JP2001218090A - Image pickup device, jig for fixing image pickup element and method for mounting image pickup element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image pickup device, a jig for fixing an image pickup element and an image pickup element mounting method which can improve the accuracy of optical axis adjustment of the image pickup element and an image pickup lens, have high workability and can easily mount the image pickup element on the main body frame of the image pickup device without depending on personal technique. SOLUTION: In the case of mounting a CCD mounting substrate 22 on a bracket 13, a jig 30 is inserted into a lens platform 15, fitting members 32a and 32b provided on the pedestal 31 of the jig 30 are also fitted into two hole parts 16a and 16b provided on the surface of the outer circumferential part of the platform 15, the jig 30 is fixed to a front escutcheon 11, and the substrate 22 is fixed to the CCD holding members 33a and 33b of the fixed jig 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup apparatus which can easily mount an image pickup device provided on a photographing apparatus such as a surveillance camera, and a method of mounting the same.

[0002]

2. Description of the Related Art In recent years, with the advance of semiconductor technology, image sensors used in photographing apparatuses and the like have become more highly integrated and higher in density, and the image sensors themselves have been reduced in size. When mounting, it is required to increase the optical axis accuracy of the imaging element and the imaging lens, that is, the accuracy of making the optical axis of the imaging lens coincide with the center of the imaging surface of the imaging element.

Conventionally, a method of mounting an image pickup device on a main body frame of this type of image pickup apparatus has been performed manually by an operator or the like. A typical mounting method is shown in FIGS. Show.

Referring to FIGS. 5 and 6, a main body frame 1 of an image pickup apparatus includes an image pickup device 2, a mounting plate 3 for holding and mounting the image pickup device 2, and a mounting plate 3 for mounting the image pickup device 2 to the mounting plate 3. A holding plate 4 for holding the mounting plate 2, a bracket 5 for holding the mounting plate 3, and a main body frame (hereinafter referred to as a front escutcheon) 6 are provided.

In the conventional mounting method, first, the image pickup device 2 is fixed to the mounting plate 3 using the holding plate 4, and when the mounting plate 3 to which the image pickup device 2 is fixed is mounted on the bracket 5, The bracket 5 is fitted to an optical axis adjustment jig (not shown), and a pinhole image is formed by the optical axis adjustment jig.

At this time, the operator adjusts the optical axis while looking at a monitor (not shown) connected to the image sensor 1, and adjusts the mounting position at which the mounting plate 2 is mounted on the bracket 4.

Next, the mounting plate 2 is mounted at the mounting position of the bracket 4, and finally, the bracket 4 to which the mounting plate 2 is mounted is mounted on the front escutcheon 5.

[0008]

However, in the conventional method of mounting the image pickup device on the main body frame of the image pickup apparatus, since the operation is performed manually by an operator, the optical axis is accurately adjusted. It takes a lot of time to determine the position where the image pickup device is mounted, and it depends on the skill of each worker.

Further, since the image pickup device is mounted on the main body frame after the adjustment of the optical axis, there is a problem that the optical axis is shifted when mounted on the main body frame.

According to the present invention, in order to solve such a problem, the precision of optical axis adjustment between the image pickup device and the image pickup lens can be improved, workability is good, and without depending on personal skills. It is an object of the present invention to provide an image pickup apparatus and an image pickup element mounting method capable of easily attaching the image pickup element to a main body frame of the image pickup apparatus.

[0011]

According to a first aspect of the present invention, there is provided an imaging apparatus, wherein an imaging lens mounting member for mounting an imaging lens is provided coaxially with a mounting position of the imaging lens, and an image is formed via the imaging lens. An image pickup element mounting member for fixing an image pickup element for photoelectrically converting an image, wherein at least two or more holes are provided on an outer peripheral surface of the image pickup lens mounting member, and the image pickup element is held on the image pickup element mounting member. It has a configuration in which at least two or more insertion holes through which a jig to be inserted is inserted are provided.

With this configuration, when the imaging device is mounted on the main body frame of the imaging apparatus, the hole of the main body frame is fitted to the fitting member of the jig, and the holding member of the jig is mounted on the imaging lens mounting member. Can be penetrated.

According to a second aspect of the present invention, there is provided a jig for fixing an image pickup device according to the first aspect of the present invention, wherein the jig is provided with a pedestal member and an imaging lens mounted on the pedestal member. A fitting member that fits into a hole provided in the member, and a plurality of holding members that are provided in the pedestal member and that can be inserted into insertion holes provided in a main body frame of the imaging device and that hold an imaging element at a distal end portion. And a member.

With such a configuration, by fitting the fitting member into the hole of the imaging lens mounting member, the imaging lens mounting member can be positioned on the pedestal member.
In addition, since the holding member can be inserted into the insertion hole provided in the imaging element mounting member and the imaging element can be held, when the imaging element is mounted on the main body frame of the imaging apparatus, the mounting of the imaging element is performed. There is no need to adjust the position, and the optical axis positions of the imaging element and the imaging lens can be easily adjusted.

According to a third aspect of the present invention, there is provided an image pickup device for photoelectrically converting an image formed via an image pickup lens, an image pickup lens mounting member to which the image pickup lens is mounted, and the image pickup device. A main body frame of an imaging device having an image sensor mounting member for fixing the image sensor coaxially with a lens mounting position, a pedestal member, and a hole provided in the pedestal member and provided in the imaging lens mounting member. An image pickup device fixing jig having a fitting member to be inserted, and a plurality of holding members that are provided in the base member and that can be inserted into insertion holes provided in a main body frame of the image pickup device and that hold the image pickup device at a distal end portion. And the holder is inserted through the insertion hole of the imaging element mounting member, and a hole provided on the outer peripheral surface of the imaging lens mounting member. After fitted into the fitting member, is held to the imaging element at the tip portion of the holding member, then, it has a structure in which the imaging element is to be mounted on the imaging element mounting member.

With this configuration, when the imaging device is mounted on the main body frame of the imaging apparatus, the jig can be fixed to the imaging lens mounting member by fitting the hole of the imaging lens mounting member into the fitting member. Since the image sensor can be held by inserting the holding member through the insertion hole provided in the image sensor mounting member, there is no need to adjust the mounting position of the image sensor, and the optical axis of the image sensor and the imaging lens can be adjusted. The position can be easily adjusted.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a description will be given based on an embodiment of the present invention.

FIGS. 1 to 4 are views showing an embodiment of an image pickup apparatus, a jig for fixing an image pickup element, and a method of attaching an image pickup element according to the present invention, and FIG. FIG. 2 is an exploded perspective view, and FIG. 2 is a rear perspective view showing a structure of a bracket attached to a main body frame of the imaging apparatus.

The main body frame 10 of the image pickup apparatus shown in FIG.
Is configured such that an imaging lens (not shown) and an imaging device (hereinafter, referred to as a CCD) 20 for photoelectrically converting an image formed through the imaging lens are arranged with their optical axes aligned. The main body frame 10 of the imaging apparatus has an imaging lens (not shown)
A CCD 20 and other substrates are provided inside.

The main body frame 10 of the imaging apparatus has a front escutcheon 11, a focus adjustment ring 12 for adjusting the focus of an imaging lens (not shown), a CCD package 21 on which a CCD 20 is mounted, and the CCD package 21 mounted thereon. And a cover 14 for mounting the CCD mounting substrate 22.

The front escutcheon 11 has an annular lens seat 15 protruding from the front, and an imaging lens (not shown) is mounted in an opening hole 15a of the lens seat 15. This lens seat 15 constitutes the imaging lens mounting member of the present invention.

The outer peripheral surface of the front escutcheon 11
The hole 15a is provided with two holes 16a and 16b, and a part of a jig 30 for adjusting an optical axis, which will be described later, is fitted into the holes 16a and 16b.

The focus adjustment ring 12 is rotatably provided on the outer periphery of the lens seat 15 and rotates within a predetermined angle range with respect to the front escutcheon 11.

The focus adjustment ring 12 faces the bracket 13, and a cam surface is formed on the facing surface. The cam surface is provided on protrusions 41a, 41b, 41c provided on the outer peripheral portion of the bracket 13. When the focus adjustment ring 12 rotates, the cam surface and the protrusions 41a, 41b, 41c are provided. The position changes and the bracket 13
Moves linearly in the optical axis direction. Therefore, the focus can be adjusted by changing the distance between the CCD 20 and the imaging lens.

The bracket 13 has a front escutcheon.
It is configured to be attached to the inner peripheral surface of the image pickup device 11, and constitutes an image sensor attaching member of the present invention. Specifically, as shown in FIG. 2, a pair of tongue-shaped members 1
7 and 18 are formed, and insertion holes 17a and 1
8a is formed, and a pair of fitting members projecting from the back of the front escutcheon 11 (not shown) are inserted into the insertion holes 17a and 18a, and are attached by coil springs 42a and 42b and plate springs 43a and 43b (not shown). Like that.

The bracket 13 has screw holes 13a, 13b.
Are formed, and the bolts 19a, 19b
The mounting substrate 22 is fixed. When the CCD mounting board 22 is fixed to the bracket 13,
Since a square opening 13c is formed in the center of 13, the CCD 20 is exposed to the lens seat 15 through the opening 13c.

On one diagonal line of the square opening hole 13c, a pair of insertion holes 13 partially connected to the opening hole 13c is provided.
d and 13e are provided, and a CCD holding member of a jig 30 for optical axis adjustment described later is inserted into the opening holes 13d and 13e.

Next, a CCD to which the CCD 20 is attached
An image pickup device fixing jig used when the mounting substrate 22 is attached to the bracket 13 will be described with reference to FIGS.

FIG. 3 shows a jig for fixing the image pickup device (hereinafter, referred to as a jig).
FIG. 4 is a perspective view of a jig 30 and a jig 30 and a main body frame of the imaging apparatus when the CCD mounting board 22 is mounted.
It is sectional drawing of 10.

The jig 30 is provided with a CCD 20 to which the CCD 20 is attached in order to align the optical axes of the CCD 20 and an imaging lens (not shown).
An optical axis adjusting jig used when the CD mounting board 22 is mounted on the bracket 13.

The jig 30 is, as shown in FIG.
31, a pair of fitting members 32a and 32b projecting from the pedestal member 31 and fitting into the holes 16 provided in the lens seat 15, and a pair of CCD holding members 33a and 33b projecting from the pedestal member 31 and holding the CCD 20. The fitting members 32a, 32b
The CCD holding members 33a and 33b constitute a fitting member and a holding member in the present invention, respectively.

The jig 30 is fixed by fitting the fitting members 32a and 32b into the holes 16, so that the jig 30 is mounted on the mounting surface of the front escutcheon 11 on which the imaging lens (not shown) is mounted. It is fixed.

The CCD holding members 33a and 33b are formed in an L-shape and are fixed to the pedestal member 31, so that the CCD 20 is held at the distal ends of the CCD holding members 33a and 33b. Therefore, when the jig 30 is fixed, the center axis of the pedestal member 31 and the CCD holding members 33a and 33b are
The center axis of the 20 can be matched, that is, the optical axis can be matched.

Further, the CCD holding members 33a and 33b are
As shown in FIG. 7, the length is at least from the mounting surface of the lens seat 15 to the opening 13c when the bracket 13 is fixed.

Therefore, the jig 30 is inserted into the insertion holes 13d and 13e through the front escutcheon 11 and the CCD holding member 33.
The optical axis of the CCD 20 can be determined when the CCD mounting board 22 is mounted on the bracket 13 by inserting the CCD mounting board 22 through the brackets 13a and 33b.

Next, using the optical axis adjusting jig 30, the CC
A method for mounting the D20 and the CCD mounting board 22 will be described.

First, the cover 14 is attached to the front escutcheon 11, and the focus adjustment ring 12 is fitted to the lens seat 15. At this time, the bracket 13 is attached to the inner peripheral surface of the front escutcheon 11 as described above, and the focus adjustment ring 12 and the bracket 13 are fixed to the front escutcheon 11.

Next, the CCD holding members 33a and 33b are inserted into the lens seat 15 of the front escutcheon 11, and the fitting members 32
a and 32b are holes 16 on the imaging lens mounting surface of the lens seat 15.
a, 16b, and the jig 30 is fixed.

Next, while the CCD 20 previously fixed to the CCD mounting board 22 is fitted to the CCD holding members 33a and 33b, the CCD mounting board 22 is attached to the bracket 13 by bolts 19a and 19b.
Attach using

Next, after attaching the CCD mounting board 22, the jig 30 is removed from the CCD 20 and the lens seat 15.

At this time, since the mounting position of the imaging lens is determined, the optical axis of the imaging lens and the center of the imaging surface of the CCD 20 can be matched when the CCD 20 is mounted on the bracket 13.

As described above, in the present embodiment, when the CCD mounting board 22 is mounted on the bracket 13, the holding members 33 a and 33 b are inserted into the lens seat 15, and the hole 16 a provided on the outer peripheral surface of the lens seat 15 is provided. , 16b, pedestal 31 of jig 30
The fitting members 32a and 32b provided on the
After fixing the front escutcheon 11 to the CCD holding member
The CCD 20 fixed to the CCD mounting board 22 is mounted on 33a, 33b.
Can be fixed, so that the jig 30 can be fixed to the lens seat 15 and the insertion hole 13 provided in the bracket 13 can be fixed.
The holding members 33a and 33b can be inserted through d and 13e, and the CCD 20 can be held. Therefore, there is no need to adjust the mounting position of the CCD 20, and CC
The optical axis position of the imaging lens (not shown) can be easily adjusted with D20.

[0043]

According to the present invention, the jig is fixed to the body frame of the imaging device by providing two or more holes in the body frame of the imaging device when the imaging device is mounted on the body frame of the imaging device. By using two or more insertion holes provided in the imaging device mounting member, the imaging device can be held by a jig, and the mounting position of the imaging device does not need to be adjusted. Since the position can always be kept constant, it is possible to provide an imaging device in which the imaging device can be easily attached to the main body frame of the imaging device.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an embodiment of a main body frame of an imaging apparatus according to the present invention, and is an exploded perspective view of the main body frame of the imaging apparatus.

FIG. 2 is a rear perspective view showing the structure of the bracket according to the embodiment.

FIG. 3 is a view showing one embodiment of an imaging device fixing jig according to the present invention, and is a perspective view of the imaging device fixing jig.

FIG. 4 is a diagram for explaining attachment of a main body frame and an imaging device of an imaging device fixing jig of the imaging device according to the embodiment;

FIG. 5 is an exploded perspective view of a main body frame of a conventional imaging device.

FIG. 6 is a side sectional view of a main body frame of a conventional imaging device.

[Explanation of symbols]

 10 Body frame of the imaging device 11 Front escutcheon 13 Bracket (Imaging element mounting member) 15 Lens seat (Imaging lens mounting member) 16a, 16b Holes 13d, 13e Insertion hole 20 Image sensor (CCD) 21 CCD package 22 CCD mounting board 30 Jig for fixing the image sensor 31 Base member 32a, 32b Fitting member 33a, 33b CCD holding member (holding member)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H043 AE07 AE24 5C022 AA01 AB43 AB45 AC42 AC77 AC78 5C024 AA01 CA33 EA04 FA01 FA16

Claims (3)

[Claims] 1. An imaging lens mounting member for mounting an imaging lens, and an imaging device mounting fixed to an imaging device which is provided coaxially with a mounting position of the imaging lens and photoelectrically converts an image formed via the imaging lens. And at least two holes are provided on the outer peripheral surface of the imaging lens mounting member, and a jig for holding the imaging device is inserted into the imaging device mounting member.
An imaging device comprising at least one insertion hole. 2. A jig for mounting the image pickup device according to claim 1, wherein: a pedestal member; and a fitting member provided in the pedestal member and fitted in a hole provided in an imaging lens mounting member. A plurality of holding members that are provided in the pedestal member and that can be inserted into insertion holes provided in a main body frame of the imaging device, and that hold the imaging device at the distal end thereof. . 3. An imaging device for photoelectrically converting an image formed via an imaging lens, an imaging lens mounting member to which the imaging lens is mounted, and fixing the imaging device coaxially with a mounting position of the imaging lens. A main body frame of an imaging apparatus having an imaging element mounting member, a pedestal member, a fitting member provided in the pedestal member and fitted in a hole provided in the imaging lens mounting member, and the imaging provided in the pedestal member. An imaging element fixing jig having a plurality of holding members that can be inserted into an insertion hole provided in a main body frame of the apparatus and hold the imaging element at a distal end thereof, and an insertion hole of the imaging element mounting member is prepared. After the holding member is inserted into the fitting member, a hole provided on the outer peripheral surface of the imaging lens mounting member is fitted to the fitting member, and then the tip of the holding member is inserted. Characterized in that the image pickup device is held by the image pickup device, and then the image pickup device is attached to the image pickup device attachment member.