CN109212865B

CN109212865B - Optical unit with shake correction function and method for manufacturing the same

Info

Publication number: CN109212865B
Application number: CN201810642413.8A
Authority: CN
Inventors: 南泽伸司; 五明正人; 须江猛
Original assignee: Nidec Sankyo Corp
Current assignee: Nidec Instruments Corp
Priority date: 2017-06-29
Filing date: 2018-06-21
Publication date: 2021-02-23
Anticipated expiration: 2038-06-21
Also published as: TW201905569A; KR102136104B1; CN109212865A; JP6983550B2; JP2019012117A; KR20190002330A; TWI665509B

Abstract

The invention provides an optical unit with a shake correction function and a manufacturing method thereof, which can make the optical axis of an optical element carried on different members consistent with the center of an image pickup element and can inhibit foreign matters from attaching on the image pickup element. In the optical unit, a cover member including a diaphragm and a cylindrical portion is fixed to an image pickup device in a state where a first inner wall surface and a second inner wall surface of a frame portion are in contact with the image pickup device. The substrate on which the imaging element is mounted is fixed to the rotation base such that the center of the cylindrical portion of the cover member coincides with the rotation center of the rotation base supported by the rotation support mechanism. The lens holder that holds the lens coaxially is fixed to the fixing member in a state where the holder cylinder portion and the cylinder portion are positioned coaxially. A labyrinth seal is formed between a gap between the outer peripheral surface of the cylindrical portion of the cover member and the holder cylindrical portion and between the end plate portion of the cover member and the holder plate portion of the lens holder.

Description

Optical unit with shake correction function and method for manufacturing the same

Technical Field

The present invention relates to an optical unit that performs rolling correction for correcting a shake around an optical axis. The present invention also relates to a method of manufacturing such an optical unit with a shake correction function.

Background

Some optical units mounted on a portable terminal or a mobile body have a shake correction function for suppressing disturbance of a photographed image when the portable terminal or the mobile body is moving. Patent document 1 describes an optical unit with a shake correction function that performs roll correction for correcting a shake around an optical axis by rotating an imaging element with respect to an optical element (lens).

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open No. 2015-210392

Disclosure of Invention

[ problems to be solved by the invention ]

In an optical unit with a shake correction function in which an imaging element is rotated relative to an optical element, the optical element and the imaging element are mounted on separate members, and therefore, there is a problem that it is not easy to align the optical axis of the optical element with the center of the imaging element. Further, since the optical element and the image pickup element are mounted on separate members, foreign matter such as dust may penetrate between the member on which the optical element is mounted and the member on which the image pickup element is mounted, and adhere to the image pickup element.

In view of the above-described problems, an object of the present invention is to provide an optical unit with a shake correction function that can easily align the optical axis of an optical element mounted on a different member with the center of an image pickup element and can suppress foreign matter from adhering to the image pickup element. Another object of the present invention is to provide a method for manufacturing the optical unit with a shake correction function.

[ means for solving problems ]

In order to solve the above problem, an optical unit with a shake correction function according to the present invention includes: an image pickup element; a substrate on which the imaging element is mounted; an optical element disposed on an object side of the image pickup element; a holder member that holds the optical element; a cover member including an end plate portion in which a diaphragm (aperture) that defines a light incident region toward the image pickup element is formed, a tube portion that rises from the end plate portion toward the object side on an outer peripheral side of the diaphragm, and a contact portion that contacts the image pickup element from a direction intersecting an optical axis; a rotating member to which the substrate is fixed; a rotation support mechanism that supports the rotation member to be rotatable around an optical axis of the optical element; a fixed member that supports the rotating member via the rotation support mechanism; and a rolling magnetic drive mechanism that rotates the rotating member; and the cover member is fixed to the image pickup element in a state where the abutting portion abuts against the image pickup element, the substrate is fixed to the rotation member such that a rotation center of the rotation member supported by the rotation support mechanism coincides with an axis of the cylindrical portion of the cover member, the holder member includes a holder cylindrical portion facing an outer peripheral surface of the cylindrical portion with a gap therebetween, and a holder plate portion facing the end plate portion with a gap therebetween on an outer peripheral side of the cylindrical portion, the optical element is coaxially held to the holder cylindrical portion, and the holder member is fixed to the fixing member in a state where the cylindrical portion and the holder cylindrical portion are coaxial.

According to the present invention, the cover member including the diaphragm and the cylindrical portion includes the abutting portion abutting against the image pickup element from the direction intersecting the optical axis, and is fixed to the image pickup element in a state where the abutting portion abuts against the image pickup element. Thus, the cover member and the imaging element are positioned in the direction intersecting the optical axis, and the center of the imaging element can be aligned with the center of the diaphragm and the center of the cylindrical portion. Further, since the substrate is fixed to the rotary member such that the axis of the cylindrical portion of the cover member coincides with the rotation center of the rotary member rotatably supported by the rotation support mechanism, the rotation center of the rotary member can be made to coincide with the center of the imaging element. Further, since the holder member is fixed to the fixing member in a state where the holder cylindrical portion that holds the optical element coaxially and the cylindrical portion of the cover member are positioned coaxially, the center of the optical element can be made to coincide with the center of the image pickup element. Further, since the cylindrical portion of the cap member and the holder cylindrical portion of the holder member are arranged coaxially, the gap between the outer peripheral surface of the cylindrical portion of the cap member and the holder cylindrical portion can be managed in a fine size. Thus, a labyrinth seal (labyrinths) can be formed between the gap between the outer peripheral surface of the cylindrical portion of the cover member and the holder cylindrical portion and between the end plate portion of the cover member and the holder plate portion, and therefore, it is possible to prevent or suppress foreign matter such as dust from penetrating between the cover member and the holder member and adhering to the image pickup element.

In the present invention, it is preferable that: the end plate portion abuts against the image pickup element from the object side. Thus, no gap is formed between the image pickup element and the end plate portion, and therefore, no foreign matter enters between them. Further, if the end plate portion is in contact with the image pickup element, the positional accuracy of the cover member and the image pickup element is improved, so that the positional accuracy of the diaphragm and the image pickup element is easily improved.

In the present invention, it is possible to provide: the cover member includes a frame portion including a square or rectangular opening on a side of the end plate portion opposite to the tube portion, the contact portions are respectively provided on a first inner wall surface and a second inner wall surface that are adjacent to each other in a mutually orthogonal manner among four inner wall surfaces that define sides of the opening in the frame portion, and the imaging element is inserted into an inner side of the frame portion. Thus, the position and posture of the imaging element around the optical axis can be specified inside the frame portion.

In the present invention, it is preferable that: the surface of the cover member is a black non-glossy surface. Thus, the excessive light reflected by the cover member and incident on the image pickup element can be suppressed.

In the present invention, it is possible to provide: the end plate portion has a square or rectangular outline when viewed from the optical axis direction. For example, when the outline shape of the end plate portion is a square, the length of a gap (a part of the labyrinth seal) formed between the end plate portion of the cover member and the holder plate portion in both directions in which both sides face each other may be set to be the same. This can suppress a decrease in the effect of suppressing the penetration of foreign matter due to the difference in length of the labyrinth seal. Further, for example, when the outline shape of the end plate portion is a rectangle, although there is a difference in length between gaps formed in two opposite directions, if the gap having a short length is set to a necessary length or more in advance, the effect of suppressing the penetration of foreign matter due to the difference in length of the labyrinth seal can be suppressed from being lowered.

In the present invention, it is possible to provide: the end plate portion has a circular outline when viewed from the optical axis direction. In this way, the length of the gap (a part of the labyrinth seal) formed between the end plate portion and the holder plate portion of the cover member in the direction orthogonal to the optical axis can be made the same. This can suppress a decrease in the effect of suppressing the penetration of foreign matter due to the difference in length of the labyrinth seal.

Next, the present invention is a method for manufacturing an optical unit with a shake correction function, including: a cover member fixing step of fixing the cover member to the image pickup device by bringing the image pickup device into contact with the contact portion of the cover member; a substrate fixing step of fixing the substrate to the rotary member by aligning an axis of the cylindrical portion of the cover member with a rotation center of the rotary member rotatably supported by the rotary support mechanism; a disposing step of disposing the holder cylindrical portion of the holder member and the cylindrical portion of the cap member coaxially; and a fixing step of fixing the holder member and the fixing member.

In the present invention, the cover member including the diaphragm and the cylindrical portion includes an abutting portion abutting against the image pickup element from a direction intersecting the optical axis, and is fixed to the image pickup element in a state where the abutting portion abuts against the image pickup element. Thus, the cover member and the imaging element are positioned in the direction intersecting the optical axis, and the center of the imaging element can be aligned with the center of the diaphragm and the center of the cylindrical portion. Further, when the substrate on which the image pickup device is mounted is fixed to the rotating member, the center of rotation of the rotating member rotatably supported by the rotation support mechanism is aligned with the axis of the cylindrical portion of the cover member, so that the center of rotation of the rotating member can be aligned with the center of the image pickup device. Further, before the holder member is fixed to the fixing member, the holder cylindrical portion of the holder member and the cylindrical portion of the cover member are arranged coaxially, so that the optical axis of the optical element can be made to coincide with the center of the image pickup element while the optical element is held coaxially by the holder member. Further, since the holder cylindrical portion of the holder member and the cylindrical portion of the cap member are arranged coaxially, the gap between the outer peripheral surface of the cylindrical portion of the cap member and the holder cylindrical portion can be managed in a fine size. Accordingly, a labyrinth seal can be formed between the gap between the outer peripheral surface of the cylindrical portion of the cover member and the holder cylindrical portion and between the end plate portion of the cover member and the holder plate portion, and therefore, it is possible to prevent or suppress foreign matter from penetrating between the cover member and the holder member and adhering to the image pickup element.

In the present invention, it is possible to provide: in order to arrange the holder cylindrical portion of the holder member and the cylindrical portion of the cover member coaxially, in the arranging step, the holder cylindrical portion of the holder member and the cylindrical portion of the cover member are aligned with the center of the cylindrical portion when viewed from the optical axis direction.

In the present invention, it is possible to provide: in the substrate fixing step, the cylindrical portion of the cover member and the rotary shaft are arranged coaxially to each other, and the substrate is fixed to the rotary member, and in the arranging step, the rotary shaft and the holder cylindrical portion are arranged coaxially to each other. In this way, the cylindrical portion of the cover member and the cylindrical portion of the holder can be arranged coaxially with respect to the rotation axis of the rotation member which is the rotation center of the rotation support mechanism.

In the present invention, it is possible to provide: in the disposing step, an inner diameter of the cylindrical portion of the cover member and the holder cylindrical portion of the holder member are disposed coaxially. In this way, the cylindrical portion of the cover member and the holder cylindrical portion can be arranged coaxially by fitting the jig to the inside of the cylindrical portion of the cover member and aligning the jig with the holder cylindrical portion.

[ Effect of the invention ]

According to the optical unit with a shake correction function of the present invention, since the cover member including the diaphragm and the cylindrical portion is fixed to the image pickup device in a state of being positioned with respect to the image pickup device, the center of the image pickup device can be made to coincide with the center of the diaphragm and the center of the cylindrical portion. Further, since the base plate is fixed to the rotary member by aligning the cylindrical portion of the cover member with the rotation center of the rotary member rotatably supported by the rotation support mechanism, the rotation center of the rotary member can be aligned with the center of the imaging element. Further, the holder member is fixed to the fixing member in a state where the cylindrical portion of the cover member and the holder cylindrical portion that holds the optical element coaxially are positioned coaxially, so that the center of the optical element can be made to coincide with the center of the image pickup element. Further, since the cylindrical portion of the cap member and the holder cylindrical portion of the holder member are arranged coaxially, the gap between the outer peripheral surface of the cylindrical portion of the cap member and the holder cylindrical portion can be managed in a fine size. Accordingly, a labyrinth seal can be formed between the gap between the outer peripheral surface of the cylindrical portion of the cover member and the holder cylindrical portion and between the end plate portion of the cover member and the holder plate portion, and therefore, it is possible to prevent or suppress foreign matter from penetrating between the cover member and the holder member and adhering to the image pickup element.

According to the method of manufacturing an optical unit with a shake correction function of the present invention, since the cover member including the diaphragm and the cylindrical portion is fixed to the image pickup device in a state of being positioned with the image pickup device, the center of the image pickup device can be made to coincide with the center of the diaphragm and the center of the cylindrical portion. Further, since the substrate on which the image pickup device is mounted is fixed to the rotation member by aligning the rotation center of the rotation member rotatably supported by the rotation support mechanism with the axis of the cylindrical portion of the cover member, the rotation center of the rotation member can be aligned with the center of the image pickup device. Further, since the holder cylindrical portion of the holder member and the cylindrical portion of the cover member are arranged coaxially before the holder member is fixed to the fixing member, it is possible to make the optical axis of the optical element coincide with the center of the image pickup element while the holder member holds the optical element.

Drawings

Fig. 1 is a perspective view of an optical unit to which the present invention is applied, as viewed from the object side.

Fig. 2 is a perspective view of the optical unit of fig. 1 as viewed from the side opposite to the object.

Fig. 3 is a sectional view of the optical unit on the line a-a of fig. 1.

Fig. 4 is an exploded perspective view of the optical unit as viewed from the object side.

Fig. 5 is an exploded perspective view of the optical unit when viewed from the side opposite to the object.

Fig. 6 is a perspective view of the imaging unit, the rotation base, the rotation support mechanism, and the fixing member when viewed from the object side.

Fig. 7 is a perspective view of the imaging unit, the rotation base, the rotation support mechanism, and the fixing member when viewed from the side opposite to the object.

Fig. 8 is a perspective view of the imaging unit as viewed from the object side.

Fig. 9 is a perspective view of the imaging unit viewed from the side opposite to the object.

Fig. 10A and 10B are a plan view and a sectional view showing a part of the magnetic driving mechanism for rolling, the posture restoring mechanism, and the rotation supporting mechanism.

Fig. 11 is a flowchart of an assembling operation of the optical unit.

Fig. 12 is an explanatory view of an assembling operation of the optical unit.

Fig. 13A and 13B are explanatory views of the optical unit according to modification 1 and modification 2.

[ description of symbols ]

1. 1A, 1B: optical unit (optical unit with shake correction function)

2: lens unit

3: lens holder (holder component)

4: fixing member

5: rotary supporting mechanism

6: rotary table seat

7: image pickup unit

8: magnetic driving mechanism for rolling

9: posture recovery mechanism

11: fixing body

12: movable body

15: lens (optical element)

16: lens barrel

17: cap cap

18: cover glass

21: holder cylinder

22: retainer plate portion

23: side plate part

24: notch part

25: boss part

26: elastic member

27: screw nail

31: opening of the container

32. 33: flexible printed circuit board

34: projection part

34 a: through hole

41: image pickup device

42: substrate

43: cover member

45: cover glass

46: sensor light receiving part

46a to 46 d: side surface

47: substrate part

48: datum plane

51: aperture

52: end plate part

53: barrel part

54: frame part

55: opening of the container

55a to 55 d: inner wall surface

61: substrate support part

62: rotating shaft

63: concave part

64: heat radiation component

65: thermally conductive sheet

67: gap

68: projection part

71: bearing holding part

72: holding hole

73: annular protrusion

75: bearing part

76: rotation support part

78: outer wheel

79: inner wheel

80: ball body

82: fixing member side annular groove

83: side annular groove of rotary table base

84: rotary body

85: retainer

91: coil

92: magnet

93: magnetized divider line

94: hall element

95: rotation restricting projection

96: concave part for rotation restriction

98: magnetic member

98 a: center of a ship

99: concave part

D1, D2: length of

L: axis (optical axis)

L1: object side

L2: anti-object side

ST 1: cover member fixing step

ST 2: substrate fixing step

ST 3: lens holder arranging process

ST 4: lens holder fixing process

ST 5: lens unit holding process

Detailed Description

Hereinafter, an embodiment of an optical unit with a shake correction function to which the present invention is applied will be described with reference to the drawings. In this specification, the optical axis is defined as an axis L of the optical unit. The L1 direction is an object side in the axis L direction, and the L2 direction is an opposite object side in the axis L direction.

Fig. 1 is a perspective view of an optical unit with a shake correction function to which the present invention is applied, as viewed from the object side. Fig. 2 is a perspective view of the optical unit with shake correction function of fig. 1 as viewed from the side opposite to the object. Fig. 3 is a sectional view of the optical unit with the shake correction function on the line a-a of fig. 1. Fig. 4 is an exploded perspective view of the optical unit with the shake correction function as viewed from the object side. Fig. 5 is an exploded perspective view of the optical unit with the shake correction function as viewed from the side opposite to the object.

As shown in fig. 1 and 2, the optical unit 1 with a shake correction function (hereinafter referred to as an optical unit 1) of the present example includes: a lens unit 2, a lens holder 3 (holder member) holding the lens unit 2, and a fixing member 4 fixed on an end portion of the lens holder 3 on the counter-object side L2. As shown in fig. 3, the optical unit 1 includes: a rotation base 6 (rotation member) rotatably supported by the fixed member 4 via a rotation support mechanism 5, and an imaging unit 7 fixed to the rotation base 6 and rotating integrally with the rotation base 6. The rotation base 6 and the imaging unit 7 are located in a space divided by the lens holder 3 and the fixing member 4. Further, the optical unit 1 includes: a rolling magnetic drive mechanism 8 for rotating the rotation base 6 and the imaging unit 7 around the axis L, and an attitude return mechanism 9 for returning the rotation base 6 to a predetermined reference rotational position. Here, the lens unit 2, the lens holder 3, and the fixing member 4 constitute a fixed body 11, and the rotation base 6 and the imaging unit 7 constitute a movable body 12 movable relative to the fixed body.

(stationary body)

As shown in fig. 3, 4, and 5, the lens unit 2 is configured by combining a lens 15 (optical element) with a lens barrel 16. A cylindrical cap 17 and cover glass (cover glass)18 are attached to the front end of the object side L1 of the lens barrel 16. The lens barrel 16 and the cap 17 are made of resin and are formed of black, non-glossy resin material. Therefore, the surfaces of the barrel 16 and the cap 17 become black non-glossy surfaces.

As shown in fig. 4 and 5, the lens holder 3 includes: the image pickup device includes a cylindrical holder cylinder 21, a holder plate 22 spreading radially outward from an end of the holder cylinder 21 opposite to the object side L2, and a side plate 23 extending cylindrically from an outer peripheral edge of the holder plate 22 toward the opposite object side L2. The lens holder 3 is made of resin and is formed of a black non-glossy resin material. Therefore, the surface of the lens holder 3 becomes a black non-glossy surface. The lens holder 3 holds the lens barrel 16 of the lens unit 2 on the inner peripheral side of the holder cylinder 21. In a state where the lens unit 2 is held in the holder cylinder 21, the axis L of the lens unit 2 coincides with the central axis of the holder cylinder 21 of the lens holder 3. Thus, the lens 15 is coaxially held on the holder cylinder 21.

The holder plate portion 22 has a square shape with four corners cut off when viewed from the direction of the axis L. The side plate portion 23 is formed with a notch portion 24 in which the edge of the reverse object side L2 of one side surface and the chamfered surface provided at the corner portion on both sides thereof is cut out at a predetermined height. The side plate 23 is provided with bosses (boss) 25 at three positions on the side surface in the other three directions except the side surface on which the notch 24 is formed. The lens holder 3 is screwed to the fixing member 4 with screws 27 in a state where a sheet-like elastic member 26 is sandwiched between the lens holder and the fixing member 4.

The fixing member 4 is plate-shaped as a whole and is disposed perpendicularly to the direction of the axis L. As shown in fig. 5, the fixing member 4 has a shape in which the edge of one side (the side of the notch portion 24) of the shape of the side plate portion 23 viewed from the axis L direction is cut out. Therefore, as shown in fig. 2, after the fixing member 4 is fixed to the end of the side plate portion 23 opposite to the object side L2, an opposite object side L2 in the direction of the axis L and an opening 31 that opens in the direction orthogonal to the direction of the axis L are formed between the cutout portion 24 and the fixing member 4. From the opening 31, a flexible printed board 32 and a flexible printed board 33 described later are taken out to the outside of the optical unit 1.

The outer peripheral edge of the fixing member 4 faces the end face of the side plate portion 23 of the lens holder 3 on the side opposite to the object side L2 except the edge on the side of the notch portion 24 in the direction of the axis L. As shown in fig. 3, an elastic member 26 is interposed between the outer peripheral edge of the fixing member 4 and the end surface of the side plate portion 23. As shown in fig. 4, the elastic member 26 is disposed over the entire range in the circumferential direction except for the range in which the opening 31 is formed. Therefore, the gap between the side plate portion 23 and the fixing member 4 is sealed by the elastic member 26 except for the range where the opening 31 is formed.

The fixing member 4 has three protrusions 34 formed on the outer peripheral edge thereof so as to protrude radially outward. The protruding portion 34 is opposed to the boss portion 25 formed on the side plate portion 23 of the lens holder 3 in the direction of the axis L. The fixing member 4 and the screw 27 fixed to the lens holder 3 are inserted into a through hole 34a formed in the projection 34 and screwed into a screw hole provided in the boss portion 25. The fixing position of the screw 27 is located radially outward of the position where the elastic member 26 is sandwiched.

Here, the inner diameter of the through hole 34a is larger than the outer diameter of the shaft portion of the screw 27. Therefore, when the fixing member 4 and the lens holder 3 are fastened, the relative position of the fixing member 4 and the lens holder 3 can be adjusted in the direction orthogonal to the axis L. Further, since the elastic member 26 is interposed between the fixing member 4 and the lens holder 3, by adjusting the screw-fixed state of the three screws 27, the inclination of the axis L of the lens holder 3 (lens unit 2) with respect to the fixing member 4 can be adjusted.

(Movable body)

Fig. 6 is an exploded perspective view of the imaging unit 7, the rotation base 6, the rotation support mechanism 5, and the fixing member 4 when viewed from the subject side L1. Fig. 7 is an exploded perspective view of the imaging unit 7, the rotation base 6, the rotation support mechanism 5, and the fixing member 4 when viewed from the reverse object side L2. Fig. 8 is an exploded perspective view of the image pickup unit 7 when viewed from the object side L1. Fig. 9 is an exploded perspective view when the image pickup unit 7 is viewed from the reverse object side L2. As shown in fig. 3, the imaging unit 7 and the rotary table 6 are arranged in this order from the object side L1 to the opposite object side L2 on the opposite object side L2 of the lens unit 2. As shown in fig. 8, the image pickup unit 7 includes: the image pickup device 41, the substrate 42 on which the image pickup device 41 is mounted, and the cover member 43 that covers the image pickup device 41 so as to cover from the object side L1. As shown in fig. 4, the imaging unit 7 is fixed to the rotary table 6 by fixing the substrate 42 to the rotary table 6. Thereby, the imaging unit 7 rotates integrally with the rotation base 6. As shown in fig. 3, a rolling magnetic drive mechanism 8 is provided between the rotary table 6 and the fixed member 4.

As shown in fig. 8, the shape of the imaging element 41 when viewed from the direction of the axis L is rectangular. In the image pickup device 41, a cover glass 45, a sensor light receiving section 46, and a substrate section 47 are laminated in this order from an object side L1 to a reverse object side L2. A reference surface 48 orthogonal to the light receiving surface of the sensor light receiving portion 46 is provided on two

side surfaces

46a and 46b of the four side surfaces 46a to 46d of the sensor light receiving portion 46, which intersect orthogonally with each other. The reference surfaces 48 are provided in two on one side surface 46a and one on the other side surface 46b of the two

side surfaces

46a and 46 b. The two reference surfaces 48 provided on the one side surface 46a are spaced from each other in the circumferential direction around the axis L. One reference surface 48 provided on the other side surface 46b is provided at a position apart from a corner between the two

side surfaces

46a, 46 b.

The cover member 43 is made of resin and is formed of a black non-glossy resin material. Therefore, the surface of the cover member 43 is a black non-glossy surface. The cover member 43 includes: an end plate 52 defining a diaphragm 51 defining a light incident region to the image pickup device 41, a tube 53 rising from the end plate 52 toward the object side L1 on the outer peripheral side of the diaphragm 51, and a square-tube-shaped frame 54 extending from the outer peripheral edge of the end plate 52 to the opposite object side L2 are formed. The diaphragm 51 is a rectangular opening provided in the end plate portion 52. The end plate 52 is rectangular when viewed in the direction of the axis L. The frame portion 54 has the same outline shape as the end plate portion 52 when viewed from the direction of the axis L, and has a rectangular opening 55 on the inner side as shown in fig. 9. Here, when the shape of the image pickup device 41 when viewed from the axis L direction is a square, the opening 55 inside the frame portion 54 may be a square. The shape of the end plate portion 52 may be square regardless of the shape of the imaging element 41, or the outline shape of the frame portion 54 when viewed from the axis L direction may be square similar to the end plate portion 52 regardless of the shape of the inner opening 55.

The image pickup device 41 fixed to the substrate 42 is inserted from the opposite object side L2 into the rectangular opening 55 of the frame 54. The cover member 43 is fixed to the image pickup device 41 by an adhesive. Here, the first inner wall surface 55a and the second inner wall surface 55b, which are adjacent to each other so as to be orthogonal to each other among the four inner wall surfaces 55a to 55d defining the sides of the rectangular opening 55 in the frame portion 54, are abutting portions which abut on the reference surface 48 of the imaging element 41 from the direction orthogonal to the axis L. The imaging element 41 defines the posture with respect to the cover member 43 around the axis L by bringing the reference surface 48 into contact with the contact portions (the first inner wall surface 55a and the second inner wall surface 55 b). The imaging element 41 defines a position in the cover member 43 in the direction orthogonal to the axis L by bringing the reference surface 48 into contact with the contact portions (the first inner wall surface 55a and the second inner wall surface 55 b). The image pickup device 41 inserted into the frame portion 54 is brought into contact with the end plate portion 52 from the opposite object side L2. Thereby, the position of the image pickup device 41 in the axis L direction on the cover member 43 is defined.

As shown in fig. 7, the rotation table 6 includes: a plate-shaped substrate support portion 61 perpendicular to the axis L, and a rotary shaft 62 protruding from the center of the substrate support portion 61 toward the reverse object side L2. As shown in fig. 6, a concave portion 63 smaller than the substrate 42 is formed on the surface of the substrate support portion 61 on the object side L1. A plate-shaped heat dissipation member 64 is fixed to the bottom surface of the recess 63, and a heat conductive sheet 65 is attached to the surface of the heat dissipation member 64 on the substrate 42 side. The heat radiation member 64 is a plate material made of metal such as aluminum or copper. Here, the substrate 42 is fixed on the object side L1 surface of the substrate support portion 61. When the substrate 42 is fixed to the substrate support portion 61, the substrate 42 is in contact with the thermal conductive sheet 65. Therefore, heat generated by the image pickup device 41 is transmitted from the substrate 42 to the heat radiation member 64 through the heat conductive sheet 65, and is dissipated to the outside through the rotation base 6.

In a state where the substrate 42 is fixed to the substrate support portion 61, as shown in fig. 3, the cylindrical portion 53 of the cover member 43 fixed to the image pickup device 41 on the substrate 42 is positioned coaxially with the rotation shaft 62. The outer peripheral surface of the cylindrical portion 53 of the cover member 43 faces the inner peripheral surface of the holder cylindrical portion 21 at a predetermined interval in a radial direction perpendicular to the axis L. The end plate portion 52 of the cover member 43 faces the holder plate portion 22 of the lens holder 3 at a predetermined interval in the direction of the axis L on the outer peripheral side of the cylindrical portion 53. Thereby, a curved narrow gap 67 (labyrinth seal) is formed between the lens holder 3 and the cover member 43.

In this example, the holder plate portion 22 of the lens holder 3 has a square shape with four corners cut off, whereas the end plate portion 52 of the cover member 43 has a rectangular shape when viewed from the direction of the axis L. Therefore, a difference in length occurs in the gap 67 (labyrinth seal) in the direction in which the two long sides of the rectangle of the end plate portion 52 face each other and in the direction in which the two short sides of the rectangle of the end plate portion 52 face each other. That is, the length of the gap (a part of the labyrinth seal) between the end plate portion 52 and the holder plate portion 22 corresponds to the length of the short side in the direction in which the two long sides of the end plate portion 52 oppose each other. On the other hand, the length of the gap (a part of the labyrinth seal) between the end plate portion 52 and the holder plate portion 22 in the direction in which the two short sides oppose corresponds to the length of the long side. Therefore, the length of the gap 67 (labyrinth seal) in the direction in which the two long sides of the end plate portion 52 face each other is shorter than the length of the gap 67 (labyrinth seal) in the direction in which the two short sides of the end plate portion 52 face each other. Therefore, in this example, the length of the gap 67 (labyrinth seal) in the direction in which the two long sides of the end plate portion 52 face each other is set to a length necessary to prevent foreign matter such as dust from penetrating between the cover member 43 and the lens holder 3.

Here, as shown in fig. 8, the flexible printed board 32 for the image pickup device 41 is connected to the substrate 42 on which the image pickup device 41 is mounted. The edge of the substrate 42 to which the flexible printed substrate 32 is connected faces the opening 31 formed between the notch portion 24 of the lens holder 3 and the fixing member 4 as shown in fig. 2. The flexible printed board 32 is pulled out radially outward from the board 42 through the opening 31, and then is folded back in a U shape and pulled back to the opposite object side L2 of the fixing member 4. The flexible printed board 32 is fixed to the rotary base 6 at a portion immediately after the U-shaped folding outside the opening 31. As shown in fig. 6 and 7, the rotary base 6 is provided with a projection 68 projecting from the edge of the substrate support portion 61 on the opening 31 side toward the anti-object side L2, and the end face of the projection 68 on the anti-object side L2 serves as a fixing surface for fixing the flexible printed substrate 32.

(rotation support mechanism)

As shown in fig. 6, a bearing holding portion 71 is formed on the fixing member 4. The bearing holding portion 71 includes: a holding hole 72 penetrating the fixing member 4 in the direction of the axis L. As shown in fig. 7, an annular protrusion 73 that surrounds the holding hole 72 and protrudes toward the opposite object side L2 is formed on the surface of the fixed member 4 opposite to the object side L2. Here, as shown in fig. 3, the rotation support mechanism 5 includes: a bearing 75 held by the bearing holder 71, and a rotation support 76 formed between the fixed member 4 and the rotation base 6 radially outside the bearing 75. That is, the rotation support mechanism 5 is constituted by two sets of rotation support portions of the bearing portion 75 and the rotation support portion 76.

The bearing portion 75 includes: an outer ring 78 fixed to the inner peripheral surface of the holding hole 72, an inner ring 79 fixed to the outer peripheral surface of the rotary shaft 62, and a ball 80 disposed between the outer ring 78 and the inner ring 79. The front end of the rotary shaft 62 in the direction of the axis L is exposed to the reverse object side L2 of the fixed member 4. More specifically, the rotary shaft 62 projects from the inner ring 79 of the bearing unit 75 toward the opposite object side L2, and projects toward the opposite object side L2 with respect to the annular projecting portion 73 formed on the fixed member 4.

As shown in fig. 6 and 7, the rotation support portion 76 includes: a fixing member-side annular groove 82 formed on the surface of the object side L1 of the fixing member 4, a rotating table base-side annular groove 83 formed on the surface of the substrate support portion 61 of the rotating table base 6 opposite to the object side L2, a rotating body 84 disposed between the fixing member-side annular groove 82 and the rotating table base-side annular groove 83, and a retainer (retainer)85 that retains the rotating body 84 between the fixing member-side annular groove 82 and the rotating table base-side annular groove 83. The fixing member side annular groove 82 is formed radially outward of the outer peripheral surface of the outer ring 78 of the bearing 75.

(magnetic drive mechanism for rolling)

Fig. 10A and 10B are a plan view and a sectional view showing a part of the magnetic driving mechanism 8 for rolling, the posture restoring mechanism 9, and the rotation support mechanism 5. Fig. 10A is a plan view as viewed from the object side L1 in the direction of the axis L, and is a plan view when the rotation base 6 is located at the reference rotation position. Also, fig. 10B is a cross-sectional view taken on line B-B of fig. 10A. When the rotation shaft 62 of the rotation base 6 is rotatably held via the bearing portion 75 attached to the bearing holding portion 71, the rolling magnetic drive mechanism 8 is configured between the substrate support portion 61 of the rotation base 6 and the fixed member 4. The rolling magnetic drive mechanism 8 includes: a pair of coils 91 disposed on both sides in the radial direction with the rotation shaft 62 of the rotation base 6 interposed therebetween, and a pair of magnets 92 disposed on both sides in the radial direction with the bearing holding portion 71 of the fixing member 4 interposed therebetween. The coil 91 and the magnet 92 face each other with a predetermined gap (gap) therebetween in the direction of the axis L.

As shown in fig. 10A, the magnet 92 is divided into two in the circumferential direction, and the magnetic poles of the surfaces facing the coil 91 are magnetized so as to be different from each other at the boundary of the magnetization split line 93 extending in the radial direction. The coil 91 is an air-core coil, and a radially extending portion serves as an effective edge. A hall element 94 is disposed inside the other coil 91. The hall element 94 is fixed to the flexible printed board 33 for supplying power to the coil 91. The hall element 94 faces the magnetization polarization line 93 of the magnet 92 when the rotary table 6 is at a predetermined reference rotational position. The rolling magnetic drive mechanism 8 is controlled based on the origin position in the rolling direction detected based on the signal of the hall element 94, and performs rolling correction by rotating the movable body 12 around the axis L, the image pickup device 41 and the substrate 42 being fixed to the rotating base 6 of the movable body 12.

The flexible printed board 33 of the rolling magnetic drive mechanism 8 is folded back in a U-shape and pulled out to the opposite object side L2 of the fixed member 4, similarly to the flexible printed board 32 for the image pickup device 41. The flexible printed board 33 is fixed to a fixing surface provided on a projection 68, which is provided on the rotating base 6 at a portion immediately after the U-shaped folding, outside the opening 31. Therefore, as shown in fig. 5, the flexible printed

boards

32 and 33 are fixed to the protruding portion 68 in a stacked state.

Here, as shown in fig. 7, a rotation restricting convex portion 95 protruding from the substrate support portion 61 toward the fixing member 4 is formed on the rotation base 6. As shown in fig. 6, the fixing member 4 is formed with a rotation restricting recess 96 into which the tip of the rotation restricting projection 95 is inserted. The rotation restricting recess 96 extends over a predetermined angular range in the circumferential direction. The rotation restricting convex portion 95 and the rotation restricting concave portion 96 constitute a rotation restricting portion that restricts a rotation range (rotation range for roll correction) of the rotation base 6 with respect to the fixed member 4.

(posture recovery mechanism)

The posture recovery mechanism 9 is two sets of magnetic springs (magnetic springs) including: a pair of magnetic members 98 fixed to the rotary base 6, and two magnets 92 constituting the rolling magnetic drive mechanism 8. As shown in fig. 6, each magnetic member 98 is fixed to a pair of concave portions 99 formed on both sides sandwiching the concave portion 63 on the surface of the object side L1 of the substrate supporting portion 61. Each magnetic member 98 is located on the opposite side of the magnet 92 in the direction of the axis L with the coil 91 interposed therebetween. As shown in fig. 10A, the magnetic member 98 has a rectangular shape having a larger dimension in the circumferential direction than in the radial direction. When the rotary table base 6 is located at the reference rotation position, the center 98a in the circumferential direction of the magnetic member 98 is located at a position overlapping the magnetization polarization line 93 of the magnet 92 as viewed from the axis L direction.

When the rotary table base 6 is rotated from the reference rotation position, the center 98a of the magnetic member 98 and the magnetization polarization line 93 of the magnet 92 are circumferentially displaced, and therefore, a magnetic attractive force in a direction in which the center 98a of the magnetic member 98 and the angular position of the magnetization polarization line 93 of the magnet 92 coincide acts between the magnetic member 98 and the magnet 92. That is, when the rotation base 6 is deviated from the reference rotation position, the magnetic attraction force in the direction to return the rotation base 6 to the reference rotation position acts on the posture return mechanism 9. In the present embodiment, two sets of magnetic springs including the magnetic member 98 and the magnet 92 are used, but the magnetic springs may be one set. That is, only one magnetic member 98 may be provided. The rolling magnetic drive mechanism 8 may include at least one set of the coil 91 and the magnet 92.

(method of manufacturing optical Unit)

Fig. 11 is a flowchart of a manufacturing method of the optical unit 1. Fig. 12 is an explanatory view of a method of manufacturing the optical unit 1. As shown in fig. 11, the assembling operation of the optical unit 1 includes: a cover member fixing process ST1, a substrate fixing process ST2, a lens holder arranging process ST3 (arranging process), a lens holder fixing process ST4, and a lens unit holding process ST 5.

In the cover member fixing step ST1, the image pickup device 41 fixed to the substrate 42 is inserted into the opening 55 of the frame portion 54 of the cover member 43. Then, as shown in fig. 12, the reference surface 48 of the imaging element 41 is brought into contact with the contact portion (the first inner wall surface 55a and the second inner wall surface 55 b). Then, the cover glass 45 of the imaging device 41 is brought into contact with the surface of the end plate portion 52 of the cover member 43 on the side opposite to the object side L2. Then, the cover member 43 is fixed to the image pickup device 41 with an adhesive.

In the substrate fixing step ST2, the substrate 42 is fixed to the rotating base 6 by aligning the axis of the cylindrical portion 53 of the cover member 43 with the rotation center of the rotating base 6 by the rotation support mechanism 5. In the substrate fixing step ST2, the rotation base 6 is rotatably supported by the fixing member 4 via the rotation support mechanism 5. Between the fixed member 4 and the rotary base 6, a rolling magnetic drive mechanism 8 and an attitude return mechanism 9 are configured. Here, in this example, the cylindrical portion 53 of the cover member 43 is positioned coaxially with the rotation shaft 62, so that the axis of the cylindrical portion 53 of the cover member 43 coincides with the rotation center of the rotation base 6 rotatably supported by the rotation support mechanism 5, whereby the substrate 42 is fixed to the rotation base 6. That is, in the substrate fixing step ST2, the imaging unit 7 is fixed to the rotation base 6 with the rotation shaft 62 and the cylindrical portion 53 of the cover member 43 as references.

In the lens holder arranging process ST3, the holder cylindrical portion 21 of the lens holder 3 and the cylindrical portion 53 of the cover member 43 are arranged coaxially. In this example, the holder cylindrical portion 21 of the lens holder 3 and the cylindrical portion 53 of the cover member 43 are arranged coaxially by arranging the rotation shaft 62 and the holder cylindrical portion 21 coaxially. That is, the holder cylinder portion 21 is positioned with reference to the rotation shaft 62.

In the lens holder fixing step ST4, the lens holder 3 and the fixing member 4 are fixed in a state where the holder cylinder portion 21 is positioned with respect to the rotation shaft 62. That is, the screw 27 is inserted into the through hole 34a of the fixing member 4 and screwed into a screw hole provided in the boss portion 25 of the lens holder 3, thereby fastening the lens holder 3 and the fixing member 4. Here, the inner diameter of the through hole 34a is larger than the outer diameter of the shaft portion of the screw 27. Therefore, the lens holder 3 can be fixed to the fixing member 4 in a state where the holder cylinder portion 21 is positioned with respect to the rotation shaft 62.

In the lens unit holding process ST5, the lens unit 2 is fixed to the lens holder 3. In this example, the portion of the lens barrel 16 of the lens unit 2 opposite to the object side is inserted into the inner peripheral side of the holder cylindrical portion 21 of the lens holder 3, and the lens unit 2 is coaxially held in the holder cylindrical portion 21. Here, the lens 15 is coaxially held on the holder cylinder 21. That is, the optical axis of the lens 15 is aligned with the axis of the holder cylinder 21. Thereby, the assembly of the optical unit 1 is completed.

According to this manufacturing method, in the cover member fixing step ST1, the cover member 43 and the imaging element 41 are positioned in the direction intersecting the axis L, so that the center of the imaging element 41 can be aligned with the center of the diaphragm 51 and the center of the cylindrical portion 53. In the substrate fixing step ST2, since the rotation center of the rotation base 6 rotatably supported by the rotation support mechanism 5 (the rotation center line of the rotation shaft 62) is aligned with the axis of the cylindrical portion 53 of the cover member 43, the rotation center of the rotation base 6 can be aligned with the center of the image pickup device 41. Further, in the lens holder arranging step ST3, since the holder cylindrical portion 21 of the lens holder 3 and the cylindrical portion 53 of the cover member 43 are arranged coaxially, when the lens unit 2 (the lens 15) is coaxially held by the lens holder 3 in the lens unit holding step ST5, the optical axis of the lens 15 can be made to coincide with the center of the image pickup element 41. Further, since the holder cylindrical portion 21 of the lens holder 3 and the cylindrical portion 53 of the cover member 43 are arranged coaxially, the clearance 67 between the outer peripheral surface of the cylindrical portion 53 of the cover member 43 and the holder cylindrical portion 21 can be managed with a fine size, and a labyrinth seal can be configured.

In the lens holder arranging step ST3, the center of the holder cylindrical portion 21 of the lens holder 3 and the cylindrical portion 53 of the cover member 43 may be aligned with the center of the cylindrical portion 53 when the holder cylindrical portion 21 and the cylindrical portion 53 are viewed from the direction of the axis L.

In the lens holder arranging step ST3, the inner diameter of the cylindrical portion 53 of the cover member 43 may be arranged coaxially with the holder cylindrical portion 21 of the lens holder 3. In this case, the cylindrical portion 53 of the cover member 43 and the holder cylindrical portion 21 can be arranged coaxially by fitting a jig inside the cylindrical portion 53 of the cover member 43 and aligning the jig with the holder cylindrical portion 21.

(Effect)

According to this example, the cover member 43 including the diaphragm 51 and the cylindrical portion 53 includes: the contact portions (the first inner wall surface 55a and the second inner wall surface 55b) that contact the image pickup device 41 in a direction intersecting the axis L that coincides with the optical axis are fixed to the image pickup device 41 in a state where the contact portions are in contact with the image pickup device 41. Thus, the cover member 43 and the imaging element 41 are positioned in the direction intersecting the axis L, and therefore the center of the imaging element 41 can be aligned with the center of the diaphragm 51 and the center of the cylindrical portion 53. Further, since the substrate 42 is fixed to the rotation base 6 such that the axis of the cylindrical portion 53 of the cover member 43 coincides with the rotation center of the rotation base 6, the rotation center of the rotation base 6 can coincide with the center of the image pickup device 41. Further, since the lens holder 3 is fixed to the fixing member 4 in a state where the holder cylindrical portion 21 that holds the optical element coaxially and the cylindrical portion 53 of the cover member 43 are positioned coaxially, the center of the lens 15 (lens unit 2) can be made to coincide with the center of the image pickup element 41.

Further, since the cylindrical portion 53 of the cover member 43 and the holder cylindrical portion 21 of the lens holder 3 are arranged coaxially, the gap 67 between the outer peripheral surface of the cylindrical portion 53 of the cover member 43 and the holder cylindrical portion 21 can be managed with a fine size. Thus, a labyrinth seal can be formed between the clearance between the outer peripheral surface of the cylindrical portion 53 of the cover member 43 and the holder cylindrical portion 21 and between the end plate portion 52 of the cover member 43 and the holder plate portion 22. Therefore, it is possible to prevent or suppress foreign matter such as dust from penetrating between the cover member 43 and the lens holder 3 and adhering to the image pickup element 41.

In this example, the end plate portion 52 of the cover member 43 abuts on the image pickup device 41 from the object side L1. Thus, no gap is formed between the imaging element 41 and the end plate portion 52, and therefore, no foreign matter enters between them. Further, as long as the end plate portion 52 abuts against the image pickup device 41, the positional accuracy of the cover member 43 and the image pickup device 41 is improved, so that the positional accuracy of the diaphragm 51 and the image pickup device 41 is easily improved.

The surface of the cover member 43 is a black matte surface. That is, the surface of the cover member 43 is a low reflection surface. Therefore, stray light reflected by the cover member 43 and incident on the imaging element 41 can be suppressed.

(modification example)

Fig. 13A and 13B are explanatory views of the optical unit according to modification 1 and modification 2. Fig. 13A is a plan view of the lens holder 3 and the cover member 43 of the optical unit 1A of modification 1 as viewed from the object side L1. Fig. 13B is a plan view of the lens holder 3 and the cover member 43 of the optical unit 1B of modification 2 when viewed from the object side L1. In the optical unit 1, the outline shape of the end plate portion 52 of the cover member 43 when viewed from the axis L direction is rectangular, but in the optical unit 1A of the modification 1, as shown in fig. 13A, the outline shape of the end plate portion 52 of the cover member 43 when viewed from the axis L direction is square. The optical unit 1A of modification 1 has the same configuration as the optical unit 1 except for the contour shape of the end plate portion 52. In this way, the length D1 of the gap 67 (a part of the labyrinth seal) formed between the end plate portion 52 of the lid member 43 and the holder plate portion 22 can be made the same in both directions in which both sides of the square face each other. This can suppress a reduction in the effect of suppressing the penetration of foreign matter due to the difference in length of the labyrinth seal.

In the optical unit 1B of modification 2, as shown in fig. 13B, the outline shape of the end plate portion 52 of the cover member 43 when viewed from the axis L direction is a circular shape concentric with the cylindrical portion 53. The optical unit 1B of modification 2 has the same configuration as the optical unit 1 except for the contour shape of the end plate portion 52. In this way, the length D2 of the gap (a part of the labyrinth seal) formed between the end plate portion 52 of the cover member 43 and the holder plate portion 22 in the direction orthogonal to the axis L can be made the same. This can suppress a reduction in the effect of suppressing the penetration of foreign matter due to the difference in length of the labyrinth seal.

Claims

1. An optical unit with a shake correction function, comprising:

an image pickup element;

a substrate on which the imaging element is mounted;

an optical element disposed on an object side of the image pickup element;

a holder member that holds the optical element;

a cover member comprising: an end plate portion in which a stop defining a light incident region toward the imaging element is formed, a tube portion rising from the end plate portion toward the object side on an outer peripheral side of the stop, and a contact portion that contacts the imaging element from a direction intersecting an optical axis;

a rotating member to which the substrate is fixed;

a rotation support mechanism that supports the rotation member to be rotatable around an optical axis of the optical element;

a fixed member that supports the rotating member via the rotation support mechanism; and

a rolling magnetic drive mechanism that rotates the rotary member;

wherein the cover member is fixed to the image pickup element in a state where the abutting portion abuts against the image pickup element,

the base plate is fixed to the rotary member such that the rotation center of the rotary member supported by the rotary support mechanism coincides with the axis of the cylindrical portion of the cover member,

the retainer means comprises: a holder cylinder portion facing an outer peripheral surface of the cylinder portion of the cover member with a gap therebetween, and a holder plate portion facing the end plate portion with a gap therebetween on an outer peripheral side of the cylinder portion of the cover member,

the optical element is coaxially held on the holder cylinder,

the fixing member is fixed to the cylindrical portion of the cover member and the holder cylindrical portion in a coaxial state.

2. The optical unit with shake correcting function according to claim 1, characterized in that: the end plate portion abuts against the image pickup element from the object side.

3. An optical unit with shake correcting function according to claim 2, characterized in that:

the cover member includes a frame portion on a side of the end plate portion opposite to the cylindrical portion of the cover member, the frame portion including a square or rectangular opening,

the abutting portions are respectively provided on a first inner wall surface and a second inner wall surface which are orthogonal and adjacent to each other among four inner wall surfaces defining each side of the opening in the frame portion,

the imaging element is inserted into the inner side of the frame portion.

4. The optical unit with shake correcting function according to claim 3, characterized in that: in the cover member, a surface of the cover member is a black non-glossy surface.

5. The optical unit with shake correcting function according to claim 1, characterized in that:

the imaging element is inserted into the inner side of the frame portion.

6. An optical unit with shake correcting function according to claim 5, characterized in that: in the cover member, a surface of the cover member is a black non-glossy surface.

7. The optical unit with shake correcting function according to claim 1, characterized in that: in the cover member, a surface of the cover member is a black non-glossy surface.

8. The optical unit with shake correcting function according to any one of claims 1 to 7, characterized in that:

the end plate portion has a square or rectangular outline when viewed from the optical axis direction.

9. The optical unit with shake correcting function according to any one of claims 1 to 7, characterized in that:

the end plate portion has a circular outline when viewed from the optical axis direction.

10. A method of manufacturing an optical unit with shake correction function according to any one of claims 1 to 9, characterized by comprising:

a cover member fixing step of fixing the cover member to the image pickup device by bringing the image pickup device into contact with the contact portion of the cover member;

a substrate fixing step of fixing the substrate to the rotary member by aligning an axis of the cylindrical portion of the cover member with a rotation center of the rotary member rotatably supported by the rotary support mechanism;

a disposing step of disposing the holder cylindrical portion of the holder member and the cylindrical portion of the cap member coaxially; and

and a fixing step of fixing the holder member and the fixing member.

11. The method of manufacturing an optical unit with shake correcting function according to claim 10, characterized in that:

in the disposing step, the center of the cylindrical portion of the cover member is aligned with the center of the holder cylindrical portion of the holder member when the holder cylindrical portion of the holder member and the cylindrical portion of the cover member are viewed from the optical axis direction.

12. The method of manufacturing an optical unit with shake correcting function according to claim 10, characterized in that:

as the rotation support mechanism, a rotation shaft is provided in advance on the rotation member, and a bearing portion that supports the rotation shaft is provided on the fixed member,

in the substrate fixing step, the cylindrical portion of the cover member is disposed coaxially with the rotation shaft to fix the substrate to the rotation member,

in the disposing step, the rotating shaft and the holder cylinder are disposed coaxially.

13. The method of manufacturing an optical unit with shake correcting function according to claim 10, characterized in that:

in the disposing step, the cylindrical portion of the cover member and the holder cylindrical portion of the holder member are disposed coaxially.