and the through holes of the first hole group and the through holes of the second hole group correspond to each other with respect to the second scale;

[0008] Among them, the display area and the multiple through holes are configured so that when the scale part is relatively fixed and rotates around the axis until the second scale is aligned with the corresponding first scale, the corresponding through holes in the first hole group and the corresponding through holes in the second hole group are both located above the display area, and each through hole located in the display area is used to indicate the depth of field corresponding to the current second scale.

[0009] The depth of field display mechanism provided in the embodiment of the present application has multiple first scales for indicating the size of the aperture value, and the second scale is used as a reference scale. The current aperture value can be accurately determined by the first scale aligned with the second scale; the fixed ring is arranged on the extension portion of the aperture ring, and the scale portion can be rotated relative to the fixed axis to select a suitable aperture value; the through holes of the first hole group and the through holes of the second hole group correspond to each other with respect to the second scale, and when the scale portion is rotated relative to the fixed axis until the second scale is aligned with the corresponding first scale, the corresponding through holes in the first hole group and the corresponding through holes in the second hole group are both located above the display area, and the photographer can see the display area through the through holes above the display area, thereby intuitively determining the corresponding through holes located above the display area, and quickly determining the depth of field corresponding to the current first scale based on the corresponding through holes, without spending too much time looking for and confirming the scale lines and aperture, which helps to achieve rapid identification of the depth of field.

[0010] In some embodiments, the plurality of through holes are any one of circular holes, square holes, strip holes, and triangular holes.

[0011] In this embodiment, through holes of different shapes can correspond to different depth of field display effects, which helps to improve the flexibility and scalability of the depth of field display mechanism. At the same time, by setting the through holes into different shapes, it helps the photographer to quickly determine the through holes located above the display area, thereby quickly determining the depth of field, which helps to further achieve rapid identification of the depth of field.

[0012] In some embodiments, the through holes of the first hole group are arranged along the axial direction of the fixing ring and are successively away from the second scale;

[0013] The through holes of the second hole group are sequentially away from the second scale and correspond to the through holes of the first hole group in pairs.

[0014] In this embodiment, the through holes of the first hole group and the through holes of the second hole group are arranged along the axial direction of the fixed ring and are successively away from the second scale. When the scale part rotates relatively around the fixed axis, each through hole can be successively located above the display area. At the same time, the through holes of the second hole group correspond to the through holes of the first hole group in pairs, which can ensure that when a through hole of the first hole group is displayed, the corresponding through hole of the second hole group will also be displayed at the same time, which helps to ensure the stability and reliability of the depth of field display mechanism.

[0015] In some embodiments, the number of the first scale is eight, the number of through holes in the first hole group is eight, and the number of through holes in the second hole group is eight.

[0016] In this embodiment, the eight first scales represent different aperture values ​​respectively. The first hole group consists of eight through holes, which are arranged along the axial direction of the fixed ring and correspond to the eight first scales one by one. When a certain scale is selected, the corresponding through hole is located above the display area, and the display area is displayed so that the photographer can see the display area through the corresponding through hole. The second hole group also consists of eight through holes, which correspond to the through holes of the first hole group in pairs. When a through hole of the first hole group is displayed, the corresponding through hole of the second hole group will also be displayed at the same time, which helps the photographer to quickly determine the depth of field through the through hole located above the display area.

[0017] In some embodiments, the extension portion is a closed annular structure, and the central axis of the extension portion coincides with the central axis of the fixing ring.

[0018] By adopting the above technical solution, the reliability of the scale part rotating relative to the fixed ring axis can be ensured, which helps to ensure the positional relationship between the scale part and the fixed ring, thereby providing a stable and reliable depth of field display effect.

[0019] In some embodiments, the visible area includes any one of an ink area, a hollow area, and a groove area.

[0020] By adopting the above technical solution, it is possible to achieve a difference between the appearance area and other areas on the extension portion, which helps the photographer to quickly determine which through holes are located above the appearance area through the through holes, thereby quickly determining the depth of field.

[0021] In some embodiments, the ink region includes a plurality of ink layers, each ink layer corresponds to each first scale, and the ink layer corresponding to each first scale is stacked in an axial direction and extended in a circumferential direction of the extension portion.

[0022] By adopting the above technical solution, when the photographer selects a specific scale, the corresponding through hole is located just above the corresponding ink layer, and the ink layer can be intuitively seen through the through hole; the range of rotation of the scale part around the axis is limited, and the ink layer is stacked in the axial direction to arrange the ink area in a limited space, avoiding the ink area being arranged outside the rotation range of the scale part; the ink layer is extended in the circumferential direction of the extension part, so that the ink layer can completely cover the entire range of rotation of the scale part around the axis, thereby ensuring that the display range of the depth of field can cover all aperture sizes corresponding to the scale part.

[0023] In some embodiments, at least two of the ink layers are the same color.

[0024] By adopting the above technical solution, it is helpful for the photographer to quickly determine the through hole located above the display area, thereby realizing the rapid determination of the depth of field.

[0025] In some embodiments, the depth of field display mechanism further includes a limiting structure, and the limiting structure is used to limit the circumferential rotation of the extension portion relative to the fixing ring.

[0026] By adopting the above technical solution, it is possible to ensure that the extension part rotates within a specific range and prevent it from over-rotating or exceeding a predetermined boundary. When the photographer selects the scale, the extension part can only rotate within the limited range, which helps to ensure the accuracy and controllability of the depth of field display, allowing the photographer to better control the depth of field and obtain ideal shooting effects.

[0027] The present application also provides a camera, comprising the above-mentioned depth of field display mechanism.

[0028] The camera provided by this embodiment has multiple first scales for indicating the size of the aperture value, and the second scale is used as a reference scale. The current aperture value can be accurately determined by the first scale aligned with the second scale; the fixed ring is arranged on the extension of the aperture ring, and the scale part can be rotated relatively around the fixed axis to select a suitable aperture value; the through holes of the first hole group and the through holes of the second hole group correspond to each other with respect to the second scale, and when the scale part is rotated relatively around the fixed axis until the second scale is aligned with the corresponding first scale, the corresponding through holes in the first hole group and the corresponding through holes in the second hole group are both located above the display area, and the photographer can see the display area through the through holes above the display area, thereby intuitively determining the corresponding through holes located above the display area, and quickly determining the depth of field corresponding to the current first scale based on the corresponding through holes, without spending too much time looking for and confirming the scale lines and aperture, which helps to achieve rapid identification of the depth of field.

[0029] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 is an exploded schematic diagram of a depth of field display mechanism provided by an embodiment of the present application;

[0032] Figure 2 is a schematic diagram of a depth of field display mechanism provided by an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of a depth of field display mechanism provided by another embodiment of the present application;

[0034] Figure 4 is a schematic diagram of a fixing ring 20 provided in one embodiment of the present application;

[0035] Figure 5 is a schematic diagram of a fixing ring 20 provided in another embodiment of the present application;

[0036] Figure 6 is a schematic diagram of an aperture ring provided in one embodiment of the present application;

[0037] Figure 7 Schematic diagram of an ink area provided in one embodiment of the present application.

[0038] Among them, the reference numerals in the figure are:

[0039] 100. Depth of field display mechanism; 10. Aperture ring; 11. Scale portion; 111. First scale; 12. Extension portion; 121. Display area; 1211. Ink area; 12110. Ink layer; 12111. First ink layer; 12112. Second ink layer; 12113. Third ink layer; 12114. Fourth ink layer; 12115. Fifth ink layer; 12116. Sixth ink layer; 12117. Seventh ink layer; 12118. Eighth ink layer; 12119. Ninth ink layer; 12120. Tenth ink layer; 20. Fixing ring 20; 21. Second scale 21; 22. Through hole 22; 23. First hole group 23; 24. Second hole group 24. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figures 1 to 3 The embodiment of the present application proposes a depth of field display mechanism 100, including: an aperture ring 10 and a fixing ring 20.

[0045] The aperture ring 10 includes a scale portion 11 and an extension portion 12 disposed on the scale portion 11 . The scale portion 11 is provided with a plurality of first scales 111 . The first scales 111 are spaced apart along the circumference of the scale portion 11 . The extension portion 12 is provided with a display area 121 .

[0046] The scale portion 11 is a portion with scales on the aperture ring 10. The scale portion 11 is a closed annular structure, and a plurality of first scales 111 are provided on the scale portion 11.

[0047] The first scale 111 is used to indicate the size of the aperture, and each first scale 111 corresponds to an aperture value. The first scales 111 are arranged at intervals along the circumference of the scale portion 11. For example, Figure 1 As shown, the first scale 111 includes scale values ​​of 1.4, 2, 2.8, 4, 5.6, 8, 11, and 16. The first scales 111 are arranged at intervals along the circumference of the scale portion 11, and each first scale 111 corresponds to an aperture value.

[0048] The smaller the scale number on the aperture ring 10, the larger the aperture, the more light enters, and the shallower the depth of field; conversely, the larger the scale number, the smaller the aperture, the less light enters, and the deeper the depth of field. Therefore, the photographer can control the exposure and depth of field of the photo by adjusting the scale number on the aperture ring 10.

[0049] The extension portion 12 is an extension of the scale portion 11 .

[0050] The extending portion 12 is provided with a visible region 121 , which is a region of the extending portion 12 that is different from other regions of the extending portion 12 .

[0051] The fixing ring 20 is provided with a second scale 21 and a plurality of through holes 22. The fixing ring 20 is sleeved on the extension portion 12, and the fixing ring 20 can rotate around the central axis of the scale portion 11 relative to the extension portion 12. The plurality of through holes 22 are divided into a first hole group 23 and a second hole group 24. The through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 are respectively arranged on opposite sides of the second scale 21, and the through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 correspond to each other with respect to the second scale 21.

[0052] The fixing ring 20 is a closed annular structure and is sleeved on the extension part 12 . The outer wall of the extension part 12 extends into the hole formed by the inner wall of the fixing ring 20 . The fixing ring 20 can rotate relative to the extension part 12 around the central axis of the scale part 11 .

[0053] The second scale 21 is a scale line on the outer surface of the fixing ring 20 .

[0054] The surface of the fixing ring 20 is provided with a plurality of through holes 22 penetrating the outer surface and the inner wall of the fixing ring 20, and the plurality of through holes 22 are divided into a first hole group 23 and a second hole group 24. The first hole group 23 and the second hole group 24 respectively include a plurality of through holes 22, and the number of through holes 22 included in the first hole group 23 is the same as the number of through holes 22 included in the second hole group 24. Each through hole 22 of the first hole group 23 corresponds to a different first scale 111, and each through hole 22 of the second hole group 24 also corresponds to a different first scale 111. The through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 are respectively arranged on opposite sides of the second scale 21, and the through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 correspond to each other with respect to the second scale 21. When the scale portion 11 rotates around the axis relative to the fixed ring 20, the two through holes 22 corresponding to the second scale 21 are simultaneously located above the display area 121, and the distance between the two corresponding through holes 22 corresponds to the depth of field of the corresponding first scale 111. As a professional, the photographer can quickly and intuitively determine the depth of field of the current first scale 111 through the distance between the two through holes 22.

[0055] Among them, the display area 121 and the multiple through holes 22 are configured so that when the scale portion 11 rotates around the axis relative to the fixed ring 20 until the second scale 21 is aligned with the corresponding first scale 111, the corresponding through holes 22 in the first hole group 23 and the corresponding through holes 22 in the second hole group 24 are both located above the display area 121, and each through hole 22 located in the display area 121 is used to indicate the depth of field corresponding to the current first scale 111.

[0056] During use, the photographer can rotate the scale part 11 so that the scale part 11 rotates around the axis relative to the fixed ring 20, so as to align different first scales 111 with the second scales 21. When the photographer rotates until the second scale 21 is aligned with the corresponding first scale 111, the through holes 22 corresponding to the current first scale 111 in the first hole group 23 and the through holes 22 corresponding to the current first scale 111 in the second hole group 24 are simultaneously located above the display area 121. The photographer can obtain the depth of field corresponding to the current first scale 111 through the distance between the through holes 22 located above the display area 121. If there are multiple through holes 22 located above the display area 121 in both the first hole group 23 and the second hole group 24, the photographer can obtain the depth of field corresponding to the current first scale 111 through the distance between the two through holes 22 located above the display area 121 and located at the outermost side.

[0057] For example, Figure 2 As shown, the first scale 111 corresponding to the aperture value of 8 is aligned with the second scale 21. At this time, there are six through holes 22 in the first hole group 23 located above the display area 121, and there are also six through holes 22 in the second hole group 24 located above the display area 121. The photographer can obtain the depth of field corresponding to the current first scale 111 through the distance between the through hole a and the through hole b located above the display area 121 and at the outermost side.

[0058] For example, Figure 3 As shown, the first scale 111 corresponding to the aperture value of 2.8 is aligned with the second scale 21. At this time, there are three through holes 22 in the first hole group 23 located above the display area 121, and there are also three through holes 22 in the second hole group 24 located above the display area 121. The photographer can obtain the depth of field corresponding to the current first scale 111 through the distance between the through hole c and the through hole d located above the display area 121 and at the outermost side.

[0059] The depth of field display mechanism 100 provided in the embodiment of the present application has a plurality of first scales 111 for indicating the size of the aperture value, and a second scale 21 is used as a reference scale. The first scale 111 aligned with the second scale 21 can accurately determine the current aperture value; the fixed ring 20 is sleeved on the extension portion 12 of the aperture ring 10, and the scale portion 11 can be rotated relative to the fixed ring 20 around the axis to select a suitable aperture value; the through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 correspond to each other with respect to the second scale 21, and when the scale portion 11 rotates relative to the fixed ring 20 around the axis When the second scale 21 is aligned with the corresponding first scale 111, the corresponding through holes 22 in the first hole group 23 and the corresponding through holes 22 in the second hole group 24 are both located above the display area 121. The photographer can see the display area 121 through the through holes 22 above the display area 121, thereby intuitively determining the corresponding through holes 22 located above the display area 121, and quickly determining the depth of field corresponding to the current first scale 111 based on the corresponding through holes 22, without having to spend too much time looking for and confirming the scale lines and apertures, which helps to achieve rapid identification of the depth of field.

[0060] In some embodiments, the plurality of through holes 22 are any one of circular holes, square holes, bar holes, and triangular holes.

[0061] The shapes of the plurality of through holes 22 may be the same, for example, Figure 4 As shown, all through holes 22 are in the shape of round holes.

[0062] The shapes of the plurality of through holes 22 may also be different. For example, Figure 5 As shown, the shapes of the plurality of through holes 22 may include round holes, square holes, and triangular holes. When the photographer determines the through holes 22 located above the display area 121 , through holes 22 of different shapes help the photographer quickly determine which through holes 22 are located above the display area 121 .

[0063] In this embodiment, through holes 22 of different shapes can correspond to different depth of field display effects, which helps to improve the flexibility and scalability of the depth of field display mechanism 100. At the same time, by setting the through holes 22 to different shapes, it helps the photographer to quickly determine the through holes 22 located above the display area 121, thereby quickly determining the depth of field, which helps to further realize the rapid identification of the depth of field.

[0064] like Figures 1 to 4 As shown, in some embodiments, the through holes 22 of the first hole group 23 are arranged along the axial direction of the fixing ring 20 and are successively away from the second scale 21; the through holes 22 of the second hole group 24 are successively away from the second scale 21 and correspond to the through holes 22 of the first hole group 23 in pairs.

[0065] The through holes 22 of the first hole group 23 are located on the right side of the fixing ring 20. The through holes 22 of the first hole group 23 are arranged in a stepped ascending manner along the axial direction of the fixing ring 20, and the through holes 22 closer to the scale portion 11 are farther from the second scale 21. The through holes 22 of the first hole group 23 correspond to the first scales 111, so that when the scale portion 11 rotates around the axis relative to the fixing ring 20 so that the plurality of first scales 111 are aligned with the second scale 21 in sequence, it can be achieved that the through holes 22 of the first hole group 23 can be located above the display area 121 in sequence.

[0066] The through holes 22 of the second hole group 24 are located on the left side of the fixing ring 20, and the through holes 22 of the second hole group 24 are also successively away from the second scale 21, and the through holes 22 closer to the near scale portion 11 are farther away from the second scale 21. The through holes 22 of the second hole group 24 are also arranged in a stepped ascending manner along the axial direction of the fixing ring 20 as a whole, but due to space limitations, each through hole 22 of the second hole group 24 cannot be arranged in a stepped ascending manner along the axial direction of the fixing ring 20 like the through holes 22 of the first hole group 23, and two through holes 22 need to be arranged at appropriate stepped positions.

[0067] For example, Figure 4 As shown, the through holes 22 of the first hole group 23 are located on the right side of the fixing ring 20, and the through holes 22 of the first hole group 23 are arranged in ascending steps along the axial direction of the fixing ring 20, and the through holes 22 closer to the scale portion 11 are farther away from the second scale 21. The through holes 22 of the second hole group 24 are located on the left side of the fixing ring 20, and the through holes 22 of the second hole group 24 are also arranged in ascending steps along the axial direction of the fixing ring 20 as a whole, but there is a step position where two through holes 22 are arranged.

[0068] The through holes 22 of the second hole group 24 correspond to the through holes 22 of the first hole group 23 in pairs. When the scale portion 11 rotates around the axis relative to the fixing ring 20 , the two corresponding through holes 22 are simultaneously located above the display area 121 .

[0069] In this embodiment, the through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 are arranged along the axial direction of the fixing ring 20 and are successively away from the second scale 21. This can ensure that when the scale portion 11 rotates around the axis relative to the fixing ring 20, each through hole 22 can be successively located above the display area 121. At the same time, the through holes 22 of the second hole group 24 correspond to the through holes 22 of the first hole group 23 in pairs, which can ensure that when a through hole 22 of the first hole group 23 is displayed, the corresponding through hole 22 of the second hole group 24 will also be displayed at the same time, which helps to ensure the stability and reliability of the depth of field display mechanism 100.

[0070] like Figures 1 to 3As shown, in some embodiments, the number of the first scales 111 is eight, the number of the through holes 22 in the first hole group 23 is eight, and the number of the through holes 22 in the second hole group 24 is eight.

[0071] The number of the first scales 111 is eight, namely 1.4, 2, 2.8, 4, 5.6, 8, 11, and 16, respectively representing different aperture values.

[0072] The number of the through holes 22 in the first hole group 23 is the same as the number of the first scales 111 , which is also eight. Each through hole 22 in the first hole group 23 corresponds to one first scale 111 .

[0073] The number of the through holes 22 in the second hole group 24 is the same as the number of the first scales 111 , which is also eight. Each through hole 22 in the second hole group 24 corresponds to one first scale 111 .

[0074] In this embodiment, the eight first scales 111 represent different aperture values, respectively. The first hole group 23 is composed of eight through holes 22, which are arranged along the axial direction of the fixing ring 20 and correspond to the eight first scales 111 one by one. When a certain scale is selected, the corresponding through hole 22 is located above the display area 121, and the display area 121 is displayed, so that the photographer can see the display area 121 through the corresponding through hole 22. The second hole group 24 is also composed of eight through holes 22, which correspond to the through holes 22 of the first hole group 23 in pairs. When a certain through hole 22 of the first hole group 23 is displayed, the corresponding through hole 22 of the second hole group 24 will also be displayed at the same time, which helps the photographer to quickly determine the depth of field through the through hole 22 located above the display area 121.

[0075] In some embodiments, the extension portion 12 is a closed annular structure, and the central axis of the extension portion 12 coincides with the central axis of the fixing ring 20 .

[0076] The extension portion 12 is a closed annular structure, and the diameter of the extension portion 12 is smaller than the diameter of the scale portion 11, so that the aperture ring 10 is in a convex shape as a whole, and the diameter of the extension portion 12 is adapted to the diameter of the inner wall of the fixing ring 20. Exemplarily, the diameter of the extension portion 12 is smaller than the diameter of the inner wall of the fixing ring 20, so that the extension portion 12 can be easily inserted into the fixing ring 20, and the scale portion 11 can be easily rotated around the axis relative to the fixing ring 20.

[0077] The central axis of the extension portion 12 coincides with the central axis of the fixing ring 20 to ensure the positional relationship between the scale portion 11 and the fixing ring 20 .

[0078] By adopting the above technical solution, the reliability of the axial rotation of the scale part 11 relative to the fixing ring 20 can be ensured, which helps to ensure the positional relationship between the scale part 11 and the fixing ring 20, thereby providing a stable and reliable depth of field display effect.

[0079] In some embodiments, the extension portion 12 may not be a closed annular structure, but may be any structure that can ensure that the scale portion 11 rotates around the axis relative to the fixed ring 20, for example, a semicircular annular structure, a plurality of extended bosses arranged at intervals along the circumferential direction of the scale portion 11, a plurality of arc-shaped sheets arranged at intervals along the circumferential direction of the scale portion 11, etc.

[0080] In some embodiments, the visible area 121 includes any one of an ink area 1211 , a hollow area, and a groove area.

[0081] The visible area 121 is different from other areas of the extending portion 12 in color or structure.

[0082] When the visible area 121 is the ink area 1211, the color of the ink area 1211 is different from the color of other areas of the extension portion 12. For example, other areas of the extension portion 12 are the original color of the metal, and the ink area 1211 is a bright color such as yellow or orange. Figure 2 and Figure 3 As shown, when the scale portion 11 rotates relative to the fixed ring 20, the through hole 22 corresponding to the current first scale 111 can display the color of the ink area 1211, while other through holes 22 located outside the through hole 22 corresponding to the current first scale 111 will not display the color of the ink area 1211, which makes it easy for the photographer to intuitively and quickly determine the through hole 22 located above the ink area 1211 through the color displayed by the through hole 22.

[0083] When the display area is a hollow area, the other areas of the extension part 12 are solid structures. When the scale part 11 rotates relative to the fixing ring 20, the through hole 22 corresponding to the current first scale 111 can show a hollow area, so that the photographer can intuitively and quickly determine the through hole 22 located above the hollow area through the hollow area shown by the through hole 22.

[0084] When the display area is a groove area, the other areas of the extension part 12 are solid structures. When the scale part 11 rotates relative to the fixing ring 20, the through hole 22 corresponding to the current first scale 111 can show the groove area, so that the photographer can intuitively and quickly determine the through hole 22 located above the groove area through the groove area shown by the through hole 22.

[0085] By adopting the above technical solution, it is possible to achieve a difference between the display area 121 and other areas on the extension portion 12, which helps the photographer to quickly determine which through holes 22 are located above the display area 121 through the through holes 22, thereby quickly determining the depth of field.

[0086] like Figure 1 , Figure 6 and Figure 7As shown, in some embodiments, the ink area 1211 includes multiple ink layers 12110, each ink layer 12110 corresponds to each first scale 111, and the ink layer 12110 corresponding to each first scale 111 is stacked in the axial direction and extended in the circumferential direction of the extension portion 12.

[0087] Each ink layer 12110 corresponds to a first scale 111 . Due to space limitations, some first scales 111 correspond to more than one ink layer 12110 .

[0088] For example, Figure 6 and Figure 7 As shown, the ink area 1211 includes ten ink layers 12110, namely, a first ink layer 12111, a second ink layer 12112, a third ink layer 12113, a fourth ink layer 12114, a fifth ink layer 12115, a sixth ink layer 12116, a seventh ink layer 12117, an eighth ink layer 12118, a ninth ink layer 12119 and a tenth ink layer 12120, and the first scale 111 includes eight scale values, namely, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, wherein the scale values ​​are 1.4 corresponds to the first ink layer 12111, the scale value 2 corresponds to the second ink layer 12112, the scale value 2.8 corresponds to the third ink layer 12113, the scale value 4 corresponds to the fourth ink layer 12114, the scale value 5.6 corresponds to the fourth ink layer 12114 and the fifth ink layer 12115, the scale value 8 corresponds to the sixth ink layer 12116 and the eighth ink layer 12118, the scale value 11 corresponds to the seventh ink layer 12117 and the ninth ink layer 12119, and the scale value 16 corresponds to the seventh ink layer and the tenth ink layer 12120.

[0089] When the scale portion 11 rotates around the axis relative to the fixing ring 20 until the first scale 111 is aligned with the second scale 21 , the through holes 22 in the first hole group 23 and the second hole group 24 corresponding to the current first scale 111 are located above the ink layer 12110 corresponding to the first scale 111 .

[0090] Exemplarily, when the scale portion 11 rotates around the axis relative to the fixed ring 20 until the scale value 1.4 is aligned with the second scale 21, the two through holes 22 at the bottom of the first hole group 23 and the second hole group 24 corresponding to the scale value 1.4 are located above the first ink layer 12111.

[0091] For example, Figure 2 As shown, the scale portion 11 rotates around the axis relative to the fixed ring 20 until the scale value 8 is aligned with the second scale 21, the through hole 22 corresponding to the scale value 8 in the first hole group 23 is located above the sixth layer 12116 of the ink, and the through hole 22 corresponding to the scale value 8 in the second hole group 24 is located above the eighth layer 12118 of the ink.

[0092] For example, Figure 3 As shown, the scale portion 11 rotates around the axis relative to the fixed ring 20 until the scale value 2.8 is aligned with the second scale 21, the through hole 22 corresponding to the scale value 2.8 in the first hole group 23 is located above the third ink layer 12113, and the through hole 22 corresponding to the scale value 2.8 in the second hole group 24 is located above the third ink layer 12113.

[0093] By adopting the above technical solution, when the photographer selects a specific scale, the corresponding through hole 22 is located just above the corresponding ink layer 12110, and the ink layer 12110 can be intuitively seen through the through hole 22; the range of rotation of the scale part 11 around the axis is limited, and the ink layer 12110 is stacked in the axial direction to arrange the ink area 1211 in a limited space, avoiding the ink area 1211 being arranged outside the rotation range of the scale part 11; the ink layer 12110 is extended in the circumferential direction of the extension part 12, so that the ink layer 12110 can completely cover the entire range of rotation of the scale part 11 around the axis, thereby ensuring that the display range of the depth of field can cover all aperture sizes corresponding to the scale part 11.

[0094] In some embodiments, at least two ink layers 12110 are the same color.

[0095] The colors of each ink layer 12110 of the ink area 1211 can all be the same color, such as Figure 6 shown.

[0096] Due to space limitations, the distance between two adjacent through holes 22 in the first hole group 23 and the second hole group 24 is often relatively small. In order to facilitate the photographer to quickly identify the through holes 22 located above the ink area 1211, the ink layer 12110 can be set to different colors. For example, each ink layer 12110 is painted with a different color.

[0097] By adopting the above technical solution, it is helpful for the photographer to quickly determine the through hole 22 located above the display area 121, so as to quickly determine the depth of field.

[0098] In some embodiments, the depth of field display mechanism 100 further includes a limiting structure, and the limiting structure is used to limit the circumferential rotation of the extension portion 12 relative to the fixing ring 20 .

[0099] The limiting structure can be a structure such as a matching convex column and a sliding groove, a matching limiting ball and a plurality of limiting grooves.

[0100] Exemplarily, the limiting structure includes a boss provided on the extension portion 12 and a slide groove provided on the fixing ring 20. The boss is adapted to the slide groove. When the extension portion 12 rotates circumferentially relative to the fixing ring 20, the boss slides along the slide groove, thereby limiting the circumferential rotation of the extension portion 12 relative to the fixing ring 20.

[0101] Exemplarily, the limiting structure includes a limiting ball disposed on the extension portion 12 and a limiting groove disposed on the circumferential direction of the inner wall of the fixing ring 20. When the extension portion 12 rotates circumferentially relative to the fixing ring 20, the limiting ball slides in the limiting groove, thereby limiting the circumferential rotation of the extension portion 12 relative to the fixing ring 20.

[0102] By adopting the above technical solution, it is possible to ensure that the extension portion 12 rotates within a specific range and prevent it from over-rotating or exceeding a predetermined boundary. When the photographer selects the scale, the extension portion 12 can only rotate within the limited range, which helps to ensure the accuracy and controllability of the depth of field display, allowing the photographer to better control the depth of field and obtain ideal shooting effects.

[0103] The present application also provides a camera, comprising the above-mentioned depth of field display mechanism 100.

[0104] The depth of field display structure is fixed on the main frame of the camera.

[0105] The camera provided in this embodiment has a plurality of first scales 111 for indicating the size of the aperture value, and a second scale 21 is used as a reference scale. The current aperture value can be accurately determined by the first scale 111 aligned with the second scale 21; the fixing ring 20 is sleeved on the extension portion 12 of the aperture ring 10, so that the scale portion 11 can be rotated relative to the fixing ring 20 around the axis to select a suitable aperture value; the through holes 22 of the first hole group 23 and the through holes 22 of the second hole group 24 correspond to each other with respect to the second scale 21, and when the scale portion 11 is rotated relative to the fixing ring 20 around the axis to the second scale 21, the scale portion 11 is rotated relative to the fixing ring 20 around the axis to the second scale 21. When the first scale 111 is aligned with the corresponding through holes 22 in the first hole group 23 and the corresponding through holes 22 in the second hole group 24 are both located above the display area 121, the photographer can see the display area 121 through the through holes 22 above the display area 121, thereby intuitively determining the corresponding through holes 22 located above the display area 121, and quickly determining the depth of field corresponding to the current first scale 111 based on the corresponding through holes 22, without having to spend too much time looking for and confirming the scale lines and apertures, which helps to achieve rapid identification of the depth of field.

[0106] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A depth of field display mechanism, It is characterized in that include: An aperture ring, the aperture ring comprising a scale portion and an extension portion provided on the scale portion, the scale portion being provided with a plurality of first scales, each of the first scales being arranged at intervals along the circumference of the scale portion, and the extension portion being provided with a display area; A fixing ring, wherein the fixing ring is provided with a second scale and a plurality of through holes, the fixing ring is sleeved on the extension portion, and the fixing ring can be axially rotated relative to the extension portion around the central axis of the scale portion, the plurality of through holes are divided into a first hole group and a second hole group, each of the through holes in the first hole group and each of the through holes in the second hole group are respectively provided on opposite sides of the second scale, and the through holes in the first hole group and the through holes in the second hole group correspond to each other with respect to the second scale; Wherein, the display area and the plurality of through holes are configured such that when the scale portion rotates relative to the fixed orbiting axis until the second scale is aligned with the corresponding first scale, the corresponding through holes in the first hole group and the corresponding through holes in the second hole group are both located above the display area, and each of the through holes located in the display area is used to indicate the depth of field corresponding to the current first scale.

2. The depth of field display mechanism according to claim 1, It is characterized in that The plurality of through holes are any one of circular holes, square holes, strip holes and triangular holes.

3. The depth of field display mechanism according to claim 1, It is characterized in that The through holes of the first hole group are arranged along the axial direction of the fixing ring and are successively away from the second scale; The through holes of the second hole group are sequentially away from the second scale and correspond to the through holes of the first hole group in pairs.

4. The depth of field display mechanism according to claim 3, It is characterized in that The number of the first scales is eight, the number of the through holes in the first hole group is eight, and the number of the through holes in the second hole group is eight.

5. The depth of field display mechanism according to any one of claims 1 to 4, It is characterized in that The extension portion is a closed annular structure, and the central axis of the extension portion coincides with the central axis of the fixing ring.

6. The depth of field display mechanism according to any one of claims 1 to 4, It is characterized in that The visible area includes any one of an ink area, a hollow area, and a groove area.

7. The depth of field display mechanism according to claim 6, It is characterized in that The ink area includes a plurality of ink layers, each of the ink layers corresponds to each of the first scales, and the ink layers corresponding to each of the first scales are stacked in an axial direction and extended in a circumferential direction of the extension portion.

8. The depth of field display mechanism according to claim 7, It is characterized in that At least two of the ink layers have the same color.

9. The depth of field display mechanism according to claim 1, It is characterized in that The depth of field display mechanism further includes a limiting structure, and the limiting structure is used to limit the circumferential rotation of the extension portion relative to the fixing ring.

10. A camera, It is characterized in that It comprises a depth of field display mechanism as described in any one of claims 1-9.

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