TWI841241B - Optical lens - Google Patents

Abstract

The present invention provides an optical lens, which includes two housings, an annular frame movably disposed between the two housings, a manipulation member connected to the annular frame, and two lenses. Each of the two housings has a plurality of positioning pillars formed on an inner side thereof. The annular frame has a plurality of guiding grooves recessed in an outer surface thereof, and the positioning pillars of the two housings are respectively located in the guiding grooves. The two lenses are respectively assembled to the annular frame and one of the two housings. The manipulation member is configured to rotate the annular frame around an axis or a center relative to the two housings, so that the annular frame is moved in a straight direction parallel to the axis by slidingly abutting against the guiding grooves through the positioning pillars respectively.

Description

Optical lens

The present invention relates to an optical lens, and in particular to an optical lens with adjustable focal length.

The existing optical lens may include a housing and a movable frame mounted on the housing, the movable frame carries a lens, and the focal length can be adjusted by adjusting the position of the movable frame. However, the housing is formed with a spiral track hole exposed to the outside, so the structure of the existing optical lens is difficult to achieve a better waterproof and dustproof effect. Therefore, the inventor believes that the above defects can be improved, and has devoted himself to research and combined with the application of scientific principles, and finally proposed a reasonable design and effective improvement of the above defects of the present invention.

The embodiment of the present invention provides an optical lens that can effectively improve the defects that may occur in existing optical lenses.

The present invention discloses an optical lens, which includes: a first housing, the inner edge of which is formed with a plurality of first positioning posts; a second housing, which is arranged on one side of the first housing, so that the first housing and the second housing together form a receiving space; wherein the inner edge of the second housing is formed with a plurality of second positioning posts; an annular frame, which is located in the receiving space and has a plurality of first guide grooves and a plurality of second guide grooves recessed on the outer surface, the groove width of each of the first guide grooves is gradually increased along a first rotation direction, and the groove width of each of the second guide grooves is gradually increased along a second rotation direction opposite to the first rotation direction; a plurality of the first positioning posts are respectively located in a plurality of the first guide grooves, and a plurality of the second positioning posts are respectively located in a plurality of The second guide groove; a control member located outside the accommodation space and connected to the annular frame, so that the control member can drive the annular frame to rotate along the first rotation direction or the second rotation direction relative to the first shell and the second shell with an axis as the center; and a first lens and a second lens, the first lens is mounted on the first shell, and the second lens is mounted on the annular frame; wherein, when the control member is rotated to drive the annular frame to rotate, the first positioning posts are respectively slidably abutted against the first guide grooves, and the second positioning posts are respectively slidably abutted against the second guide grooves, so that the annular frame moves along a straight line parallel to the axis.

In summary, the optical lens disclosed in the embodiment of the present invention can, through the structural design and mutual matching relationship of multiple components (such as: the first housing, the second housing, the annular frame, and the control member), enable the corresponding track design (such as: multiple first positioning posts, multiple second positioning posts, multiple first guide grooves, and multiple second guide grooves) to be located in the accommodation space and avoid being exposed to the outside, thereby effectively improving the waterproof and dustproof effect of the optical lens.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, such description and drawings are only used to illustrate the present invention and do not limit the scope of protection of the present invention.

100: Optical lens

1: First shell

11: Ring side wall

111: First positioning column

12: Top end

121: Arc slot

122: Buckling structure

2: Second shell

21: Second positioning column

3: Ring frame

3a: Top edge

3b: Bottom edge

31: First guide groove

311: Groove wall

32: Second guide groove

321: Groove wall

33: Extension arm

34: Buckle slot

4: Control parts

41: Buckle slot

42: Extension arm

5: Cover

51: Open mouth

52: Hook

6: First lens

7: Second lens

8: Display screen

G1: First gasket

G2: Second gasket

G3: Adhesive layer

S: Storage space

σ31: first center angle

σ32: Second center angle

R1: First rotation direction

R2: Second rotation direction

C: Axis

L: Straight line direction

Figure 1 is a three-dimensional schematic diagram of the optical lens of the first embodiment of the present invention.

Figure 2 is a schematic diagram of the decomposition of Figure 1.

Figure 3 is a schematic diagram of another perspective of Figure 1.

Figure 4 is a schematic cross-sectional view of Figure 1 along the section line IV-IV.

Figure 5 is a schematic cross-sectional view of Figure 1 along the section line V-V.

Figure 6 is a top view of the annular frame in Figure 2.

Figure 7 is a three-dimensional cross-sectional schematic diagram of Figure 1.

FIG8 is a three-dimensional cross-sectional schematic diagram of the optical lens in FIG7 after the control member and the annular frame are rotated.

Figure 9 is a three-dimensional schematic diagram of the optical lens of the second embodiment of the present invention.

Figure 10 is a schematic diagram of the decomposition of Figure 9.

Figure 11 is a schematic cross-sectional view of Figure 9 along the section line XI-XI.

The following is a specific embodiment to illustrate the implementation of the "optical lens" disclosed in the present invention. The technical personnel in this field can understand the advantages and effects of the present invention from the content disclosed in this manual. The present invention can be implemented or applied through other different specific embodiments, and the details in this manual can also be modified and changed based on different viewpoints and applications without deviating from the concept of the present invention. In addition, the attached drawings of the present invention are only for simple schematic illustrations and are not depicted according to actual sizes. Please note in advance. The following implementation will further explain the relevant technical content of the present invention in detail, but the disclosed content is not used to limit the scope of protection of the present invention.

It should be understood that although the terms "first", "second", "third" and so on may be used in this article to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used in this article may include any one or more combinations of the related listed items depending on the actual situation.

[Implementation Example 1]

Please refer to FIG. 1 to FIG. 8 , which are the first embodiment of the present invention. As shown in FIG. 1 to FIG. 3 , this embodiment discloses an optical lens 100, which has the function of adjusting the focal length. The optical lens 100 in this embodiment includes a first housing 1, a second housing 2 disposed on one side of the first housing 1, an annular frame 3, a control member 4 connected to the annular frame 3, a cover 5 fixed to the first housing 1 and the control member 4, a first lens 6 mounted on the first housing 1, a second lens 7 mounted on the annular frame 3, and a display screen 8 mounted on the second housing 2, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, at least one of the cover 5 and the display screen 8 can be omitted or replaced by other components.

It should be noted that the first shell 1 and the second shell 2 are described as immovable components in this embodiment, and the first shell 1 and the second shell 2 are detachably fixed together by buckling and screws, so that the first shell 1 and the second shell 2 together surround a containing space S, but it is not limited to this. For example, in other embodiments not shown in the present invention, the first shell 1 and the second shell 2 can also be fixed together non-detachably.

In this embodiment, as shown in Figures 2 to 5, the first housing 1 and the second housing 2 are each roughly annular (or ring-shaped) and the center of the circle is located on an axis C, and the inner edge of the first housing 1 is formed with a plurality of first positioning posts 111, and the inner edge of the second housing 2 is formed with a plurality of second positioning posts 21. Each of the first positioning posts 111 is a long strip structure parallel to the axis C, and each of the second positioning posts 21 is also a long strip structure parallel to the axis C.

In more detail, the first housing 1 includes an annular side wall 11 and a top end portion 12 connected to the top edge of the annular side wall 11, and a plurality of the first positioning columns 111 are formed on the inner edge of the annular side wall 11. The first housing 1 is formed with a plurality of arc-shaped slots 121 and a plurality of buckling structures 122 at the top end portion 12, the arc centers of the plurality of arc-shaped slots 121 are all located on the axis C, and the plurality of arc-shaped slots 121 have substantially the same radius, and a buckling structure 122 is disposed between any two adjacent arc-shaped slots 121.

In addition, the positions of the plurality of first positioning posts 111 are offset from the positions of the plurality of arc-shaped slots 121 (e.g., FIG. 5 ), and the positions of the plurality of first positioning posts 111 are respectively roughly corresponding to the positions of the plurality of second positioning posts 21 , but any of the first positioning posts 111 and the corresponding second positioning posts 21 are offset from each other by a predetermined distance (e.g., FIG. 7 ), but the present invention is not limited thereto.

It should be noted that the annular frame 3 and the control member 4 are described as movable components in this embodiment. The annular frame 3 is located in the accommodating space S, and the control member 4 is located outside the accommodating space S and connected to the annular frame 3, so that the control member 4 can drive the annular frame 3 to rotate with the axis C as the center and relative to the first shell 1 and the second shell 2 along a first rotation direction R1 (such as: counterclockwise direction in Figure 2) or a second rotation direction R2 opposite to the first rotation direction R1 (such as: clockwise direction in Figure 2).

In this embodiment, the center of the annular frame 3 is approximately located on the axis C, and a plurality of extension arms 33 are formed on the top of the annular frame 3, each of which is parallel to the axis C. The control member 4 is annular and surrounds the outer side of the first shell 1, and a plurality of retaining grooves 41 are formed on the inner edge of the control member 4, so that the plurality of extension arms 33 are respectively snapped into the plurality of retaining grooves 41 (such as: Figure 5).

Further, as shown in Figures 2 to 5, the annular frame 3 (located in the accommodating space S) is a plurality of extension arms 33 that pass through a plurality of arc-shaped slots 121, and are further connected to a plurality of buckling slots 41 of the operating member 4 (located outside the accommodating space S). That is, when the operating member 4 is rotated, each buckling slot 41 moves along the corresponding arc-shaped slot 121, and further drives the annular frame 3 to rotate together through the extension arms 33 connected thereto.

Furthermore, the annular frame 3 faces the first shell 1 and the second shell 2 with its outer surface, and the annular frame 3 is recessed with a plurality of first guide grooves 31 and a plurality of second guide grooves 32 on the outer surface. The width of each first guide groove 31 increases gradually along the first rotation direction R1, and the width of each second guide groove 32 increases gradually along the second rotation direction R2.

In this embodiment, a plurality of the first guide grooves 31 are recessed from the top edge 3a of the annular frame 3 to form a groove wall 311 (i.e., the first guide groove 31 does not extend to the bottom edge 3b of the annular frame 3), and a plurality of the second guide grooves 32 are recessed from the bottom edge 3b of the annular frame 3 to form a groove wall 321 (i.e., the second guide groove 32 does not extend to the top edge 3a). The groove width refers to the width of the first guide groove 31 (or the second guide groove 32) in a straight line direction L parallel to the axis C; or, the groove width of the first guide groove 31 can also be regarded as the distance of the groove wall 311 relative to the top edge 3a in the straight line direction L, and the groove width of the second guide groove 32 can also be regarded as the distance of the groove wall 321 relative to the bottom edge 3b in the straight line direction L.

It should be further explained that the plurality of first guide grooves 31 and the plurality of second guide grooves 32 preferably do not penetrate the annular frame 3 in the radial direction of the annular frame 3, so as to prevent external particles or water vapor from passing through the annular frame 3 via the first guide grooves 31 and the second guide grooves 32.

Furthermore, the positions of the plurality of first guide grooves 31 correspond to the positions of the plurality of second guide grooves 32, so as to more accurately control the movement of the annular frame 3, and the above-mentioned position correspondence method can be adjusted and changed according to design requirements. For example, the groove wall 311 of each first guide groove 31 is parallel to the groove wall 321 of the corresponding second guide groove 32; or, as shown in FIG7 , the groove wall 311 of each first guide groove 31 overlaps at least 70% of the groove wall 321 of the corresponding second guide groove 32 in a direction perpendicular to the straight direction L (such as the first rotation direction R1 or the second rotation direction R2); or, the groove wall 311 of each first guide groove 31 overlaps at least 50% of the groove wall 321 of the corresponding second guide groove 32 in the straight direction L.

In addition, the number of the plurality of first guide grooves 31 in this embodiment is equal to the number of the plurality of second guide grooves 32. In this embodiment, as shown in FIG6 , the number of the plurality of first guide grooves 31 is illustrated as three in this embodiment, and each of the first guide grooves 31 is formed with a first central angle σ 31 between 25 degrees and 100 degrees corresponding to the axis C, and the corresponding second guide groove 32 is formed with a second central angle σ 32 corresponding to the axis C, which is between 90% and 110% of the first central angle σ 31 (e.g., the first central angle σ 31 is preferably equal to the second central angle σ 32), but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the number of the first guide grooves 31, the number of the second guide grooves 32, the first central angle σ 31, and the second central angle σ 32 can all be adjusted according to design requirements.

Furthermore, as shown in FIG. 7 and FIG. 8 , the annular frame 3 is installed and limited in the first housing 1 and the second housing 2, and the first positioning posts 111 of the first housing 1 are respectively located in the first guide grooves 31 of the annular frame 3, and the second positioning posts 21 of the second housing 2 are respectively located in the second guide grooves 32 of the annular frame 3.

In more detail, when the operating member 4 is rotated to drive the annular frame 3 to rotate (along the first rotation direction R1 or the second rotation direction R2), the first positioning posts 111 are respectively in contact with the groove walls 311 of the first guide grooves 31, and the second positioning posts 21 are respectively in contact with the groove walls 321 of the second guide grooves 32, so that the first positioning posts 111 and the second positioning posts 21 slide in the first guide grooves 31 and the second guide grooves 32. Accordingly, the annular frame 3 can move along the straight line direction L to adjust the relative position of the second lens 7 relative to the first lens 5 and the display screen 8, thereby achieving the effect of adjusting the focal length.

As described above, the optical lens 100 in this embodiment can be positioned in the accommodation space S and avoid being exposed to the outside through the structural design and mutual matching relationship of multiple components (such as: the first housing 1, the second housing 2, the annular frame 3, and the control member 4) so that the corresponding track design (such as: multiple first positioning columns 111, multiple second positioning columns 21, multiple first guide grooves 31, and multiple second guide grooves 32) can be effectively improved. The waterproof and dustproof effect of the optical lens 100 is effectively improved.

Furthermore, as shown in FIGS. 2 to 4 , the cover 5 is annular and surrounds an opening 51, and a plurality of hooks 52 are formed on the bottom side of the cover 5. The cover 5 is respectively fastened to the plurality of fastening structures 122 of the first housing 1 by the plurality of hooks 52 to be fixed to the first housing 1. Accordingly, the cover 5 shields the plurality of arc-shaped slots 121 of the first housing 1 along the straight direction L, and the first lens 6 mounted on the first housing 1 is exposed to the outside from the opening 51 of the cover 5. Furthermore, the cover 5 surrounds the outer side of the operating member 4, and the outer edge of the cover 5 is roughly aligned with the outer side surface of the operating member 4.

In addition, in order to further enhance the waterproof and dustproof effect of the optical lens 100, the optical lens 100 may also be provided with a first gasket G1, a second gasket G2, and an adhesive layer G3. The first gasket G1 is annular and is sleeved on the annular side wall 11 of the first housing 1, so that the first gasket G1 is clamped between the control member 4 and the first housing 1. In other words, the control member 4 is disposed on the first housing 1 through the first gasket G1. Furthermore, the second gasket G2 is annular and is sleeved on the top of the control member 4, so that the second gasket G2 is clamped between the cover 5 and the control member 4. In other words, the cover 5 is disposed on the control member 4 via the second gasket G2. In addition, the adhesive layer G3 can be a double-sided adhesive, which is in the shape of a circular ring and is disposed between the cover 5 and the first lens 6 to prevent particles or water vapor from entering the internal space.

Accordingly, the optical lens 100 can achieve a waterproof and dustproof effect between the control member 4 and the first housing 1 through the first gasket G1, a waterproof and dustproof effect between the cover 5 and the control member 4 through the second gasket G2, and a waterproof and dustproof effect between the cover 5 and the first lens 6 through the adhesive layer G3.

[Implementation Example 2]

Please refer to Figures 9 to 11, which are the second embodiment of the present invention. Since this embodiment is similar to the above-mentioned first embodiment, the similarities between the two embodiments will not be described in detail. The difference between this embodiment and the above-mentioned first embodiment mainly lies in: the connection relationship between the annular frame 3 and the control member 4.

In this embodiment, the annular frame 3 is provided with a plurality of retaining grooves 34 on the outer surface, and the operating member 4 (inner edge) is formed with a plurality of extension arms 42, and each of the extension arms 42 is a strip-shaped structure parallel to the axis C. The plurality of extension arms 42 respectively pass through the plurality of arc-shaped slots 121 of the first shell 1, and then respectively snap into the plurality of retaining grooves 34, so that when the operating member 4 is rotated, each of the extension arms 42 moves along the corresponding arc-shaped slot 121, and then drives the annular frame 3 to rotate together through the retaining grooves 34 connected thereto.

[Technical effects of the embodiments of the present invention]

In summary, the optical lens disclosed in the embodiment of the present invention can, through the structural design and mutual matching relationship of multiple components (such as: the first housing, the second housing, the annular frame, and the control member), enable the corresponding track design (such as: multiple first positioning posts, multiple second positioning posts, multiple first guide grooves, and multiple second guide grooves) to be located in the accommodation space and avoid being exposed to the outside, thereby effectively improving the waterproof and dustproof effect of the optical lens.

Furthermore, the optical lens disclosed in the embodiment of the present invention can be further configured with components (e.g., the cover shields the plurality of arc-shaped slots of the first housing along the straight line direction; the first gasket is clamped between the control member and the first housing; the second gasket is clamped between the cover and the control member; the adhesive layer is attached between the cover and the first lens) to enhance the waterproof and dustproof effect.

The above disclosed contents are only the preferred feasible embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the contents of the specification and drawings of the present invention are included in the patent scope of the present invention.

100: Optical lens

1: First shell

11: Ring side wall

111: First positioning column

2: Second shell

21: Second positioning column

3: Ring frame

3a: Top edge

3b: Bottom edge

31: First guide groove

311: Groove wall

32: Second guide groove

321: Groove wall

4: Control parts

5: Cover

6: First lens

8: Display screen

G1: First gasket

G2: Second gasket

S: Storage space

R1: First rotation direction

R2: Second rotation direction

C: Axis

L: Straight line direction

Claims (14)

An optical lens comprises: a first housing, a plurality of first positioning posts are formed on the inner edge of the first housing; a second housing, which is arranged on one side of the first housing, so that the first housing and the second housing together form a receiving space; wherein the inner edge of the second housing is formed with a plurality of second positioning posts; an annular frame, which is located in the receiving space and has a plurality of first guide grooves and a plurality of second guide grooves recessed on the outer surface, the groove width of each of the first guide grooves is gradually increased along a first rotation direction, and the groove width of each of the second guide grooves is gradually increased along a second rotation direction opposite to the first rotation direction; a plurality of the first positioning posts are respectively located in a plurality of the first guide grooves, and a plurality of the second positioning posts are respectively located in a plurality of the second guide grooves. The invention relates to a control member, which is located outside the accommodation space and connected to the annular frame, so that the control member can drive the annular frame to rotate along the first rotation direction or the second rotation direction relative to the first shell and the second shell with an axis as the center; and a first lens and a second lens, the first lens is mounted on the first shell, and the second lens is mounted on the annular frame; wherein, when the control member is rotated to drive the annular frame to rotate, the first positioning posts are respectively slidably abutted against the first guide grooves, and the second positioning posts are respectively slidably abutted against the second guide grooves, so that the annular frame moves along a straight line parallel to the axis. An optical lens as described in claim 1, wherein the control member is annular and surrounds the outer side of the first housing, and the optical lens includes a first gasket, and the control member is disposed on the first housing via the first gasket. As described in claim 1, the top of the annular frame is formed with a plurality of extension arms, and the inner edge of the control member is formed with a plurality of retaining grooves, and the plurality of extension arms are respectively snapped into the plurality of retaining grooves. The optical lens as described in claim 3, wherein the first housing is annular and has a plurality of arc-shaped slots, and the plurality of extension arms of the annular frame pass through the plurality of arc-shaped slots to connect to the plurality of buckling slots of the control member. The optical lens as described in claim 4, wherein the optical lens includes a cover fixed to the first housing and the control member, and the cover shields the plurality of arc-shaped slots along the straight line direction, the cover includes an opening, and the first lens is exposed to the outside from the opening of the cover. The optical lens as described in claim 5, wherein the cover is annular, and the optical lens further comprises a second gasket, and the cover is disposed on the control member via the second gasket. An optical lens as described in claim 1, wherein the positions of the plurality of first guide grooves correspond to the positions of the plurality of second guide grooves, and each of the first guide grooves forms a first central angle of 25 degrees to 100 degrees corresponding to the axis, and the corresponding second guide groove forms a second central angle of 90% to 110% of the first central angle corresponding to the axis. The optical lens as described in claim 7, wherein each of the first guide grooves and each of the second guide grooves further comprises a groove wall, a plurality of the first positioning posts and a plurality of the second positioning posts respectively abut against the groove walls of the plurality of the first guide grooves and the groove walls of the plurality of the second guide grooves for sliding, and the groove wall of each of the first guide grooves is parallel to the groove wall of the corresponding second guide groove. An optical lens as described in claim 8, wherein the groove wall of each first guide groove overlaps at least 70% of the groove wall of the corresponding second guide groove in a direction perpendicular to the straight line direction. An optical lens as described in claim 8, wherein the groove wall of each first guide groove overlaps at least 50% of the groove wall of the corresponding second guide groove in the straight line direction. An optical lens as described in claim 1, wherein the annular frame includes a top edge and a bottom edge, and a plurality of the first guide grooves are recessed from the top edge and do not extend to the bottom edge, and a plurality of the second guide grooves are recessed from the bottom edge and do not extend to the top edge. An optical lens as described in claim 1, wherein the plurality of first guide grooves and the plurality of second guide grooves do not penetrate the annular frame in the radial direction of the annular frame. An optical lens as described in claim 1, wherein the optical lens further comprises a display screen mounted on the second housing. As described in claim 1, the annular frame has a plurality of retaining grooves on the outer surface, and the control member is formed with a plurality of extension arms, and the plurality of extension arms are respectively snapped into the plurality of retaining grooves.

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