JP2011070072A - Spacer for space adjustment, space adjustment structure, and camera module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spacer for space adjustment, which can be prevented from falling off or being deviated when an object is fixed to a post together with the spacer, and to provide a spacer adjustment structure and a camera module. <P>SOLUTION: The space adjustment structure includes: an object 11 where a through-hole 12 that a screw 15 penetrates is formed; the post 16 into which the screw 15 is inserted; and the spacer 1 for space adjustment, fixed together with the object 11 by the screw 15 and adjusting a space between the object 11 and the post 16, wherein the spacer 1 for space adjustment has a hole 2 that the screw 15 penetrates, and a recess 3 which has a larger diameter than that of the hole 2, and is fit to the tip of the post 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an interval adjusting spacer for adjusting an interval between an object and a post, an interval adjusting structure, and a camera module.

Conventionally, a washer-type spacer has been often used as an interval adjusting spacer for adjusting the interval between two members.
An example of an interval adjustment structure using this washer type spacer is shown in FIG. This is because the annular spacer 64 is inserted into the pin 61 provided at the tip of the post 62, the object 60 is inserted from above the spacer 64, and the tip of the pin 61 is fastened with a nut, The object 60 is fixed by soldering or bonding. The distance between the object 60 and the post 62 can be adjusted by adjusting the thickness of the spacer 64 or by interposing a plurality of spacers 64 in an overlapping manner.

  However, in this gap adjusting structure, when the pins 61 are manufactured by press-fitting into the posts 62, the pins 61 may be inclined with respect to the posts 62, and it is difficult to increase the manufacturing accuracy. In addition, when the pin 61 and the object 60 are fixed by soldering, the pin 61 may be inclined due to the application of heat, which is difficult to use for products that require relative positional accuracy between the object 60 and the post 62. It was. Further, when the pins 61 and the posts 62 are insert-molded, there is a problem that the cost increases.

Therefore, as shown in FIG. 11, a screw hole 66 is formed in the post 65, and an interval adjusting structure in which these are fixed by a screw 67 with an annular spacer 68 interposed between the object 60 and the post 65. Is widely used.
This interval adjustment structure is used for focus adjustment of a camera module, for example. In the camera module, focus adjustment is performed by adjusting the distance between the post formed on the lens holder and the substrate on which the image sensor is mounted with a spacer.

In addition, as a spacer different from the washer type, Patent Document 1 (Japanese Patent Laid-Open No. 2000-9982) discloses a thin plate-like spacer interposed between the mounting reference plane of the image sensor and the image sensor. Yes. The mounting reference surface of the image sensor is formed on a lens holder that holds the lens.
In this case, the end of the spacer is fixed by a plurality of screws, and the distance between the mounting reference plane of the image sensor and the image sensor is adjusted by adjusting the thickness or the number of the spacers, thereby performing focus adjustment.

JP 2000-9982 A

However, since the thin plate-shaped spacer disclosed in Patent Document 1 is in contact with substantially the entire surface of the object, other devices cannot be mounted on the part where the spacer is disposed on the object. There was a problem of being limited. If the optical axis of the lens held by the lens holder and the image sensor are not orthogonal to each other, it is necessary to adjust the inclination of the image sensor with the mounting reference plane of the image sensor on the lens holder side. In the spacer, the plurality of screws that fasten the attachment reference surface and the image sensor cannot be adjusted independently of each other. Therefore, the inclination of the attachment reference surface and the image sensor cannot be adjusted.
In addition, there is a risk that the spacer of the washer type may fall off or shift when assembled. Furthermore, if the spacer is displaced from the top of the object with the spacer displaced, there is a problem that the accuracy of the product is lowered.

  Therefore, an object of the present invention is to provide an interval adjusting spacer, an interval adjusting structure, and a camera module capable of preventing the spacer from falling off or shifting when the object is fixed to the post together with the spacer. To do.

  In order to solve the above-mentioned problem, a spacer for adjusting a distance according to the present invention is fixed to a post together with an object by a screw, and the screw passes through the spacer for adjusting an interval for adjusting the distance between the object and the post. A hole portion and a diameter larger than that of the hole portion, and a concave portion that fits into the tip of the post are provided.

  Since this spacing adjusting spacer has a recess that fits into the post, it is possible to prevent the spacer from falling off or shifting when the spacing adjusting spacer is incorporated. Further, since the center axis of the post and the center axis of the spacer for adjusting the interval can be matched, the interval adjustment is facilitated.

Moreover, it is preferable that the convex part which can be fitted with the said recessed part is provided in the opposite side to the surface in which the said recessed part was provided.
This is because a convex portion is provided on the spacer for adjusting the interval, and when a plurality of spacers for adjusting the interval are used in an overlapping manner, the convex portion of one spacer for adjusting the interval is fitted with the concave portion of another spacer. Thus, it is possible to prevent the spacers from dropping or the spacers from shifting when the spacers are assembled. In addition, since the central axes of the plurality of spacers for interval adjustment can all be matched, the interval adjustment becomes easy.

  Furthermore, it is preferable that the height of the convex portion is larger than the depth of the concave portion, so that when the spacer for adjusting the interval is used in an overlapped manner, the surface formed with the concave portion is fitted to the concave portion. It is possible to prevent the stepped portion on the outer periphery of the spacer from coming into contact and appropriately adjust the distance between the object and the post.

Moreover, it is preferable that the space | interval adjustment spacer set which concerns on this invention contains two or more above-mentioned space | interval adjustment spacers, and the said recessed part and said convex part of the said space | interval adjustment spacers which adjoin each other fit.
In this way, by adjusting the interval between the object and the post, it is possible to easily and accurately adjust the interval between the object and the post by fitting the recesses and the projections of the interval adjusting spacer and using the plurality of spacers. Furthermore, by selecting the number of spacer adjustment spacers to be combined, the distance between the object and the post can be set finely to a desired distance.

Further, the interval adjusting structure according to the present invention includes an object formed with a through-hole through which a screw passes, a post into which the screw is inserted, and the object fixed to the post together with the object by the screw. And an interval adjusting spacer for adjusting an interval between the post and the post, and the interval adjusting spacer has a hole portion through which the screw passes and a larger diameter than the hole portion, and is fitted to the tip of the post. It has a recessed part, It is characterized by the above-mentioned.
According to this interval adjusting structure, it is possible to prevent the interval adjusting spacer from dropping or shifting when adjusting the interval between the object and the post, and it is possible to adjust the interval easily and accurately.

Furthermore, it is preferable that the space | interval for spacer adjustment is provided with the convex part which can be fitted with the said recessed part on the opposite side to the surface in which the said recessed part was provided.
Thereby, it is possible to prevent the spacers from dropping or the spacers from shifting when the spacers are assembled. In addition, since the central axes of the plurality of spacers for interval adjustment can all be matched, the interval adjustment becomes easy.

Furthermore, it is preferable to provide a space adjusting spacer set including a plurality of space adjusting spacers having different thicknesses from the bottom surface of the concave portion to the top surface of the convex portion.
Thus, by using a plurality of spacing adjusting spacers having different thicknesses, the spacing between the object and the post can be finely set to a desired spacing.

  The camera module according to the present invention includes a lens, an image sensor that photoelectrically converts light incident from the lens, and the image sensor, and a through-hole through which a screw passes is formed around the image sensor. A substrate, a lens holder that includes a post that holds the lens and the screw is inserted, and a spacer for adjusting a distance that is fixed to the post together with the substrate by the screw and adjusts a distance between the substrate and the post. The spacing adjusting spacer has a hole through which the screw passes, and a recess having a diameter larger than that of the hole and fitting with the tip of the post.

In this camera module, the interval adjusting spacer is mainly used for focus adjustment for adjusting the distance between the image sensor and the lens. The lens includes at least one lens. That is, the lens may be composed of a single lens, or may include a plurality of lenses or other optical elements.
According to this camera module, since the spacer for adjusting the distance has a recess that fits into the post of the lens holder, the spacer is not dropped or displaced when the camera module is assembled, and the assembly is easy. It can be done. Further, since the center axis of the post and the center axis of the spacer for adjusting the distance can be matched, it is possible to prevent the optical axis from being inclined when the camera module is assembled.

  According to the present invention, since the spacer for adjusting the distance is provided with the recess that fits into the post, it is possible to prevent the spacer from dropping or shifting when the spacer for adjusting the distance is assembled. In addition, since the center axis of the post and the center axis of the spacer for adjusting the distance can be matched, the distance can be easily adjusted.

It is sectional drawing which shows the space | interval adjustment structure which concerns on embodiment of this invention. It is a figure which shows the spacer for space | interval adjustment which concerns on embodiment of this invention, (a) is sectional drawing, (b) is a bottom view. It is sectional drawing of the spacer for space | interval adjustment which shows the modification of FIG. It is sectional drawing which shows the space | interval adjustment structure using the spacer for space | interval adjustment of FIG. It is sectional drawing of the camera module which concerns on embodiment of this invention. It is sectional drawing of the camera module which shows the modification of FIG. It is sectional drawing of the camera module which shows the other modification of FIG. (A) It is a table | surface which shows the kind of spacer, (b) It is a table | surface which shows the combination of a spacer. It is sectional drawing of the camera module which shows the other modification of FIG. It is sectional drawing of the conventional space | interval adjustment structure. It is sectional drawing which shows the other example of the conventional space | interval adjustment structure.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the shape of the component described in this embodiment is not intended to limit the scope of the present invention, but merely an illustrative example.

First, the spacing adjusting spacer 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4.
FIG. 1 is a cross-sectional view showing an interval adjusting structure according to an embodiment of the present invention, and FIG. 2 is a view showing an interval adjusting spacer according to an embodiment of the present invention.

As shown in FIG. 1, a spacing adjusting spacer (hereinafter simply referred to as a spacer) 1 is used to adjust the spacing between the object 11 and the post 16, and is fixed to the post 16 together with the object 11 by a screw 15. The
As shown in FIG. 2A, the spacer 1 is formed in a columnar shape, and is mainly composed of a hole portion 2 penetrating along the central axis and a recess portion 3 having a larger diameter than the hole portion 2. The
The recess 3 is formed on the surface 5 on one end side of the spacer 1 and communicates with the hole 2. As shown in FIG. 2B, the hole 2 and the recess 3 are formed concentrically. FIG. 2B is a bottom view of the spacer 1 in FIG.
The recess 3 has a shape in which the tip of the post 16 is fitted.

As shown in FIG. 1, the surface 6 opposite to the surface 5 on which the recess 3 is formed and the recess bottom surface 7 are flat surfaces parallel to each other.
Furthermore, the thickness d between the surface 6 opposite to the surface on which the recess 3 is formed and the bottom surface 7 of the recess is set to a required distance between the object 11 and the post 16.
As described above, since the spacer 1 has the recess 3 that fits into the post 16, it is possible to prevent the spacer 1 from dropping or shifting when the spacer 1 is assembled. Furthermore, since the center axis of the post 16 and the center axis of the spacer 1 can be made coincident with each other, the interval adjustment becomes easy.

FIG. 3 is a cross-sectional view of a spacer showing a modification of FIG.
The spacer 1 has a convex portion 4 that can be fitted to the concave portion 3 on a surface 6 opposite to the surface 5 on which the concave portion 3 is formed. The top surface 6 of the convex portion 4 is a flat surface parallel to the concave bottom surface 7. By having this convex part 4, the outer periphery of the spacer 1 becomes the shape in which the level | step-difference part 8 was formed in the axial direction.

  Thus, when the spacer 1 has the convex portion 4, when the plurality of spacers 1A and 1B are used in an overlapping manner as shown in FIG. 4, the convex portion 4A of the spacer 1A is fitted with the concave portion 3B of the spacer 1B. Thus, it is possible to prevent the spacer 1A or the spacer 1B from dropping off or the spacers 1A and 1B from being displaced from each other when the spacers 1A and 1B are assembled. Further, since the central axes of the plurality of spacers 1A and 1B can be made coincident with each other, the interval adjustment becomes easy.

Further, as shown in FIG. 3, the height H ₂ of the convex portion 4 of the spacer 1 is preferably larger than the depth H ₁ of the concave portion 3. Thus, when the spacers 1A and 1B are used in an overlapping manner as shown in FIG. 4, the stepped portion 8A of the spacer 1A and the surface 5B on which the recess 3B of the spacer 1B is formed do not come into contact with each other. The distance between the object 11 and the object 11 can be adjusted appropriately.

With reference to FIG. 4, the spacer set 10 which concerns on embodiment of this invention is demonstrated.
The spacer set 10 includes a plurality of spacers 1A and 1B. That is, the spacer set 10 includes a spacer 1A having a recess 3A fitted to the tip of the post 16, and a spacer 1B having a recess 3B fitted to the convex portion 4A of the spacer 1A.
Details of the spacer set 10 will be described later together with a camera module including the spacer set 10.

  With reference to FIG.1 and FIG.4, the space | interval adjustment structure which concerns on embodiment of this invention is demonstrated. FIG. 1 shows an interval adjustment structure in the case of using a spacer 1 that does not have a convex portion, and FIG. 4 shows an interval adjustment structure in the case where a plurality of spacers 1A and 1B having a convex portion 4 are used.

The interval adjusting structure shown in FIG. 1 is mainly configured by an object 11 having a through hole 12, a post 16 into which a screw 15 is inserted, and a spacer 1 fixed together with the object 11 by the screw 15.
The screw 15 is a female screw having a thread on the outer periphery.
The object 11 has a plate-like shape in which at least a portion whose distance is adjusted by the spacer 1 includes a flat surface on both the front and back surfaces, and has a through hole 12 that penetrates the plate-like portion. The through hole 12 has a larger diameter than the axis of the screw 15 on which the thread is formed and a smaller diameter than the screw head of the screw 15.

The post 16 is formed in a columnar shape and has a screw hole 17 into which a screw 15 is screwed on the tip side. The post 16 is formed on a member different from the object 11, for example, and a plurality of the posts 16 may be provided on another member. The screw hole 17 may have a shape whose diameter is tapered to the back of the opening.
The spacer 1 has a recess 3 formed on a surface 5 on one end side. The detailed configuration of the spacer 1 is the same as the configuration described above, and is omitted.

When adjusting the distance between the object 11 and the post 16, the object 11 is selected by selecting the thickness d (see FIG. 2) between the bottom surface 7 of the concave portion of the spacer 1 and the top surface 6 of the convex portion. And the post 16 can be set to a desired interval.
According to this interval adjustment structure, it is possible to prevent the spacer 1 from dropping or shifting when adjusting the interval between the object 11 and the post 16, and it is possible to adjust the interval easily and accurately.

The interval adjusting structure shown in FIG. 4 uses spacers 1A and 1B having concave portions 3A and 3B and convex portions 4A and 4B in an overlapping manner.
In this spacing adjustment structure, the spacer 1A is arranged with the tip of the post 16 fitted into the recess 3A, and the spacer 1B is arranged with the projection 4A of the spacer 1A fitted into the recess 3B of the spacer 1B. The object 11 is fixed by a screw 15 together with the spacers 1A and 1B.
When adjusting the distance between the object 11 and the post 16, by selecting the thickness d (see FIG. 3) and the number of combinations of the bottom surfaces of the concave portions of the spacers 1A and 1B and the top surface of the convex portions, A desired distance can be set between the object 11 and the post 16.

  As described above, by using the plurality of spacers 1A and 1B in an overlapping manner by fitting the convex portions 4A and 4B and the concave portions 3A and 3B of the spacers 1A and 1B, it is easy to adjust the distance between the object 11 and the post 16. In addition, it can be performed with high accuracy. Furthermore, by selecting the thicknesses of the spacers 1A and 1B and the number of combinations, it is possible to set the space between the object 11 and the post 16 at a desired distance.

FIG. 5 is a cross-sectional view of the camera module according to the embodiment of the present invention.
This camera module mainly includes a lens group 20, a lens holder (lens holder) 30 that holds the lens group 20 and includes a post 32, an imaging element 42 that photoelectrically converts light incident from the lens group 20, and A substrate 40 on which the image sensor 42 is mounted, and a spacer 1 that is interposed between the substrate 40 and the post 32 and adjusts the distance between the image sensor 42 and the lens 20 are configured.

  The lens group 20 includes at least one lens. The lens group 20 may include an optical element other than the lens together with the lens. The optical elements other than the lens are a diaphragm, an optical filter, a prism, and the like. The number, type, and combination of lenses or optical elements other than lenses are not limited. FIG. 5 shows an example of the lens group 20. The lens group 20 includes, in order from the side opposite to the image sensor 42 (subject side), a first lens 21 that is convex on the subject side and concave on the image sensor side, a second lens 22 that is concave on the image sensor side, and a third lens that is convex on both sides. The lens 23 includes a fourth lens 24 that is concave on the subject side and convex on the image sensor side, and a spacer 25 is interposed between the third lens 23 and the fourth lens.

The lens holder 30 includes a lens holding portion 31 that holds the lens group 20 and a post 32 that is formed around the lens holding portion 31.
The post 32 is formed in a columnar shape, and has a screw hole 33 into which the screw 15 is screwed on the tip side. The screw hole 33 may have a shape whose diameter is tapered to the back of the opening.
Further, the post 32 is erected in parallel with the optical axis of the lens group 20 held by the lens holding portion 31. A plurality of the posts 32 are formed around the lens holding portion 31, and preferably three or more are formed so as to be separated from each other. Thus, the optical axis can be maintained with high accuracy when the spacer 1 performs focus adjustment between the image sensor 42 and the lens group 20.
Furthermore, an opening 34 for allowing light to enter the lens group 20 is formed on the subject side of the lens holder 30. A fixed ring 39 for fixing the lens group 20 after the lens group 20 is assembled is fitted into the opening 34. Similarly, an opening 35 for emitting light incident on the lens group 20 is formed on the image pickup element 42 side of the lens holder 30.

The imaging element 42 includes a photoelectric conversion device such as a CCD (charge coupled device), CMOS (metal oxide semiconductor element), photodiode, or phototransistor, and receives light imaged by the lens group 20 and converts it into an electrical signal. To do.
The substrate 40 has an image sensor 42 fixed thereto by soldering or the like, and has a through hole 41 around the image sensor 42. The through hole 41 is provided at a position corresponding to the post 32, and is formed with a diameter larger than the axis of the screw 15 and smaller than the screw head.

One spacer 1 may be interposed between the post 32 of the lens holder 30 and the substrate 40, or a spacer set 10 including a plurality of spacers 1 may be interposed. FIG. 5 shows a camera module with one spacer 1 interposed as an example. The spacer 1 is formed in a columnar shape in which a concave portion 3 is formed on a surface on one end side and there is no stepped portion on the outer periphery.
By selecting the thickness of the spacer 1 (see thickness d in FIG. 2), the distance between the post 32 of the lens holder 30 and the substrate 40 is adjusted, thereby adjusting the distance between the image sensor 42 and the lens group 20. Then, focus adjustment is performed.

  According to this camera module, since the spacer 1 has the concave portion 3 fitted to the post 32 of the lens holder 30, the spacer 1 is not dropped or displaced when the camera module is assembled. Can be done easily.

FIG. 6 is a cross-sectional view of a camera module showing a modification of FIG.
This camera module uses a spacer 1 different from the spacer shown in FIG. The spacer 1 used here has a concave portion 3 formed on one end side surface and a convex portion 4 formed on a surface opposite to the surface on which the concave portion 3 is formed. Therefore, when a plurality of spacers 1 are stacked, by fitting the convex portions and concave portions of the adjacent spacers 1, the spacers can be prevented from shifting and focus adjustment can be easily performed.

FIG. 7 is a cross-sectional view of a camera module showing another modification of FIG.
This camera module uses a plurality of spacers 1 having concave and convex portions. That is, the spacer set 10 is used which includes the spacer 1A in which the concave portion 3A is fitted to the tip of the post 32 of the lens holder 30 and the spacer 1B in which the concave portion 3B of the spacer 1B is fitted to the convex portion 4A of the spacer 1A. . The number of spacers 1A and 1B to be stacked is not limited.

In addition, it is preferable to perform focus adjustment by adjusting a distance between the imaging element 42 and the lens group 20 by combining a plurality of spacers 1A and 1B having the same or different thickness d (see thickness d in FIG. 3). Thereby, it is possible to reduce the number of spacers 1A and 1B used.
For example, as shown in the table of FIG. 8A, five types of spacers with different thicknesses are prepared at a pitch of 0.01 mm on the front and rear with reference to the thickness β. As shown in the table of FIG. 8 (b), there are nine required intervals between the post 32 of the lens holder 30 and the substrate 40 in a stepwise manner with a pitch of 0.01 mm on the basis of α. Can be adjusted with two spacers having a thickness β, an appropriate interval can be set for all nine patterns by appropriately combining five types of spacers.

FIG. 9 is a cross-sectional view of a camera module showing another modification of FIG.
In this camera module, the optical axis of the lens group 20 is changed depending on the case where the imaging element 42 is not fixed parallel to the substrate 40 or the optical axis of the lens group 20 and the post 32 are not parallel. This is applied when the image sensor 42 is not orthogonal.
As shown in FIG. 9, by changing the thickness or combination of the spacers 1 in the plurality of posts 32, the angle between the image sensor 42 and the optical axis can be adjusted, and the inclination of the optical axis can be corrected. It becomes.

An example of the focus adjustment method using the spacers 1, 1A, 1B in the camera module shown in FIGS.
Here, a description will be given with reference to FIG.
First, the chart 50 is arranged on the subject side on the optical axis of the lens group 20, and the substrate 40 is temporarily arranged so that the imaging element 42 reflects the chart 50 through the lens group 20.

  The chart 50 is imaged at a plurality of predetermined positions by the imaging element 42 while moving the substrate 40 in the Z direction in the figure. Based on the image pickup signal from the image pickup element 42, the optimum position of the image pickup element 42 is calculated. In this case, it is determined whether the contrast of the chart 50 to be imaged is a peak or a certain value or more. These processes are repeated until the contrast reaches a peak or exceeds a certain value. When the position at which the contrast reaches a peak or a predetermined value or more is determined, the number and combination of the spacers 1A and 1B such that the lens group 20 and the imaging element 42 are in the positional relationship are selected, and the space between the post 32 and the substrate 40 is selected. These are fixed by screws 15 via spacers 1A and 1B.

It is also possible to adjust the tilt angles θx and θy of the image sensor 42 using the chart 50. As shown in FIG. 9, the image of the chart 50 is imaged by the image sensor 42 in the same manner as described above while adjusting the angle of the substrate 40 along the tilt angles θx and θy, and the contrast of the imaged chart 50 is constant. The above angle is detected. Then, the numbers and combinations of the spacers 1A and 1B are selected in the plurality of posts 32 so that the detected tilt angles θx and θy are obtained.
By using the plurality of spacers 1A and 1B in this way, it becomes possible to perform focus adjustment with high accuracy.

1, 1A, 1B Spacing adjustment spacer 2 Hole 3, 3A, 3B Recess 4, 4A, 4B Protrusion 7 Concave bottom 8, 8A Step 10 Spacer set 11 Object 12 Through hole 15 Screw 16 Post 17 Screw hole 20 Lens group 21 Lens 30 Lens holder (lens holder)
DESCRIPTION OF SYMBOLS 31 Lens holding part 32 Post 33 Screw hole 34 Subject side opening part 35 Imaging side opening part 40 Substrate 41 Through hole 42 Image sensor

Claims (8)

In an interval adjusting spacer that is fixed to a post together with an object by a screw and adjusts an interval between the object and the post,
A hole through which the screw passes;
The spacer for space | interval adjustment characterized by having a larger diameter than the said hole part, and providing the recessed part fitted with the front-end | tip of the said post.   The spacing adjusting spacer according to claim 1, wherein a convex portion that can be fitted to the concave portion is provided on a side opposite to the surface on which the concave portion is provided.   The distance adjusting spacer according to claim 2, wherein the height of the convex portion is greater than the depth of the concave portion.   A spacer set comprising a plurality of spacing adjustment spacers according to claim 2, wherein the concave portions and the convex portions of the adjacent spacing adjustment spacers are fitted to each other. An object formed with a through-hole through which a screw passes;
A post into which the screw is inserted;
It is fixed to the post together with the object by the screw, and includes an interval adjusting spacer that adjusts an interval between the object and the post,
The spacing adjusting spacer is
A hole through which the screw passes;
An interval adjusting structure having a diameter larger than that of the hole portion and having a recess that fits with a tip of the post.   6. The spacing adjusting structure according to claim 5, wherein the spacing adjusting spacer is provided with a convex portion that can be fitted to the concave portion on a side opposite to the surface on which the concave portion is provided.   The space adjustment structure according to claim 6, further comprising a spacer set including a plurality of the space adjustment spacers having different thicknesses from a bottom surface of the concave portion to a top surface of the convex portion. A lens,
An image sensor that photoelectrically converts light incident from the lens;
A substrate on which the imaging element is mounted and a through hole through which a screw passes is formed around the imaging element;
A lens holder that holds the lens and includes a post into which the screw is inserted;
It is fixed to the post together with the substrate by the screw, and includes an interval adjusting spacer that adjusts an interval between the substrate and the post,
The spacing adjusting spacer is
A hole through which the screw passes;
A camera module having a diameter larger than that of the hole portion and having a recess that fits with a tip of the post.

Images