JP4582407B2 - Image sensor unit, lens barrel, and image pickup apparatus - Google Patents

Description

  The present invention relates to an imaging element unit, a lens barrel, and an imaging apparatus.

When assembling the image sensor to the lens barrel, it is proposed that the image sensor unit is configured by attaching the image sensor to the connector and mounting the connector on the mounting substrate, and then attaching the image sensor unit to the lens barrel. (See Patent Document 1).
In such an image sensor unit, a positioning substrate is provided on the image sensor, and the positioning substrate is fastened to the mounting substrate with screws so that the image sensor is fixed so as not to fall off the connector.
However, such a configuration has a problem that the number of parts is large and the assembling work becomes complicated.
For this reason, as shown in (Japanese Patent Application No. 2003-356790), the present applicant has proposed a configuration in which a package constituting an imaging device is bonded to a holder and the holder is attached to a lens barrel with a screw or the like.
According to this configuration, the image sensor is attached to the lens barrel via the holder, which is advantageous in simplifying the configuration.
Japanese Patent No. 3187922

However, in the above configuration, if the area of the package of the image sensor due to downsizing of the image sensor, in other words, the bonding area of the package decreases, a disadvantage occurs in securing the adhesive strength between the image sensor and the holder, There are concerns about disadvantages in reducing the size of the imaging element unit, the lens barrel, and the imaging device.
The present invention has been made in view of such circumstances, and an object of the present invention is to secure an adhesive strength between the image sensor and the holder, even when there is little adhesive space in the image sensor, and to provide an image sensor unit and a lens mirror. An object of the present invention is to provide an image pickup element unit, a lens barrel, and an image pickup apparatus that are advantageous in reducing the size of the tube and the image pickup apparatus.

In order to achieve the above-described object, the present invention provides an image sensor unit including an image sensor that captures a subject image guided by an optical system and a holder that holds the image sensor, and the image sensor has a thickness direction. A package having a front surface and a back surface formed on both sides of the package and formed in a flat shape, and an imaging unit accommodated and held in the package so that an imaging surface for imaging the subject image is located on the surface of the package; The package has side surfaces that connect the front surface and the back surface and face each other, and an adhesive filling recess is formed on the side surfaces facing each other, and the package has a flat rectangular plate shape. The side surfaces of the package facing each other are one set of side surfaces of the two sets of side surfaces of the package facing each other; The holder is formed to extend continuously along the extending direction of the side surfaces of the set, the holder has a pair of wall portions facing each other, and the adhesive filling recess is open at the tip of the wall portion. The holder has a portion that passes through the inside of the cutout, and is exposed to the outside in the cutout, and the holder includes a main body provided with an opening that exposes the imaging surface, and the pair of wall portions includes The image pickup device is disposed with the image pickup surface facing the opening, and the image pickup device is disposed between the pair of wall portions of the package. The side surfaces of the package are fixed to each other by being bonded to each other by the adhesive filled in the concave portion for filling the adhesive. .
According to another aspect of the present invention, there is provided a lens including an optical system that is provided inside a lens barrel and guides a subject image, an image sensor that captures the subject image guided by the optical system, and an image sensor unit that includes a holder that holds the image sensor. A lens barrel, wherein the imaging element includes a package formed in a flat shape having a front surface and a back surface formed on both sides in a thickness direction, and an imaging surface for capturing the subject image on the surface of the package. An imaging unit housed and held in the package so as to be positioned, the package having side surfaces that connect the front surface and the back surface and face each other, and the adhesive filling recesses on the side surfaces facing each other The package has a flat rectangular plate shape, and the side surfaces of the package facing each other are one of the two side surfaces of the package facing each other. The concave portion for filling the adhesive is formed so as to extend continuously along the extending direction of the one set of side surfaces, and the holder has a pair of wall portions facing each other, and the adhesive The concave portion for filling the agent has a portion that passes through the inside of the notch formed in an open shape at the tip of the wall portion, and is exposed to the outside in the notch, and the holder is an opening that exposes the imaging surface The pair of wall portions are provided so as to protrude from the main body portions on both sides of the opening, and the imaging element is disposed with the imaging surface facing the opening, The imaging element is disposed between the pair of wall portions so that the side surfaces facing each other face each other, and the side surface of the package and the pair of wall portions are formed by an adhesive filled in the adhesive filling recess. Is fixed by being glued It is characterized in.
Further, the present invention includes an optical system that is provided inside a lens barrel and guides a subject image, and an image sensor unit, and the image sensor unit picks up a subject image guided by the optical system, and the imaging device. An image pickup apparatus configured to include a holder for holding an element, wherein the image pickup element includes a flat package having a front surface and a back surface formed on both sides in a thickness direction, and the subject image. An image pickup unit accommodated and held in the package so that an image pickup surface for picking up an image is located on the surface of the package, the package having side surfaces that connect the front surface and the back surface and face each other, and the package Recesses for filling the adhesive are formed on the side surfaces facing each other, the package has a flat rectangular plate shape, and the side surfaces facing each other of the package are the package The adhesive filling recesses are formed to extend continuously along the extending direction of the one set of side surfaces, and the holders are mutually connected. The adhesive filling recess has a portion passing through the inside of a notch formed in an open shape at the tip of the wall, and is exposed to the outside in the notch. The holder includes a main body portion provided with an opening for exposing the imaging surface, the pair of wall portions projecting from the main body portion on both sides of the opening, and the imaging element includes the imaging device. An adhesive that is disposed with the surface facing the opening, and the imaging element is disposed between the pair of wall portions with the side surfaces facing each other facing each other, and is filled in the concave portion for filling the adhesive By the side surface of the package and the pair of wall portions There, characterized in that it is fixed by being bonded.

Therefore, according to the present invention, the adhesive filling recess is formed in a flat package having a front surface and a back surface formed on both sides in the thickness direction of the imaging device, and the adhesive filling recess is formed on the package. By using it, the area of the package bonded by the adhesive can be secured, and even if the area of the side surface of the package decreases due to the downsizing of the package, the adhesive strength between the image sensor and the holder This is advantageous in improving the image quality, and is advantageous in reducing the size of the lens barrel and the imaging apparatus while ensuring the adhesive strength of the imaging element. In addition, the notch is formed open at the tip of the wall, and the adhesive filling recess is exposed to the outside in the notch. Therefore, the bonding operation can be performed even in the inverted state, and the adhesive can be easily and reliably filled.

  The above object is realized by forming a concave portion for filling an adhesive in the package of the image sensor.

First, Comparative Example 1 of the present invention will be described with reference to the drawings.
In this comparative example, a case will be described in which a lens barrel provided with an imaging element unit of the present invention is incorporated in an imaging apparatus.
1 is a perspective view of the imaging device of Comparative Example 1 as viewed from the front, FIG. 2 is a perspective view of the imaging device of Comparative Example 1 as viewed from the rear, and FIG. 3 is a perspective view of the imaging device of Comparative Example 1 as viewed from below. FIG. 4 is an explanatory diagram for explaining a storage state of the memory card and the battery, and FIG. 5 is a block diagram showing a control system of the imaging apparatus.
As shown in FIGS. 1 and 2, the imaging apparatus 100 is a digital still camera, and includes a rectangular plate-like case 102 that constitutes an exterior, and the case 102 includes a front case 102A and a rear case 102B. The front case 102A constitutes the front surface of the case 102, and the rear case 102B constitutes the rear surface of the case 102. In the present specification, the left and right sides of the case 102 are assumed to be viewed from the front.
As shown by a two-dot chain line in the drawing, the lens barrel 10 according to the present invention is incorporated in the right side portion of the case 102, and the lens barrel 10 has an objective lens 14, an image sensor 11, and an objective. An optical system 104 that guides the subject image captured by the lens 14 to the image sensor 11 is provided, and the objective lens 14 and the optical system 104 constitute an optical system as claimed.
The objective lens 14 is disposed facing the front of the case 102 through a lens window 103 provided in the front case 102A.
A flash 108 that emits photographing auxiliary light, a self-timer lamp 110, and the like are provided at a position on the right side of the front surface of the case 102.
A cover 112 is provided on the front surface of the case 12 so as to be slidable up and down. As shown in FIG. 1, the cover 112 has a lower limit position for exposing the lens window 103, the flash 108, and the self-timer lamp 110 forward, and these lenses It is slid to the upper limit position covering the window 103, the flash 108, and the self-timer lamp 110.
A shutter button 114, a power button 116, and the like are provided on the left side of the upper surface of the case 12.
On the rear surface of the case 12, a display 118 (liquid crystal display) on which images such as still images and moving images, characters and symbols are displayed, a zoom switch 120 for performing a zooming operation of the photographing optical system 104, and various operations are performed. A cross switch 122 and a plurality of operation buttons 124 are provided.
A mode switch 126 for switching the imaging device 100 to a still image shooting mode, a moving image shooting mode, a playback / editing mode, or the like is provided on the left side surface of the case 12.
As shown in FIGS. 3 and 4, on the lower surface of the case 102, a memory accommodating chamber 102 </ b> A that detachably accommodates a memory card 132 for recording an image such as a still image or a moving image, and the imaging device 100. A battery housing chamber 102B for detachably housing the battery 138 constituting the power source is provided in the front-rear direction (thickness direction) of the case 12. The memory housing chamber 102A and the battery housing chamber 102B are opened and closed by an opening / closing lid 102C connected to the lower surface of the case 102 via a hinge.

As shown in FIG. 5, the image pickup device 11 is configured by a CCD, a CMOS sensor, or the like that picks up a subject image formed by the optical system 104.
With the imaging device 11 performs the image pickup operation by a drive signal supplied from the image processing unit 130 is configured image captured by the imaging element 11 to output to the image processing unit 130 as an image pickup signal, the image in this comparative example An imaging circuit is configured by the processing unit 130.
The image processing unit 130 generates still image data or moving image data based on the imaging signal, and records the image data in a memory card (storage medium) 132. The image data is displayed on the display 118 by the display processing unit 134.
An image picked up by the image pickup device 11 is output as an image pickup signal to the image processing unit 130, and the image processing unit 130 generates image data of a still image or a moving image based on the image pickup signal and stores it in a memory card (storage medium) 132. To be recorded. The image data is displayed on the display 118 by the display processing unit 134.
Furthermore, the imaging apparatus 100 includes a control unit 136 including a CPU that controls the image processing unit 130 and the display processing unit 134 in accordance with operations of the shutter button 114, the cross switch 122, the operation button 124, and the mode switch 126. Yes.

  6 is a perspective view of the lens barrel 10 as viewed obliquely from the front, FIG. 7 is a perspective view of the lens barrel 10 as viewed from obliquely rear, and FIG. 8 is an exploded perspective view showing a part of the configuration of the lens barrel 10. 9 is an exploded perspective view showing the remaining structure of the lens barrel 10, FIG. 10 is a cross-sectional view taken along line XX of FIG. 6, FIG. 11 is a cross-sectional view taken along line YY of FIG. 13 is a cross-sectional perspective view of the right side portion of the lens barrel 10, FIG. 14 is a cross-sectional view of the first lens barrel divided body 1202, and FIG. 15 is a cross-sectional view of the second lens barrel divided body 1204. 16 is a perspective view of the zoom movable lens group 18 and the focus movable lens group 20, and FIG. 17 is a cross-sectional perspective view of the main part of the second barrel segment 1204.

As shown in FIGS. 6 to 9, the lens barrel 10 includes a lens barrel 12, an objective lens 14, an image sensor 11, and an optical system 104.
In this comparative example, the optical system 104 includes a prism 16, a zoom movable lens group 18, a focus movable lens group 20, a first fixed lens group 22, a second fixed lens group 24, and a third lens. A fixed lens group 26, a guide mechanism 28 for the zoom movable lens group 18, and a guide mechanism 30 for the focus movable lens group 20.
Further, a driving means 32 for moving the zoom movable lens group 18 and a driving means 34 for moving the focus movable lens group 20 are provided.

As shown in FIGS. 6 and 7, the lens barrel 12 has a flat plate shape having a width, a length, and a thickness as a whole, and the objective lens 14, the image sensor 11, and the optical system 104 are included in the lens barrel 12. They are arranged along the length direction of the lens barrel 12 at the center in the width direction.
The lens barrel 12 includes a first lens barrel segment 1202 and a second lens barrel segment 1204 that are divided in the length direction, and a third lens barrel segment that is sandwiched between the two lens barrel segments 1202 and 1204. 1206, the first lens barrel divided body 1202 is located in one half of the lens barrel 12 in the longitudinal direction, and the second lens barrel divided body 1204 is located in the other half of the lens barrel 12 in the longitudinal direction. The third lens barrel divided body 1208 is interposed between the first lens barrel divided body 1202 and the second lens barrel divided body 1204.
In this comparative example, as shown in FIG. 1, since the length direction of the lens barrel 12 is arranged in the vertical direction, the first lens barrel divided body 1202 is located at the upper part of the lens barrel 12, The second lens barrel divided body 1204 is located at the lower part of the lens barrel 12, and the third lens barrel divided body 1208 is located at the center in the vertical direction of the lens barrel 12. Then, one surface in the thickness direction of the lens barrel 12 parallel to the front surface of the case 102 of the imaging device 100 is the front surface of the lens barrel 12, and the other surface parallel to the rear surface of the case 102 is the rear surface of the lens barrel 12. One surface in the width direction of the lens barrel 12 is a left side surface, and the other surface is a right side surface. In this comparative example, the first, second, and third lens barrel divided bodies 1202, 1204, and 1206 are formed of a synthetic resin material.

As shown in FIGS. 8 and 10 to 13, the first lens barrel divided body 1202 is provided with a component housing space 1202 </ b> A having a rectangular cross section and an open shape on the lower surface. With the lens presser 1402 positioned on the side and the light shielding frame 1404 positioned on the rear surface side, the lens holder 1402 is attached to the upper portion of the front surface of the first lens barrel divided body 1202 and the central portion in the width direction.
The prism 16 reflects an image captured by the objective lens 14 downward (toward the image sensor 11), and a prism is used in this comparative example. The prism 16 is disposed at a location facing the objective lens 14 in the component housing space 1202A.
The first fixed lens group 22 and the zoom movable lens group 18 are disposed below the prism 16 in the component housing space 1202A.
The first fixed lens group 22 includes a lens 2202 incorporated in the attachment portion of the first barrel segment 1202 and a pressing member 2204 (also serving as a light shielding frame) that fixes the lens 2202 to the attachment portion. Yes.

As shown in FIG. 8, the zoom movable lens group 18 includes a first zoom lens 1802, second and third zoom lenses 1804 and 1805 bonded together, and the first, second, and third zoom lenses. And a zoom lens frame 1806 in which outer peripheral portions of the zoom lenses 1802, 1804, and 1805 are supported by caulking.
As shown in FIG. 14, the first, second, and third zoom lenses 1802, 1804, and 1805 located at both ends in the thickness direction of the lens barrel 12 are each cut off, whereby the thickness of the lens barrel 12 is obtained. Edges 1808 that extend linearly in parallel to the front and rear surfaces of the lens barrel 12 are provided at both ends of the first, second, and third zoom lenses 1802, 1804, and 1805 positioned at the end portions in the direction. It has been.
The zoom lens frame 1806 is positioned around the first, second, and third zoom lenses 1802, 1804, and 1805, and holds the first, second, and third zoom lenses 1802, 1804, and 1805. 1810 and an extending portion 1812 extending from the holding portion 1810 in the width direction in the component housing space 1202A.
The holding portion 1810 is provided with linear portions 1814 extending in parallel to the front and rear surfaces of the lens barrel 12 corresponding to the edge portions 1808 of the first, second, and third zoom lenses 1802, 1804, and 1805, respectively. It has been.
As shown in FIG. 16, the extending portion 1812 is provided with a rod insertion hole 1814, and flanges 1816 and 1816 facing each other in the longitudinal direction of the lens barrel 12 are provided, and these flanges 1816 and 1816 include As shown in FIG. 8, a female screw member 36 having a female screw 3604 is coupled through the shafts 3602 and 3602 so as not to move in the longitudinal direction of the lens barrel 12.
In addition, the engaging groove 1818 is located at a location of the holding portion 1810 located on the opposite side of the extending portion 1812 at a corner portion 1202B of the component housing space 1202A (where the left side surface and the rear surface intersect in this comparative example). Is formed.

A metal main guide shaft 38 extending in the length direction of the first lens barrel divided body 1202 is slidably inserted into the rod insertion hole 1814. Both ends of the main guide shaft 38 in the length direction are supported by a wall portion constituting the upper surface of the first barrel segment 1202 and a wall portion of the third barrel segment 1206. The main guide shaft 38 extends in parallel with the optical axes of the first, second, and third zoom lenses 1802, 1804, and 1805. In this comparative example, the main guide shaft 38 extends in the length direction of the first lens barrel divided body 1202. It is extended. Therefore, the main guide shaft 38 guides the zoom movable lens group 18 in the optical axis direction of the zoom movable lens group 18.
A sub guide shaft 40 extending in the length direction of the first lens barrel divided body 1202 is slidably inserted into the engagement groove 1818. Accordingly, the sub guide shaft 40 prevents the zoom lens 18 from rotating around the main guide shaft 38. The sub guide shaft 40 is formed integrally with the first lens barrel divided body 1202, and is therefore made of synthetic resin. Specifically, the sub guide shaft 40 includes a leg portion 4002 protruding from the corner portion 1202B of the component housing space 1202A, and a shaft-like portion 4004 provided at the tip of the leg portion 4002. The sub guide shaft 40 extends in parallel with the optical axes of the first, second, and third zoom lenses 1802, 1804, and 1805. In this comparative example, the sub guide shaft 40 extends in the length direction of the first lens barrel divided body 1202. It is extended.
The guide mechanism 28 for the zoom movable lens group 18 includes the main guide shaft 38 and the sub guide shaft 40.

As shown in FIGS. 8 and 16, the driving means 32 for moving the zoom movable lens group 18 includes a holder 3202 extending in the length direction of the lens barrel 12, and a motor 3204 provided on the top of the holder 3202. And a male screw member 3206 that extends along the holder 3202 and is rotationally driven by a motor 3204.
The holder 3202 is attached to a notch on the right side surface of the first lens barrel divided body 1202, whereby the male screw member 3206 is located in the component housing space 1202 </ b> A, and the motor 3204 is located on the upper surface of the first lens barrel divided body 1202. .
The male screw member 3206 is screwed into the female screw 3604 of the female screw member 36. Therefore, the zoom movable lens group 18 is guided along the optical axis direction while being guided by the main guide shaft 38 and the sub guide shaft 40 by forward and reverse rotation of the motor 3204. It is reciprocated and zooming is performed.
In the present comparative example, as shown in FIG. 14, the zoom movable lens group 18, the main guide shaft 38, and the male screw member 3206 are arranged in the width direction of the first barrel segment 1202 inside the first barrel segment 1202. The sub guide shafts 40 are arranged side by side, and are disposed at the zoom lens frame 1806 at the opposite side of the main guide shaft 38 and the male screw member 3206.

As shown in FIG. 8, the third barrel segment 1206 has an internal portion 1206A that faces the component storage space 1202A and an external portion 1206B that is positioned outside the component storage space 1202A.
The second fixed lens group 24 is attached to the inner portion 1206A with its optical axis coinciding with the optical axis of the zoom movable lens group 18, and an iris (aperture) 42 is provided on the rear surface of the second fixed lens 24. Has been placed. The iris 42 is opened and closed by a drive unit 44 attached to the outer portion 1206B of the third barrel segment 1206.
In this comparative example, as shown in FIG. 18, the sub guide shaft 40 protrudes below the lower surface of the first lens barrel divided body 1202, and more specifically, the first lens barrel divided body 1202 is divided into the third lens barrel divided. The projection part 40A of the sub guide shaft 40 protrudes downward from the mating surface to be fitted to the body 1206, and is fitted into the hole 1206A of the mating face of the third lens barrel split body 1206 so that the first lens barrel splitting is performed. The body 1202 and the third lens barrel divided body 1206 are positioned.
As shown in FIG. 14, the first lens barrel divided body 1202 and the third lens barrel divided body 1206 are attached by screws 202 in the vicinity of the drive unit 44, and the second lens barrel divided body 1204 and the first lens barrel divided body 1204 As shown in FIG. 9, the three-barrel divided body 1206 is attached by a screw 204 at a position near the right side surface.

In this comparative example, a component housing space 1204A having a rectangular cross section opened up and down is formed inside the second lens barrel divided body 1204, and an imaging element mounting portion is provided below the second lens barrel divided body 1204. When the holder 46 and the image sensor 11 are attached, the lower end of the component housing space 1204A is closed. Therefore, in the present comparative example, the second barrel segment 1204 is configured to include the holder 46.
Specifically, as shown in FIG. 10, an image sensor mounting portion 1205 for disposing the image sensor 11 is provided below the second barrel segment 1204.
The image sensor mounting portion 1205 includes an opening 1204B that allows the image sensor 11 to face the component housing space 1204A, and a mounting seat 1204E provided around the opening 1204B.
In this comparative example, the image sensor 11 is held by a holder 46 to form an image sensor unit 54, and the image sensor 11 is attached to the lens barrel 12 by attaching the image sensor unit 54 to the image sensor mounting portion 1205. It is arranged.
The focus movable lens group 20 and the third fixed lens group 26 are disposed at a position located in the center in the width direction of the second barrel segment 1204 in the component housing space 1204A.

The focus movable lens group 20 includes first and second focus lenses 2002 and 2004 that are bonded to each other, and a focus lens frame 2006 that supports the first and second focus lenses 2002 and 2004. Yes.
As shown in FIG. 15, the first and second focus lenses 2002 and 2004 located at both ends of the lens barrel 12 in the thickness direction are respectively cut off, so that the lens barrel 12 has end portions in the thickness direction. At both ends of the first and second focus lenses 2002 and 2004 that are positioned, edges 2008 that extend linearly in parallel to the front and rear surfaces of the lens barrel 12 are provided.
A focus lens frame 2006 is positioned around the first and second focus lenses 2002 and 2004, holds a first holding lens 2010, and a second holding lens 2010. The holding unit 2010 accommodates components. And an extension part 2012 extending in the width direction in the space 1204A.
The holding portion 2010 is provided with linear portions 2014 that extend in parallel with the front and rear surfaces of the lens barrel 12 corresponding to the edges 2008 of the first and second focus lenses 2002 and 2004, respectively.
The extension portion 2012 is provided with a rod insertion hole 2014, and as shown in FIG. 16, flanges 2016 and 2016 facing each other in the longitudinal direction of the lens barrel 12 are provided. As shown in FIG. 9, a female screw member 48 having a female screw 4804 is movably coupled in the longitudinal direction of the lens barrel 12 via shafts 4802 and 4802.
Further, the engagement groove 2018 is formed at a position of the holding portion 2010 located on the opposite side of the extending portion 2012 at a corner portion 1402B of the component housing space 1204A (where the left side surface and the rear surface intersect in this comparative example). Is formed.

A metal main guide shaft 50 extending in the length direction of the second barrel segment 1204 is slidably inserted into the rod insertion hole 2014. Both ends of the main guide shaft 50 in the length direction are supported by a wall portion of the third lens barrel divided body 1206 and a wall portion provided at a lower portion of the second lens barrel divided body 1204. The main guide shaft 50 extends in parallel with the optical axes of the first and second focus lenses 2002 and 2004, and extends in the length direction of the second barrel segment 1204 in this comparative example. . Therefore, the main guide shaft 50 guides the focus movable lens group 20 in the optical axis direction of the focus movable lens 28.
A sub guide shaft 52 extending in the length direction of the second lens barrel divided body 1204 is slidably inserted into the engagement groove 2018. Therefore, the sub guide shaft 52 prevents the focusing lens 20 from rotating around the main guide shaft 50. The sub guide shaft 52 is formed integrally with the second lens barrel divided body 1204 and is therefore made of synthetic resin. Specifically, the sub-guide shaft 52 includes a leg portion 5202 that protrudes from a corner of the component housing space 1204 </ b> A, and a shaft-like portion 5204 provided at the tip of the leg portion 5202. The sub guide shaft 52 extends in parallel with the optical axes of the first and second focus lenses 2002 and 2004, and extends in the length direction of the second barrel segment 1204 in this embodiment. .
The guide mechanism 30 for the focus movable lens group 20 includes the main guide shaft 38 and the sub guide shaft 40.
In this comparative example , as shown in FIG. 18, the sub-guide shaft 52 protrudes upward from the upper surface of the second barrel segment 1204. More specifically, the second barrel segment 1204 is a third mirror. The second mirror is projected by projecting upward from the mating surface to be fitted to the cylinder divided body 1206, and the protruding portion 52A of the sub guide shaft 52 is fitted into the hole 1206B of the mating surface of the third lens barrel divided body 1206. The cylinder segment 1204 and the third lens barrel segment 1206 are positioned.

The driving means 34 for moving the focus movable lens group 20 includes a holder 3402 extending in the length direction of the lens barrel 12, a motor 3404 provided below the holder 3402, and a motor extending along the holder 3402. And a male screw member 3406 that is rotationally driven by 3404.
The holder 3402 is attached to a notch on the right side surface of the second barrel segment 1204, whereby the male screw member 3406 is located in the component housing space 1204 </ b> A, and the motor 3404 is located in the lower portion of the second barrel segment 1204. .
The male screw member 3406 is screwed into the female screw 4804 of the female screw member 48. Accordingly, the movable lens group for focus 20 is guided along the optical axis direction while being guided by the main guide shaft 50 and the sub guide shaft 52 by forward and reverse rotation of the motor 3404. A reciprocating movement is performed and a focusing operation is performed.
Therefore, in this comparative example, the focus movable lens group 20, the main guide shaft 50, and the male screw member 3404 are arranged inside the second barrel segment 1204 in the width direction of the second barrel segment 1204. The sub guide shaft 52 is disposed at the focus lens frame 2006 located on the opposite side of the main guide shaft 50 and the male screw member 306.
The third fixed lens group 26 is disposed in a part accommodating space 1204A below the focus movable lens group 20, and is installed in a mounting portion of the second barrel segment 1204. It is composed of a pressing member 2604 that fixes the third fixed lens group 2602 to the mounting portion.

As shown in FIGS. 11, 12, 13, and 17, the upper end of the second barrel segment 1204A and the second fixed lens at the rear surface portion of the second barrel segment 1204 facing the component housing space 1204A. An uneven portion 1204 </ b> C is provided at a location between the groups 24.
In addition, an uneven portion 1204D is provided at a location between the third fixed lens group 26 and the image sensor 11 at a location on the rear surface of the second barrel segment 1204 facing the component housing space 1204A.
These concavo-convex portions 1204C and 1204D have entered through the objective lens 14, the prism 16, the first fixed lens group 22, the zoom movable lens group 18, the second fixed lens group 24, and the focus movable lens group 20. Of the light, the light that has reached the rear surface portion of the second barrel segment 1204 facing the component housing space 1204A is reflected by the rear surface portion, so that reflected light called so-called flare or ghost is generated. Is provided to prevent the image sensor 11 from reaching the light receiving surface of the image sensor 11 and adversely affecting the image signal of the image sensor 11.
Note that the unevenness interval of the uneven portion 1204D provided near the image sensor 11 is larger than the unevenness interval of the uneven portion 1204C provided at a location far from the image sensor 11. This is because the angle of the light striking the concave and convex portion 1204D is smaller than the angle of the light striking the concave and convex portion 1204C, and thus the second lens barrel can be obtained by changing the spacing of the concave and convex portions of the concave and convex portions 1204C and 1204D. There is an advantage that the detachability from the mold is improved when the divided body 1204 is molded.

Next, the mounting structure of the image sensor 11 will be described.
19 is a perspective view showing the image sensor unit 54 turned upside down, FIG. 20 is a cross-sectional view of the image sensor unit 54, FIGS. 21 and 22 are perspective views of the adhesive filling concave portion of the image sensor 11, and FIG. (A) is a side view showing an adhesion location of the image sensor unit 54, (B) is a sectional view of (A), FIG. 24 (A) is a side view showing an adhesion location of the image sensor unit 54, and (B) is ( FIG. 25 is a cross-sectional view showing a bonding location of the image sensor unit 54, and FIG. 26 is an exploded perspective view of the image sensor unit 54.
As shown in FIGS. 19 and 20, the holder 46 protrudes from a main body portion 4602 provided with an opening 4604 that exposes the imaging surface 1112 of the image sensor 11 and main body portions 4602 at both sides of the opening 4604. 11 package 1102 has a pair of wall portions 4606 that sandwich side surfaces 1110 facing each other.
The main body portion 4602 has a rectangular frame-shaped plate portion 4608 provided with an opening 4604 inside thereof.
On the surface 4610 of the plate portion 4608, an insertion piece 4614 for incorporation into the second lens barrel divided body 1204 protrudes, and the pair of wall portions 4606 protrude from the back surface 4612 of the plate portion 4608 so as to face each other. ing.
In the pair of wall portions 4606, a plurality of open cutouts 4616 are formed at the tips of the wall portions 4606 at intervals in the extending direction of the wall portions 4606, and the cutouts 4616 are bordered by a wall surface 4606A. Yes. The wall surface 4606A extends in a direction intersecting with the thickness direction of the package 1102 to be stored and held as will be described later. In this comparative example, the wall surface 4606A extends in a direction orthogonal to the thickness direction of the package 1102.
Positioning holes 4620 and screw insertion holes 4622 are provided on both side portions of the plate portion 4608 sandwiching each wall portion 4606 from the outside, and the attachment portion is formed by the plate portion 4608 provided with these positioning holes 4620 and screw insertion holes 4622. 4624 is configured.

As shown in FIGS. 19 and 20, the image pickup device 11 includes a package 1102 and an image pickup unit 1104.
The package 1102 has a flat rectangular plate shape (in this comparative example, a rectangular plate shape), and has a front surface 1106 and a back surface 1108 formed on both sides in the thickness direction, and four side surfaces connecting the periphery of the front surface 1106 and the back surface 1108. 1110. In this comparative example, the package 1102 is formed by laminating ceramic materials in the thickness direction.
The imaging unit 1104 is arranged inside the package 1102 so that an imaging surface 1112 on which a subject image is guided (captures the subject image) is positioned on the surface 1106 of the package 1102, and a plate-shaped seal glass 1113 is used to It is housed and held inside and sealed.
As shown in FIG. 19 and FIG. 21, a plurality of sets of two sides facing each other on the back surface 1108 of the package 1102 and a set of side surfaces 1110 following these sides are hatched in the figure. An electrode 1114 is formed.
A plurality of electrode forming recesses 1116 are formed in the side surface 1110 at intervals in the extending direction of the side surface 1110, and each electrode 1114 includes a conductive plating layer applied to the back surface 1108 of the package 1102 and this plating. And a conductive plating layer applied to each of the electrode forming recesses 1116 so as to be connected to the layer.
As shown in FIGS. 19 and 22, a plurality of adhesive filling recesses 1118 are formed on one set of side surfaces 1110 at intervals in the extending direction of the side surfaces 1110.
The adhesive filling recess 1118 includes a first recess 1118A having a length extending from the back surface 1108 to the front of the front surface 1106, as shown in FIG. 22, and a back surface 1108 and a front surface 1106, as shown in FIG. And a second recess 1118B having a length extending therebetween.
As shown in FIGS. 22 and 23, the first recess 1118A has a semicircular cross section, is open on the back surface 1108, and closes the first recess 1118A at the lengthwise end located on the front surface 1106 side. Wall surface 1120 to be used.
The wall surface 1120 extends in a direction intersecting with the thickness direction of the package 1102, and in this embodiment, extends in a direction orthogonal to the thickness direction of the package 1102.
As shown in FIGS. 21 and 24, the second concave portion 1118B is formed by the remaining portion of the concave portion for electrode formation 1116 to which the conductive plating layer is not applied, has a semicircular cross section, and is formed on the surface 1106 side. A wall surface 1120 that closes the second recess 1118B is provided at the end portion in the lengthwise direction.
Each wall surface 1120 of the first recess 1118A and the second recess 1118B extends in a direction intersecting the thickness direction of the package 1102, and in this embodiment, extends in a direction orthogonal to the thickness direction of the package 1102. Exist. In this manner, forming a recess such as the adhesive filling recess 1118 on the side surface of the package 1110 is extremely easy because the package 1102 is formed by laminating ceramic materials.
As shown in FIG. 20, on the back surface 1108 of the case 1102, there is a flexible substrate 129 as a wiring member that exchanges the drive signal and the imaging signal between the imaging unit 1112 and the image processing unit 130 described above. Soldered.
That is, each electrode 1114 of the image sensor 11 and each electrode 129A (FIG. 25) formed on the flexible substrate 129 are soldered by, for example, a reflow method.
A metal plate 64 is superimposed on the back surface opposite to the surface (mounting surface) on which the flexible substrate 129 faces the image pickup device 11 and is attached with an adhesive or the like.
As will be described later, the imaging element 11 and the holder 46 are arranged such that the imaging surface 1112 of the imaging element 11 faces the opening 4604 of the holder 46 and the adhesive filling recess 1118 fills the side surface of the package 1102 and the wall of the holder 46. The image sensor unit 54 is assembled by fixing the image sensor unit 54 to the image sensor unit.

Further, as shown in FIG. 26, the imaging element unit 54 is provided with a seal rubber 56, a light shielding sheet 58, and a filter 60.
That is, a frame-like seal rubber 56 is disposed around the opening 4604 of the surface 4610 of the holder 46, and a space 57 that faces the imaging unit 1104 is formed inside the seal rubber 56.
A plate-shaped filter 60 is disposed on the upper end of the seal rubber 56 via a frame-shaped light shielding sheet 58 so as to close the space 57. In this embodiment, the filter 60 is constituted by a low-pass filter.
The filter 60 is disposed so as to press the upper end of the seal rubber 56 through the light shielding sheet 58 by the pressing member 62 attached to the holder 46, and the seal rubber 56 is compressed by the filter 60. The pressing member 62 is attached to the holder 46 by engaging the engaging claw 4630 of the holder 46 with the engaging groove 6202 of the pressing member 62.
Accordingly, the space 57 is closed by the seal rubber 56, the light shielding sheet 58, the filter 60, and the like, and dust and the like are prevented from entering.

Next, assembly of the image sensor unit 54 using the holder 46 will be described.
First, the image sensor 11 is positioned with respect to the holder 46 using an unillustrated assembly jig or the like.
That is, for example, the imaging device 11 attached (soldered) to the flexible substrate 129 and the holder 46 are attached to an assembly jig (not shown), and the plate of the holder 46 is fixed to the four sides of the package 1102 of the imaging device 11. The holder 46 is positioned above the surface 1106 of the package 1102 while the four sides of the portion 4608 are parallel to each other, so that the imaging surface 1112 of the imaging element 11 faces the opening 4604 of the holder 46.
In this state, the position of the image sensor 11, that is, the position of the package 1102 is adjusted with reference to the mounting portion 4624 of the holder 46. Specifically, when the image pickup device unit 54 is attached to the image pickup device attachment portion 1205 via the attachment portion 4624, the center of the image pickup surface 1112 of the image pickup portion 1104 coincides with the optical axis of the optical system, and The position of the image sensor 11 is adjusted so as to be orthogonal to the optical axis. Such position adjustment can be performed based on image data generated based on an imaging signal obtained by imaging a predetermined test chart (test pattern) with the imaging element 11.
When the position adjustment is completed, as shown in FIG. 19, the image sensor 11 and the holder 46 that have been subjected to the position adjustment are reversed.
In this comparative example, in this state, as shown in FIGS. 23 and 24, each adhesive filling recess 1118 (first recess 1118A, second recess 1118B) is located inside the notch 4616, and The adhesive filling recess 1118 is exposed to the outside of the wall 4606 through a notch 4616.
Then, as shown in FIG. 25, the adhesive filling recess 1118 and the wall surface 4606A of the wall portion 4606 that borders each notch 4616 of the holder 46, that is, the first recess portion 1118A and the wall surface 4606A of the wall portion 4606 are covered. The UV curable adhesive S is filled with the adhesive application syringe or the like over the second recess 1118B and the wall surface 4606A of the wall portion 4606. In the figure, symbol H indicates solder for connecting the electrode 129A of the flexible substrate 129 and the electrode 1114 of the imaging device 11.
At this time, since the notches 4616 are formed open at the tip of the wall portion 4606, each notch 4616 is opened upward by being inverted, and thus the bonding work is performed in the inverted state. Thus, the UV curable adhesive S can be easily and reliably filled.
Since the UV curable adhesive S has a viscosity and a semi-fluid before curing, the filled UV curable adhesive S has a wall surface that borders each of the adhesive filling recesses 1118 and each notch 4616. In this embodiment, the UV curable adhesive S is also held between the wall surface 1120 of each adhesive filling recess 1118 and the wall surface 4606A that borders each notch 4616. In addition, it is also held between the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102.
Next, the UV curable adhesive S held between each adhesive filling recess 1118 and the wall surface 4606A bordering each notch 4616 is irradiated with ultraviolet rays and cured. At this time, each adhesive filling recess 1118 is exposed to the outside of the wall portion 1110 of the holder 46 through the notch 4616, and as shown in FIG. 25, the side surface 10 of the package 1102 and the holder 46. Since the wall portion 1110 is formed so as to be open upward, the filled UV curable adhesive S can be easily and reliably irradiated with ultraviolet rays.
Thereby, the image sensor 11 and the holder 46 are bonded in a positioned state.

Next, the seal rubber 56, the light shielding sheet 57, the filter 60, and the pressing member 62 are assembled to the holder 46 to which the image pickup device 11 is bonded in this way.
That is, as shown in FIG. 25, the frame-shaped seal rubber 56, the seal rubber 56, and the light shielding sheet 58 are placed in this order around the opening 4604 of the surface 4610 of the plate portion 4608 of the holder 46, and then the pressing member 62 Is attached to the plate portion 4608.
In this way, the image sensor unit 54 is assembled.

The image sensor unit 54 is attached to the image sensor attachment portion 1205 of the lens barrel 12 by inserting the insertion piece 4614 of the holder 46 into the opening 1204B of the lens barrel 12 and the image sensor unit 54 in the attachment seat 1204C of the lens barrel 12. The mounting portion 4624 is brought into contact, and the screw inserted through the screw insertion hole 4622 is screwed into the screw hole of the mounting seat 1204E and fastened.
The image sensor mounting portion 1205 is provided with a knock pin (not shown). When the insertion piece 4614 of the holder 46 is inserted into the opening 1204B of the lens barrel 12, the knock pin is positioned in the positioning hole 4620 of the mounting portion 4624. The image pickup device unit 54 is positioned by being inserted into.

According to this comparative example, the adhesive filling recesses 1118 are formed on the mutually facing side surfaces 1110 of the package 1102 of the image sensor 11, and the package 1102 is interposed between the pair of wall portions 4606 provided on the holder 46. The side surfaces 1102 of the package 1102 and the pair of wall portions 4606 are fixed by bonding with the adhesive S filled in the adhesive filling recesses 1118.
Therefore, by using the adhesive filling recess 1118 formed in the package 1102, the area of the package 1102 of the imaging element 11 bonded by the adhesive S can be secured, and the package 1102 is reduced with the downsizing of the package 1102. Even when the area of the side surface 1110 of the lens 11 is reduced, it is advantageous in improving the adhesive strength between the image sensor 11 and the holder 46, and the lens barrel and the image pickup apparatus are secured while ensuring the adhesive strength of the image sensor 11. This is advantageous in reducing the size of the device.
By improving the adhesive strength between the image sensor 11 and the holder 46 in this manner, for example, it is possible to prevent peeling of the adhesive due to temperature creep caused by a difference in thermal expansion coefficient between the image sensor 11 and the holder 46. But it is advantageous.
In this comparative example, the adhesive filling recess 1118 has a length extending in the thickness direction of the package 1102, and at least the surface 1106 side of both ends of the adhesive filling recess 1118 in the length direction. Since one end in the length direction of the adhesive filling recess 1118 is closed by forming the wall surface 1120 at the end located at the position of the image sensor 11, the gap between the image sensor 11 and the holder 46 in the thickness direction of the image sensor 11 is blocked. Even if forces in directions away from each other are applied, the adhesive S is adhered to the wall surface 1120 of the adhesive filling recess 1118, which is more advantageous in improving the adhesive strength.
Further, in this comparative example, the package 1102 of the image sensor 11 has a rectangular plate shape, and the adhesive filling recess 1118 is provided on the side surface 1110 located on the short side of the pair, and the pair of side surfaces 1110 is provided. The wall portion 4616 of the holder 46 is provided so as to be sandwiched, and the adhesive filling recess 1118 on the side surface 1110 located on the short side and the pair of wall portions 4616 are bonded with the adhesive S.
Therefore, it is not necessary to secure a space for positioning the adhesive S on the pair of side surfaces 1110 located on the long side among the side surfaces 1110 of the image sensor 11, and thus the length occupied by the package 1102 of the image sensor 11. This is advantageous in reducing the dimension in the direction orthogonal to the side (short side direction).
For this reason, among the dimensions of the lens barrel, the dimension along the short side direction of the imaging element 11 can be reduced, which is advantageous in reducing the size and thickness of the lens barrel and the imaging device.
In Comparative Example 1, the electrode forming recess 1116 has been described with respect to the portion where the conductive plating layer is applied, that is, the case where the electrode 1114 is not filled with the adhesive S. However, the electrode 1114 is a flexible substrate 129. Of course, the electrode portion 1114 of the electrode forming recess 1116 may be filled with the adhesive S to be bonded in a soldered state.

Next, Comparative Example 2 will be described.
The comparative example 2 is different from the comparative example 1 in the shape of the adhesive filling recess 1118 of the image sensor 11, and the other configuration is the same as that of the comparative example 1.
27 is a perspective view showing the image sensor unit 54 of Comparative Example 2 turned upside down, FIGS. 28 and 29 are perspective views of the adhesive filling concave portion of the image sensor 11, and FIG. 30A is the image sensor unit. 54B is a cross-sectional view of FIG. 31A, FIG. 31A is a side view of the bonding location of the image sensor unit 54, and FIG. 31B is a cross-sectional view of FIG. . In addition, below, the same code | symbol is attached | subjected and demonstrated to the location and member similar to the comparative example 1.
As shown in FIG. 27, similarly to Comparative Example 1, the package 1102 has a flat rectangular plate shape, and has a front surface 1106 and a back surface 1108 formed on both sides in the thickness direction, and a periphery of the front surface 1106 and the back surface 1108. The imaging unit 1104 is housed and held inside the package 1102.
As shown in FIG. 27, a plurality of electrodes 1114 are formed across one set of two sides facing each other on the back surface 1108 of the package 1102 and a set of side surfaces 1110 following this side.
As shown in FIG. 28, a plurality of electrode forming recesses 1116 are formed on the side surface 1110, and each electrode 1114 is embedded in a position near the back surface 1108 of each electrode forming recess 1116 as shown by hatching. Since each electrode 1114 is made of a conductive material and is formed by embedding a conductive material, unlike Comparative Example 1, the side surface 1110 is positioned almost on the same plane as the side surface 1110, and the back surface 1108 is It is located on substantially the same plane as the back surface 1108.
In one set of side surfaces 1110, a plurality of adhesive filling recesses 1118 are formed at intervals in the extending direction of the side surfaces 1110.
As shown in FIG. 28, the adhesive filling recess 1118 includes a first recess 1118A having a length extending from the back surface 1108 to the front of the front surface 1106, and a back surface 1108 and a front surface 1106 as shown in FIG. And a second recess 1118B having a length extending therebetween.

As shown in FIGS. 29, 30A, and 30B, the first recess 1118A has a rectangular cross section, is open on the back surface 1108, and is provided at the end in the length direction located on the front surface 1106 side. It has a wall surface 1120 that closes the first recess 1118A.
As shown in FIGS. 28, 31A, and 31B, the second recess 1118B is formed by the remaining portion of the electrode forming recess 1116 that is not embedded with the conductive material, and has a rectangular cross section. A wall surface 1120 that closes the second recess 1118B is provided at the end in the length direction located on the 1106 side.
Note that the wall surfaces 1120 of the first recess 1118A and the second recess 1118B extend in the direction intersecting the thickness direction of the package 1102 as in the first comparative example, and the thickness of the package 1102 in the second comparative example also. It extends in a direction orthogonal to the direction.
Although not shown, as in Comparative Example 1, a flexible substrate 129 is soldered to the back surface 1108 of the case 1102, and a metal plate 64 is superimposed on the back surface of the flexible substrate 129 and attached with an adhesive or the like. .
In Comparative Example 2, as in Comparative Example 1, the adhesive filling recesses 1118 (first recess 1118A and second recess 1118B) are positioned inside the notch 4616 as shown in FIGS. Each adhesive filling recess 1118 is exposed to the outside of the wall 4606 through a notch 4616.

The image sensor 11 and the holder 46 are bonded in the same manner as in Comparative Example 1.
That is, the adhesive filling recess 1118 and the wall 4606A of the wall 4606 that borders each notch 4616 of the holder 46, that is, the first recess 1118A and the second recess 1118B and the wall 4606A of the wall 4606A. The UV curable adhesive S is filled with a syringe for applying an adhesive.
At this time, since the notches 4616 are formed open at the tip of the wall portion 4606, each notch 4616 is opened upward by being inverted, and thus the bonding work is performed in the inverted state. Thus, the UV curable adhesive S can be easily and reliably filled.
Since the UV curable adhesive S has a viscosity and a semi-fluid before curing, the filled UV curable adhesive S has a wall surface that borders each of the adhesive filling recesses 1118 and each notch 4616. In the second comparative example, the UV curable adhesive S is also in the comparative example 2 in the same manner as in the first comparative example. Between the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102.
Next, the UV curable adhesive S held between each adhesive filling recess 1118 and the wall surface 4606A bordering each notch 4616 is irradiated with ultraviolet rays and cured. At this time, each adhesive filling recess 1118 is exposed to the outside of the wall portion 1110 of the holder 46 through the notch 4616, and between the side surface 10 of the package 1102 and the wall portion 1110 of the holder 46. Is formed so as to be open upward, so that the UV curable adhesive S filled can be easily and reliably irradiated with ultraviolet rays.
Thereby, the image pickup device 11 and the holder 46 are bonded in a positioned state, whereby the image pickup device unit 54 is assembled.
It goes without saying that the same operational effects as those of Comparative Example 1 can be obtained by Comparative Example 2 as well.

Next, the present invention will be described.
The present invention is different from Comparative Examples 1 and 2 in the shape of the adhesive filling recess 1118 of the image sensor 11.
32 is a perspective view showing the image pickup device unit 54 of the present invention turned upside down, FIG. 33A is a side view showing an adhesion portion of the image pickup device unit 54, and FIG. 32B is a sectional view of FIG. is there.
As shown in FIG. 32, similarly to Comparative Example 1, the package 1102 has a flat rectangular plate shape, and has a front surface 1106 and a back surface 1108 formed on both sides in the thickness direction, and a periphery of the front surface 1106 and the back surface 1108. The imaging unit 1104 is housed and held inside the package 1102.
Similarly to Comparative Example 2, a plurality of electrodes 1114 are formed across one set of two sides facing each other on the back surface 1108 of the package 1102 and a set of side surfaces 1110 following this side. .
As shown in FIGS. 32 and 33, an adhesive filling recess 1140 is provided in the extending direction of the one set of side surfaces 1110 on one set of the side surfaces 1110 of the two sets of side surfaces 1110 facing each other of the package 1102. In this embodiment, the adhesive filling recess 1140 is formed so as to extend over the entire region in the extending direction of the set of side surfaces 1110. As shown in FIGS. 33A and 33B, the adhesive filling recess 1140 includes a wall surface 1142 positioned on the front surface 1106 side of the package 1110, a wall surface 1144 positioned on the back surface 1108 side, and these wall surfaces 1142 and 1144. In the present invention , the wall surfaces 1142 and 1144 are orthogonal to the side surface 1110 and the wall surface 1146 is parallel to the side surface 1110.
Also in the present invention , as in Comparative Examples 1 and 2, as shown in FIG. 33, the adhesive filling recess 1140 has a portion passing through the inside of the notch 4616, and the adhesive filling in the notch 4616. The concave portion 1140 is exposed to the outside.

The imaging element 11 and the holder 46 are bonded as follows. That is, the UV curable adhesive S is filled with an adhesive application syringe or the like over the adhesive filling recess 1140 and the wall surface 4606A of the wall portion 4606 that borders each notch 4616 of the holder 46.
At this time, since the notches 4616 are formed open at the tip of the wall portion 4606, each notch 4616 is opened upward by being inverted, and thus the bonding work is performed in the inverted state. Thus, the UV curable adhesive S can be easily and reliably filled.
Since the UV curable adhesive S has a viscosity and a semi-fluid before curing, the filled UV curable adhesive S has a wall surface that borders each adhesive filling recess 1140 and each notch 4616. 4606A, the UV curable adhesive S is formed in each notch 4616 between the wall surfaces 1142, 1144, 1146 of the adhesive filling recess 1140 and the wall surface 4606A bordering each notch 4616. It is also held between the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102.
Next, the UV curable adhesive S held between the adhesive filling recess 1118 and the wall surface 4606A bordering each notch 4616 is irradiated with ultraviolet rays and cured. At this time, each of the adhesive filling recesses 1140 is exposed to the outside of the wall portion 1110 of the holder 46 through the notch 4616, and between the side surface 10 of the package 1102 and the wall portion 1110 of the holder 46. Is formed so as to be open upward, so that the UV curable adhesive S filled can be easily and reliably irradiated with ultraviolet rays.
Thereby, the image pickup device 11 and the holder 46 are bonded in a positioned state, whereby the image pickup device unit 54 is assembled.
It goes without saying that the same operational effects as those of Comparative Examples 1 and 2 can also be achieved by the present invention .

Next, Comparative Example 3 will be described.
The comparative example 3 is different from the conventional one in the shape of the adhesive filling concave portion 1118 of the imaging element 11.
34 is a perspective view showing the image sensor 11 in the comparative example 3 in a vertically inverted state, FIG. 35A is a side view showing an adhesion portion of the image sensor unit 54, and FIG. 34B is a sectional view of FIG. is there.
As shown in FIG. 34, similar to Comparative Example 1, the package 1102 has a flat rectangular plate shape, and has a front surface 1106 and a back surface 1108 formed on both sides in the thickness direction, and a periphery of the front surface 1106 and the back surface 1108. The imaging unit 1104 is housed and held inside the package 1102.
Similarly to Comparative Example 2 and the like, a plurality of electrodes 1114 are formed over one set of two sides facing each other on the back surface 1108 of the package 1102 and a set of side surfaces 1110 following this set of sides. Yes.
As shown in FIGS. 34 and 35, one set of side surfaces 1110 of the two sets of side surfaces 1110 facing each other of the package 1102 has an adhesive filling recess 1150 with the extending direction of the set of side surfaces 1110 and A plurality are formed at intervals with respect to both the extending direction and the direction orthogonal to the extending direction.
In Comparative Example 3 , the adhesive filling recess 1150 is formed by a columnar space opened to the side surface 1110, and has a cylindrical wall surface 1152 and a circular wall surface 1154 connecting the back of the wall surface 1152. is doing.
In Comparative Example 3 , the wall surface 1152 is orthogonal to the side surface 1110, and the wall surface 1154 is parallel to the side wall 1110.
Also in Comparative Example 3, similarly as far, as shown in FIG. 35, the adhesive filled recess 1150 is located inside the notches 4616, each adhesive filling recessed portion 1150 notch 4616 It is exposed to the outside of the wall portion 4606 through.

The imaging element 11 and the holder 46 are bonded as follows. That is, the UV curable adhesive S is filled with an adhesive application syringe or the like over the adhesive filling recess 1150 and the wall surface 4606A of the wall portion 4606 that borders each notch 4616 of the holder 46.
At this time, since the notches 4616 are formed open at the tip of the wall portion 4606, each notch 4616 is opened upward by being inverted, and thus the bonding work is performed in the inverted state. Thus, the UV curable adhesive S can be easily and reliably filled.
Since the UV curable adhesive S has a viscosity and a semi-fluid before curing, the filled UV curable adhesive S has a wall surface that borders each adhesive filling recess 1140 and each notch 4616. 4606A, the UV curable adhesive S is held between the wall surfaces 1152 and 1154 of the adhesive filling recess 1150 and the wall surface 4606A bordering each notch 4616, and the package 1102 It will be in the state hold | maintained also between the wall surface of the wall part 4606 which faces the side surface 1110, and the side surface 1110 of the package 1102.
Next, the UV curable adhesive S held between the adhesive filling recess 1118 and the wall surface 4606A bordering each notch 4616 is irradiated with ultraviolet rays and cured. At this time, each of the adhesive filling recesses 1150 is exposed to the outside of the wall portion 1110 of the holder 46 through the notch 4616, and between the side surface 10 of the package 1102 and the wall portion 1110 of the holder 46. Is formed so as to be open upward, so that the UV curable adhesive S filled can be easily and reliably irradiated with ultraviolet rays.
Thereby, the image pickup device 11 and the holder 46 are bonded in a positioned state, whereby the image pickup device unit 54 is assembled.
It goes without saying that the same operational effects as those obtained so far can be obtained by the comparative example 3 as well.

Until now, the pair of wall portions 4606 of the holder 46 have been provided with notches 4616, and the adhesive filling recesses 1118, 1140, and 1150 are exposed to the outside of the wall portion 4606 through the notches 4616, and the adhesive agent. Although the description has been given of the case where the adhesive S filled in the filling recesses 1118, 1140, and 1150 is located over the wall surface 4606A of the wall portion 4606 that borders the notch 4616 from the adhesive filling recesses 1118, 1140, and 1150, As a modification, the following configuration may be used.
For example, as shown in FIG. 36, the entire area of the adhesive filling recess 1160 formed on the opposite side surfaces 1110 of the package 1102 faces the wall portion 4606 of the holder 46, that is, the adhesive filling recess 1160 is a wall portion. 4606, the adhesive S filled in the adhesive filling recess 1160 is located from the adhesive filling recess 1160 to the wall portion 4606 of the holder 46, and the adhesive S is It is also held between the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102.
Alternatively, as shown in FIG. 37, the wall portion 4606 is positioned in the middle of the adhesive filling recess 1170 in the length direction, and a part of the adhesive filling recess 1170 faces the wall portion 4606 of the holder 46 and remains. Is exposed to the outside of the tip of the wall portion 4606, and the wall portion 4606 has a wall surface 4606B facing the remaining portion thereof and extending in a direction crossing the thickness direction of the package 1102, and is filled with adhesive. The adhesive S filled in the concave portion 1170 is positioned over the wall surface 4606B from the concave portion 1170 for filling the adhesive, and the adhesive S is formed on the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102. Is also held between.
Further, as shown in FIG. 38, the wall portion 4606 is positioned at substantially the same height as the wall surface 1182 of the adhesive filling recess 1180, and the adhesive filling recess 1180 is exposed to the outside of the wall portion 4606 of the holder 46, The wall portion 4606 has a wall surface 4606C facing the adhesive filling recess 1180 and extending in a direction intersecting the thickness direction of the package 1102, and the adhesive S filled in the adhesive filling recess 1180 is made of an adhesive. The adhesive S is located between the filling recess 1180 and the wall surface 4606C, and is also held between the wall surface of the wall portion 4606 facing the side surface 1110 of the package 1102 and the side surface 1110 of the package 1102.

  The image sensor 11 in the image sensor unit 54 according to the present invention has a flat package 1102 having a front surface 1106 and a back surface 1108 formed on both sides in the thickness direction, and an imaging surface on which a subject image is guided. An image pickup unit 1104 accommodated and held in the package 1102 so that 1112 is positioned on the front surface 1106 of the package 1102, and the package 1102 has side surfaces 1110 that connect the front surface 1106 and the back surface 1108 and face each other. It can be said that a concave portion for filling an adhesive is formed on the opposite side surface 1110.

In addition, the case where a UV curable adhesive is used as the adhesive S has been described so far, but the type of adhesive is not limited to the UV curable adhesive, and various conventionally known adhesives are used. be able to.
Heretofore, a digital still camera has been exemplified as the imaging device, but the present invention is naturally applicable to imaging devices such as video cameras and television cameras.

It is the perspective view which looked at the imaging device of comparative example 1 from the front. It is the perspective view which looked at the imaging device of comparative example 1 from back. It is the perspective view which looked at the imaging device of comparative example 1 from the lower part. It is explanatory drawing explaining the accommodation state of a memory card and a battery. It is a block diagram which shows the control system of an imaging device. It is the perspective view which looked at the lens-barrel 10 from diagonally forward. It is the perspective view which looked at the lens-barrel 10 from diagonally backward. 2 is an exploded perspective view showing a configuration of a part of the lens barrel 10. FIG. 3 is an exploded perspective view showing the remaining configuration of the lens barrel 10. FIG. It is XX sectional drawing of FIG. It is the YY sectional view taken on the line of FIG. 2 is a cross-sectional perspective view of a left portion of the lens barrel 10. FIG. 2 is a cross-sectional perspective view of a right side portion of the lens barrel 10. FIG. FIG. 6 is a cross-sectional view of the first lens barrel divided body 1202. It is a cross-sectional view of the second barrel segment 1204. 3 is a perspective view of a zoom movable lens group 18 and a focus movable lens group 20. FIG. FIG. 10 is a cross-sectional perspective view of a main part of a second barrel segment 1204. FIG. 6 is a cross-sectional view of a first barrel segment 1202, a second barrel segment 1204, and a third barrel segment 1206. It is a perspective view shown in the state where image sensor unit 54 was turned upside down. 4 is a cross-sectional view of the image sensor unit 54. FIG. 3 is a perspective view of a concave portion for filling an adhesive of the image sensor 11. FIG. 3 is a perspective view of a concave portion for filling an adhesive of the image sensor 11. FIG. (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). 4 is a cross-sectional view showing a bonding location of an image sensor unit 54. FIG. 3 is an exploded perspective view of an image sensor unit 54. FIG. It is a perspective view shown in the state where the image sensor unit 54 of comparative example 2 was turned upside down. 3 is a perspective view of a concave portion for filling an adhesive of the image sensor 11. FIG. 3 is a perspective view of a concave portion for filling an adhesive of the image sensor 11. FIG. (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). It is a perspective view shown in the state where the image sensor unit 54 of the present invention was turned upside down. (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). It is a perspective view shown in the state where the image sensor 11 in comparative example 3 was turned upside down. (A) is a side view which shows the adhesion location of the image pick-up element unit 54, (B) is sectional drawing of (A). (A) is a side view which shows the adhesion location of the image pick-up element unit 54 in a modification, (B) is sectional drawing of (A). (A) is a side view which shows the adhesion location of the image pick-up element unit 54 in another modification, (B) is sectional drawing of (A). (A) is a side view which shows the adhesion location of the image pick-up element unit 54 in another modification, (B) is sectional drawing of (A).

DESCRIPTION OF SYMBOLS 10 ... Lens barrel, 11 ... Imaging device, 1102 ... Package, 1104 ... Imaging part, 1110 ... Side face , 1140 ... Recess for adhesive filling, 46 ... Holder, 4606 ... A pair of wall part 4616 ... Notch, 54 ... Imaging device unit, 100 ... Imaging device

Claims (8)

An image sensor unit comprising an image sensor that captures a subject image guided by an optical system and a holder that holds the image sensor,
The image pickup device includes a package formed in a flat shape having a front surface and a back surface formed on both sides in a thickness direction, and an image pickup surface for picking up the subject image positioned on the surface of the package. An imaging unit housed and held in
The package has side surfaces that connect the front and back surfaces and face each other,
Adhesive filling recesses are formed on opposite sides of the package,
The package has a flat rectangular plate shape, the side surfaces of the package facing each other are one set of side surfaces of the two sets of side surfaces of the package facing each other, and the adhesive filling recess is the Formed to extend continuously along the extending direction of one set of side surfaces,
The holder has a pair of wall portions facing each other,
The adhesive filling recess has a portion that passes through the inside of a notch formed in an open shape at the tip of the wall, and is exposed to the outside in the notch.
The holder includes a main body portion provided with an opening for exposing the imaging surface, the pair of wall portions project from the main body portion on both sides of the opening, and the imaging element includes the imaging surface. Is arranged facing the opening,
The imaging element is disposed between the pair of wall portions so that the side surfaces facing each other face each other, and the side surface of the package and the pair of wall portions are formed by an adhesive filled in the adhesive filling recess. Is fixed by bonding,
An image sensor unit characterized by the above.   A part of the concave portion for filling the adhesive faces the wall portion, and the other part of the concave portion is exposed to the outside of the wall portion. The adhesive having a wall surface extending in a direction intersecting the vertical direction and filled in the adhesive filling recess is located from the adhesive filling recess to the wall surface. The imaging element unit according to 1.   The adhesive filling recess is exposed to the outside of the wall, and the wall has a wall surface facing the adhesive filling recess and extending in a direction intersecting the thickness direction of the package. The imaging element unit according to claim 1, wherein the adhesive filled in the filling recess is located across the wall surface from the adhesive filling recess.   The pair of wall portions are provided with notches, the adhesive filling recess is exposed inside the notches, and the adhesive filled in the adhesive filling recess is used for filling the adhesive. The image sensor unit according to claim 1, wherein the image sensor unit is located over a wall surface of the wall portion that borders the notch from a recess.   The adhesive filling recess has a length extending in the thickness direction of the package, and a wall surface at least at an end located on the surface side of both ends in the length direction of the adhesive filling recess The imaging element unit according to claim 1, wherein one end in a length direction of the concave portion for filling the adhesive is closed by forming a gap.   The holder includes a main body portion provided with an opening that exposes the imaging surface, the main body portion includes a rectangular frame-shaped plate portion provided with the opening inside thereof, and the pair of wall portions are 2. The image sensor unit according to claim 1, wherein the image sensor is provided so as to protrude from a back surface of the plate portion, and the image sensor is disposed on the back surface of the plate portion with the image pickup surface facing the opening. An optical system provided inside the lens tube for guiding the subject image;
A lens barrel including an image sensor that captures a subject image guided by the optical system and an image sensor unit having a holder that holds the image sensor;
The image pickup device includes a package formed in a flat shape having a front surface and a back surface formed on both sides in a thickness direction, and an image pickup surface for picking up the subject image positioned on the surface of the package. An imaging unit housed and held in
The package has side surfaces that connect the front and back surfaces and face each other,
Adhesive filling recesses are formed on opposite sides of the package,
The package has a flat rectangular plate shape, the side surfaces of the package facing each other are one set of side surfaces of the two sets of side surfaces of the package facing each other, and the adhesive filling recess is the Formed to extend continuously along the extending direction of one set of side surfaces,
The holder has a pair of wall portions facing each other,
The adhesive filling recess has a portion that passes through the inside of a notch formed in an open shape at the tip of the wall, and is exposed to the outside in the notch.
The holder includes a main body portion provided with an opening for exposing the imaging surface, the pair of wall portions project from the main body portion on both sides of the opening, and the imaging element includes the imaging surface. Is arranged facing the opening,
The imaging element is disposed between the pair of wall portions so that the side surfaces facing each other face each other, and the side surface of the package and the pair of wall portions are formed by an adhesive filled in the adhesive filling recess. Is fixed by bonding,
A lens barrel characterized by that. An optical system that is provided inside the barrel and guides the subject image, and an image sensor unit;
The imaging device unit is an imaging device configured to include an imaging device that captures a subject image guided by the optical system, and a holder that holds the imaging device,
The image pickup device includes a package formed in a flat shape having a front surface and a back surface formed on both sides in a thickness direction, and an image pickup surface for picking up the subject image positioned on the surface of the package. An imaging unit housed and held in
The package has side surfaces that connect the front and back surfaces and face each other,
Adhesive filling recesses are formed on opposite sides of the package,
The package has a flat rectangular plate shape, the side surfaces of the package facing each other are one set of side surfaces of the two sets of side surfaces of the package facing each other, and the adhesive filling recess is the Formed to extend continuously along the extending direction of one set of side surfaces,
The holder has a pair of wall portions facing each other,
The adhesive filling recess has a portion that passes through the inside of a notch formed in an open shape at the tip of the wall, and is exposed to the outside in the notch.
The holder includes a main body portion provided with an opening for exposing the imaging surface, the pair of wall portions project from the main body portion on both sides of the opening, and the imaging element includes the imaging surface. Is arranged facing the opening,
The imaging element is disposed between the pair of wall portions so that the side surfaces facing each other face each other, and the side surface of the package and the pair of wall portions are formed by an adhesive filled in the adhesive filling recess. Is fixed by bonding,
An imaging apparatus characterized by that.

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