JP2014052397A - Mounting structure of optical component unit and light receiving element, and annular flat plate member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the degree of freedom in design and the incorporation workability of an optical component unit and enable easy addition to an existing component, by dispensing with a coil spring installation space around a screw boss.SOLUTION: An annular flat plate member 10 that is formed of an annular flat plate and integrally includes elastic parts 15 for height adjustment corresponding to a plurality of screw n positions is interposed between an optical component unit 5 and a plate 2 mounted with a light receiving element 1. The optical component unit 5 is fastened to the plate 2 with the screws n at the plurality of positions while the annular flat plate member 10 is interposed, and the tilt of the light receiving element 1 with respect to the optical component unit 5 can be adjusted with the elastic parts 15 corresponding to the plurality of screws n.

Description

  The present invention relates to a mounting structure of an optical component unit and a light receiving element, and an annular flat plate member used for the mounting.

In mounting of a digital camera, Patent Document 1 discloses a mounting structure for a lens unit and an assembly for attaching an imaging device to the lens unit.
In the mounting structure, a coil spring is installed between the screw part of the assembly part and the screw boss of the lens unit, and after assembly of the assembly part into the lens unit, the optical axis of the lens and the image pickup surface of the image sensor are perpendicular to each other Rotate the screw to adjust the tilt of the imaging surface.

JP 2007-110257 A

  However, in the mounting structure of Patent Document 1, there is a problem of workability for installing a small coil spring, and it is necessary to secure a space for installing the coil spring in advance when designing a lens.

  An object of the present invention is to eliminate the need for a coil spring installation space around a screw boss, to improve the degree of freedom in design of an optical component unit and the workability for assembly, and to be easily added to an existing component unit.

In order to solve the above problems, the present invention provides:
Between the optical component unit and the plate on which the light receiving element is mounted, an annular flat plate member formed by an annular flat plate and integrally having an elastic portion for height adjustment corresponding to a plurality of screw positions is provided. Dress
The optical component unit and the plate are screwed at the plurality of locations with the annular flat plate member interposed therebetween, and the light receiving element is inclined with respect to the optical component unit by the elastic portions respectively corresponding to the screws at the plurality of locations. It is characterized by a mounting structure of the optical component unit and the light receiving element that can be adjusted.

  According to the present invention, since a coil spring installation space around the screw boss is not required, the degree of freedom in designing optical component mounting and assembly workability can be improved, and it can be easily added to an existing component unit.

It is a disassembled perspective view which shows the structure of one Embodiment of the mounting structure to which this invention is applied. It is an enlarged view of the cyclic | annular flat plate member of FIG. It is an enlarged view of the arrow A part of FIG. It is the perspective view which showed the state which incorporated the cyclic | annular flat plate member and the light receiving element in the optical component unit of FIG. It is the figure which expanded the arrow A part of FIG. 4, and showed the screw in the see-through state. It is the figure which expanded and expanded a part of FIG. 5, and was shown. It is a principal part side view which shows the modification 1. FIG. It is a principal part side view which shows the modification 2. FIG. FIG. 10 is a side view of a main part showing a third modification.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment)
FIG. 1 is an exploded perspective view showing a configuration of an embodiment of a mounting structure to which the present invention is applied. 1 is an image sensor (light receiving element), 2 is a sensor plate, 3 is a sensor FPC, 4 is a sensor substrate, and 5 is a lens. Unit (optical component unit), 6 is a sensor rubber, 7 is an optical filter, 8 is a positioning pin, 9 is a screw boss, 10 is an annular flat plate member, and n is a screw.

As shown in the figure, an image sensor 1 as a light receiving element is mounted on a square and annular sensor plate 2 surrounding the periphery thereof, and is electrically connected to a sensor substrate 4 to which a sensor FPC 3 is connected.
The lens unit 5 which is an optical component unit incorporates a sensor rubber 6 and an optical filter 7 in the center, and has positioning pins 8 at two places (parallel sides) and screw bosses 9 at three places (three sides). It has.

  The sensor rubber 6 and the periphery of the optical filter 7 of the lens unit 5 and the sensor plate 2 are coupled to each other by a screw n with an annular flat plate member 10 interposed therebetween.

  The annular flat plate member 10 is formed by a leaf spring in a square shape similar to the sensor plate 2, and as shown in an enlarged view in FIG. 2, positioning projecting pieces 11 and positioning holes 12 at two places (parallel sides) around the annular flat plate member 10. , Screwing protrusions 13 and screwing holes 14 at three places (three sides) are provided.

Further, as shown in an enlarged view in FIG. 3, a spring portion 15 is formed around the screwing hole 14. The spring portion 15 has elasticity that is inclined by half punch press molding so as to face the diameter direction.
Thus, the annular flat plate member 10 has a processing advantage obtained by one press molding.

  FIG. 4 shows a state in which the annular flat plate member 10 and the light receiving element 1 are incorporated in the lens unit 5. As shown in the figure, around the light receiving element 1, the two positioning pins 8 of the lens unit 5 are annular. The plate member 10 is inserted into the sensor plate 2 through the positioning hole 12.

Then, as shown in FIGS. 5 and 6, the three screws n are passed through the screw holes 14 of the sensor plate 2 and the annular flat plate member 10 and fastened to the screw bosses 9 respectively.
At this time, a spring portion 15 is positioned on the lens unit 5 so as to face the diameter direction around the positioning hole 12 of the annular flat plate member 10 below the head of the screw n. An upward elastic force is applied to the sensor plate 2 via the.

Here, the operator can accurately adjust the height of the screw n portion by rotating any or some of the three screws n around the image sensor 1 by a necessary amount. It is possible to accurately adjust the inclination of.
That is, the tilt of the imaging surface can be adjusted by rotating the three screws n as necessary so that the optical axis of the lens of the lens unit 5 and the imaging surface of the imaging device 1 are perpendicular to each other.
The adjustment amount (rotation angle) can be accurately adjusted by the screw pitch x (rotation angle / 360) to be used.

  As described above, according to the mounting structure of the embodiment, the spring portion 15 for height adjustment corresponding to the three screw n positions is integrated between the lens unit 5 and the plate 2 on which the imaging device 1 is mounted. By interposing the annular flat plate member 10 included in the lens unit 5, a conventional coil spring installation space is unnecessary around the screw boss 9 of the lens unit 5. It can be easily added to the lens.

(Modification 1)
FIG. 7 is a side view of an essential part showing Modification 1. As shown in the drawing, a jagged portion 51 is formed on the upper surface of the lens unit 5 at the portion where the tip of the spring portion 15 of the annular flat plate member 10 abuts. ing.
As described above, if the jagged shape portion 51 is formed on the upper surface of the lens unit 5, the tip of the spring portion 15 abuts on the jagged shape portion 51, and the operator tightens the tightening of the screw n. You can feel in multiple stages according to the position.

  When the spring portion 15 is inclined toward the sensor plate 2, a jagged shape portion is formed on the lower surface of the sensor plate 2 at the portion where the tip of the spring portion 15 contacts.

(Modification 2)
FIG. 8 is a side view of an essential part showing Modification 2. As shown in the drawing, a bent part 16 in the reverse direction is formed in the middle of the spring part 15.
In this way, if the bent portion 16 in the reverse direction is formed in the middle of the spring portion 15, the bent portion 16 in the middle of the spring portion 15 comes into contact with the upper surface of the lens unit 5 before the spring portion 15 is Since the tip of the bent portion 16 contacts the lower surface of the sensor plate 2, the operator can experience the tightening degree of the screw n in two stages.

When the spring portion 15 is inclined toward the sensor plate 2 side, a bent portion is formed in the opposite direction.
Further, the number of the bent portions 16 may be two or more in the staggered direction.

(Modification 3)
FIG. 9 is a side view of an essential part showing Modification 3. An annular flat plate member 10 is formed of a flexible material such as urethane, and the flexible flat plate member 10 is passed through a screw n as shown in FIG. The cylindrical portion 17 functioning as a spring portion is formed integrally with the nature.

  Then, as shown in the figure, a cylindrical portion 17 that functions as a spring portion is integrally formed on the annular flat plate member 10 made of a flexible material through a screw n. A concave portion 52 having a sufficiently larger diameter than the cylindrical portion 17 is formed on the upper surface of the lens unit 5 at a portion where the tip of the cylindrical portion 17 of the annular flat plate member 10 made of a flexible material comes into contact.

  Thus, if the cylindrical portion 17 that functions as a spring portion is formed on the annular flat plate member 10 made of a flexible material and the concave portion 52 is formed on the upper surface of the lens unit 5, the cylindrical portion 17 contacts the concave portion 52 from the tip. In contact therewith, the outer diameter of the cylindrical portion 17 swells due to elastic deformation, so that the operator can experience the tightness of the screw n continuously and continuously.

  When the cylindrical portion 17 is provided on the sensor plate 2 side, a recess is formed on the lower surface of the sensor plate 2.

(Other variations)
In the above embodiment, the lens unit and the image sensor are used. However, the present invention is not limited to this, and other optical components such as a laser light source and a light receiving unit of an optical pickup of an optical disk drive and a light receiving element. Also good.
In the embodiment, three elastic portions corresponding to the screw positions are used.
Furthermore, the shape of the annular flat plate member and the like are arbitrary, and it is needless to say that other specific detailed structures can be appropriately changed.

As mentioned above, although several embodiment of this invention was described, the scope of the present invention is not limited to the above-mentioned embodiment, The range of the invention described in the claim, and its equivalent range Including.
The invention described in the scope of claims attached to the application of this application will be added below.
The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
Between the optical component unit and the plate on which the light receiving element is mounted, an annular flat plate member formed by an annular flat plate and integrally having an elastic portion for height adjustment corresponding to a plurality of screw positions is provided. Dress
The optical component unit and the plate are screwed at the plurality of locations with the annular flat plate member interposed therebetween, and the light receiving element is inclined with respect to the optical component unit by the elastic portions respectively corresponding to the screws at the plurality of locations. A mounting structure of an optical component unit and a light receiving element, characterized by being adjustable.
<Claim 2>
The mounting structure of an optical component unit and a light receiving element according to claim 1, wherein the optical component is a lens, and the light receiving element is an imaging element.
<Claim 3>
The optical component unit or the plate is provided with a jagged shape portion that abuts on the elastic portion and feels the degree of tightening of the screw in a plurality of stages. Mounting structure of component unit and light receiving element.
<Claim 4>
3. The optical component according to claim 1, wherein the elastic portion is formed with a bent portion that abuts on the optical component unit or the plate and feels the tightening degree of the screw in a plurality of stages. Mounting structure of unit and light receiving element.
<Claim 5>
3. The optical component unit according to claim 1, wherein the optical component unit or the plate is formed with a concave portion that makes contact with the elastic portion and allows the screw to be felt in a plurality of stages. And mounting structure of light receiving element.
<Claim 6>
It is interposed between the optical component unit and the plate on which the light receiving element is mounted, and is integrally provided with an elastic portion for height adjustment corresponding to the screw positions at a plurality of positions formed by an annular flat plate. An annular flat plate member.
<Claim 7>
The annular flat plate member according to claim 6, wherein the annular flat plate member is formed of the annular spring material.
<Claim 8>
The annular flat plate member according to claim 7, wherein the elastic portion is formed with a bent portion that comes into contact with the optical component unit or the plate and feels the degree of tightening of the screw in a plurality of stages.
<Claim 9>
The annular flat plate member according to claim 6, wherein the annular flat plate member is formed of the annular flexible plate material.
<Claim 10>
The elastic part is formed by a cylindrical part through which the screw is inserted,
10. The annular flat plate member according to claim 9, wherein the cylindrical portion comes into contact with the optical component unit or the plate to allow the screw tightening to be experienced in a plurality of stages by elastic deformation of an outer diameter.

1 Image sensor (light receiving element)
2 Plate 3 FPC
4 Substrate 5 Lens unit (optical component unit)
6 Rubber 7 Optical filter 8 Positioning pin 9 Screw boss 10 Annular flat plate member 11 Positioning protrusion 12 Positioning hole 13 Screwing protrusion 14 Screwing hole 15 Elastic part 16 Bending part 17 Cylindrical part (elastic part)
51 Jagged shape 52 Recess n Screw

Claims (10)

Between the optical component unit and the plate on which the light receiving element is mounted, an annular flat plate member formed by an annular flat plate and integrally having an elastic portion for height adjustment corresponding to a plurality of screw positions is provided. Dress
The optical component unit and the plate are screwed at the plurality of locations with the annular flat plate member interposed therebetween, and the light receiving element is inclined with respect to the optical component unit by the elastic portions respectively corresponding to the screws at the plurality of locations. A mounting structure of an optical component unit and a light receiving element, characterized by being adjustable.   The mounting structure of an optical component unit and a light receiving element according to claim 1, wherein the optical component is a lens, and the light receiving element is an imaging element.   The optical component unit or the plate is provided with a jagged shape portion that abuts on the elastic portion and feels the degree of tightening of the screw in a plurality of stages. Mounting structure of component unit and light receiving element.   3. The optical component according to claim 1, wherein the elastic portion is formed with a bent portion that abuts on the optical component unit or the plate and feels the tightening degree of the screw in a plurality of stages. Mounting structure of unit and light receiving element.   3. The optical component unit according to claim 1, wherein the optical component unit or the plate is formed with a concave portion that makes contact with the elastic portion and allows the screw to be felt in a plurality of stages. And mounting structure of light receiving element.   It is interposed between the optical component unit and the plate on which the light receiving element is mounted, and is integrally provided with an elastic portion for height adjustment corresponding to the screw positions at a plurality of positions formed by an annular flat plate. An annular flat plate member.   The annular flat plate member according to claim 6, wherein the annular flat plate member is formed of the annular spring material.   The annular flat plate member according to claim 7, wherein the elastic portion is formed with a bent portion that comes into contact with the optical component unit or the plate and feels the degree of tightening of the screw in a plurality of stages.   The annular flat plate member according to claim 6, wherein the annular flat plate member is formed of the annular flexible plate material. The elastic part is formed by a cylindrical part through which the screw is inserted,
10. The annular flat plate member according to claim 9, wherein the cylindrical portion comes into contact with the optical component unit or the plate to allow the screw tightening to be experienced in a plurality of stages by elastic deformation of an outer diameter.

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