JPH06326905A - Video camera device - Google Patents

Abstract

PURPOSE:To improve the holding force of a lens block and to simply fix a base by temporarily fixing the lens block on a frame, fitting the base to the frame and holding the frame by a cabinet. CONSTITUTION:This video camera device is provided with a lens block 1 including an image pickup lens in itself, an image pickup element base 33 having an image pickup element 34 fixed to the lens block 1 and mounted so as to be opposed to the image pickup lens and a frame 4 arranged so as to surround the side faces of the block 1 to hold the block 1. The device is also provided with a video signal processing base 44 fixed to the frame 4 so as to process a video signal supplied from the element 34 and the 1st connector 36 for connecting between both the bases 44, 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video provided with a lens block having an image pickup lens built therein, a frame to which the lens block is attached, an image pickup device substrate having an image pickup device mounted thereon, and a video signal processing substrate. The present invention relates to a camera device.

[0002]

2. Description of the Related Art Conventionally, a so-called commercial video camera device used for crime prevention and automation factories has a C mount, which has been used in a conventional 16 mm film camera, as a mounting means for its image pickup lens. It was common to use such a lens mount. This C mount is a kind of shaft joint and has a ring shape, and is mounted in front of the image pickup surface of the video camera body,
A video camera device is configured by fitting and fixing an imaging lens on the front part of the C mount.

Even in such a commercial video camera apparatus, there has been a strong demand in recent years for downsizing and weight reduction. To meet this demand, the size of the image pickup device (CCD) is from 2/3 inch to 1 / inch. The size has been reduced to 2 inches and 1/3 inch. In this case, for example, the image sensor CC
Although the size of D was reduced from 2/3 inch to 1/2 inch, when the auxiliary lens that I had was attached to the video camera body with the C mount, the image sensor CC
Only a part of the light input to the image pickup lens is imaged on D. As a result, the subject is enlarged and displayed, which causes a problem that the image forming screen becomes a telephoto side image.

On the other hand, a video tape recorder (VTR)
In a video camera device (a video camera device with a built-in VTR) having a built-in image pickup device, the size of the image pickup lens is being miniaturized in accordance with the image pickup device CCD to be made smaller, and a compact and high-magnification zoom lens is Now available. Moreover, despite the addition of an autofocus mechanism that can operate with low power consumption, and overall performance has been greatly improved, cost reduction has been realized by mass production. There are many attractive points that video camera devices do not have.

However, in a video camera device with a built-in VTR, an image pickup device substrate on which an image pickup device CCD is mounted is attached to a lens block, and the lens block is screwed to the main substrate. The element substrate is connected by a board-to-board connector so that the two substrates are directly connected by a pair of contacts fixed to each substrate. Further, an auxiliary board is arranged behind the image pickup device CCD, and this auxiliary board is also connected to the main board by a board-to-board connector.

[0006]

However, in the conventional video camera device as described above, the lens block is attached to the main substrate, the lens block is supported by the main substrate, and the main substrate is made of resin. It was structured to be sandwiched from the left and right by the cabinet of. Therefore, there is a problem in that pressing the main board by the resin cabinet without any contradiction so that the lens block is held at a predetermined position is a difficult task.

The present invention has been made in view of the above conventional problems. The lens block is held by temporarily fixing the lens block to the frame, attaching the substrate to the frame, and holding the lens block in the cabinet. The purpose is to increase the power and to be able to attach the substrate comfortably.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and the like and to achieve the above-mentioned object, the present invention provides a lens block having an imaging lens built-in and a side surface of the lens block. A frame which is arranged and to which this lens block is attached, an image pickup element substrate which is fixed to the lens block and has an image pickup element mounted so as to face the image pickup lens, and an image which is fixed to the frame and is supplied from the image pickup element A video signal processing board for processing a signal and a first connector for connecting the video signal processing board and the imaging element board are provided.

The video signal processing board has one contact of the second connector, and the other contact of the second connector is provided on an auxiliary board connected to the lens block through a flexible printed board. The board has a protruding portion that penetrates the side surface of the frame located on the side opposite to the side surface to which the video signal processing board is fixed and projects outward.
By pressing this protrusion, the other contact can be connected to the one contact.

Further, any one or more of the image pickup device substrate, the video signal processing substrate and the auxiliary substrate has an integrated circuit mounted thereon, and one or more of these integrated circuits has a contact piece extended from the frame. Can be brought into contact with each other to radiate heat from the integrated circuit through the frame.

Further, a communication protocol conversion board for program controlling the lens block can be connected to the frame.

[0012]

According to the present invention, the lens block having the image pickup lens is attached to the frame surrounding the side surface, and the video signal processing board and the image pickup element board having the image pickup element fixed to the frame are constituted by the above-described structure. Since the lens block is connected by the first connector, the lens block is securely held by the frame, and the stress applied to the connector can be reduced.

By pressing the protruding portion of the auxiliary board that penetrates the side surface of the frame, one contact provided on the video signal processing board and the other contact provided on the auxiliary board connected to the lens block via the flexible printed board. It is possible to easily and surely connect the second connector composed of the contacts.

Further, since the contact piece extended from the frame is brought into contact with an integrated circuit mounted on any one of the image pickup device substrate, the video signal processing substrate and the auxiliary substrate, heat generated by the integrated circuit is generated. The heat can be dissipated from the frame, and the temperature rise of the integrated circuit can be suppressed.

Further, a communication protocol conversion board can be connected to the frame.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention. As shown in FIG. 1 and the like, 1 is a lens block,
The lens block 1 is composed of a housing that forms a housing having a light receiving hole 1a at one end, and an imaging lens built in the housing. The image pickup lens can be provided with various functions such as autofocus (autofocus), electric zoom (power zoom), and optical finder (including display). 2 shown in FIG.
Is a positioning shaft, and a projection 2a for positioning is formed at the center of the positioning shaft 2. 3 is a screw receiving shaft, and the screw receiving shaft 3 has a screw hole 3a at the center thereof.
Has been drilled.

Reference numeral 4 denotes a frame arranged so as to surround the side surface of the lens block 1. The frame 4 includes a left frame piece 5 having a substantially inverted L shape that surrounds a left side surface and a part of an upper surface of the lens block 1, and an L frame shape right frame piece 6 that also surrounds a right side surface and a lower surface of the lens block 1. It consists of That is, the left frame piece 5 includes a left side face plate 5a facing the left side face of the lens block 1, a top face plate 5b developed at the front part of the upper face of the lens block 1, and an inclined plate 5c connecting these. , And these are integrally formed by one sheet metal. Also, the right frame piece 6
Is the right side plate 6 facing the right side of the lens block 1.
a and a lower surface plate 6 facing the lower surface of the lens block 1
b, which are integrally formed by one sheet metal.

The left frame piece 5 and the right frame piece 6 are tightened and fixed by a plurality of fixing screws 7 to integrally form the frame 4, and the left frame piece 5 has a plurality of lens blocks 1. It is fastened and fixed by a book mounting screw 8. Therefore, the left side plate 5a of the left frame piece 5 is provided with a plurality of positioning holes 9 in which the positioning projections 2a are fitted so as to correspond to the projections 2a. Further, a plurality of insertion holes 10 for screwing the lens block 1 to the left frame piece 5 are formed in the left side plate 5a. The lens block 1 is fixed to the left frame piece 5 by a mounting screw 8 which is attached.

Further, the left side plate 5a is provided with a lower connecting piece 11 bent horizontally at its lower end and a side connecting piece 12 bent vertically at its rear end.
Screw holes 11a and 12a are formed in these connecting pieces 11 and 12, respectively. A fixing piece 13 bent upward is formed at the tip of the lower connecting piece 11, and a fixing piece 14 bent outward is provided at the rear end of the side connecting piece 12, and at the front end thereof. Fixing pieces 15 bent inward are formed respectively, and screw holes 13a to 15a are formed in these fixing pieces 13 to 15, respectively. Further, the left side plate 5a has a plurality of window holes 16
a and 16b are opened, one of the window holes 16a is left uncut and extended, and the extending portion is bent outward to form a contact piece 17. Further, the upper plate 5b is formed with a fixing piece 18 bent downward at a side end thereof, and the fixing piece 18 has a screw hole 18 formed therein.
a is provided.

The right side plate 6a of the right frame piece 6 has a fixed piece 20 bent inward at its front end, a fixed piece 21 bent inward at its rear end, and an attachment piece bent outward at its upper end. 22 and 23 are formed,
The fixing pieces 20, 21 and the mounting pieces 22, 23 are provided with screw holes 20a to 23a, respectively. Further, an opening window 24 is opened in the right side plate 6a, a part of the opening window 24 is left uncut and extended, and the extending portions are bent outward to form mounting pieces 25 and 26. The mounting pieces 25, 26 have screw holes 25a, 2
6a are respectively drilled.

Further, the lower surface plate 6b of the right frame piece 6 is
A tripod sheet metal 28 having a tripod screw hole 27 is fixed by a plurality of mounting screws 29. Then, in order to assemble the right frame piece 6 to the left frame piece 5, the right side plate 6
An insertion hole 30 is formed in the upper corner portion of a, and an insertion hole 31 is formed in the front corner portion of the lower surface plate 6b.

Thus, the left frame piece 5 having the above structure
The right frame piece 6 and the right frame piece 6 are combined as shown in FIG. 4 and the like, and are integrally assembled by a plurality of fixing screws 7.
That is, the insertion hole 3 provided in the right side plate 6a of the right frame piece 6
0 is passed through the threaded portion of the fixing screw 7, and the tip thereof is screwed into the screw hole 18a of the fixed piece 18 provided continuously to the upper surface plate 5b of the left frame piece 5, and the insertion hole formed in the lower surface plate 6b. The right frame piece 6 is assembled to the left frame piece 5 by penetrating the threaded portion of the fixing screw 7 into 31 and screwing the tip thereof into the screw hole 11a of the lower connecting piece 11 and fastening these fixing screws 7. Attached.

Reference numeral 33 shown in FIG. 3 and the like is an image pickup element substrate on which an image pickup element 34 is mounted, and the image pickup element substrate 33 is fastened and fixed to the lens block 1 by a plurality of mounting screws 35. The image pickup device 34 is arranged so as to face the image pickup lens built in the lens block 1, and one contact 36 a of the first connector 36 for taking out a signal from the image pickup device 34 to the outside has an image pickup device. It is fixed to the left frame piece 5 side of the substrate 33. Reference numeral 37 denotes a flexible printed board to which a control signal for controlling the imaging lens is transmitted. One end of the flexible printed board 37 is introduced into the lens block 1 and the other end is fixed to the auxiliary board 38. It is connected to the printed board connector 39.

The auxiliary board 38 has a protruding portion 38 protruding laterally.
a, the projecting portion 38a penetrates a slit 40 provided in the right side plate 6a of the right frame piece 6, and the projecting portion 38a
The tip of a projects outside the right side plate 6a. One contact 41a of the second connector 41 is fixed to the side edge of the auxiliary board 38 opposite to the protruding portion 38a. Necessary electronic components such as an integrated circuit 42 are mounted on the auxiliary board 38.

Reference numeral 44 shown in FIG. 3 and the like denotes a flat plate-shaped video signal processing board, which is fixed to the outside of the left frame piece 5 by a plurality of mounting screws 45. Therefore, a plurality of insertion holes 46 are formed in the video signal processing board 44, and the threaded portion of the mounting screw 45 penetrates each insertion hole 46.
The left frame piece 5 is screwed into the screw hole 14a of the fixing piece 14 continuously provided to the side connecting piece 12, and similarly, the screw hole 13a of the fixing piece 13 continuously provided to the lower connecting piece 11 as well.
The video signal processing board 44 is assembled to the left frame piece 5 by screwing it in and screwing these mounting screws 45.

The integrated circuit 4 is provided on the video signal processing board 44.
7 and other electronic devices are mounted, and the power circuit thereof is housed in the shield case 48. In order to connect a plurality of contacts to the video signal processing board 44, that is, the other contact 36b of the first connector 36, the other contact 41b of the second connector 41, and a separately installed microcomputer or the like. Contacts 49, etc. are attached. The two contacts 36b and 41b are fixed to the inside of the video signal processing board 44, and when the video signal processing board 44 is assembled to the left frame piece 5, one of the contacts 36b is left side plate 5a.
Is extended to the lens block 1 side through a notch provided in the upper part of the, and the other contact 41b is extended to the lens block 1 side through the window hole 16b provided in the lower part of the left side plate 5a. One contact in each pair 36
It is opposed to a and 41a.

The integrated circuit 4 of the video signal processing board 44 is also provided.
A window hole is opened in the mounting portion of 7, and the contact piece 17 provided on the left side face plate 5a is inserted into the window hole during assembly to contact the back surface of the integrated circuit 47. As a result, the heat generated in the integrated circuit 47 is transferred to the contact piece 17, and is transferred from the contact piece 17 to the left frame piece 5.
The temperature rise of 7 can be effectively suppressed.

The video camera device having the above structure can be easily assembled as follows, for example.
That is, first, the image pickup device substrate 33 is attached to the lens block 1 with the attaching screw 35. Next, after fitting the projection 2a of the positioning shaft 2 of the lens block 1 into the positioning hole 9 of the left side face plate 5a of the left frame piece 5 for positioning, the mounting screw 8 is screwed into the screw hole 3a through the insertion hole 10. Then, the lens block 1 is fixed to the left frame piece 5. Next, the other end of the flexible printed board 37 having one end introduced into the lens block 1 is connected to the connector 39 of the auxiliary board 38.

Next, the video signal processing board 44 is made to face the side surface of the left frame piece 5 and pressed toward the lens block 1 side, so that the contact 36b is fitted into the contact 36a forming a pair with the contact 36b. The connector 41 is connected and the contact 41b is connected to the contact 41
The second connector 41 is connected by fitting with a. Then
The mounting screw 45 is inserted through the insertion hole 46 into the screw holes 13a, 14
The video signal processing board 44 is fixed to the left frame piece 5 by screwing into a.

Next, the right frame piece 6 is made to face the right side of the lens block 1, and the protruding portion 38a of the auxiliary substrate 38 is inserted into the slit 40 thereof. Then, the fixing screw 7 is inserted into the lower connecting piece 11 of the left frame piece 5 through the insertion holes 30 and 31.
The right frame piece 6 is fixed to the left frame piece 5 by being screwed into the screw hole 11 a of the above and the screw hole 18 a of the fixing piece 18. As a result, the lens block 1 is accurately positioned with respect to the frame 4, and the assembly of the video camera device according to this embodiment is completed.

In this case, the lens block 1 is the frame 4
Since it is attached to the lens block 1, the lens block 1 can be firmly and accurately supported. Moreover, the first connector 36 and the second connector 41 can reasonably connect the video signal processing board 44 to the image pickup device board 33 and the auxiliary board 38, thereby preventing connection failure of the connector. It can be effectively prevented. In addition, for example, after assembly, the video signal processing board 4 for some reason.
Even when 4 is removed from the frame 4, by assembling as shown in FIG. 5 and pressing the protruding portion 38a of the auxiliary substrate 38 with a finger, the lens block 1 can be operated without applying an external force. The connectors 36 and 41 of the set can be easily and surely connected. Furthermore, since the contact piece 17 protruding from the frame 4 is in contact with the back surface of the integrated circuit 47, the heat generated in the integrated circuit 47 can be released to the frame 4 side, and the temperature rise of the integrated circuit 47 is effective. Can be suppressed.

FIGS. 6 to 7 show a state in which several parts are mounted in order to transfer the video camera device according to the above embodiment as a single camera. Reference numeral 50 shown in FIG. 6 denotes a lens mounting tool mounted on the front portion of the light receiving hole 1a of the lens block 1. Reference numeral 51 denotes a tripod sheet metal fixed to the upper surface plate 5b of the left frame piece 5, and has a tripod screw hole 52 formed therein.

Reference numeral 53 shown in FIG. 6 is a communication protocol conversion board for communication protocol conversion when controlling the program of the camera.
It is screwed to 26 and arranged outside the frame 4. The integrated circuit 5 is mounted on the communication protocol converting board 53.
4) Other electronic components are mounted, which enables control of the computer for program control of the camera. Further, a plurality of switches 55 for control and a connector 56 are attached to the communication protocol conversion board 53, and a flexible printed board 57 is connected to the connector 56. Through this flexible printed board 57. It is connected to an imaging lens or the like in the lens block 1.

Reference numeral 58 is a power supply board, and 59 is a connector board. The connector 6 mounted on the connector board 59.
0 penetrates the panel 61 and is projected rearward. A rear panel fitting 62 is integrally formed on the panel 61, and a rectangular tubular casing 63 is mounted from the front side. A front panel 64 is arranged on the front side of the casing 63, and the front panel 64 is fastened and fixed to the lens mount 50 by a plurality of mounting screws 65. Reference numeral 66 denotes a conversion lens screw provided on the inner peripheral surface of the lens mount 50, and a wide conversion lens, a tele conversion lens, or the like can be attached to the conversion lens screw 66 if necessary. 67 is a rear panel.

As described above, the present invention is not limited to the above embodiment. For example, the left frame piece 5 and the right frame piece 6 are swingably connected by a hinge, and the other side of the hinge is connected to the other side. A detachable locking tool may be provided to open and close between the frame pieces 5 and 6. As described above, the present invention can be variously modified without departing from the spirit thereof.

[0037]

As described above, according to the present invention,
A lens block including an image pickup lens, a frame surrounding the lens block, an image pickup device substrate having an image pickup device, a video signal processing substrate for processing a video signal from the image pickup device, and the video signal Since the lens block is fixed to the frame and the video signal processing board and the image sensor board are rigidly connected by the connector, the weight of the lens block is reduced. The lens block can be received by the frame, the lens block can be firmly and accurately held by the frame, and the stress applied to the connector can be reduced to effectively prevent the occurrence of connection failure and the like. can get.

Further, when the video signal processing board is assembled, by pressing the protruding portion of the auxiliary board that penetrates the side surface of the frame, one contact provided on the video signal processing board and the other provided on the auxiliary board. The effect that the second connector composed of the contacts can be easily and surely connected is obtained.

Further, the contact piece extended from the frame is
By contacting the integrated circuit mounted on the video signal processing board or the like, the heat generated in the integrated circuit can be transferred to the frame and dissipated from the frame to effectively suppress the temperature rise of the integrated circuit. You can also get the effect.

A communication protocol conversion board can be connected to the frame.

[Brief description of drawings]

FIG. 1 is a front perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view from the back side of the same.

FIG. 3 is an exploded perspective view from the back side of the same.

FIG. 4 is a rear view of the same with the auxiliary substrate removed.

FIG. 5 is a rear view of the same with an auxiliary board attached.

FIG. 6 is a perspective view from the front side showing another embodiment of the present invention.

FIG. 7 is a perspective view showing a state in which a casing and the like are attached to FIG.

[Explanation of symbols]

 1 Lens Block 4 Frame 5 Left Frame Piece 6 Right Frame Piece 11, 12 Connecting Piece 13, 14, 15, 18, 20, 21 Fixing Piece 17 Contact Piece 22, 23, 25, 26 Mounting Piece 33 Imaging Element Substrate 34 Imaging Element 36 1st connector 36a, 36b Contact 37, 57 Flexible printed board 38 Auxiliary board 38a Projection part 39, 56, 60 Connector 40 Slit 41 2nd connector 41a, 41b Contact 42, 47, 54 Integrated circuit 44 Video signal processing board 50 Lens Fixture 53 Communication Protocol Conversion Board 58 Power Board 59 Connector Board 63 Casing

Claims (4)

[Claims] 1. A lens block having a built-in image pickup lens, a frame provided so as to surround a side surface of the lens block and having the lens block attached thereto, and fixed to the lens block and facing the image pickup lens. An image pickup device substrate having an image pickup device mounted so that a video signal processing substrate fixed to the frame and processing a video signal supplied from the image pickup device; and a space between the video signal processing substrate and the image pickup device substrate. A video camera device comprising a first connector to be connected. 2. The video signal processing board has one contact of a second connector, and the other contact of the second connector is provided on an auxiliary board connected to the lens block via a flexible printed board. The auxiliary board has a protrusion protruding outward through the side surface of the frame located on the side opposite to the side where the video signal processing board is fixed. 2. The video camera device according to claim 1, wherein the other contact can be connected to the one contact. 3. An integrated circuit is mounted on at least one of the image pickup device substrate, the video signal processing substrate, and the auxiliary substrate, and one or more of these integrated circuits extend from the frame. The video camera device according to claim 1 or 2, wherein the contact pieces are brought into contact with each other to radiate heat from the integrated circuit through the frame. 4. The video camera device according to claim 1, wherein a communication protocol conversion board for program controlling the lens block is connected to the frame.