Optical lens barrel and optical lens

Abstract

The utility model relates to an optical lens cone and an optical lens, the optical lens cone comprises a lens cone main body, the lens cone main body is provided with an object side surface located at the object side, an image side surface located at the image side, an outer ring surface located at the outer side and an inner ring surface located at the inner side, the outer ring surface comprises at least one platform surface, and an included angle a is formed between the platform surface and the optical axis of the lens cone main body, the included angle a meets the relational expression that a is larger than 20 degrees and smaller than or equal to 90 degrees, the object side face is provided with an object side minimum opening, and the optical axis of the lens barrel body penetrates through the circle center of the object side minimum opening; the lens barrel comprises a lens barrel main body and a plurality of convex structures, the convex structures surround the lens barrel main body and are arranged on the platform surface so as to form a microstructure area, the wavelength range of light reflection of the microstructure area is 380nm to 780nm, and the light reflectivity Rave is less than or equal to 1.5%. According to the optical lens cone, the micro-structures are arranged on the platform surfaces, so that blackening of the appearance of each platform surface on the outer ring surface of the lens cone main body can be considered, the problems of film coating chromatic aberration and gold edges can be avoided, and the extinction effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lens structures, in particular to an optical barrel and an optical lens. Background Art

[0002] With the development of the diversification of lens products, on the premise of ensuring the imaging quality of the lens, the appearance requirements for the lens are getting higher and higher. Usually, after the lens is assembled, when viewed from the external window, not only the top surface of the barrel head can be seen, but sometimes the second platform surface located on the outer surface of the barrel, and even the third platform surface can be seen, which affects the overall aesthetics. In order to make the appearance visual effect of the lens more beautiful after assembly, it is usually necessary to blacken the visible part of the lens barrel.

[0003] At present, the conventional blackening treatment method for the top surface part of the barrel closest to the object side is black plating. However, when black plating is performed on multiple platform surfaces, the appearance effects of each platform cannot be taken into account, and it is easy to produce appearance defects such as color difference and gold edges, which affect the appearance effect of the whole machine. Summary of the Utility Model

[0004] Based on this, in view of the problems of appearance defects such as color difference and gold edges existing after the blackening treatment of the platform surface of the existing lens, it is necessary to provide an optical barrel and an optical lens.

[0005] An optical barrel, comprising:

[0006] A barrel body, the barrel body has an object side surface on the object side, an image side surface on the image side, an outer ring surface on the outer side, and an inner ring surface on the inner side. The outer ring surface includes at least one platform surface. The platform surface forms an angle a with the optical axis of the barrel body, and the angle a satisfies the relational expression 20° < a ≤ 90°. The object side surface is provided with a minimum opening on the object side, and the optical axis of the barrel body passes through the center of the circle of the minimum opening on the object side; and

[0007] A plurality of convex structures, the convex structures are arranged around the barrel body on the platform surface to form a microstructure area, and the wavelength range of the light reflected by the microstructure area is 380nm to 780nm, and the light reflectance Rave ≤ 1.5%.

[0008] In one embodiment, the plurality of convex structures in the microstructure area are arranged centrosymmetrically or axially symmetrically around the optical axis of the barrel body.

[0009] In one embodiment, the optical barrel satisfies the relational expression:

[0010] 0 < L1 / L < 0.5;

[0011] Wherein, L1 is the shortest distance between the platform surface and the object side surface, and L is the length of the lens barrel body.

[0012] In one embodiment, the optical lens barrel satisfies the relational expression:

[0013] 0.3 < φB / φA < 0.9;

[0014] Wherein, φA is the outer diameter of the micro-structure region, and φB is the inner diameter of the micro-structure region.

[0015] In one embodiment, the optical lens barrel satisfies the relational expression:

[0016] 0.2 < (φA - φB) / φC1 < 5;

[0017] Wherein, φA is the outer diameter of the micro-structure region, φB is the inner diameter of the micro-structure region, and φC1 is the minimum diameter of the minimum opening on the object side.

[0018] In one embodiment, the optical lens barrel satisfies the relational expression:

[0019] 1.1 < (π*(φA / 2)^2 - X) / Y < 3;

[0020] Wherein, φA is the outer diameter of the micro-structure region, X is the area of the minimum opening on the object side, and Y is the area of the micro-structure region.

[0021] In one embodiment, both the object side surface and the part of the outer ring surface from the object side surface to the micro-structure region have a blackening treatment layer, and the reflectivity of the blackening treatment layer is less than or equal to 2%.

[0022] In one embodiment, the structures of the plurality of protruding structures in the micro-structure region are one or a combination of a groove-tooth structure, a rectangular protruding structure, and a dot-shaped protruding structure.

[0023] In one embodiment, the micro-structure region satisfies the following relational expression:

[0024] 0.005mm ≤ h ≤ 0.5mm;

[0025] Wherein, h is the height of the protruding structure.

[0026] An optical lens, comprising:

[0027] The optical lens barrel as described in any one of the above;

[0028] A lens assembly, the lens assembly being disposed within the optical lens barrel;

[0029] A plurality of spacer elements, the spacer elements being disposed within the lens assembly;

[0030] A protective glass is provided on the object side of the optical lens barrel. The protective glass is provided with a light-transmitting portion and a light-blocking portion. The positions of the light-transmitting portion and the light-blocking portion correspond to the minimum opening on the object side of the optical lens barrel, and the light-transmitting portion is arranged symmetrically about the optical axis of the lens barrel body or axially symmetrically.

[0031] The optical lens satisfies the following relationship:

[0032] φC1 < φC < φA;

[0033] φB < φA < φD;

[0034] Wherein, φA is the outer diameter of the microstructure region of the optical lens barrel, φB is the inner diameter of the microstructure region of the optical lens barrel, φC1 is the minimum diameter of the minimum opening on the object side of the optical lens barrel, φC is the minimum diameter of the light-transmitting portion, and φD is the maximum diameter of the light-transmitting portion.

[0035] In one embodiment, the microstructure region is an annular surface arranged around the lens barrel body;

[0036] The optical lens barrel satisfies the relationship:

[0037] φB ≤ φC < φA;

[0038] Wherein, φA is the outer diameter of the microstructure region, φB is the inner diameter of the microstructure region, and φC is the minimum diameter of the light-transmitting portion of the protective glass.

[0039] In one embodiment, the optical lens satisfies the following relationship:

[0040] 0.3 < Z / (π*(φA / 2)^2) < 0.95;

[0041] Wherein, φA is the outer diameter of the microstructure region of the optical lens barrel, and Z is the area of the light-transmitting portion.

[0042] By providing a microstructure on the platform surface, the microstructure region can reduce the light reflectivity in the microstructure region by controlling the wavelength range of light reflection through a plurality of protruding structures provided in the microstructure region, so that the microstructure region can replace the blackening treatment, making the platform surface present a super black (i.e., almost no light reflection) effect. In this way, not only can the blackening treatment of each platform surface on the outer ring surface of the optical lens barrel be taken into account, but also problems such as color difference and gold edges caused by coating can be avoided, and the blackening treatment of the platform surface of the optical lens barrel can be reduced, thereby reducing the production cost. Description of the Drawings

[0043] Figure 1Schematic cross-sectional view of an optical lens provided by an embodiment of the present application;

[0044] Figure 2 Schematic cross-sectional view of an optical barrel provided by an embodiment of the present application;

[0045] Figure 3A Schematic diagram of the object side of the first example of the optical barrel provided by the above embodiment of the present application;

[0046] Figure 3B As shown in Figure 3A Enlarged schematic diagram of the partial φA of the first example of the optical barrel shown;

[0047] Figure 4A Schematic diagram of the object side of the second example of the optical barrel provided by the above embodiment of the present application;

[0048] Figure 4B Schematic cross-sectional view of the second example of the optical barrel provided by the above embodiment of the present application;

[0049] Figure 5A Schematic diagram of the object side of the third example of the optical barrel provided by the above embodiment of the present application;

[0050] Figure 5B Schematic cross-sectional view of the third example of the optical barrel provided by the above embodiment of the present application;

[0051] Figure 6A Schematic diagram of the object side of the fourth example of the optical barrel provided by the above embodiment of the present application;

[0052] Figure 6B Schematic cross-sectional view of the fourth example of the optical barrel provided by the above embodiment of the present application.

[0053] Reference numerals: 10, barrel main body; 11, object side; 12, image side; 13, outer ring surface; 130, platform surface; 131, first platform surface; 132, second platform surface; 14, inner ring surface; 20, convex structure; 21, microstructure area; 30, protective glass; 31, light-transmitting part; 32, light-blocking part. Detailed implementation manners

[0054] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following detailed description of the specific embodiments of the present utility model will be provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0055] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0057] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0060] Based on the existing blackening treatment of the platform surface of the lens, the appearance effects of each platform cannot be taken into account, and problems such as color difference and gold edges are likely to occur in appearance. This application provides an optical barrel and an optical lens. By providing microstructures on the platform surface, the optical barrel can take into account the appearance blackening of each platform surface on the outer ring surface of the barrel body, can avoid problems such as coating color difference and gold edges, and achieve an extinction effect.

[0061] Specifically, please refer to Figures 1 to 6A , the optical barrel includes a barrel body 10 and a plurality of convex structures 20. The barrel body 10 has an object side surface 11 on the object side, an image side surface 12 on the image side, an outer ring surface 13 on the outer side, and an inner ring surface 14 on the inner side. The outer ring surface 13 includes at least one platform surface 130. The platform surface 130 forms an angle a with the optical axis of the barrel body 10, and the angle a satisfies the relational expression 20° < a ≤ 90°. The object side surface 11 is provided with a minimum object side opening 110, and the optical axis of the barrel body 10 passes through the center of the circle of the minimum object side opening 110; the convex structures 20 are disposed on the platform surface 130 around the barrel body 10 to form a microstructure region 21. The wavelength range of the light reflected by the microstructure region 21 is 380 nm to 780 nm, and the light reflectance Rave ≤ 1.5%.

[0062] It can be understood that by providing a plurality of convex structures in the micro-structure region 21, the light reflectance within the micro-structure region 21 can be controlled by controlling the wavelength range of light reflection, thereby reducing the light reflectance within the micro-structure region 21. This enables the micro-structure region 21 to replace the blackening treatment, resulting in the platform surface 130 presenting a super black effect (i.e., almost no light reflection). In this way, not only can the blackening treatment of each platform surface 130 on the outer ring surface 13 of the optical barrel be taken into account, but also problems such as color difference and gold edges caused by coating can be avoided. Additionally, the blackening treatment of the platform surface 130 of the optical barrel can be reduced, thereby lowering the production cost.

[0063] Optionally, in some embodiments, the plurality of convex structures within the micro-structure region 21 are arranged symmetrically about the optical axis center of the barrel body 10 or axially symmetrically. With this arrangement, the convex structures within the micro-structure region 21 can be arranged more regularly, making it easier to fabricate the micro-structure region 21. The convex structures within the micro-structure region 21 can be a combination of one or more structures, and are not specifically limited in this application.

[0064] Exemplarily, in some embodiments, the structures of the plurality of convex structures in the micro-structure region 21 are one or a combination of a grooved tooth-like structure, a rectangular convex structure 20, and a dot-like convex structure 20. In this way, when light enters the grooves or other structures, direct reflection can be reduced, thereby achieving a light extinction effect.

[0065] Optionally, as Figure 1 and Figure 2 shown, in one embodiment, the optical barrel satisfies the relationship: 0 < L1 / L < 0.5; where L1 is the shortest distance between the platform surface 130 and the object side surface 11, and L is the length of the barrel body 10. With this arrangement, in the area visible after the front-end TP of the lens is windowed, except for the lens top surface, a super black effect can be achieved even without coating, avoiding the visible gold edges of the barrel coating after the whole machine is windowed.

[0066] Preferably, in one embodiment, the optical barrel satisfies the relationship: 0.3 < φB / φA < 0.9; where φA is the outer diameter of the micro-structure region 21, and φB is the inner diameter of the micro-structure region 21. With this arrangement, by keeping the width of the annular zone of the micro-structure region 21 within a reasonable range, the visual blackening effect of the platform surface 130 of the barrel in the object side direction can be ensured, thereby guaranteeing the aesthetics within the visible range.

[0067] Furthermore, as Figure 1 and Figure 2As shown, in one embodiment, a minimum object-side opening 110 is provided on the object side surface 11 of the object, and the optical axis of the lens barrel body 10 passes through the center of the minimum object-side opening 110. The optical lens barrel satisfies the relationship: 0.2 < (φA - φB) / φC1 < 5; where φA is the outer diameter of the microstructure region 21, φB is the inner diameter of the microstructure region 21, and φC1 is the minimum diameter of the minimum object-side opening 110. With such a setting, by designing the optical lens barrel according to the above relationship, the width of the annular belt of the microstructure region 21 can be within a reasonable range, the size of the minimum object-side opening 110 on the object side surface 11 of the lens barrel can be more reasonable, and the blackening effect of the optical lens barrel in the object side direction can be made more obvious, ensuring the aesthetics within the visible range.

[0068] Preferably, as Figure 1 and Figure 2 shown, in one embodiment, the optical lens barrel satisfies the relationship: 1.1 < (π*(φA / 2)^2 - X) / Y < 3; where φA is the outer diameter of the microstructure region 21, X is the area of the minimum object-side opening 110, and Y is the area of the microstructure region 21. With such a setting, by designing the optical lens barrel according to the above relationship, when the optical lens barrel is in the shape of a cylinder or a trimmed cylinder, etc., the area of the blank space between the microstructure region 21 at the minimum object-side opening 110 of the object side surface 11 of the optical lens barrel and the minimum object-side opening 110 can be within a reasonable range, taking into account both sufficient light entry and the ratio of the blackened area of the non-light effect region, ensuring the aesthetics within the visible range of the object side of the optical lens barrel.

[0069] Preferably, in one embodiment, both the object side surface 11 and the outer ring surface 13 from the object side surface 11 to the part of the microstructure region 21 have a blackening treatment layer, and the reflectivity of the blackening treatment layer is less than or equal to 2%. With such a setting, not only can the direct reflection of light be reduced through the microstructure region 21, bringing a visual effect, but also different treatment processes such as discharging and atomizing can be used to make the reflectivity of the microstructure itself within the range of 1.5%, increasing the extinction effect.

[0070] Particularly, as Figure 1 shown, in one embodiment, the microstructure region 21 satisfies the following relationship: 0.005mm ≤ h ≤ 0.5mm; where h is the height of the convex structure. With such a setting, the convex structure 20 in the microstructure region 21 can reduce light reflection. The higher the height of the convex structure, the more obvious the effect of reducing light reflection. However, considering the limitations of molding and structural shape, the height of the convex structure should not exceed 0.5mm. When the height of the convex structure is less than 0.005mm, the effect of reducing light reflection after processing and forming is not obvious, and the extinction effect is poor.

[0071] Furthermore, as Figure 1As shown in the figure, the optical lens includes: an optical barrel as described in any of the above, a lens assembly, a plurality of spacer elements, and a protective glass 30. The lens assembly is disposed within the optical barrel, the spacer elements are disposed within the lens assembly, the protective glass 30 is disposed on the object side of the optical barrel, the protective glass 30 is provided with a light-transmitting portion 31 and a light-blocking portion 32, the positions of the light-transmitting portion 31 and the light-blocking portion 32 correspond to the minimum opening 110 on the object side of the optical barrel, and the light-transmitting portion 31 is symmetrically arranged about the optical axis center or axisymmetrically along the barrel body 10; the optical lens satisfies the following relational expressions: φC1 < φC < φA; φB < φA < φD; where, φA is the outer diameter of the microstructure region 21 of the optical barrel, φB is the inner diameter of the microstructure region 21 of the optical barrel, φC1 is the minimum diameter of the minimum opening 110 on the object side of the optical barrel, φC is the minimum diameter of the light-transmitting portion 31, and φD is the maximum diameter of the light-transmitting portion 31. With such a setting, it is possible to blacken the microstructure region 21 of the platform surface 130 of the outer ring surface 13 of the barrel of the optical lens. When combined with the protective glass 30, it is possible to ensure that the appearance of the visible part is blackened and beautiful while not affecting the normal light entry of the lens.

[0072] Optionally, as Figure 1 shown, in one embodiment, the microstructure region 21 is an annular surface surrounding the barrel body 10; the optical barrel satisfies the relational expression: φB ≤ φC < φA; where, φA is the outer diameter of the microstructure region 21, φB is the inner diameter of the microstructure region 21, and φC is the minimum diameter of the light-transmitting portion of the protective glass (i.e., the TP window opening size at the front end of the optical lens). With such a setting, by controlling the sizes of the inner diameter and the outer diameter of the microstructure region 21, it is ensured that there is no obvious color difference in the part that can be seen after the TP window is opened at the front end of the lens, achieving the effect of super black.

[0073] Preferably, in one embodiment, the optical lens satisfies the following relational expression: 0.3 < Z / (π*(φA / 2)^2) < 0.95; where, φA is the outer diameter of the microstructure region 21 of the optical barrel, and Z is the area of the light-transmitting portion 31. Designing the optical lens according to the above relational expression can ensure that when the optical barrel is in the shape of a cylinder or a trimmed cylinder, the area of the blank space between the microstructure region 21 at the minimum opening 110 on the object side of the object side surface 11 of the optical barrel and the minimum opening 110 is within a reasonable range, being able to balance the sufficient light entry and the proportion of the blackened area of the non-light effect region, and ensuring the beauty within the visible range on the object side of the optical barrel.

[0074] Exemplarily, the following are specific examples provided by the present application according to the above embodiments. The specific implementation manners of the present application are not limited to the following examples, and the following examples can also be combined.

[0075] As Figure 3A andFigure 3B The figure shows a schematic diagram of the microstructure region 21 of the optical barrel provided by the first example of the present application. Figure 3A Exemplarily, a layout of the microstructure region 21 of the optical barrel of the present application is shown. Among them, within the inner diameter φB, a blackening treatment process is adopted. In the region of the microstructure region 21 from the inner diameter φB to the outer diameter φA, a groove-tooth-shaped protrusion structure 20 is adopted. The grooves and teeth are arranged radially. The distance between the outer tips of the teeth in the microstructure region 21 is x, satisfying the relation 0.005 mm ≤ x ≤ 0.5 mm; the distance between the outer roots of the teeth in the microstructure region 21 is y, satisfying the relation 0.005 mm ≤ y ≤ 0.5 mm; the distance between the inner tips of the teeth in the microstructure region 21 is x1, satisfying the relation 0.005 mm ≤ x1 ≤ 0.5 mm; the distance between the inner roots of the teeth in the microstructure region 21 is y1, satisfying the relation 0.005 mm ≤ y1 ≤ 0.5 mm; the depth of the grooves and teeth in the microstructure region 21 is h, satisfying the relation 0.005 mm ≤ h ≤ 0.5 mm.

[0076] Furthermore, the same optical barrel can have only one type of microstructure region 21, or it can be a combination of multiple types of microstructure regions 21. For example, Figure 4A and Figure 4B As shown, in the second example of the present application, the microstructure region 21 on the first platform surface 131 of the optical barrel adopts a groove-tooth-shaped protrusion structure 20, and the microstructure region 21 on the second platform surface 132 inclinedly arranged on the periphery of the first platform surface 131 adopts a stepped microstructure. Among them, the included angle between the first platform surface 131 and the second platform surface 132 is P, satisfying the relation 0° < P < 90°. The distance between the tips of the teeth in the microstructure region 21 on the first platform surface 131 is x2, satisfying the relation 0.005 mm ≤ x2 ≤ 0.5 mm; the distance between the roots of the teeth in the microstructure region 21 on the first platform surface 131 is y2, satisfying the relation 0.005 mm ≤ y2 ≤ 0.5 mm; the shape of the teeth is an isosceles triangle, and the apex angle is greater than or equal to 15° and less than or equal to 150°. The step width of the microstructure region 21 on the second platform surface 132 is x3 and the height is y3, satisfying the relations 0.005 mm ≤ x3 ≤ 0.5 mm, 0.005 mm ≤ y3 ≤ 0.5 mm. The combination of the above two types of microstructure regions 21 is only for illustration, and the combination of the microstructure regions 21 of the optical writing barrel is not limited to the above two.

[0077] For example, Figure 5A and Figure 5B The figure shows a schematic diagram of the microstructure region 21 of the optical barrel provided by the third example of the present application. Figure 1An exemplary arrangement of the microstructure region 21 of the optical barrel of the present application is shown. Among them, a blackening treatment process is adopted within the inner diameter φB, and the microstructure region 21 within the region from the inner diameter φB to the outer diameter φA adopts a grooved tooth-shaped protrusion structure 20. The grooved teeth are arranged in a straight line direction. The distance between the tooth tips of the microstructure region 21 is z, satisfying the relational expression 0.005 mm ≤ z ≤ 0.5 mm; the distance between the tooth roots of the microstructure region 21 is z1, satisfying the relational expression 0.005 mm ≤ z1 ≤ 0.5 mm.

[0078] As Figure 6A and Figure 6B shown is a schematic diagram of the microstructure region 21 of the optical barrel provided by the fourth example of the present application. Figure 1 An exemplary arrangement of the microstructure region 21 of the optical barrel of the present application is shown. Among them, a blackening treatment process is adopted within the inner diameter φB, and the microstructure region 21 within the region from the inner diameter φB to the outer diameter φA adopts a grooved tooth-shaped protrusion structure 20. The grooved teeth are arranged in a circumferential direction to form a concentric circular grooved tooth or an annular grooved tooth structure. The distance between the tooth tips of the microstructure region 21 is w, satisfying the relational expression 0.005 mm ≤ w ≤ 0.5 mm; the distance between the tooth roots of the microstructure region 21 is w1, satisfying the relational expression 0.005 mm ≤ w1 ≤ 0.5 mm.

[0079] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0080] The above-described embodiments only represent several implementation manners of the present utility model. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An optical lens barrel, characterized in that: include: A lens barrel body, the lens barrel body having an object side surface located on the object side, an image side surface located on the image side, an outer annular surface located on the outer side, and an inner annular surface located on the inner side, the outer annular surface comprising at least one platform surface, the platform surface and the optical axis of the lens barrel body form an angle a, the angle a satisfies the relationship 20°<a≤90°, the object side surface is provided with an object side minimum opening, and the optical axis of the lens barrel body passes through the center of the object side minimum opening; and A plurality of convex structures are arranged on the platform surface around the lens barrel body to form a microstructure area. The wavelength range of light reflected by the microstructure area is 380nm to 780nm, and the light reflectivity Rave is ≤1.5%.

2. The optical lens barrel according to claim 1, characterized in that: The plurality of protruding structures in the microstructure area are arranged symmetrically or axially around the optical axis of the lens barrel body.

3. The optical lens barrel according to claim 1, characterized in that: The optical lens tube satisfies the relationship: 0<L1 / L<0.5; Wherein, L1 is the shortest distance between the platform surface and the object side surface, and L is the length of the lens barrel body.

4. The optical lens barrel according to claim 1, characterized in that: The optical lens tube satisfies the relationship: 0.3<φB / φA<0.9; Wherein, φA is the outer diameter of the microstructure area, and φB is the inner diameter of the microstructure area.

5. The optical lens barrel according to claim 1, characterized in that: The optical lens tube satisfies the relationship: 0.2<(φA-φB) / φC1<5; Wherein, φA is the outer diameter of the microstructure area, φB is the inner diameter of the microstructure area, and φC1 is the minimum diameter of the smallest opening on the object side.

6. The optical lens barrel according to claim 1, characterized in that: The optical lens tube satisfies the relationship: 1.1<(π*(φA / 2)^2-X) / Y<3; Wherein, φA is the outer diameter of the microstructure area, X is the area of ​​the smallest opening on the object side, and Y is the area of ​​the microstructure area.

7. The optical lens barrel according to claim 1, characterized in that: The object side surface and the portion of the outer annular surface from the object side surface to the microstructure area both have a blackening treatment layer, and the reflectivity of the blackening treatment layer is less than or equal to 2%.

8. The optical lens barrel according to any one of claims 1 to 7, characterized in that: The structures of the plurality of protrusion structures in the microstructure area are one or more combinations of groove-shaped structures, rectangular protrusion structures, and dot-shaped protrusion structures.

9. The optical lens barrel according to claim 7, characterized in that: The microstructure region satisfies the following relationship: 0.005mm≤h≤0.5mm; Wherein, h is the height of the protruding structure.

10. An optical lens, characterized in that: include: The optical lens tube according to any one of claims 1 to 9; A lens assembly, wherein the lens assembly is disposed in the optical lens barrel; a plurality of spacer elements disposed within the lens assembly; A protective glass, the protective glass is arranged on the object side of the optical lens barrel, the protective glass is provided with a light-transmitting portion and a non-light-transmitting portion, the positions of the light-transmitting portion and the non-light-transmitting portion correspond to the smallest opening on the object side of the optical lens barrel, and the light-transmitting portion is arranged symmetrically or axially symmetrically along the optical axis of the lens barrel body; The optical lens satisfies the following relationship: φC1<φC<φA; φB<φA<φD; Among them, φA is the outer diameter of the microstructure area of ​​the optical lens barrel, φB is the inner diameter of the microstructure area of ​​the optical lens barrel, φC1 is the minimum diameter of the smallest opening on the object side of the optical lens barrel, φC is the minimum diameter of the light-transmitting portion, and φD is the maximum diameter of the light-transmitting portion.

11. The optical lens barrel according to claim 10, characterized in that: The microstructure area is an annular surface arranged around the lens barrel body; The optical lens tube satisfies the relationship: φB≤φC<φA; Wherein, φA is the outer diameter of the microstructure area, φB is the inner diameter of the microstructure area, and φC is the minimum diameter of the light-transmitting portion of the protective glass.

12. The optical lens according to claim 10, characterized in that: The optical lens satisfies the following relationship: 0.3 <Z / (π*(φA / 2)^2)<0.95; Wherein, φA is the outer diameter of the microstructure area of ​​the optical lens barrel, and Z is the area of ​​the light-transmitting portion.

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