WO2013038607A1

WO2013038607A1 - Imaging device

Info

Publication number: WO2013038607A1
Application number: PCT/JP2012/005411
Authority: WO
Inventors: 大西　智; 森田　光彦; 啓俊小西
Original assignee: コニカミノルタアドバンストレイヤー株式会社
Priority date: 2011-09-15
Filing date: 2012-08-28
Publication date: 2013-03-21
Also published as: JPWO2013038607A1; TW201324026A

Abstract

In this imaging device (1), a cover (8) having side walls (81) formed by folding a front wall (82b) at a substantially right angle is mounted on the imaging device body such that the side walls (81) cover the outer periphery of the imaging device body, and the imaging device body is provided with an outer peripheral receiving piece (54) and a fitting groove (53) as a spread prevention part for restricting an end part (81a) of a mounted side wall (81) from spreading outward. Since the imaging device (1) thus configured is provided with the outer peripheral receiving piece (54) and the fitting groove (53) as the spread prevention part, it is possible to reduce the risk of the end part (81a) of the side wall (81) of the cover (8) spreading outward from the imaging device body, even when, for example, external force is applied to the cover (8).

Description

Imaging device

The present invention relates to a small-sized imaging device that is suitably used for a mobile phone or the like.

In an imaging apparatus suitably used for portable devices such as mobile phones, PDAs (Personal Digital Assistants), and notebook personal computers, a cover that covers the outer peripheral side of the imaging apparatus main body is often provided. Such a cover plays a role in preventing electromagnetic noise generated in the imaging apparatus main body from leaking outside, and the material thereof is metal. As an imaging apparatus provided with such a cover, for example, there is a cover of an optical unit disclosed in Patent Document 1.

The cover disclosed in Patent Document 1 is a box-shaped member, and four side walls of the cover are connected. However, since the drawing process is generally used to form such a box shape, the workability is extremely deteriorated.

Therefore, recently, there are an increasing number of covers in which four side walls are formed by bending a plate piece to form a box shape as a whole.

However, as shown in FIG. 16 (A), the four side walls 311 in the cover 301 formed by bending a plate piece are separated from each other, and each side wall 311 is a cover that has been drawn as described above. Compared to, it is easy to bend and deform. Therefore, for example, as shown in FIG. 16B, when an external force P is applied to the cover 301 attached to the imaging apparatus main body 300a, the side wall 311 of the cover 301 is bent and the end 311a of the side wall 311 as shown by the one-dot chain line. May escape to the outer peripheral side of the imaging apparatus main body 300a and spread. As described above, when the end 311a of the side wall 311 of the cover 301 spreads to the outer peripheral side of the imaging device main body 300a, the end 311a protrudes to the outer peripheral side of the imaging device main body 300a, and the imaging device 300 is incorporated. There is a risk of interference with other components in a device such as a mobile phone.

In the above case, it is also conceivable that the end 311a and the imaging device main body 300 are fixed with an adhesive so that the end 311a of the side wall 311 of the cover 301 does not spread. However, in that case, the process of fixing with an adhesive increases and the assemblability deteriorates.

JP 2010-156814 A

The present invention has been made in view of the above-described circumstances, and its object is to reduce the possibility that the end of the side wall of the cover spreads outside the imaging apparatus main body even when an external force is applied to the cover. An imaging device that can be used is provided.

In the imaging apparatus according to the present invention, a cover having a side wall bent at a substantially right angle from the front wall is attached to the imaging apparatus body so that the side wall covers the outer periphery of the imaging apparatus body, and the imaging apparatus body Includes a spread preventing portion that restricts the end of the attached side wall from spreading to the outer peripheral side. Since such an image pickup apparatus includes the spread preventing portion, even when an external force is applied to the cover, it is possible to reduce the possibility that the end of the side wall of the cover spreads outside the image pickup apparatus main body.

The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

1 is a perspective view of an imaging device according to a first embodiment of the present invention. It is a disassembled perspective view of the imaging device shown in FIG. It is a front view of the imaging device shown in FIG. It is a side view of the imaging device shown in FIG. It is a front view of the 2nd housing | casing in the imaging device shown in FIG. FIG. 6 is a sectional view taken along line VI-VI shown in FIG. 5 in the second housing shown in FIG. 5. FIG. 4 is a cross-sectional view taken along line VII-VII shown in FIG. 3 in the imaging device shown in FIG. It is sectional drawing of the imaging device in 2nd Embodiment of this invention. It is a perspective view of the sensor holding member in the imaging device shown in FIG. It is a front view of the sensor holding member shown in FIG. FIG. 11 is a cross-sectional view of the sensor holding member shown in FIG. 9 taken along line XX shown in FIG. It is sectional drawing of the imaging device in 3rd Embodiment of this invention. It is a perspective view of the cover in the imaging device shown in FIG. It is a front view of the sensor holding member in the imaging device shown in FIG. FIG. 15 is a cross-sectional view of the sensor holding member shown in FIG. 14 taken along the line XIV-XIV shown in FIG. (A) is a perspective view of a conventional imaging device, and (B) is a cross-sectional view of the conventional imaging device of FIG.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably.

(First embodiment)
The imaging device 1 of the first embodiment is preferably mounted and used in portable devices such as a mobile phone terminal device, a PDA (Personal Digital Assistants), and a notebook personal computer. The imaging device 1 of the first embodiment includes an imaging device main body 10 and a cover 8 as shown in FIGS. 1 and 2, for example.

The imaging apparatus main body 10 is an apparatus that captures light (optical image) from an object (subject) with the imaging element 71 and generates an electrical signal corresponding to the optical image, and is, for example, a moving lens unit. A first group unit 2, a second group unit 3 which is a fixed lens unit, an actuator (ultrasonic linear actuator) 4 for driving the first group unit 2 in the optical axis direction, and these first group unit 2 and second group.

Housings

51 and 52 that house the unit 3 and the actuator 4, and a sensor holding member 7 that holds the image sensor 71 are provided.

As shown in FIG. 7, the first group unit 2 includes first to third

optical elements

21, 22, and 23 that constitute a moving lens group, and each of the first to third

optical elements

21, 22, and 23. There are provided

light shielding plates

24, 24 and a first group unit holder 25 holding first to third

optical elements

21, 22, 23. Each of the first to third

optical elements

21, 22, and 23 is, for example, a plastic lens.

As shown in FIGS. 2 and 7, the first group unit holder 25 holds the first to third

optical elements

21, 22, 23 on the inner peripheral side, and the outer peripheral side of the first group unit holder 25. Thus, although not shown, it is slidably engaged with a drive shaft 42 of an actuator 4 described later with a predetermined frictional force.

The second group unit 3 includes fourth and fifth

optical elements

31 and 32 constituting a fixed lens group as shown in FIG. These fourth and fifth

optical elements

31 and 32 are, for example, plastic lenses, similarly to the first to third

optical elements

21, 22 and 23 of the first group unit 2.

The second group unit 3 is held in a second housing 52, which will be described later, so as not to move, and is disposed on the rear side (image side) of the first group unit 2. That is, the first group unit 2 and the second group unit 3 are arranged in order from the object side to the image side.

The first group unit 2 and the second group unit 3 constitute an imaging optical system that forms an optical image of a subject on the light receiving surface of the imaging element 71, and the first group unit 2 is an actuator. By moving along the optical axis direction by 4, focusing is performed.

The actuator 4 is a device that constitutes a drive mechanism that moves the first group unit 2 including the first to third

optical elements

21, 22, and 23 along the optical axis direction. As shown in FIG. 2, the actuator 4 includes a piezoelectric element 41 that is an electromechanical conversion element that converts electrical energy into mechanical energy and expands and contracts in the axial direction, and a drive shaft 42 connected to one end of the piezoelectric element 41. And a weight 43 connected to the other end of the piezoelectric element 41.

The weight 43 is a member for generating mainly displacement on the drive shaft 42 side due to expansion and contraction of the piezoelectric element 41. In this embodiment, the weight 43 is a columnar member formed so that the outer diameter protrudes from the outer periphery of the piezoelectric element 41 over the entire periphery in the outer peripheral direction.

In addition, this weight 43 may be abbreviate | omitted when the structure which exhibits the function similar to the function of the weight 43 is used by the other end of the piezoelectric element 41 being attached to the housing | casing 5, etc.

The piezoelectric element 41 is an element in which a plurality of piezoelectric layers are stacked. As shown in FIG. 2, electrodes of each piezoelectric layer are drawn out on a pair of side surfaces. The electrodes on these side surfaces are connected to

external connection terminals

46 and 47 via

individual lead wires

44 and 45, respectively. Although not shown, the tips of the

external connection terminals

46 and 47 are soldered to a printed circuit board on the terminal device side of the cellular phone or fitted into a connector mounted on the printed circuit board.

The drive shaft 42 is a columnar member, for example, a columnar member. A first group unit holder 25 of the first group unit 2 is slidably engaged with the drive shaft 42 with a predetermined frictional force via an L-shaped spring member 6 shown in FIG. .

In the actuator 4 configured as described above, the piezoelectric element 41 vibrates in the axial direction with the application of voltage, and the drive shaft 42 reciprocates due to the vibration, and the first group unit 2 moves in the optical axis direction due to the reciprocating movement. Moving.

More specifically, in this actuator 4, when a rectangular wave having a predetermined duty ratio is applied to the piezoelectric element 41, the displacement of the piezoelectric element 41 becomes a triangular wave, and when the amplitude is increased (expanded) by changing the duty ratio of the rectangular wave. ) And triangular waves with different slopes are generated when descending (when contracting). The drive mechanism of the actuator 4 utilizes this.

For example, by slowly extending the drive shaft 42, the first group unit 2 that is frictionally engaged with the drive shaft 42 also moves in accordance with the extension, and instantly exceeds the predetermined friction force. When the drive shaft 42 is contracted, the first group unit 2 is left as it is. The second group unit 2 can be moved in the axial direction of the drive shaft 42 by repeatedly performing such vibration in the axial direction of the drive shaft 42.

The housing includes two of a first housing 51 and a second housing 52 disposed on the rear side (image side) of the first housing 51.

The second casing 52 is formed of a synthetic resin and is a cylindrical body having a rectangular outer periphery. As shown in FIGS. 5 to 7, the second housing 52 includes a second housing body 50 and a spread preventing portion that prevents the end portion 81 a of the side wall 81 of the cover 8 from spreading outward (outward). As an insertion groove 53 and an outer periphery receiving piece 54.

The second housing body 50 includes a unit holding portion 52d that holds the second group unit 3 on the inner peripheral side. Further, the second housing body 50 includes an actuator holding portion 52e that houses the weight 43 of the actuator 4 and holds it via an adhesive or the like outside the diameter of the unit holding portion 52d.

The second casing body 50 includes first to fourth outer walls 52a. Each of the first to fourth outer walls 52a includes a locking recess 52c (see FIGS. 6 and 7) for locking the cover 8. The locking recess 52c is formed by being recessed from each of the outer surfaces of the first to fourth outer walls 52a.

Further, each of the first to fourth outer walls 52a is provided with a cover end receiving portion 52b for receiving the end portion of the cover 8.

The fitting groove 53 and the outer periphery receiving piece 54 are formed in each of the cover end receiving portions 52b. The fitting groove 53 and the outer periphery receiving piece 54 are formed in the same shape. For this reason, below, as an example, the fitting groove 53 and the outer periphery receiving piece 54 formed in the cover end receiving portion 52b of the first outer wall 52a will be described.

As shown in FIG. 6, the cover end receiving portion 52b is a projecting piece-like member projecting outward from the first outer wall 52a. The fitting groove 53 is a concave groove formed in the front surface 52f of the cover end receiving portion 52b. More specifically, the fitting groove 53 has a predetermined depth in the front-rear direction from the front surface 52f of the cover end receiving portion 52b and has a groove width such that the end of the cover 8 fits in. It is formed on the front surface 52f of the receiving portion 52b. The outer periphery receiving piece 54 is a protruding piece-like member formed on the cover end receiving portion 52b so as to protrude forward by a predetermined amount from the front surface 52f of the cover end receiving portion 52b on the outer peripheral side of the fitting groove 53. It is. The outer periphery receiving piece 54 is formed continuously with one side wall of the fitting groove 53. That is, the cover end receiving portion 52b, the fitting groove 53, and the outer periphery receiving piece 54 are integrally formed, and the cover end receiving portion 52b and the outer periphery receiving piece 54 are formed outward from the first outer wall 52a. The protrusion is a member having a substantially L-shaped cross section, and the fitting groove 53 is formed as a concave groove on the front surface 52f of the member having a substantially L-shaped cross section.

The first casing 51 is made of synthetic resin, and as shown in FIG. 2, the outer periphery is a cylindrical body having a quadrangular shape. The first housing 51 includes four side walls 51b extending rearward from the front wall 51a, and the side walls 51b can accommodate a part of the first group unit 2 and the actuator 4 therein. It has become.

Further, two of the side walls 51b facing each other are provided with locking holes 51c for locking to the second housing 52 (only one appears in FIG. 2).

Also, an opening 51d is formed in the front wall 51a so that the first group unit 2 disposed in the first housing 51 faces the outside. In addition, a hole 51e for inserting the tip end portion of the drive shaft 42 of the actuator 4 is provided at one corner on the outer peripheral side of the opening 51d in the front wall 51a.

The first casing 51 is disposed on the front side of the second casing 52 in a state where the first group unit 2 is engaged with the drive shaft 42 of the actuator 4 held by the second casing 52. The In this state, the locking hole 51 c is locked to the first casing locking protrusion 52 c provided in the second casing 52, whereby the first casing 51 and the second casing 52 are locked. And are connected.

Next, the sensor holding member 7 will be described. The sensor holding member 7 is a member that holds the image sensor 71, and is a rectangular plate-shaped body made of synthetic resin as shown in FIG.

Then, as shown in FIG. 7, the sensor holding member 7 holds the image sensor 71 on the rear surface side by a fixing means such as an adhesive, and in this state, the adhesive etc. on the rear surface of the second housing 52. It is fixedly attached by the fixing means. Therefore, in this state, the image sensor 71 is disposed on the rear side of the second group unit 3.

In this embodiment, the sensor holding member 7 holds an infrared cut filter (IRCF) 72 shown in FIG. The image sensor 71 includes a CCD type or CMOS type image sensor.

Next, the cover 8 will be described. The cover 8 is a member that mainly serves to prevent electromagnetic noise from leaking outside. The cover 8 of this embodiment is formed by metal plate processing of a metal flat plate. As shown in FIG. 1 and FIG. 2, a front wall 82b having an opening 82a and an outer periphery having a rectangular shape in front view, First to fourth side walls 81 connected to the four sides of the wall 82b are provided.

The first to fourth side walls 81 are formed by bending and molding four pieces of a substantially cross-shaped metal flat plate at a substantially right angle. Each of the first to fourth side walls 81 formed in this manner has elasticity, and when an external force is applied, the end 81a bends to the inner peripheral side and the outer peripheral side.

Further, as shown in FIG. 3, the first to fourth side walls 81 have an outer distance L1 between the first side wall 81 and the third side wall 81 facing each other, so that It is set to be substantially the same as the inner distance L3 between the two outer peripheral receiving pieces 54 facing each other. The outer distance L2 between the second side wall 81 and the fourth side wall 81 facing each other is set to be substantially the same as the inner distance L4 between the two outer peripheral receiving pieces 54 facing each other in the second casing 52. Yes.

Further, the cover 8 includes a storage portion 82 inside, and the first housing 51 and the second housing 52 can be stored in the storage portion 82.

The cover 8 has a locking claw as a locking projection that is detachably locked to the locking recess 54 of the second housing 52 at each end 81a of the first to fourth side walls 81. 81c.

The locking claw 81c is set so as to enter the locking recess 55 and move back and forth in the locking recess 55, and is locked as the cover 8 moves forward (object side) with respect to the second housing 52. The claw 81c can be brought into contact with and locked by the inner wall surface 55a of the locking recess 55.

Such a cover 8 is disposed so as to cover the outer periphery of the imaging apparatus main body 10. More specifically, as described above, the first housing 51 and the second housing 52 are connected to each other, and the sensor holding member 7 is attached to the second housing 52. The imaging apparatus main body 10 in the assembled state is pushed into the insertion port provided on the rear end side of the side wall 81 of the cover 8 from the first housing 51 side.

Thereby, the locking claw 81c of the cover 8 is elastically deformed, and the imaging device main body 10 is put into the storage portion 82 of the cover 8. When the locking claw 81c of the cover 8 matches the locking recess 54 of the second housing 52, the locking claw 81c of the cover 8 enters the locking recess 54 due to its elasticity.

Then, as shown in FIG. 7, the end portion 81 a of the side wall 81 of the cover 8 is inserted into the insertion groove 53 of the second housing 52. In this state, the outer peripheral receiving piece 54 is disposed on the outer peripheral side of the end portion 81a of the side wall 81 of the cover 8, and the first casing 51 and the second casing 52 of the imaging apparatus main body 10 are The cover 8 is stored in the storage portion 82.

In this embodiment, the locking claw 81c and the inner wall surface 55a of the locking recess 55 are separated by a predetermined distance in this state. The distance L5 from the front end surface of the locking claw 81c to the inner wall surface 55a of the locking recess 55 facing the locking claw 81c is set shorter than the overlapping length L6 where the outer peripheral receiving piece 54 and the side wall 81 of the cover 8 overlap. Has been. In this way, the outer peripheral receiving piece 54 and the side wall 81 of the cover 8 overlap with each other so that the outer peripheral receiving piece 54 is in contact with the inner wall surface 55 a of the engaging concave portion 55 and locked. It can prevent spreading to the outer peripheral side.

The sensor holding member 7 may be attached to the second housing 52 after the cover 8 is attached.

In the imaging device 10 configured as described above, the end portion 81 a of the cover 8 is in the fitting groove 53 of the second housing 52, and the outer peripheral receiving piece 54 is connected to the end portion 81 a of the side wall 81 of the cover 8. Since it is disposed on the outer peripheral side, for example, even when an external force is applied to the cover 8, it is possible to prevent the end portion 81a of the cover 8 from escaping to the outer peripheral side and spreading.

As a result, the end portion 81a of the cover 8 is prevented from projecting to the outer peripheral side of the imaging device main body 10, and when the imaging device 10 is mounted on a device such as a mobile phone, the cover 8 of the imaging device 10 is in a different state. Contact with the member is prevented.

In addition, since the insertion groove 53 and the outer periphery receiving piece 54 are formed in the second housing 52 made of synthetic resin, the imaging device 10 of the first embodiment integrally inserts the insertion groove when the second housing 52 is formed. 53 and the outer periphery receiving piece 54 can be formed. For this reason, the imaging device 10 of the first embodiment is easy to form.

In addition, in 1st Embodiment, although the spread prevention part is comprised from the insertion groove | channel 53 and the outer periphery receiving piece 54, it is not restricted to the thing of this form, It can change suitably. For example, the spread preventing portion may be configured by only one of the insertion groove 53 and the outer periphery receiving piece 54, and for example, the insertion groove 53 is formed on each of a pair of sides facing each other in one of the four pieces. The outer peripheral receiving piece 54 may be provided on each of a pair of sides facing each other on the other of the four pieces, and can be changed as appropriate.

(Second Embodiment)
Next, the imaging device 100 according to the second embodiment will be described. In the first embodiment, the insertion groove 53 and the outer periphery receiving piece 54 as the spread preventing portion are provided in the second housing 52, but in this second embodiment, the spread preventing portion is provided in the sensor holding member 107. It has been.

More specifically, as shown in FIG. 8, the second housing 152 of the second embodiment does not have the cover end receiving portion 52b provided in the first embodiment, and the outer periphery thereof is covered. 8 is formed inside the storage portion 82 so as to be stored in the storage portion 82.

On the other hand, as shown in FIGS. 8 to 11, the sensor holding member 107 according to the second embodiment has protruding piece-shaped spread preventing portions protruding forward from the front surface at four locations on the outer peripheral side of the front surface of the sensor holding member 107. The outer periphery receiving piece 154 is provided.

These outer periphery receiving pieces 154 are set such that the inner distance between two opposing surfaces is the same as the outer distance between the two opposing outer walls 81 of the corresponding cover 8.

Then, in a state where the sensor holding member 107 is attached to the second casing 152, an insertion groove 153 into which the cover 108 is inserted is formed between the outer periphery receiving piece 154 and the outer periphery of the second casing 152. It has become so. The rest of the configuration is the same as that of the first embodiment, and a description thereof is omitted here.

In the second embodiment configured as described above, the end portion 18a of the cover 8 is disposed inside the outer periphery receiving piece 154 in a state where the cover 8 is mounted on the imaging apparatus main body.

Therefore, the imaging apparatus 100 according to the second embodiment can also prevent the end portion 81a of the cover 8 from escaping to the outer peripheral side even when an external force is applied to the cover 8, for example.

Since the outer periphery receiving piece 154 is formed on the sensor holding member 107 made of synthetic resin, the imaging device 100 of the second embodiment forms the outer periphery receiving piece 154 integrally when the sensor holding member 107 is formed. Can do. For this reason, the imaging device 100 of the second embodiment is easy to form.

In the example shown in FIGS. 8 to 11, the outer periphery receiving pieces 154 are provided at four locations on four sides, but are provided over the entire outer periphery that protrudes forward from the front surface of the sensor holding member 107. Alternatively, it may be a substantially rectangular annular projecting member.

(Third embodiment)
Next, the imaging device 200 according to the third embodiment will be described. The spread preventing portion of the third embodiment is provided on the sensor holding member 207 (see FIG. 14), similarly to the spread preventing portion of the second embodiment. However, in the third embodiment, the spread preventing portion is fitted. The groove 253 is configured.

More specifically, as shown in FIG. 13, each of the four side walls 281 of the cover 208 of the third embodiment includes a groove insertion piece 282 at the end.

14 and 15, the sensor holding member 207 includes a fitting groove 253 for fitting the groove insertion piece 282 at a position corresponding to the groove insertion piece 282 of the cover 208 on the front surface. The rest of the configuration is the same as that of the second embodiment, and a description thereof is omitted here.

In the third embodiment configured as described above, the groove insertion piece 282 of the side wall 281 of the cover 208 is disposed in the fitting groove 253 in a state where the cover 208 is attached to the imaging apparatus main body.

Therefore, the imaging apparatus 200 of the third embodiment can also prevent the end portion 281a of the cover 208 from escaping to the outer peripheral side even when an external force is applied to the cover 208, for example.

Further, since the fitting groove 253 is formed in the sensor holding member 207 made of synthetic resin, the imaging device 200 of the third embodiment can integrally form the fitting groove 253 when the sensor holding member 207 is formed. . For this reason, the imaging device 200 of the third embodiment can be easily formed.

In the example shown in FIGS. 12 to 15, the insertion grooves 253 are provided at four locations on four sides. It may be a substantially rectangular annular recess formed in this manner.

Moreover, in the said 2nd Embodiment, it comprised from the outer periphery receiving piece 154 as a spread prevention part, and in the said 3rd Embodiment, it comprised from the insertion groove | channel 253 as a spread prevention part, but it is not restricted to the thing of this form, A spread prevention Both the fitting groove and the outer periphery receiving piece may be formed on the sensor holding member as the part, and can be changed as appropriate.

In the first embodiment, the spread prevention unit is provided in the second housing. In the second and third embodiments, the spread prevention unit is provided in the

sensor holding members

107 and 207. The spread prevention unit may be provided in both the second housing and the sensor holding member, and can be changed as appropriate.

This specification discloses various modes of technology as described above, and the main technologies are summarized below.

An imaging apparatus according to an aspect includes an imaging apparatus main body and a cover having a rectangular front wall and a side wall, and the cover is attached to the imaging apparatus main body so that the side wall covers an outer periphery of the imaging apparatus main body. The side wall is bent and formed at a substantially right angle from the front wall, and the image pickup apparatus main body has a spread preventing portion that restricts an end of the mounted side wall from spreading outward (outward). I have.

In such an imaging apparatus, for example, even when an external force is applied to the cover mounted on the imaging apparatus main body, the cover is bent by the spread prevention part, and the end of the side wall of the cover escapes to the outer peripheral side of the imaging apparatus main body and spreads. This can be prevented. As a result, for example, it is possible to reduce the possibility that the imaging device interferes with other components in a device such as a mobile phone in which the imaging device is incorporated. For this reason, an imaging device with high reliability is provided.

In another aspect, in the above-described imaging device, the imaging device main body includes a housing that holds a lens, and the spread prevention portion is provided in the housing, and an end portion of the attached side wall. Is provided with an outer periphery receiving piece that regulates from the outer periphery side.

In such an imaging apparatus, since the casing of the imaging apparatus main body includes the outer periphery receiving piece, no additional parts are required. Therefore, such an imaging apparatus can prevent an increase in the number of parts as compared with the conventional one, and therefore, the assembling property is not impaired. Further, since there is no need to bond between the cover and the housing, the assemblability is not impaired.

According to another aspect, in the above-described imaging devices, the imaging device main body includes a housing that holds a lens, the spread prevention portion is provided in the housing, and an end of the side wall is fitted. It is equipped with an insertion groove.

In such an imaging apparatus, since the housing of the imaging apparatus main body includes a fitting groove into which the end of the side wall of the cover is fitted, no additional parts are required. Therefore, such an imaging apparatus can prevent an increase in the number of parts as compared with the conventional one, and therefore, the assembling property is not impaired. Further, since there is no need to bond between the cover and the housing, the assemblability is not impaired.

Further, in another aspect, in the above-described imaging devices, the imaging device body includes a sensor holding member that holds an imaging element, and the spread prevention unit is provided on the sensor holding member and is mounted. The outer periphery receiving piece which controls the edge part of a side wall from an outer peripheral side is provided.

In such an imaging apparatus, since the sensor holding member of the imaging apparatus main body includes the outer periphery receiving piece, no additional parts are required. Therefore, such an imaging apparatus can prevent an increase in the number of parts as compared with the conventional one and does not impair assemblability. Further, since there is no need to bond between the cover and the housing, the assemblability is not impaired.

According to another aspect, in the above-described imaging devices, the imaging device main body includes a sensor holding member that holds an imaging element, and the spread prevention unit is provided in the sensor holding member, and the end of the side wall An insertion groove into which the part is fitted is provided.

According to another aspect, in any of the above-described imaging apparatuses, one of the cover and the housing includes a locking recess, and the other of the cover and the housing includes the locking A locking projection that locks with the recess is provided, and the spread preventing portion is regulated so that the end of the side wall does not spread to the outer peripheral side in a state where the locking projection and the locking recess are locked. is doing.

Such an imaging apparatus can always prevent the end portion of the side wall of the cover from spreading to the outer peripheral side by the spread preventing portion while the cover is locked to the casing. For this reason, a still more reliable imaging device is provided.

According to another aspect, in the above-described imaging devices, the cover is an integrated part formed by bending a metal flat plate, and the front wall has an opening for allowing light from a subject to enter the lens. The side wall includes a flat plate portion that shields electromagnetic noise.

Such an imaging apparatus has good workability because the cover is an integral part formed by bending a metal flat plate. Further, in such an imaging apparatus, since the side wall includes a flat plate portion that shields electromagnetic noise, electromagnetic noise generated in the imaging apparatus main body can be prevented from leaking outside.

This application is based on Japanese Patent Application No. 2011-201487 filed on Sep. 15, 2011, the contents of which are included in this application.

In order to express the present invention, the present invention has been appropriately and fully described above with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Accordingly, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.

According to the present invention, an imaging device can be provided.

Claims

An imaging device body;
A cover having a rectangular front wall and side walls,
The cover is attached to the imaging device body such that the side wall covers the outer periphery of the imaging device body,
The side wall is bent at a substantially right angle from the front wall,
The imaging apparatus main body includes a spread prevention unit that restricts an end of the attached side wall from spreading to an outer peripheral side.
The imaging device body includes a housing that holds a lens,
The imaging apparatus according to claim 1, wherein the spread preventing unit includes an outer periphery receiving piece that is provided in the housing and restricts an end of the attached side wall from an outer periphery side.
The imaging device body includes a housing that holds a lens,
The imaging device according to claim 1, wherein the spread prevention unit includes an insertion groove provided in the housing and into which an end of the side wall is fitted.
The imaging apparatus body includes a sensor holding member that holds an imaging element,
The said spread prevention part is provided in the said sensor holding member, and is provided with the outer periphery receiving piece which regulates the edge part of the said mounted side wall from an outer peripheral side. The imaging apparatus according to item 1.
The imaging apparatus body includes a sensor holding member that holds an imaging element,
The imaging device according to any one of claims 1 to 4, wherein the spread preventing portion includes an insertion groove provided in the sensor holding member and into which an end of the side wall is fitted. .
Either one of the cover and the housing includes a locking recess.
The other of the cover and the housing includes a locking projection that locks with the locking recess,
The said spread prevention part is controlled so that the edge part of the said side wall may not spread to the outer peripheral side in the state in which the said latching convex part and the latching recessed part were latched. The imaging device according to claim 5.
The cover is an integral part formed by bending a metal flat plate,
The front wall includes an opening for allowing light from a subject to enter the lens;
The imaging device according to any one of claims 1 to 6, wherein the side wall includes a flat plate portion that shields electromagnetic noise.