TWI591396B - Camera lens mechanism - Google Patents

Description

Lens mechanism

The present invention relates to a lens mechanism.

In a lens mechanism, the focus ring is rotated relative to the lens barrel to perform focusing or zooming required for image taking. Therefore, it is necessary to provide a limit or locking mechanism that limits the rotation of the swivel within a certain range. For example, as shown in FIG. 1, the swivel 102 of the lens mechanism 100 can be rotated relative to the lens barrel 104 to perform a focusing operation during image taking, and the swivel 106 can be rotated relative to the lens barrel 108 for zooming during image taking. operating. The swivel 102 can be stopped by a positioning post 110 to limit its range of rotation, and the swivel 106 can be blocked by a stop screw 112 to limit its range of rotation. However, by using an external component such as the positioning post 110 and the stopper screw 112 as a stopper mechanism for restricting the rotation range of the rotary ring, not only the space is occupied but also the component cost is increased, and the looseness is likely to occur under long-term use, and the reliability is lowered. Limit accuracy.

The "prior art" paragraphs are only intended to aid in understanding the present invention, and thus the disclosure of the "prior art" section may contain some conventional techniques that are not known to those of ordinary skill in the art. The matters disclosed in the "Prior Art" section do not necessarily represent the subject matter or the problems to be solved by one or more embodiments of the present invention, which are known or recognized by those of ordinary skill in the art prior to the present application.

The present invention provides a lens mechanism.

The objects and advantages of the present invention can be derived from the techniques disclosed in the present invention. The levy was further understood.

For one or part or all of the above purposes or for other purposes, this is A lens mechanism according to an embodiment includes a first sleeve, a first rotating ring, a second sleeve and a second rotating ring. One end of the first sleeve forms a convex ring portion, and the convex ring portion is formed with at least one first convex block. The first rotating sleeve is sleeved on the first sleeve to rotate relative to the first sleeve. One end of the first rotating ring is provided with a groove, and a second protrusion is formed in the groove. The second sleeve is in position to engage the first sleeve and has at least one perforation and a rib structure. The rib structure is formed along a circumference of the second sleeve, and the vacancy on the circumference where the rib structure is not formed constitutes a groove. The card groove of the first rotating ring engages the rib structure such that the second protrusion in the groove interferes with the groove, and both ends of the groove block the second protrusion to restrict the first rotating ring from rotating within a rotation range . The second rotating sleeve is sleeved on the second sleeve to rotate relative to the second sleeve, and the second rotating ring has a cylinder and a slot for connecting the cylinder. The first protrusion of the first sleeve passes through the through hole of the second sleeve and opposes the card slot, and both ends of the card slot block the first protrusion to restrict the rotation of the second rotating ring within a range of rotation.

With the design of the above embodiment, each limit or card in the lens mechanism The stopping structure can be directly disposed or formed on the lens barrel or the rotating ring, so that it is not necessary to use an external component such as a screw or a positioning post to limit the rotation range of each rotating ring, thereby simplifying the rotation limit mechanism of the lens and reducing the component cost. Moreover, the reliability and limit accuracy of the limit or locking structure can be improved. Furthermore, the partial or all of the limit or locking structure can be integrally formed with the coupled barrel or swivel by means of, for example, injection molding, which makes the component manufacturing process easier and further reduces the manufacturing cost.

Other objects and advantages of the present invention can be derived from the techniques disclosed herein Further understanding of the features. The above and other objects, features, and advantages of the invention will be apparent from

10‧‧‧Lens mechanism

11‧‧‧Sleeve assembly

11a‧‧‧Sleeve body

11b‧‧‧First machine

11c‧‧‧Second parts

12‧‧‧First sleeve

121‧‧‧Cylinder

122‧‧‧ convex ring

14‧‧‧First Swing

14a‧‧‧ Third parts

14b‧‧‧Cylinder

141‧‧‧ inner circumference

142‧‧‧ outer periphery

143‧‧‧ card ditch

144‧‧‧ chute

16‧‧‧Second sleeve

161‧‧‧Cylinder

162‧‧‧ disc section

162a‧‧‧First side wall

162b‧‧‧second side wall

162c‧‧‧ rib structure

18‧‧‧Second swivel

181‧‧‧Cylinder

181a‧‧‧4th machine

181b‧‧‧ chute

22, 24‧‧‧ lenses

32, 34‧‧‧ lens tube area

100‧‧‧Lens mechanism

102, 106‧‧‧ tow

104, 108‧‧‧ lens barrel

110‧‧‧Positioning column

112‧‧‧stop screw

E1, E2‧‧‧ endpoint

M1, M2, N1, N2, P1, P2, R1, R2‧‧‧ contact points

P, M‧‧‧ bumps

N‧‧‧ groove

Q‧‧‧Perforation

R‧‧‧ card slot

Figure 1 is a schematic illustration of a conventional lens mechanism.

2 is an exploded view of a lens mechanism according to an embodiment of the present invention,

3 is a schematic view showing the assembly of a first swivel and a first sleeve according to an embodiment of the invention.

4 is a schematic view showing the assembly of a second swivel and a second sleeve according to an embodiment of the invention.

FIG. 5 is a schematic view of the lens mechanism of FIG. 2 after assembly.

Figure 6 is a cross-sectional view showing the structure of a lens equipped with a lens according to an embodiment of the present invention.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.

2 is an exploded perspective view of a lens mechanism according to an embodiment of the present invention. As shown in FIG. 2, a lens mechanism 10 includes a sleeve assembly 11, a first swivel 14 and a second swivel 18. In the present embodiment, the sleeve assembly 11 is illustrated as including a first sleeve 12 and a second sleeve 16. In other embodiments, the sleeve assembly 11 can also be a single barrel or more than two barrels without limitation. The sleeve assembly 11 is provided with a sleeve body 11a, a first mechanical member 11b and a second mechanical member 11c. In this embodiment, the first sleeve 12 of the sleeve assembly 11 can include a cylindrical body 121 and a convex ring portion 122 connected to one end of the cylindrical body 121, and the second mechanical member 11c can be formed, for example, in the convex ring portion. The second sleeve 16 of the sleeve assembly 11 can include a cylinder 161 and a disc portion 162 connected to one end of the cylinder 161. The outer diameter of the disc portion 162 can be larger than the cylinder 161. Outer diameter and phase A first side wall 162a and a second side wall 162b, the first side wall 162a is connected to the cylinder 161 and the second side wall 162b can have an annular shape, and the first mechanism 11b can be disposed on the second sleeve 16, for example. One end of the first swivel 14 may be provided with a third member 14a, and the first swivel 14 may be a hollow cylinder having an inner periphery 141 and an outer periphery 142. In the embodiment, on one end of the first rotating ring 14, a groove 143 can be formed between the inner periphery 141 and the outer periphery 142, and the third mechanism 14a can be, for example, a convex formed in the groove 143. Block M. Furthermore, in the embodiment, the first swivel 14 can have the shape of a hollow cylinder, and the groove 143 can be an annular groove corresponding to the outer shape of the first swivel 14 and the inner wall of the first swivel 14 A plurality of diagonal grooves 144 may be formed. The second rotating ring 18 can be provided with a fourth member 181a. The second rotating member 18 can have a cylindrical body 181. In this embodiment, the fourth mechanical member 181a can be formed, for example, along a side wall of the cylindrical body 181. The card slot R, and the inner wall of the cylinder 181 can form a plurality of chutes 181b. As shown in FIG. 3 , the first rotating ring 14 can be sleeved on the cylindrical body 121 of the first sleeve 12 to rotate relative to the first sleeve 12 . As shown in FIG. 4, the second rotating ring 18 can be sleeved on the cylindrical body 161 of the second sleeve 16 to rotate relative to the second sleeve 16. After the second rotating ring 18 is sleeved on the second sleeve 16, the card is inserted. The groove R may be adjacent to the first side wall 162a of the disk portion 162. The first side wall 162a of the disk portion 162 has at least one through hole Q, and the rib structure 162c is formed along the circumference of the annular second side wall 162b, and the vacancy of the rib structure 162c on the circumference of the second side wall 162b constitutes a groove N. In this embodiment, the first mechanism 11b disposed on the second sleeve 16 can be a recess N. The rib structure 162c may be annular corresponding to the circumference of the second side wall 162b, and the range of the groove N may extend from the end point E1 of the rib structure along the circumference and the clockwise direction of the second side wall 162b to the end point E2 of the rib structure. (within the range indicated by the left and right arrows). It should be noted here that the arc shape of the card slot R and the groove N is merely illustrative and not limiting.

Referring to FIG. 2 again, the first rotating ring 14 can be sleeved in the first assembly. The cylinder 121 of the sleeve 12 and the second rotating ring 18 can be sleeved on the cylinder 161 of the second sleeve 16 . And the first sleeve 12 is in positional engagement with the second sleeve 16, wherein the second part 11c of the first sleeve 12 (for example, the protrusion P) passes through the perforation Q of the second sleeve 16 and interferes with the second rotation. The fourth mechanism 181a of the ring 18 (e.g., the card slot R). Therefore, as shown in FIG. 4, when the second swivel 18 is rotated, the second mechanism 11c (for example, the bump P) can slide in the direction of both ends of the arrow in the fourth mechanism 181a (for example, the card slot R), and The contact points R1, R2 of the two ends of the fourth mechanism 181a (for example, the card slot R) can block the second mechanism 11c (for example, the bump P) to limit the rotation of the second rotating ring 18 in the left and right directions. Rotate within the range. That is, the fourth mechanism 181a is provided with a first contact point R1 and a second contact point R2, and the second mechanism 11c is provided with a first contact point P1 and a second contact point P2, and the second mechanism 11c is The first contact point R1 of the fourth mechanism 181a moves between the second contact point R2, and when the first contact point P1 of the second mechanism 11c is pressed against the first contact point R1 of the fourth mechanism 181a, The two parts 11c can no longer move in the same direction, and when the second contact point P2 of the second mechanism 11c is pressed against the second contact point R2 of the fourth mechanism 181a, the second mechanism 11c can no longer be the same Move in direction.

Furthermore, the card groove 143 of the first swivel 14 can be engaged with the second during assembly. The rib structure 162c of the sleeve 16 causes the projection M to abut against the first member 11b (for example, the groove N), and therefore, as shown in FIG. 4, the third of the first swivel 14 when the first swivel 14 is rotated The mechanism 14a (e.g., the projection M) is slidable within the first member 11b (e.g., the recess N), and both ends of the first member 11b (e.g., the recess N) can block the third member 14a ( For example, the projections M) are rotated within a range of rotation that limits the first swivel 14 to the left and right directional arrows. That is, the third mechanism 14a is provided with a first contact point M1 and a second contact point M2, and the third mechanism 14a is at the second contact point of the first contact point N1 of the first mechanism 11b and the first mechanism 11b. Moving between N2, when the first contact point M1 of the third mechanism 14a is against the first contact point N1 of the first mechanism 11b, the third mechanism 14a can no longer move in the same direction, and when the third When the second contact point M2 of the mechanism 14a is pressed against the second contact point N2 of the first mechanism 11b, the third mechanism 14a can no longer be moved in the same direction. One of the assembled lens structures 10 The implementation is shown in Figure 5, for example.

It should be noted here that the first mechanical component 11b and the third mechanical component 14a need only have a pair. For example, in one embodiment, the first mechanism 11b may be a groove and the third mechanism 14a may be a protrusion, and in another embodiment, the first mechanism 11b can be a bump and the third mechanism 14a can be a groove. Similarly, the second mechanism 11c and the fourth mechanism 181a need only have corresponding shapes that can be mutually snap-fitted. For example, in an embodiment, the second mechanism 11c can be a bump and a fourth mechanism. The 181a may be a groove, and in another embodiment the second member 11c may be a groove and the fourth member 181a may be a bump.

6 is a view showing a lens machine equipped with a lens according to an embodiment of the invention Schematic diagram of the structure. As shown in FIG. 6, the lens mechanism can have a first barrel region 32 and a second barrel region 34. The first barrel region 32 is provided with at least one lens 22 and a first coupling member (for example, a projection 32a). The first rotating ring 14 is provided with a second coupling member (for example, the cylindrical body 14b provided with the inclined groove 144), and the first connecting member and the second connecting member are correspondingly designed to each other, and the second barrel The area 34 is provided with at least one lens 24 and a third coupling member (for example, a projection 34a), and the second rotating ring 18 is provided with a fourth coupling member (for example, a cylinder 181 provided with a chute 181b), and a third The interlocking design of the connecting motive member and the fourth motive component are corresponding to each other. When the first rotating ring 14 is sleeved on the first sleeve 12, the protrusion 32a can be located in the chute 144, and when the second rotating ring 18 is sleeved on the second sleeve 16, the protrusion 34a can be located in the chute Within 181b. Therefore, when the first swivel 14 is rotated relative to the first sleeve 12, the chute 144 of the first swivel 14 can guide and drive the protrusion 32a of the first barrel region 32 to cause linear motion of the first barrel region 32. Therefore, the lens 22 can be linearly moved to perform focusing operation such as image capturing, and when the second rotating ring 18 is rotated relative to the second sleeve 16, the chute 181b of the second rotating ring 18 can be guided and driven. The projection 34a of the second barrel region 34 causes the second barrel region 34 to move linearly, so that the lens 24 can be linearly moved to perform, for example, zooming at the time of image capturing. Due to the various limit or locking structures shown in Figure 6 (bump P, perforation Q, The card slot R, the lug M, and the recess N) can be directly disposed or formed on the lens barrel or the swivel ring, so that it is not necessary to use an external component such as a screw or a positioning post to limit the rotation range of each revolving ring, which simplifies The rotation mechanism of the lens reduces the component cost and improves the reliability and positioning accuracy of the limit or locking structure. Furthermore, in an embodiment, at least part of the limit or locking structure (bump P, perforation Q, card slot R, bump M, groove N) shown in FIG. 6 can be associated with the lens barrel or the swivel ring. It is integrally molded by, for example, injection molding. For example, the connecting portion of the first mechanism and the sleeve assembly and the connecting portion of the third member and the first rotating ring, at least one of the two may be integrally formed, and the second member and the sleeve assembly are The connecting portion and the connecting portion of the fourth mechanism and the second rotating ring, at least one of the two may be integrally formed. Furthermore, the distribution manner or the number of the above-mentioned correspondingly matched components on the sleeve assembly and the swivel ring is not limited at all, and only the effect of limiting the rotation range of the swivel can be obtained.

With the design of each of the above embodiments, each limit in the lens mechanism Or the locking structure can be directly disposed or formed on the lens barrel or the rotating ring, so that it is not necessary to use an external component such as a screw or a positioning post to limit the rotation range of each rotating ring, thereby simplifying the rotation limit mechanism of the lens and reducing the member. Cost, and can improve the reliability and limit accuracy of the limit or locking structure. Furthermore, the partial or all of the limit or locking structure can be integrally formed with the coupled barrel or swivel by means of, for example, injection molding, which makes the component manufacturing process easier and further reduces the manufacturing cost.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the terms "first" and "second" as used in the specification or the scope of the claims are only used to name the components or distinguish different embodiments or ranges, and are not intended to limit the upper or lower limits of the number of components. .

10‧‧‧Lens mechanism

11‧‧‧Sleeve assembly

11a‧‧‧Sleeve body

11c‧‧‧Second parts

12‧‧‧First sleeve

121‧‧‧Cylinder

122‧‧‧ convex ring

14‧‧‧First Swing

14a‧‧‧ Third parts

141‧‧‧ inner circumference

142‧‧‧ outer periphery

143‧‧‧ card ditch

144‧‧‧ chute

16‧‧‧Second sleeve

161‧‧‧Cylinder

162‧‧‧ disc section

162a‧‧‧First side wall

162b‧‧‧second side wall

18‧‧‧Second swivel

181‧‧‧Cylinder

181a‧‧‧4th machine

181b‧‧‧ chute

P, M‧‧‧ bumps

Q‧‧‧Perforation

R‧‧‧ card slot

Claims (10)

A lens mechanism includes: a first sleeve, one end of the first sleeve forms a convex ring portion, and the convex ring portion is formed with at least one first convex block; a first rotating ring is sleeved on the first a sleeve is rotated relative to the first sleeve, a groove is formed at one end of the first rotating ring, and a second protrusion is formed in the card groove; a second sleeve is oppositely engaged with the first sleeve And having at least one perforation and a rib structure, the rib structure is formed along a circumference of the second sleeve, and the vacancy on the circumference where the rib structure is not formed constitutes a groove, wherein the first revolving ring The rib is engaged with the rib structure such that the second protrusion in the groove interferes with the groove, and both ends of the groove block the second protrusion to limit the rotation of the first slewing ring Rotating in a range; and a second rotating ring sleeved on the second sleeve for rotating relative to the second sleeve, the second rotating ring having a cylinder and a card slot connecting the cylinder, wherein the second The first protrusion of a sleeve passes through the through hole of the second sleeve and opposes the card slot, and both ends of the card slot block the first protrusion to limit In a second swivel rotatable within a rotation range. The lens mechanism of claim 1, wherein the first rotating ring is a hollow cylinder and has an inner circumference and an outer circumference, the card groove is annular and located at the inner circumference and the outer circumference. Between the edges. The lens mechanism of claim 1, wherein the second sleeve comprises a cylinder and a disc portion connected to one end of the cylinder, the outer diameter of the disc portion being larger than the outer diameter of the cylinder The disk portion has a first sidewall and a second sidewall. The first sidewall is connected to the cylinder and the second sidewall has an annular shape. The through hole is formed on the first sidewall, and the rib structure is formed. In the second side wall, the card slot extends from a side wall of the barrel of the second swivel and is adjacent to the first side wall of the disc portion. A lens mechanism comprising: a first sleeve includes a cylinder and at least one first protrusion connecting the barrel; a first rotating ring is sleeved on the first sleeve to rotate relative to the first sleeve, the first rotation One end of the ring is integrally formed with at least one second protrusion; a second sleeve is oppositely engaged with the first sleeve and one end of the second sleeve is formed with a groove, wherein the second of the first rotating ring The bump slides in the groove and is limited to the groove to restrict the first rotating ring from rotating within a rotation range; and a second rotating ring is sleeved on the second sleeve to face the second The sleeve rotates, the second rotating ring has a cylinder and a slot for connecting the cylinder, wherein the first protrusion of the first sleeve slides in the slot and is limited to the slot The second rotating ring is restricted from rotating within a range of rotation. A lens mechanism includes: a sleeve assembly, a sleeve body, a first mechanism and a second mechanism, the first mechanism is provided with a first contact point and a second contact point, and the second The mechanical component is provided with a first contact point and a second contact point; a first rotating ring, one end of the first rotating ring is provided with a third mechanical component, and the third mechanical component is provided with a first contact point and a second contact point Pointing, the third mechanism moves between the first contact point of the first member and the second contact point of the first member, when the first contact point of the third member is against the first When the first contact point of a mechanical component is moved, the third mechanical component can no longer move in the same direction, and when the second contact point of the third mechanical component abuts the second contact of the first mechanical component When the point is made, the third mechanism can no longer move in the same direction; and a second rotating ring is provided with a fourth mechanism, the fourth mechanism is provided with a first contact point and a second contact point, Moving the second member between the first contact point of the fourth member and the second contact point of the fourth member, when the first contact of the second member When the first contact point of the fourth mechanism is pressed, the second mechanism can no longer move in the same direction, and when the second contact point of the second mechanism is pressed against the fourth mechanism When the second touch point is The second mechanism is no longer movable in the same direction; wherein at least one of the connecting portion of the first member and the sleeve assembly and the connecting portion of the third member and the first rotating ring The unit is integrally formed, and at least one of the connecting portion of the second member and the sleeve assembly and the connecting portion of the fourth member and the second rotating ring are integrally formed. The lens mechanism of claim 5, wherein the first mechanical component and the third mechanical component have a corresponding snap design. The lens mechanism of claim 6, wherein the first member is a groove, and the third member is a bump. The lens mechanism of claim 5, further comprising: a first barrel region and a second barrel region, wherein the first barrel region is provided with at least one lens and a first coupling member, The first rotating ring is provided with a second connecting motive member, and the first connecting robot member and the second connecting robot member are mutually correspondingly designed, and the second barrel portion is provided with at least one lens and a third connecting rod The second rotating ring is provided with a fourth connecting member, and the third connecting member and the fourth connecting member are interlocked with each other. The lens mechanism of claim 8, wherein the first linking member and the third linking member are both convex, and the second linking member and the fourth linking member are both barrels provided with a chute body. The lens mechanism of claim 1, wherein the first rotating ring is rotated to perform a focusing operation during image capturing, and the second rotating ring is rotated to perform a zooming operation during image capturing.