JP2008090290A - Lens barrel and camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens barrel that securely improves the adhesive strength between a lens coupling portion where a lens is fixed with an adhesive and the lens, and a camera equipped with the same. <P>SOLUTION: A plurality of lens coupling portions 21 is arranged (in multiple equal arrangement) to be equally distributed along the periphery (internal wall) of a lens barrel structure 2. The lens 11 and lens coupling portions 21 are mutually bonded and fixed across adhesion portions 29 made of adhesives. Each of the lens coupling portions 21 has a first adhesion portion 25a and a second adhesion portion 26a. A position restriction portion 27 which auxiliarily define the lens position are formed around the lens coupling portion 21. The first adhesion portion 25a is bonded to the lens 11 with an adhesive (adhesion portion 29) charged in a first gap Gp1 and the second adhesion portion 26a is bonded to the lens 11 with an adhesive (adhesion portion 29) charged in a second gap Gp2 larger than the first gap Gp1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lens barrel in which a lens is fixed to a lens barrel structure with an adhesive and a camera including such a lens barrel.

  With the downsizing of cameras, a lens barrel in which a lens is fixed to a lens barrel structure (lens holder) with an adhesive is applied to a camera barrel or the like. In order to improve the optical characteristics and improve the reliability, it is important for the lens barrel to prevent the tilt between the lens barrel structure and the lens and to improve the fixing strength.

  FIG. 28 is a plan view showing a plane of a lens barrel according to a conventional example.

  The lens barrel 101 has a configuration in which a lens (not shown) is bonded with an adhesive (not shown) (see, for example, Patent Document 1). The lens barrel 101 includes a fitting-type lens structure 102 having a concavo-convex structure, and has a groove 103 as a concave structure. The lens is fitted in the groove portion 103 and bonded with an adhesive applied to the bonding portions 104 arranged at the four corners.

Since the adhesive that protrudes from the adhesive portion 104 is accommodated in the groove portion 103, it prevents the adhesive from moving to the lens barrel inner wall 105 by moving in the lens radial direction. The concavo-convex structure has various structures such as a columnar shape and a split annular shape, and any of them has a form in which an excessive portion of the adhesive to the gap portion (groove portion 103) flows into this.
Japanese Utility Model Publication No. 4-3409

  When fixing a lens to a lens barrel structure with an adhesive, a small-diameter lens tends to have a smaller area to which the adhesive is applied, resulting in lower impact resistance and lower adhesive strength.

  In addition, when assembling a camera module (lens barrel), there is a method in which an adhesive is sandwiched between the lens and the lens barrel structure, and the adhesive is trapped to eliminate dust generation factors. However, there is a problem that the reduction of the adhesive strength is further increased.

  Furthermore, in a structure in which an adhesive is sandwiched between the lens and the lens barrel structure, the lens is in contact (adhesion) with the lens barrel structure only through the adhesive that contacts the lens, so that it is perpendicular to the contact portion. When a force in the direction of removing the lens is applied, there is a problem that the adhesive strength is weakened as much as the adhesive surface is limited. In addition, even when the adhesive is not completely uniform, there is a problem in that peeling easily occurs from a non-uniform portion of the adhesive strength.

  The present invention has been made in view of such a situation, and by configuring the lens coupling portion for fixing the lens with an adhesive by the first adhesive portion and the second adhesive portion having a step with the first adhesive portion, It is an object of the present invention to provide a lens barrel that optimizes the distribution (thickness and area) of the adhesive between the lens and the lens coupling portion to reliably improve the adhesive strength.

  In addition, the present invention provides a camera having a high impact resistance and a high reliability by including a lens barrel having a highly reliable adhesive strength by using the lens barrel according to the present invention. To do other purposes.

  The lens barrel according to the present invention is a lens barrel provided with a lens coupling portion that fixes a lens with an adhesive in a barrel structure, and the lens coupling portion adheres the lens at a first gap. An adhesive portion and a second adhesive portion that adjoins the first adhesive portion and adheres the lens at a second gap larger than the first gap are provided.

  With this configuration, when the lens is bonded to the lens coupling portion, it becomes possible to supply the excess adhesive applied to the first bonding portion to the second bonding portion, and the bonding between the first bonding portion and the lens. Since the thickness of the agent is different from the thickness of the adhesive between the second adhesive portion and the lens, and the fillet action at the step (the skirting action on the surface in the step portion) is generated, the lens and Optimizing the distribution (thickness and area) of the adhesive between the lens coupling part and the lens and the lens coupling part can be bonded, so even if the area of the lens coupling part is limited, the adhesive strength can be increased. It becomes possible to improve it reliably.

  In the lens barrel according to the present invention, the first adhesive portion and the second adhesive portion are arranged in a circumferential direction of the lens barrel structure.

  With this configuration, the first adhesive portion and the second adhesive portion can be easily formed, and the adhesive can be supplied by moving the adhesive from the first adhesive portion to the second adhesive portion in the circumferential direction of the lens barrel structure. The adhesive strength can be ensured even when the adhesive region in the circumferential direction is limited, and the protrusion of the adhesive in the radial direction of the lens from the first adhesive portion can be suppressed, and the effective lens diameter Can be easily secured.

  In the lens barrel according to the present invention, the second adhesive portion is disposed symmetrically on both sides of the first adhesive portion.

  With this configuration, since the movement and supply of the adhesive from the first adhesive portion to the second adhesive portion can be made uniform on both sides of the first adhesive portion, the adhesive strength can be improved and equalized.

  In the lens barrel according to the present invention, the first adhesive portion and the second adhesive portion are repeatedly arranged in two or more sets along the circumference of the lens barrel structure.

  With this configuration, it becomes possible to equalize the movement of the adhesive for the entire circumference of the lens barrel structure, and the adhesive strength can be improved according to the number of repetitions without changing the dimension in the radial direction. Since it becomes possible, it becomes possible to equalize the fillet action for the entire circumference and improve the adhesive strength.

  In the lens barrel according to the present invention, a radial end portion of the first adhesive portion extends from a radial end portion of the second adhesive portion toward the center side of the barrel structure. And

  With this configuration, the adhesive can be supplied from the first adhesive portion to the second adhesive portion in the circumferential direction of the lens barrel structure, and the adhesive can be supplied from the first adhesive portion to the second adhesive portion in the radial direction of the lens. Therefore, it is possible to further improve the adhesive strength by expanding the fillet action by the stretched portion.

  In the lens barrel according to the present invention, the first adhesive portion and the second adhesive portion are arranged in a radial direction of the lens barrel structure.

  With this configuration, since the adhesive is supplied from the first adhesive portion to the second adhesive portion in the radial direction of the lens, it is possible to suppress the protrusion of the adhesive in the radial direction of the lens from the first adhesive portion, It is possible to ensure an effective lens diameter. In addition, since the adhesive is filled in the radial direction, it is possible to suppress deformation of the lens barrel structure in the radial direction.

  In the lens barrel according to the present invention, the second adhesive portion is arranged closer to the center of the lens barrel structure than the first adhesive portion.

  With this configuration, the first adhesive portion and the second adhesive portion can be easily formed.

  Moreover, in the lens barrel according to the present invention, the second adhesive portion is arranged in a region of the first adhesive portion.

  With this configuration, excess adhesive applied to the first adhesive portion can be accommodated in the second adhesive portion, so that the adhesive does not protrude from the periphery of the lens coupling portion, and the adhesion region of the lens coupling portion cannot be expanded. However, it is possible to ensure the adhesive strength and to reliably suppress the spread of the adhesive. That is, the area of the lens coupling portion can be reduced while maintaining the adhesive strength.

  In the lens barrel according to the present invention, a plurality of the lens coupling portions are equally arranged along a circumference of the barrel structure.

  With this configuration, the lens can be evenly bonded to the lens coupling portion with a good balance, and the lens barrel has excellent optical characteristics.

  In the lens barrel according to the present invention, the lens barrel structure is connected to the first adhesive portion and the second adhesive portion and is larger than the first gap between the lens and the second gap. An auxiliary structure having an auxiliary gap is provided.

  With this configuration, the auxiliary structure portion prevents the adhesive overflowing from the first adhesive portion to the second adhesive portion from further overflowing in the radial direction (center direction) of the lens, and no adhesive is required in the radial direction of the lens. Therefore, the adhesion force to the lens can be further increased by the fillet effect between the auxiliary structure portion and the lens.

  Further, in the lens barrel according to the present invention, the auxiliary structure portion is arranged on the center side in the radial direction of the lens with respect to the first adhesive portion and the second adhesive portion.

  With this configuration, the auxiliary structure portion efficiently guides the adhesive overflowing from the first adhesive portion to the second adhesive portion and suppresses the flow of unnecessary adhesive in the radial direction of the lens. The adhesive force of the lens barrel structure (lens coupling portion) can be further increased.

  In the lens barrel according to the present invention, the second adhesive portions are arranged adjacent to each other, and the lens barrel structure is larger than the first gap between the second gap and the lens. An auxiliary structure portion having a smaller auxiliary gap is provided between the adjacent second adhesive portions.

  With this configuration, the area of the first adhesive portion and the second adhesive portion is largely arranged in the circumferential direction, and even when the adhesive overflows from the second adhesive portion, the overflowing adhesive is placed between the lens and the auxiliary structure portion. Thus, unnecessary flow of the adhesive in the radial direction of the lens can be suppressed, and the adhesive force of the lens barrel structure (lens coupling portion) to the lens can be further increased.

  In the lens barrel according to the present invention, the lens barrel structure is connected to the second adhesive portion on the center side of the lens barrel structure and is larger than the first gap between the second lens and the lens. An auxiliary structure having an auxiliary gap smaller than the gap is provided.

  With this configuration, even when the adhesive overflows from the second adhesive portion in the radial direction of the lens, the overflowed adhesive is guided between the lens and the auxiliary structure portion, so that no adhesive is required in the radial direction of the lens. In addition, the adhesive force of the lens barrel structure (lens coupling portion) to the lens can be further increased.

  The camera according to the present invention is a camera including a lens barrel having a lens fixed thereto, and the lens barrel is the lens barrel according to the present invention.

  With this configuration, a camera including a lens barrel having a highly reliable adhesive strength can be obtained, and the camera has high impact resistance and high reliability.

  According to the lens barrel of the present invention, the first adhesive part that adheres the lens in the first gap, and the second adhesive part that adheres the lens in the second gap that is adjacent to the first adhesive part and is larger than the first gap. Since the lens is bonded at the lens coupling part, the adhesive distribution is optimized and the lens and the lens coupling part are adhered to each other, so that even when the area of the lens coupling part is limited, the adhesive strength is reliably improved. There is an effect that it becomes possible.

  Further, according to the lens barrel according to the present invention, since the first adhesive portion and the second adhesive portion are arranged in the circumferential direction of the barrel structure, even when the adhesive region in the circumferential direction is limited. The effect is that the adhesive strength is ensured and the effective diameter of the lens can be easily secured by suppressing the protrusion of the adhesive in the radial direction of the lens. In addition, since the second adhesive portion is arranged symmetrically on both sides of the first adhesive portion, it is possible to equalize the movement and supply of the adhesive on both sides of the first adhesive portion, improving the adhesive strength and equalizing. It has the effect of becoming.

  In addition, according to the lens barrel according to the present invention, the first adhesive portion and the second adhesive portion are repeatedly arranged in two or more sets along the circumference of the lens barrel structure. Accordingly, it is possible to improve the adhesive strength, and it is possible to equalize the fillet action for the entire circumference and improve the adhesive strength.

  Further, according to the lens barrel according to the present invention, the radial end portion of the first adhesive portion extends from the radial end portion of the second adhesive portion toward the center of the lens barrel structure. There is an effect that it is possible to further improve the adhesive strength by expanding the fillet action by the portion.

  Further, according to the lens barrel according to the present invention, since the first adhesive portion and the second adhesive portion are arranged in the radial direction of the lens barrel structure, the adhesive protrudes in the radial direction of the lens. This produces an effect of suppressing the lens effective diameter. In addition, since the second adhesive portion is disposed closer to the center of the lens barrel structure than the first adhesive portion, the first adhesive portion and the second adhesive portion can be easily formed.

  Further, according to the lens barrel according to the present invention, since the second adhesive portion is disposed in the region of the first adhesive portion, the adhesive strength is ensured even when the adhesive region of the lens coupling portion cannot be expanded. At the same time, the spread of the adhesive can be reliably suppressed, so that the area of the lens coupling portion can be reduced while maintaining the adhesive strength.

  In addition, according to the lens barrel according to the present invention, since a plurality of lens coupling portions are arranged along the circumference of the barrel structure, the lenses are evenly bonded to the lens coupling portion in a balanced manner, There is an effect that it becomes possible to provide a lens barrel having excellent optical characteristics.

  According to the lens barrel of the present invention, the lens barrel structure is connected to the first adhesive portion or the second adhesive portion and has an auxiliary gap that is larger than the first gap and smaller than the second gap between the lens barrel structure and the lens. Since the auxiliary structure portion is provided, the adhesive overflowing from the first adhesive portion to the second adhesive portion is further prevented from overflowing in the radial direction (center direction) of the lens, and no adhesive is required in the radial direction of the lens. The flow can be suppressed, and the adhesion force to the lens can be further increased by the fillet effect between the auxiliary structure portion and the lens.

  According to the camera according to the present invention, since the lens barrel according to the present invention is provided, there is an effect that it is possible to provide a camera having high impact resistance and high reliability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a cross-sectional view showing a schematic cross-section on a plane including the optical axis of the lens barrel according to Embodiment 1 of the present invention. FIG. 1 schematically shows a basic configuration of the lens barrel 1, and the same applies to other embodiments.

  A lens barrel 1 according to the present embodiment includes a barrel structure 2 and a lens 11 and a lens 12 held by the barrel structure 2. The lens 11 is a terminal lens attached to, for example, the terminal end of the lens barrel structure 2, and the lens 12 is an intermediate lens attached to, for example, an intermediate part of the lens barrel structure 2. That is, the lens 11 is attached to the lens coupling portion 21 provided at the end portion of the lens barrel structure 2, and the lens 12 is attached to the lens coupling portion 22 provided in the middle portion of the lens barrel structure 2. The lens 11 and the lens 12 are fixed in alignment with the center (optical axis Lax) of the barrel structure 2.

  The lens 11 and the lens 12 are generally attached and fixed with an adhesive. There are two methods for attaching the lens at this time: a case where the lens is attached to a predetermined place after the adhesive is applied to the lens, and a case where the adhesive is applied after the lens is attached. When the adhesive is applied after the lens is mounted, defective application of the adhesive tends to occur, and there is a problem of dust generation from the defective application part of the adhesive. On the other hand, in the case where the lens is mounted after the adhesive is applied to the lens, there is no problem of defective application and accompanying dust generation.

  Further, since the lens coupling portion 22 provided in the intermediate portion of the lens barrel structure 2 has a concave shape with respect to the inner wall of the lens barrel structure 2, it is easy to structurally fix and hold the lens 12. The adhesive strength required for the adhesive is not large. On the other hand, since the lens coupling portion 21 provided at the end portion of the lens barrel structure 2 has a convex shape with respect to the inner wall of the lens barrel structure 2, the lens 11 is structurally fixed. It is difficult to hold, and the adhesive strength required for the adhesive becomes large.

  This embodiment makes it possible to improve the adhesive strength required for the adhesive, and has a great effect when the lens 11 is fixed to the lens coupling portion 21 by applying the adhesive. is there. In addition, although the case where it applies to the lens coupling | bond part 21 in the terminal part of the lens-barrel structure 2 is demonstrated to an example, it is not restricted to this, For example, it is also possible to apply to the lens coupling | bond part 22 in an intermediate part. is there.

  Moreover, although the lens coupling | bond part 21 shows the case where it forms in the inner wall of the lens-barrel structure 2, it is also possible to arrange | position to the end surface 2t of the lens-barrel structure 2 in the arrow Z direction.

  FIG. 2 is a plan view showing the lens barrel viewed from the arrow Z direction in FIG. FIG. 3 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows AA (circumferential direction of the lens coupling portion) in FIG. 2. FIG. 4 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows BB (radial direction of the position defining portion) in FIG. 2. FIG. 5 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows CC in FIG. 2 (radial direction of the second bonding portion). FIG. 6 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows DD (radial direction of the first adhesive portion) in FIG. 2.

  In FIG. 2, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown. Further, in FIGS. 4 to 6, the circumferential direction of the lens barrel structure 2 is virtually corrected in a linear direction.

  The lens coupling portions 21 are arranged (multiple equally arranged) so as to be uniformly distributed along the circumference (inner wall) of the lens barrel structure 2. FIG. 2 shows a case where the lens coupling portions 21 are set (three equally spaced) at, for example, three locations. Further, the lens 11 and the lens coupling portion 21 are bonded and fixed to each other via an adhesive portion 29 made of an adhesive. With this configuration, the lens 11 can be evenly bonded to the lens coupling portion 21 with good balance, and the lens barrel 1 having excellent optical characteristics is obtained.

  The lens coupling portion 21 includes a first adhesive portion 25a and a second adhesive portion 26a. Further, a position defining portion 27 that supplementarily defines the lens position is formed around the lens coupling portion 21.

  A step (difference between the first gap Gp1 and the second gap Gp2) is formed between the first adhesive portion 25a and the second adhesive portion 26a. That is, the first adhesive portion 25a is adhered to the lens 11 with the adhesive (adhesive portion 29) filled in the first gap Gp1, and the second adhesive portion 26a is filled in the second gap Gp2 that is larger than the first gap Gp1. The lens 11 is bonded with an adhesive (bonding portion 29).

  By providing a step between the first adhesive part 25a and the second adhesive part 26a, when the lens 11 is adhered to the lens coupling part 21, excess adhesive applied to the first adhesive part 25a is removed from the second adhesive part. It becomes possible to push and supply to 26a. Accordingly, the thickness of the adhesive filled in the first gap Gp1 and the thickness of the adhesive filled in the second gap Gp2 are made different and the fillet action at the step (the skirting action on the surface in the step portion). Therefore, the distribution (thickness and area) of the adhesive (adhesive portion 29) between the lens 11 and the lens coupling portion 21 can be optimized to bond the lens 11 and the lens coupling portion 21. Thus, even when the area of the lens coupling portion 21 is limited, the adhesive strength can be reliably improved.

  A step is also formed between the second adhesive portion 26 a and the position defining portion 27. That is, the position defining portion 27 is separated from the lens 11 by a third gap Gp3 that is larger than the second gap Gp2. Although it is possible to integrate the position defining portion 27 with the second adhesive portion 26a, it is possible to reduce the amount of adhesive used by minimizing the range of the adhesive portion 29, the position defining portion 27 (and the lens coupling). For the purpose of suppressing or eliminating the influence on the adhesive (adhesive part 29) due to thermal deformation of the part 21), the position defining part 27 is configured not to form the adhesive part 29.

  Therefore, the position defining part 27 does not directly participate in the adhesion between the lens 11 and the lens coupling part 21, but supports the lens coupling part 21 and the positioning accuracy of the lens 11 in the lens barrel structure 2 and the lens coupling. It has a role of improving the mechanical strength of the portion 21.

  The first adhesive portion 25a and the second adhesive portion 26a are disposed adjacent to each other in the circumferential direction of the lens barrel structure 2. With this configuration, the first bonding portion 25a and the second bonding portion 26a can be easily formed, and the adhesive constituting the bonding portion 29 is transferred from the first bonding portion 25a to the second bonding portion 26a. Therefore, even when the bonding region (region of the lens coupling portion 21) in the circumferential direction is limited, it is possible to ensure the bonding strength, and the first bonding portion 25a. Therefore, it is possible to suppress the protrusion of the adhesive in the radial direction of the lens 11, so that the effective lens diameter can be easily secured.

  Further, in the circumferential direction of the lens barrel structure 2, the second adhesive portions 26a and 26a are disposed symmetrically adjacent to both sides of the first adhesive portion 25a. With this configuration, it is possible to equalize the movement of the adhesive from the first adhesive portion 25a to the second adhesive portion 26a on both sides of the first adhesive portion 25a, and to maintain and equalize the adhesive strength. Become.

  The level difference between the first adhesive portion 25a and the second adhesive portion 26a is, for example, about several tens of μm, and can be set as appropriate according to the viscosity of the adhesive. For example, when the trade name U1542 (made by Chemtech), which is a UV curable adhesive, is used as the adhesive, the step is appropriately about 20 μm.

  For example, when the diameter of the lens 11 is 8 mm (effective diameter is 6.8 mm, the adhesive protrusion error in the lens radial direction is 0.1 mm), the lens coupling portion 21 (the first bonding portion 25a and the second bonding portion 26a). The effective diameter of the lens can be secured by forming the diameter smaller than 8 mm and larger than 7 mm.

  The area ratio of the first adhesive portion 25a to the lens coupling portion 21 is 50%. Therefore, the area ratio of the second adhesive portion 26a to the lens coupling portion 21 is 25% × 2 (= 50%).

  Next, the adhesion state of the adhesive to the lens 11 will be described (see FIG. 3). The adhesive applied to the first bonding portion 25a is filled between the lens 11 and the first bonding portion 25a (first gap Gp1) to bond the lens 11 and the first bonding portion 25a. The adhesive is also filled between the second adhesive portion 26a adjacent to the lens 11 (second gap Gp2) that is pushed out from the first gap Gp1.

  Usually, since the surface on the lens 11 side is smoother than the surface of the lens barrel structure 2 (lens coupling portion 21), the adhesive (adhesion portion 29) spreads on the lens 11 side, and the lens 11 side It ends in the space (second gap Gp2) between the second adhesive portion 26a and the lens 11 in such a way that the skirt is drawn. This skirting effect (fillet action) can further improve the adhesive strength between the lens 11 and the lens coupling portion 21.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 7 is a plan view showing the lens barrel according to the second embodiment of the present invention as a planar state viewed from the direction of the arrow Z in FIG. FIG. 8 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows BB (radial direction of the position defining portion) in FIG. 7. FIG. 9 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows CC (in the radial direction of the second adhesive portion) in FIG. 7. FIG. 10 is an enlarged cross-sectional view showing an enlarged cross section taken along arrow DD (radial direction of the first adhesive portion) in FIG. 7.

  In FIG. 7, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown. Moreover, in FIG. 8 thru | or 10, it has shown as the state which virtually corrected the circumferential direction of the lens-barrel structure 2 to the linear direction. A cross section taken along the arrow AA (circumferential direction of the lens coupling portion) in FIG. 7 is represented in the same manner as in FIG.

  Since the lens barrel 1 according to the present embodiment is obtained by changing the first adhesive portion 25a described in the first embodiment to be the first adhesive portion 25b, the first adhesive portion 25b is mainly the first adhesive portion 25b. A different point from the 1 adhesion part 25a is demonstrated.

  The radial end portion 25bt of the first bonding portion 25b extends from the radial end portion 26at of the second bonding portion 26 toward the center side of the lens barrel structure 2. With this configuration, the adhesive is supplied from the first adhesive portion 25b to the second adhesive portion 26a in the circumferential direction of the lens barrel structure 2 as in the first embodiment, and the first adhesive portion in the radial direction of the lens 11 is provided. Since the adhesive can be supplied from 25b toward the radial end portion 26at of the second adhesive portion 26a, it is possible to further increase the adhesive strength by expanding the fillet action by the stretched portion.

  That is, the adhesive supplied from the first adhesive portion 25b toward the radial end portion 26at of the second adhesive portion 26a is bonded to the side surface between the distal end side portion 25bs of the first adhesive portion 25b and the radial end portion 26at. The portion 29s will be formed.

  Therefore, in addition to the enlargement of the adhesion portion 29 in the circumferential direction, the adhesion portion 29 in the radial direction is expanded to the side surface adhesion portion 29s, and the adhesion strength in the radial direction can be increased. Note that the side surface adhesive portion 29s has a shape that is skirted toward the lens 11 as in the first embodiment, and has an adhesive strength between the distal end side portion 25bs of the first adhesive portion 25b and the radial end portion 26at. Will be secured.

  That is, this embodiment can further improve the adhesive strength as compared with the first embodiment.

<Embodiment 3>
A third embodiment of the present invention will be described with reference to FIGS.

  FIG. 11 is a plan view showing the lens barrel according to the third embodiment of the present invention as a planar state viewed from the direction of the arrow Z in FIG. FIG. 12 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows AA (circumferential direction of the lens coupling portion) in FIG. 11. FIG. 13 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows BB (radial direction of the position defining portion) in FIG. 11. FIG. 14 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows CC (radial direction of the lens coupling portion) in FIG. 11.

  In FIG. 11, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown. Further, in FIGS. 13 and 14, the circumferential direction of the barrel structure 2 is virtually corrected in the linear direction.

  In the lens barrel 1 according to the present embodiment, the first adhesive portions 25a and 25b described in the first and second embodiments are changed to be the first adhesive portions 25c, and the second adhesive portions 26a are changed. Since the second adhesive part 26c is changed, the first adhesive part 25c is mainly different from the first adhesive part 25a and the first adhesive part 25b, and the second adhesive part 26c is the second adhesive part. Differences from 26a will be described.

  The first adhesive portion 25c and the second adhesive portion 26c are arranged adjacent to each other in the radial direction of the lens barrel structure 2. With this configuration, it is possible to supply the adhesive from the first adhesive portion 25c to the second adhesive portion 26c in the radial direction of the lens 11. Therefore, it is possible to further improve the adhesive strength by filling the second gap Gp2 with an adhesive to expand the fillet action.

  Further, since the adhesive is filled in the second gap Gp2, it is possible to suppress the adhesive from protruding in the radial direction of the lens 11, and it is possible to ensure the effective lens diameter. Furthermore, since the adhesive is filled in the radial direction, it is possible to suppress deformation of the lens barrel structure 2 in the radial direction.

  Moreover, since the 2nd adhesion part 26c is arrange | positioned in the center side of the lens-barrel structure 2 from the 1st adhesion part 25c, it is possible to form the 1st adhesion part 25c and the 2nd adhesion part 26c easily. It becomes.

  In addition, about 20 micrometers is suitable for the level | step difference of the 1st adhesion part 25a and the 2nd adhesion part 26a on the conditions similar to Embodiment 1. FIG.

  For example, when the diameter of the lens 11 is 8 mm (effective diameter 6.5 mm), the diameter of the first adhesive portion 25c is smaller than 8 mm and larger than 7 mm, and the diameter of the second adhesive portion 26c is 7 mm. The lens effective diameter can be ensured by forming it in a smaller range than 6.5 mm.

  In addition, since the skirting effect (fillet action) also occurs in the same manner as in the first and second embodiments, the adhesive strength between the lens 11 and the lens coupling portion 21 can be further improved.

<Embodiment 4>
A fourth embodiment of the present invention will be described with reference to FIGS.

  FIG. 15 is a plan view showing a lens barrel according to Embodiment 4 of the present invention as a planar state viewed from the direction of the arrow Z in FIG. FIG. 16 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows AA (circumferential direction of the lens coupling portion) in FIG. 15. FIG. 17 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows BB (radial direction of the position defining portion) in FIG. 15. FIG. 18 is an enlarged cross-sectional view showing an enlarged cross section taken along the arrow CC (radial direction of the lens coupling portion) in FIG. 15.

  In FIG. 15, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown. In FIGS. 17 and 18, the circumferential direction of the lens barrel structure 2 is virtually corrected in a linear direction.

  In the lens barrel 1 according to the present embodiment, the first bonding portions 25a, 25b, and 25c described in the first to third embodiments are changed to be the first bonding portions 25d, and the second bonding portions are used. 26a and 26c are changed to be the second adhesive portion 26d. Therefore, the first adhesive portion 25d is mainly different from the first adhesive portions 25a, 25b, and 25c, and the second adhesive portion 26d is the second adhesive portion 26d. A different point from the adhesion parts 26a and 26c is demonstrated.

  The first adhesive portion 25d is configured to define the peripheral shape of the lens coupling portion 21 as it is. The second adhesive portion 26d is disposed in the region of the first adhesive portion 25d. Therefore, it is effective when it is desired to limit the contact (adhesion region) of the lens 11 corresponding to the lens coupling part 21 to the first adhesion part 25d.

  With this configuration, it is possible to supply excess adhesive to the second adhesive portion 26d disposed inside the region of the first adhesive portion 25d. That is, even when the region of the lens coupling portion cannot be expanded, the adhesive strength can be further improved by filling the second gap Gp2 with an adhesive to expand the fillet action, and the lens coupling portion is maintained in a state where the adhesive strength is maintained. It is possible to reduce the area. Further, it is possible to suppress the adhesive from protruding around the lens coupling portion 21 (both in the radial direction and in the circumferential direction), and it is possible to ensure the effective lens diameter.

  In addition, about 20 micrometers is suitable for the level | step difference of the 1st adhesion part 25a and the 2nd adhesion part 26a on the conditions similar to Embodiment 1. FIG.

<Embodiment 5>
FIG. 19 is a plan view showing a lens barrel according to Embodiment 5 of the present invention in a planar state as viewed from the direction of arrow Z in FIG. In FIG. 19, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown.

  In the lens barrel 1 according to the present embodiment, the first adhesive portion 25a described in the first embodiment is changed to a first adhesive portion 25e, and the second adhesive portion 26a is changed to a second adhesive portion. 26e, the difference between the first adhesive portion 25e and the first adhesive portion 25a and the difference between the second adhesive portion 26e and the second adhesive portion 26a will be mainly described.

  Two or more sets of the first adhesive portion 25e and the second adhesive portion 26e constituting the lens coupling portion 21 are repeatedly arranged. That is, the lens coupling portion 21 includes the first adhesive portion 25e and the second adhesive portion 26e that are repeatedly arranged in the order of the first adhesive portion 25e → the second adhesive portion 26e → the first adhesive portion 25e → the second adhesive portion 26e. Is provided.

  The first adhesive portion 25e has the same basic configuration as the first adhesive portion 25a, and the second adhesive portion 26e has the same basic configuration as the second adhesive portion 26a. That is, it is different in that two or more sets are simply repeatedly arranged, and other basic shapes (for example, a cross section) are the same as those in the first embodiment.

  With this configuration, it is possible to equalize the movement of the adhesive on the entire circumference of the lens barrel structure 2, and improve the adhesive strength according to the number of repetitions without changing the dimension in the radial direction. Therefore, it is possible to equalize the bottoming effect (fillet action) for the entire circumference and improve the adhesive strength. In addition, it is possible to reduce the diameter of the lens 11 (lens barrel structure 2) while maintaining the adhesive strength.

<Embodiment 6>
A sixth embodiment of the present invention will be described with reference to FIGS.

  FIG. 20 is a plan view showing the lens barrel according to Embodiment 6 of the present invention as a planar state viewed from the direction of the arrow Z in FIG. FIG. 21 is an enlarged cross-sectional view illustrating an enlarged cross section taken along arrows SS (circumferential direction of the lens coupling portion) in FIG. 20. FIG. 22 is an enlarged cross-sectional view showing an enlarged cross section taken along the arrow TT (radial direction of the first adhesive portion) in FIG. 20. FIG. 23 is an enlarged cross-sectional view showing an enlarged cross section taken along the arrow U-U (radial direction of the second adhesive portion) in FIG. 20.

  In FIG. 20, as in the first to fifth embodiments, the lens 11 and the bonding portion 29 are omitted, and the planar state of the lens coupling portion 21 is shown. Moreover, in FIG. 21 thru | or FIG. 23, it has shown as the state which virtually corrected the circumferential direction of the lens-barrel structure 2 to the linear direction.

  The basic structure of the lens coupling portion 21 according to the present embodiment is the same as that of the lens coupling portion 21 according to the first embodiment. That is, the first adhesive portion 25a and the second adhesive portion 26a are disposed adjacent to each other in the circumferential direction of the lens barrel structure 2.

  In addition, the lens barrel structure 2 according to the present embodiment is connected to the first adhesive portion 25a and the second adhesive portion 26a and is spaced from the lens 11 to be larger than the first gap Gp1 and smaller than the second gap Gp2. An auxiliary structure 31a having a gap Gpm) is provided. In FIG. 21, the surface of the auxiliary structure portion 31a facing the lens 11 is indicated by a two-dot chain line, and the auxiliary gap Gpm between the auxiliary structure portion 31a and the lens 11 is compared with the first gap Gp1 and the second gap Gp2. Shown as possible.

  That is, as shown in FIG. 21, in the auxiliary structure portion 31a, the distance between the auxiliary structure portion 31a and the lens 11 (auxiliary gap Gpm) is larger than the distance between the first adhesive portion 25a and the lens 11 (first gap Gp1). It is set to be larger than the distance between the second adhesive portion 26a and the lens 11 (second distance Gp2).

  Therefore, for example, when the step between the second bonding portion 26a and the first bonding portion 25a is set to 30 μm, the auxiliary structure portion 31a is set so that the step with the first bonding portion 25a is about 15 μm. Is done.

  With this configuration, the auxiliary structure portion 31a prevents the adhesive (adhesive portion 29) overflowing from the first adhesive portion 25a to the second adhesive portion 26a from further overflowing in the radial direction (center direction) of the lens 11, and the lens. 11 to suppress the unnecessary flow of the adhesive (adhesive portion 29) in the radial direction, the adhesion force to the lens 11 can be further increased by the fillet effect between the auxiliary structure portion 31a and the lens 11. it can.

  The auxiliary structure portion 31 a is connected to the first adhesive portion 25 a and the second adhesive portion 26 a and is arranged on the center side in the radial direction of the lens 11.

  With this configuration, the auxiliary structure portion 31a efficiently guides the adhesive overflowing from the first adhesive portion 25a to the second adhesive portion 26a, and removes unnecessary adhesive (adhesive portion 29) in the radial direction of the lens 11. Since the flow is suppressed, the adhesion force of the lens barrel structure 2 (lens coupling portion 21) to the lens 11 can be further increased.

  The auxiliary structure portion 31a is formed so as to have an arc-shaped end portion corresponding to the circumference of the lens 11 on the center side of the first adhesive portion 25a and the second adhesive portion 26a. When the lens 11 is fitted to the lens coupling portion 21, the arc-shaped auxiliary structure portion 31 a has a portion of the adhesive in the first adhesive portion 25 a and the second adhesive portion 26 a that protrudes within the effective diameter of the lens 11. It will act to prevent this efficiently.

  When the lens 11 and the adhesive touch each other, first, the adhesive flows from the adhesive portion 25a in both the radial direction and the circumferential direction of the lens 11. At this time, in the radial direction of the lens 11, there is an auxiliary structure portion 31 a having an auxiliary gap Gpm larger than the first gap Gp 1 with respect to the lens 11, so that the adhesive protruding in the radial direction is in the circumferential direction. The small gap (auxiliary gap Gpm) between the lens 11 and the auxiliary structure portion 31a can easily flow along the arranged auxiliary structure portion 31a in the circumferential direction (direction of the second bonding portion 26a).

  That is, not only the adhesive flowing from the first adhesive portion 25a in the circumferential direction (the direction of the second adhesive portion 26a) but also the adhesive flowing from the first adhesive portion 25a in the radial direction is arranged in the circumferential direction. As a result, it is possible to prevent the lens 11 from protruding into the radial direction, particularly into the effective diameter of the lens 11. Further, since the fillet effect by the auxiliary structure portion 31a and the second bonding portion 26a is also added, it is possible to further improve the adhesive force of the lens 11 to the lens coupling portion 21.

  In the present embodiment, the auxiliary structure portion 31a is installed on the center side of the lens 11 with respect to the entire circumferential direction of the first adhesive portion 25a and the second adhesive portion 26a. However, since the auxiliary structure portion 31a has a function of guiding the adhesive toward the second adhesive portion 26a, the formation range of the auxiliary structure portion 31a with respect to the second adhesive portion 26a is limited to the first adhesive portion 25a side. Thus, it is also possible to adopt a form of partial arrangement.

  The auxiliary structure part 31a can be formed integrally with the first adhesive part 25a and the second adhesive part 26a.

<Embodiment 7>
Based on FIG. 24 and FIG. 25, Embodiment 7 of this invention is demonstrated.

  FIG. 24 is a plan view showing a lens barrel according to Embodiment 7 of the present invention in a planar state as viewed from the direction of the arrow Z in FIG. FIG. 25 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows RR (circumferential direction between the lens coupling portions 21) in FIG.

  The basic structure of the lens coupling portion 21 according to the present embodiment is the same as that of the lens coupling portion 21 according to the first embodiment or the second embodiment. That is, the first adhesive portion 25a and the second adhesive portion 26a are disposed adjacent to each other in the circumferential direction of the lens barrel structure 2.

  In addition, it is desirable that the second adhesive portion 26a is disposed symmetrically on both sides of the first adhesive portion 25a. It is desirable that two or more sets of the first adhesive portion 25a and the second adhesive portion 26a are repeatedly arranged along the circumference of the lens barrel structure 2. The radial direction end of the first bonding portion 25a can extend toward the center of the lens barrel structure 2 from the radial direction end of the second bonding portion 26a.

  In the present embodiment, the second adhesive portions 26a are arranged next to each other. Further, the lens barrel structure 2 includes an auxiliary structure portion 32a having a gap (auxiliary gap Gpm) larger than the first gap Gp1 and smaller than the second gap Gp2 between the lens 11 and the adjacent second adhesive portion 26a. Prepare to connect.

  Therefore, for example, when the step between the second bonding portion 26a and the first bonding portion 25a is set to 30 μm, the auxiliary structure portion 32a is set so that the step with the first bonding portion 25a is about 15 μm. Is done.

  The auxiliary structure portion 32 a is formed so as to be connected to the position defining portion 27. As in the sixth embodiment, the auxiliary structure portion 32a can be formed integrally with the first adhesive portion 25a and the second adhesive portion 26a.

  As shown in FIG. 24, the auxiliary structure portion 32a in the present embodiment is particularly effective when it is necessary to design the first adhesive portion 25a and the second adhesive portion 26a widely in the circumferential direction. In other words, the presence of the auxiliary structure portion 32a makes it possible to prevent the adhesive overflowing from the second adhesive portions 26a facing each other from contacting each other.

  In addition, since the adhesive portion 29 can be formed between the auxiliary structure portion 32a and the lens 11 in a state where the adhesive overflowing from the second adhesive portion 26a is accommodated, the adhesive portion 29 toward the center of the lens 11 can be formed. The flow of the adhesive can be stopped.

  That is, even when both the first adhesive portion 25a and the second adhesive portion 26a have a large area, the adhesive overflowing from the second adhesive portion 26a facing each other comes into contact with each other, and the contact location is the base point. As a result, the risk of the adhesive flowing out into the effective diameter of the lens 11 can be avoided.

  Further, when the adhesive (adhesive portion 29) enters between the lens 11 and the auxiliary structure portion 32a, the fillet effect also acts strongly between the lens 11 and the auxiliary structure portion 32a. It becomes possible to further improve the adhesion of the lens 11 to the portion 21.

<Eighth embodiment>
The eighth embodiment of the present invention will be described with reference to FIGS.

  FIG. 26 is a plan view showing the lens barrel according to Embodiment 8 of the present invention as a planar state viewed from the direction of the arrow Z in FIG. FIG. 27 is an enlarged cross-sectional view showing an enlarged cross section taken along arrows V-V (radial direction of the first adhesive portion and the second adhesive portion) in FIG. 26.

  The basic structure of the lens coupling part 21 according to the present embodiment is the same as that of the lens coupling part 21 according to the third embodiment. That is, the first adhesive portion 25c and the second adhesive portion 26c are arranged in the radial direction of the lens barrel structure 2, and the second adhesive portion 26c is located on the center side of the lens barrel structure 2 with respect to the first adhesive portion 25c. It is arranged in.

  The lens barrel structure 2 according to the present embodiment is connected to the second adhesive portion 26c on the center side of the lens barrel structure 2 and is larger than the first gap Gp1 between the lens 11 and the second gap Gp2. An auxiliary structure portion 31c having an interval (auxiliary gap Gpm) is provided.

  Therefore, for example, when the step between the second bonding portion 26c and the first bonding portion 25c is set to 30 μm, the auxiliary structure portion 31c is set so that the step with the first bonding portion 25c is about 15 μm. Is done.

  Further, the auxiliary structure portion 31 c is formed so as to be connected to the position defining portion 27. As in the sixth embodiment and the seventh embodiment, the auxiliary structure portion 31c can be formed integrally with the first adhesive portion 25c and the second adhesive portion 26c.

  Since the auxiliary structure portion 31c in the present embodiment has a step that prevents the flow of the adhesive in the radial direction with respect to the second adhesive portion 26c, adhesion from the second adhesive portion 26c toward the center of the lens 11 is performed. It is possible to block the flow of the agent and to guide the flow of the adhesive in the circumferential direction. That is, the risk of the adhesive flowing out into the effective diameter of the lens 11 can be avoided.

  Further, when the adhesive (adhesive part 29) enters between the auxiliary structure part 31c and the lens 11 from the second adhesive part 26c, the fillet effect also acts between the lens 11 and the auxiliary structure part 31c. As a result, the adhesion of the lens 11 to the lens coupling portion 21 can be further improved.

<Embodiment 9>
A camera (not shown) according to the ninth embodiment of the present invention is configured to include the lens barrel 1 according to the first to eighth embodiments. That is, the lens barrel 1 in which the lens 11 is bonded and fixed to the barrel structure 2 with an adhesive has a highly reliable adhesive strength. It is possible to prevent such a situation, and the camera has high impact resistance and high reliability.

It is sectional drawing which shows the schematic cross section in the plane containing the optical axis of the lens-barrel which concerns on Embodiment 1 of this invention. It is a top view which shows the lens barrel seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow AA (circumferential direction of a lens coupling | bond part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow BB (radial direction of a position prescription | regulation part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow CC of FIG. 2 (radial direction of a 2nd adhesion part). It is an expanded sectional view which expands and shows the cross section in the arrow DD (radial direction of a 1st adhesion part) of FIG. It is a top view which shows the lens barrel which concerns on Embodiment 2 of this invention as a planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow BB (radial direction of a position prescription | regulation part) of FIG. It is an expanded sectional view which expands and shows the cross section in arrow CC of FIG. 7 (radial direction of a 2nd adhesion part). It is an expanded sectional view which expands and shows the cross section in the arrow DD (radial direction of a 1st adhesion part) of FIG. It is a top view which shows the lens barrel which concerns on Embodiment 3 of this invention as a planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in arrow AA (circumferential direction of a lens coupling | bond part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow BB (radial direction of a position prescription | regulation part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow CC of FIG. 11 (radial direction of a lens coupling | bond part). It is a top view which shows the lens barrel which concerns on Embodiment 4 of this invention as a planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in arrow AA (circumferential direction of a lens coupling | bond part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow BB (radial direction of a position prescription | regulation part) of FIG. It is an expanded sectional view which expands and shows the cross section in arrow CC of FIG. 15 (radial direction of a lens coupling | bond part). It is a top view which shows the lens barrel which concerns on Embodiment 5 of this invention as a planar state seen from the arrow Z direction of FIG. It is a top view which shows the lens barrel which concerns on Embodiment 6 of this invention as the planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow SS (circumferential direction of a lens coupling | bond part) of FIG. It is an expanded sectional view which expands and shows the cross section in arrow TT (radial direction of a 1st adhesion part) of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow U-U (radial direction of a 2nd adhesion part) of FIG. It is a top view which shows the lens barrel which concerns on Embodiment 7 of this invention as a planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow RR (circumferential direction between the lens coupling | bond parts 21) of FIG. It is a top view which shows the lens barrel which concerns on Embodiment 8 of this invention as a planar state seen from the arrow Z direction of FIG. It is an expanded sectional view which expands and shows the cross section in the arrow VV (radial direction of a 1st adhesion part and a 2nd adhesion part) of FIG. It is a top view which shows the plane of the lens-barrel which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lens barrel 2 Lens barrel structure 2t End surface 11, 12 Lens 21, 22 Lens coupling | bond part 25a, 25b, 25c, 25d, 25e 1st adhesion part 25bt Radial direction edge part 25bs Tip side part 26a, 26c, 26d, 26e 2nd adhesion part 26at Radial direction edge part 27 Position definition part 29 Adhesion part 31a, 31c, 32a Auxiliary structure part Gp1 1st gap | interval Gp2 2nd gap | interval Gp3 3rd gap | interval Gpm Auxiliary gap | interval Lax Optical axis

Claims (14)

A lens barrel provided with a lens coupling portion for fixing a lens with an adhesive in a barrel structure,
The lens coupling portion includes a first adhesive portion that adheres the lens at a first gap, and a second adhesive portion that adjoins the first adhesive portion and adheres the lens at a second gap that is larger than the first gap. A lens barrel characterized by comprising:   The lens barrel according to claim 1, wherein the first adhesive portion and the second adhesive portion are arranged in a circumferential direction of the barrel structure.   The lens barrel according to claim 2, wherein the second adhesive portion is disposed symmetrically on both sides of the first adhesive portion.   3. The lens barrel according to claim 2, wherein two or more sets of the first adhesive portion and the second adhesive portion are repeatedly arranged along a circumference of the barrel structure. 4.   3. The lens barrel according to claim 2, wherein a radial end portion of the first adhesive portion extends toward a center side of the barrel structure body from a radial end portion of the second adhesive portion. .   The lens barrel according to claim 1, wherein the first adhesive portion and the second adhesive portion are arranged in a radial direction of the barrel structure.   The lens barrel according to claim 6, wherein the second adhesive portion is disposed closer to the center of the lens barrel structure than the first adhesive portion.   The lens barrel according to claim 1, wherein the second adhesive portion is disposed in a region of the first adhesive portion.   The lens barrel according to any one of claims 1 to 8, wherein a plurality of the lens coupling portions are equally arranged along a circumference of the barrel structure.   The lens barrel structure includes an auxiliary structure portion that is connected to the first adhesive portion and the second adhesive portion and has an auxiliary gap that is larger than the first gap and smaller than the second gap between the lens and the lens. 6. The lens barrel according to claim 2, wherein the lens barrel is characterized in that:   11. The lens barrel according to claim 10, wherein the auxiliary structure portion is disposed on the center side in the radial direction of the lens with respect to the first adhesive portion and the second adhesive portion.   The second adhesive portions are arranged adjacent to each other, and the lens barrel structure has an auxiliary structure portion having an auxiliary gap larger than the first gap and smaller than the second gap between the lens structure and the lens. The lens barrel according to any one of claims 2 to 5, wherein the lens barrel is provided between the matching second adhesive portions.   The lens barrel structure includes an auxiliary structure portion connected to the second adhesive portion on the center side of the lens barrel structure and having an auxiliary gap larger than the first gap and smaller than the second gap between the lens barrel structure and the lens. The lens barrel according to claim 7, wherein the lens barrel is provided. A camera having a lens barrel with a fixed lens;
The camera according to claim 1, wherein the lens barrel is the lens barrel according to claim 1.

Images