JP2003302581A - Electrooptic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptic device which has an electronic control circuit board and is configured so as to enable a heat generating electronic component mounted on the circuit board effectively radiate heat without mounting heat radiation fins on the heat generating electronic component. <P>SOLUTION: The electrooptic device is equipped with a casing 10 comprising a casing main body part 10A and a movable casing part 10B which freely moves between a position where it is stored in the casing main body part and a position where it is drawn out and in the casing, an optical system mount plate 20 which is mounted with a proper optical system (12R, 12L) on one surface and the electronic control circuit board 82 which is adjacently arranged on the other surface of the optical system mount plate are provided. The heat generating electronic component 114 is mounted on the electronic circuit board at a position corresponding to a hollow formed in the casing when the movable casing part is drawn out of the casing main body and the heat generating electronic component is brought into contact with the optical system mount plate in a heat-conductive state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electro-optical device having a casing including a casing body portion and a movable casing portion movable with respect to the casing body portion between a storage position and a withdrawal position. More specifically, regarding the above, an optical system mounting plate for mounting an appropriate optical system on one surface thereof in the casing, and an electronic control circuit board disposed adjacent to the other surface of the optical system mounting plate are provided. And an electronic optical device.

[0002]

2. Description of the Related Art As an example of the above-mentioned electro-optical device, slide type binoculars can be cited. The slide type binoculars is a type of binoculars that is made up of two casing parts slidably engaged with each other so as to expand and contract in the left-right direction, and houses an observation optical system in each casing part. The binoculars are adapted to adjust the interpupillary distance by moving both casing parts relative to each other. The slide type binoculars originally do not require an electronic control circuit board, but when the slide type binoculars are provided with an automatic focusing function or an electronic photographing function, an electronic control circuit board is required. .

Another example of the electro-optical device to which the present invention is applied is an electronic camera using a solid-state image sensor, a so-called digital camera. Among such electronic cameras, there is a digital camera of a type in which compactness when carried is important and a part of the casing is made to expand and contract with respect to the casing main body part. In such a type of digital camera, when carrying, a part of the casing is housed in the casing body part in order to make the whole digital camera compact, while in shooting, a part of the casing is pulled out from the casing body part. It has become. Of course, an electronic control circuit board is essential for a digital camera.

[0004]

By the way, heat generating electronic parts such as a central processing unit (CPU) and a digital signal processor (DSP) are mounted on the electronic control circuit board. In order to prevent such malfunctions of heat-generating electronic components and extend their operating life as much as possible,
It is necessary to effectively dissipate heat from the heat-generating electronic components.
It is generally practiced to attach a heat radiation fin or the like to the heat generating electronic component in order to dissipate the heat from the heat generating electronic component. However, when such a heat radiation fin is attached to the heat generating electronic component, the entire structure becomes bulky. It will be configured. Thus, in an electro-optical device of the type described above, that is, in an electro-optical device having a compact overall structure, it is not possible to attach a radiation fin to the heat-generating electronic component to make the overall structure bulky. It cannot be adopted.

Accordingly, an object of the present invention is an electro-optical device of the type described above, which is configured so that the heat-generating electronic component can be effectively radiated without mounting a heat-radiating fin on the heat-generating electronic component. It is to provide an electro-optical device having the above-mentioned structure.

[0006]

An electro-optical device according to the present invention includes a casing body portion and a movable casing portion movable with respect to the casing body portion between a storage position and a drawing position. In the casing, an optical system mounting plate for mounting an appropriate optical system on one surface and an electronic control circuit board arranged adjacent to the other surface of the optical system mounting plate are provided. . According to the present invention, in such an electro-optical device, as for the mounting position of the heat-generating electronic component with respect to the electronic circuit board, the empty casing formed in the casing when the movable casing portion is moved from the housing position to the pulling position. It is characterized in that it is located at a position corresponding to a place and that the heat-generating electronic component is brought into contact with the optical system mounting plate in a heat conductive manner.

In the electro-optical device according to the present invention, in order to ensure good thermal conductivity between the heat-generating electronic component and the optical system mounting plate, for example, a thermally conductive grease such as silicon grease or a thermally conductive spacer ( It is preferable to interpose a heat dissipation sheet between the heat-generating electronic component and the optical system mounting plate.

The heat-generating electronic component generally has the highest degree of integration and consumes a large amount of power. For example, a CPU or DSP.
And so on. Such a CPU and DSP are configured as a flat electronic package and are shorter than other electronic components. Therefore, in order to make sure that the heat-generating electronic components come into contact with the optical system mounting plate, interpose a thick thermal conductive spacer or mount them on the electronic control circuit board at a higher position than other electronic components. is necessary. Therefore, as a measure for ensuring the contact of the heat-generating electronic component with the optical system mounting plate, a protrusion may be formed on the electronic control circuit board and the heat-generating electronic component may be mounted on this protrusion, or the optical system mounting plate may be mounted. It is also possible to form an embossed area on the plate and use this embossed area as a contact area with the heat-generating electronic component. The provision of the embossed region has the advantage of increasing the strength of the optical system mounting plate.

On the other hand, as a measure for ensuring the contact of the heat generating electronic component with the optical system mounting plate, it is possible to interpose either or both of the heat conductive spacer and the heat conductive grease therebetween. When both are interposed, the heat conductive spacer may be fixed to either one of the heat generating electronic component and the optical system mounting plate. When the heat conductive spacer is fixed to the heat-generating electronic component side, the heat conductive grease is interposed between the optical system mounting plate and the heat conductive spacer, and the heat conductive spacer is fixed to the optical system mounting plate side. At this time, the heat conductive grease is interposed between the heat generating electronic component and the heat conductive spacer.

The electro-optical device according to the present invention can be provided with a function as binoculars, and in this case, a pair of observation optical systems is mounted on the optical system mounting plate.
In order to adjust the distance between the optical axes of the pair of observation optical systems, that is, the interpupillary distance can be adjusted, the optical system mounting plate is attached to the first plate member fixed to the casing main body side and the movable casing part side. A fixed second plate member, one of a pair of observation optical systems is mounted on the first plate member, the other observation optical system is mounted on the second plate member, and the casing main body portion By the relative movement of the movable casing portion with respect to, the distance between the optical axes of the pair of observation optical system is adjustable,
At this time, the heat-generating electronic component is preferably the first optical system mounting plate.
To contact the plate member.

In the preferred embodiment of the binoculars as described above, the movable casing part moves relatively parallel to the casing body part in such a manner that the optical axes of the pair of observation optical systems move within a predetermined plane. Thus, the distance between the optical axes of the pair of observation optical systems, that is, the interpupillary distance is adjusted.

Further, in the embodiment of the binoculars as described above, it is possible to give a focus function to a pair of observation optical systems. In this case, each observation optical system is fixed at a fixed position on its corresponding plate member. The first optical system part installed in the
The second optical system part is movable on the plate member along the optical axis of the observation optical system with respect to the optical system part. In order to focus such a pair of observation optical systems, preferably, a focusing mechanism for causing the movement of the second optical system portion with respect to the first optical system portion is provided on the casing body portion side. , And a wheel unit for manually operating the focusing mechanism.

The wheel portion can be integrally formed as a peripheral extension portion of the wheel barrel, and in this case, the focusing mechanism causes the rotational movement of the wheel portion to move in the second direction relative to the first optical system portion. It is configured as a motion conversion mechanism for converting the movement of the optical system part.

It is also possible to provide a photographing function to the binoculars as described above, and in this case, the photographing optical system is preferably installed in the wheel barrel cylinder. In a preferred embodiment, the photographing optical system is housed in the lens barrel, and the lens barrel is installed in the wheel axle barrel. The lens barrel is movable along the optical axis of the photographing optical system in the wheel barrel for the focusing of the photographing optical system. Preferably, the lens barrel is provided between the wheel barrel and the lens barrel. A focusing mechanism is provided for converting rotational movement of the wheel barrel into movement of the lens barrel along the optical axis of the photographic optical system.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of an electro-optical device according to the present invention will be described with reference to the accompanying drawings.

First, referring to FIG. 1, an internal structure of an optical device according to the present invention is shown, and the optical device is constructed as binoculars with a photographing function. Referring to FIG. 2, II of FIG.
A cross-sectional view along line -II is shown, but some illustrations of components have been omitted to avoid complications. In this embodiment, the binoculars with a photographing function includes a casing 10 having a substantially rectangular parallelepiped shape, and the casing 10 includes a casing body portion 10A and a movable casing portion 10B.

A pair of observation optical systems 1 is provided in the casing 10.
2R and 12L are provided, and the pair of observation optical systems 12
R and 12L have a symmetrical configuration, and are used for right eye observation and left eye observation, respectively. The right observation optical system 12R is incorporated on the casing body 10A side, and the right observation optical system 12R includes an objective lens system 13R, an erecting prism system 14R, and an eyepiece lens system 15R.
An observation window 16R is formed on the front wall of the casing body portion 10A, and the observation window 16R is aligned with the objective lens system 13R of the right observation optical system 12R. The left observation optical system 12L is incorporated in the movable casing portion 10B side, and the left observation optical system 12L includes an objective lens system 13
L, an erecting prism system 14L and an eyepiece lens system 15L are included. An observation window 16L is formed on the front wall of the movable casing portion 10B, and the observation window 16L is aligned with the objective lens system 13L of the left observation optical system 12L.

In the following description, for convenience of explanation, the front side and the rear side are respectively defined as the object side and the eyepiece side with respect to the observation optical system (12R, 12L) of the binoculars with a photographing function, and the right side. The side and the left side are defined as the right side and the left side when facing the eyepiece side of the binoculars with a photographing function.

The movable casing portion 10B is slidably engaged with the casing body portion 10A so as to be pulled out to the left side from the casing body portion 10A. That is, the movable casing portion 10B is movable in the left-right direction between the storage position shown in FIGS. 1 and 2 and the maximum withdrawal position shown in FIGS. 3 and 4. A certain amount of frictional force acts on the sliding engagement surface between the movable casing portion 10B and the casing body portion 10A, and therefore the movable casing portion 10B is moved with respect to the casing body portion 10A. Both parts 10A and 10
It is necessary to apply a pulling force or a pushing force of a predetermined value or more between B. In short, the movable casing part 10B has a storage position (FIGS. 1 and 2) and a maximum withdrawal position (FIG. 3).
And it can be retained by frictional force at any position between the position shown in FIG.

As is apparent from the comparison between FIGS. 1 and 2 and FIGS. 3 and 4, when the movable casing portion 10B is pulled out from the casing body portion 10A, the left observation optical system 12L moves together with the movable casing portion 10B. However, the right side observation optical system 12R is retained on the casing body 10A side. That is, the movable casing part 10
By positioning B at an arbitrary drawn-out position with respect to the casing body portion 10A, the distance between the optical axes of the eyepiece lens system 15R of the right observation optical system 12R and the eyepiece lens system 15L of the left observation optical system 12L, that is, the interpupillary distance, It is possible to adjust. Of course, when the movable casing portion 10B is placed at the storage position with respect to the casing body portion 10A, the distance between the optical axes of the right and left observation optical systems 12R and 12L becomes the minimum value (FIGS. 1 and 2). Part 1
When 0B is placed at the maximum drawing position with respect to the casing body 10A, the distance between the optical axes of the right and left observation optical systems 12R and 12L becomes the maximum value (FIGS. 3 and 4).

In this embodiment, the right observation optical system 1
The 2R objective lens system 13R is housed in the lens barrel 17R, and the lens barrel 17R is mounted on the casing main body portion 10.
Although it is installed at a fixed position with respect to A, the erecting prism system 14R and the eyepiece lens system 15R are the objective lens system 13R.
It is movable in the front-rear direction with respect to the right side, whereby the right observation optical system 12R is focused.
Similarly, the objective lens system 13L of the left observation optical system 12L is housed in the lens barrel 17L.
Is installed at a fixed position with respect to the movable casing portion 10B, and its erecting prism system 14L and eyepiece lens system 1
5L is movable in the front-rear direction with respect to the objective lens system 13L, so that the left observation optical system 12L is focused.

The lens barrel 17R comprises a cylindrical portion 18R for accommodating the objective lens system 13R, and a mounting base 19R integrally formed on the lower side of the cylindrical portion 18R. The mounting base 19R includes an inner mounting portion 19R ₁ extending from the cylindrical portion 18R toward the center side of the casing 10, and an outer mounting portion 19R ₂ extending from the cylindrical portion 18R toward the outer side of the casing 10. While the portion 19R ₁ is formed as a relatively thick side block portion,
The outer mounting portion 19R ₂ has a flat shape.

Similarly, the lens barrel 17L comprises a cylindrical portion 18L for accommodating the objective lens system 13L, and a mounting base 19L integrally formed on the lower side of the cylindrical portion 18L. Further, the mounting base 17L also has an inner mounting portion 19L ₁ extending from the cylindrical portion 18L toward the center of the casing 10,
The outer mounting portion 19L ₂ extends from the cylindrical portion 18L toward the outer side of the casing 10, and the inner mounting portion 19L
L ₁ is formed as a relatively thick side block portion, while outer mounting portion 19 L ₂ is flat.

An optical system mounting plate 20 as shown in FIG. 5 is provided on the bottom side of the casing 10 in order to perform the above-described eye width adjustment and focusing operations. 1 and 3, the optical system mounting plate 20 is omitted in order to avoid complication of the drawing.

The optical system mounting plate 20 is a rectangular fixed plate member 20 that is appropriately fixed to the casing body portion 10A.
A, and a slide plate member 20B slidably arranged on the fixed plate member 20A and appropriately fixed to the movable casing portion 10B. In this embodiment, the fixed plate member 20A and the slide plate member 20B are formed of a suitable metal material, preferably a lightweight metal material such as aluminum or aluminum alloy.

The slide plate member 20B is a fixed plate member 20A.
A rectangular portion 22 having a width substantially equal to the width in the front-back direction of
An extending portion 24 integrally extending from the rectangular portion 22 to the right side. Lens barrel 17 of objective lens system 13R
R is fixedly installed at a predetermined position on the fixed plate member 20A by its mount 19R, and the lens barrel 17L of the objective lens system 13L is mounted by the mount 19L on the slide plate member 2L.
It is fixedly installed at a predetermined position on the rectangular portion 22 of 0B. In FIG. 5, the mount 19R for the lens barrel 17R is attached.
Is shown as a region surrounded by a chain double-dashed line 25R on the fixed plate member 20A, while a fixed place on the mount 19L of the lens barrel 17L is surrounded by a chain double-dashed line 25L on the slide plate member 10B. Shown as a region.

A pair of guide slots 26 are formed in the rectangular portion 22 of the slide plate member 20B, and the extending portion 2 thereof is provided.
A guide slot 27 is formed at 4. On the other hand, the fixed plate 2
2, a pair of guide pins 26 'slidably received in the pair of guide slots 26 and a guide pin 2 slidably received in the guide slot 27.
7'is planted. Each of the guide slots (26, 27) extends in the left-right direction by the same length, and the length is the moving distance of the movable casing portion 10B with respect to the casing body portion 10A, that is, the storage position of the movable casing portion 10B (see FIG. 1).
2) and the maximum withdrawal position of the movable casing part 10B (FIGS. 3 and 4).

As is apparent from FIGS. 2 and 4, the optical system mounting plate 20 is installed in the casing 10 at a proper distance from the bottom thereof, and at this time, the fixing plate member 20A is appropriately arranged on the casing body portion 10A side. It is fixed, and the slide plate member 20B is appropriately fixed to the movable casing portion 10B side. In the illustrated embodiment, in order to fix the slide plate member 20B to the movable casing portion 10B, the attachment piece 2 is provided along a part of the left side edge of the rectangular portion 22.
8 is provided, and this mounting piece 28 is
It is properly fixed to the partition wall 29 of 0B.

Referring to FIGS. 6 and 7, a right mount plate 30R for mounting the erecting prism system 14R of the right observing optical system 12R and an erecting prism system 14L of the left observing optical system 12L are mounted. The left mount plate 30L is shown. Right mount plate 30R and left mount plate 3
Upright plates 32R and 32L are provided along each rear side edge of 0L. As is apparent from FIGS. 1 and 3, the right upright plate 32R is used as a mounting seat for the right eyepiece lens system 15R, and the left upright plate 32L is used as a mounting seat for the left eyepiece lens system 15L.

As shown in FIGS. 6 and 7, a guide shoe 34R is fixed to the bottom surface of the right mount plate 30R along substantially the center of the right edge thereof, and the guide shoe 34R is fixed to the right end of the fixed plate member 20A. A groove 36R is formed to slidably receive the edge (FIG. 7). Similarly, a guide shoe 34L is fixed to the bottom surface of the left mount plate 30L along substantially the center of the left edge thereof, and a groove 36L that slidably receives the left end edge of the slide plate member 20B is formed in the guide shoe 34L. Formed (FIG. 7).

Since FIG. 7 is an elevation view taken along the line VII-VII of FIG. 6, the optical system mounting plate 20 should not be shown in FIG. 7, but for convenience of explanation. ,
In FIG. 7, the optical system mounting plate 20 is shown as a sectional view taken along the line VII-VII in FIG. 5, and the guide shoes 34R and 34L are also shown.
Is also illustrated as a similar cross-sectional view.

As shown in FIGS. 6 and 7, a side wall 38R is provided along the left side edge of the right mount plate 30R, and the bottom side of the side wall 38R is formed as an enlarged portion 40R.
A bore into which the guide rod 42R is slidably inserted is formed in the enlarged portion 40R. The front end portion of the guide rod 42R is inserted into an inner mounting portion of the mounting base 19R of the lens barrel 17R, that is, the hole 43R formed in the side block portion 19R ₁ and appropriately fixed and held, while the rear end of the guide rod 42R is fixed. The portion is inserted into a hole 45R formed in an upright support piece 44R integrally formed on the rear edge side of the fixed plate member 20A, and is appropriately fixed and held. Note that, in FIG. 5, the upright support piece 44R is shown in a cross section so that the hole 45R can be seen, and in FIGS. 1 and 3, the upright support piece 44R inserts the rear end portion of the guide rod 42R into the hole 45R. It is shown in the opened state.

Similarly, a side wall 38L is provided along the right side edge of the left mount plate 30L, the bottom side of the side wall 38L is formed as an enlarged portion 40L, and a guide rod 42L is slidable on the enlarged portion 40L. A bore is formed for insertion. The front end portion of the guide rod 42L has a lens barrel 17
L mounting base 19 L inner mounting portion, ie, side block portion 19
An upright support piece that is inserted through a hole 43L formed in L ₁ and is appropriately fixed and held, while the rear end portion of the guide rod 42L is integrally formed on the rear edge side of the rectangular portion 22 of the slide plate member 20B. It is inserted into a hole 45L formed in 44L and is appropriately fixed and held. The upright support piece 44R
5, the upright support piece 44L is shown in cross section so that its hole 45L is visible, and in FIGS. 1 and 3, the upright support piece 44L is located in its hole 45L behind the guide rod 42L. It is shown with the ends inserted.

Objective lens system 13 of the right observation optical system 12R
Since R is disposed on the front side of the right mount plate 30R, the distance between the objective lens system 13R and the erecting prism system 14R can be adjusted by moving the right mount plate 30R back and forth along the guide rod 42R. Therefore, the focusing operation of the right observing optical system 12R is performed. Similarly, the objective lens system 13 of the left observation optical system 12L
Since L is arranged on the front side of the left mount plate 30L, the distance between the objective lens system 13L and the erecting prism system 14L can be adjusted by moving the left mount plate 30L back and forth along the guide rod 42L. Therefore, the focusing operation of the left observation optical system 12L is performed.

In order to move the right mount plate 30R and the left mount plate 30L synchronously along the respective guide rods 42R and 42L, and to allow the left mount plate 30L to move in the left-right direction with respect to the right mount plate 30R, As best shown in FIG. 6, the right side mounting plate 30R and the left side mounting plate 30L are connected to each other by a retractable connecting means 46.

More specifically, in the present embodiment, the connecting means 4
6 is an enlarged portion 42 of the side wall 40R of the right mount plate 30R.
It is composed of a rod member 46A having a rectangular cross-section and extending leftward from the front end portion of R, and a bifurcated member 46B that slidably receives the rod member 46A. Regarding the lengths of the rod member 46A and the bifurcated member 46B, even when the movable casing portion 10B is pulled out from the storage position (FIGS. 1 and 2) to the maximum withdrawal position (FIGS. 3 and 4), it is forked with the rod member 46A. Sliding engagement with member 46B is maintained. Thus, the right side mounting plate 30R and the left side mounting plate 30L are synchronously moved along the respective guide rods 42R and 42L, regardless of the drawn position of the movable casing part 10B with respect to the casing body part 10A. You can A hole 47 having a rectangular cross section is formed in the rod member 46A, and the function of this hole 47 will be described later.

Referring to FIG. 8, there is shown a vertical sectional view taken along line VIII-VIII of FIG. As is clear from FIGS. 2, 4 and 8, an inner frame structure 48 is provided in the casing 10, and the inner frame structure 48 is appropriately fixed to the casing body portion 10A and the fixing plate member 20A. . The internal frame structure 48 includes a central body portion 48C, a right wing portion 48R integrally projecting rightward from the central body portion 48C, and a suspension hung integrally along the right edge of the right wing portion 48R. It is composed of a wall portion 48S and a left wing-shaped portion 48L integrally protruding leftward from the central body portion 48C.

As shown in FIG. 8, a bore 50 is formed at the front end portion of the central body portion 48C, and the bore 50 is formed in the front wall portion of the casing body portion 10A.
Aligned to 2. Further, a recess portion 52 having a substantially U-shaped cross section is formed on the rear side of the bore 50 in the central body portion 48C, and a rectangular opening portion 54 is formed at the bottom of the recess portion 52.
Is formed. An opening is formed on the top wall of the casing body 10A so as to expose the recess 52,
This opening is closed by a removable opening / closing plate 55.

The tubular assembly 56 is assembled in the recess 52 with the closing plate 55 removed. The tubular assembly 56 is composed of a rolling wheel barrel 57 and a lens barrel 58 concentrically arranged in the rolling barrel 57. Rolling wheel shaft cylinder 5
7 is rotatably held in the recess 52, while the lens barrel 58 remains unrotated as will be described later, but is movable along its central axis. After the assembly of the tubular assembly 56, the opening / closing plate 55 is screwed so as to close the recess 52, for example. A rolling wheel portion 60 is formed as a peripheral expansion portion on the rolling wheel shaft cylinder 57, and the rolling wheel portion 60 is exposed to the outside at the top wall of the casing body portion 10 through an opening 62 formed in the opening / closing plate 55.

A helicoid screw 6 is provided around the roller wheel cylinder 57.
4 is cut, and an annular body 66 is screwed onto the helicoid screw 64. That is, on the inner wall surface of the annular body 66, a plurality of projecting elements adapted to be engaged with the helicoid screw 64 of the rolling wheel cylinder 57 are appropriately arranged at equal intervals, and the annular body 66 is provided with these projecting elements. 57 helicoid screw 64
Screwed on. A flat surface is formed on a part of the outer peripheral surface of the annular body 66, and the flat surface is slidably engaged with the inner wall surface of the opening / closing plate 55. That is, when the wheel shaft cylinder 57 is rotated, the annular body 66 is kept non-rotating without being rotated together with the wheel shaft cylinder 57 due to the engagement between the flat surface of the wheel body cylinder 57 and the inner wall surface of the opening / closing plate 55. . Thus, as the wheel barrel 57 is rotated, the annular body 66 is moved along the longitudinal central axis of the wheel barrel 57 for engagement of the helicoid screw 64 with the projection element on the inner wall surface thereof. The moving direction is determined by the rotating direction of the wheel cylinder 57.

A tongue 67 is projected from the annular body 66, and the tongue 67 is positioned at a diameter with respect to the flat surface of the annular body 66. As best shown in FIG.
It is made to project from the rectangular opening 54 of the central body portion 48C of the inner frame structure 48 and inserted into the hole 47 of the rod member 46A of the connecting means 47. Therefore, when the observer of the binoculars with a photographing function touches the exposed portion of the wheel assembly 60 with, for example, the index finger to rotate the wheel assembly 57, the annular body 62 causes the wheel assembly 57 of the wheel assembly 57 to move as described above. Is moved along the central axis of the longitudinal direction, and thus the mount plates 30R and 30L are moved along the optical axes of the pair of observation optical systems 12R and 12L. In short, the rotational movement of the wheel assembly 60 causes the observation optical system (12R,
12L) The erecting prism system (14R, 14L) and the eyepiece system (15R, 15L) are converted into a linear motion, and thereby the observation optical system (12R, 12L) is focused. .

In this embodiment, for each of the observation optical systems 12R and 12L, for example, the erecting prism system (14R,
14L) and the eyepiece system (15R, 15L) are closest to the objective lens system (13R, 13L).
The lens design is designed to obtain the focus of the observation object from the mail end to infinity, and when observing the observation object from 2 meters to 40 meters ahead, the erecting prism is rotated by the rotation of the wheel 60. The observation object is focused by separating the system and the eyepiece lens system from the objective lens system. Of course, when the erecting prism systems are respectively separated from the objective lens system to the maximum distance, the in-focus object is obtained 2 meters ahead.

A photographic optical system 68 is held in a lens barrel 58 concentrically arranged in the wheel shaft barrel 57, and the photographic optical system 68 includes a first lens group 68A and a second lens group 6.
8B and. On the other hand, the casing body portion 10
A circuit board 70 is attached to the inner wall surface of the rear side wall portion of A, and a solid-state image sensor such as a CC is mounted on the circuit board 70.
A D (charge-coupled device) image sensor 72 is mounted,
The light receiving surface of the CCD image pickup device 72 is a photographing optical system 68.
It is arranged so as to line up with. An opening aligned with the optical axis of the photographing optical system 68 is formed at the rear end of the central body portion 48C of the inner frame structure 48, and an optical low-pass filter 74 is mounted in this opening. . In short, in this embodiment, the binoculars with a photographing function are given a photographing function as a so-called digital camera, and the subject is imaged by the photographing optical system 68 on the light receiving surface of the CCD image pickup element 72 through the optical low pass filter 74.

1 to 4, the optical axis of the photographing optical system 68 is indicated by the reference symbol OS, and the optical axes of the right and left observation optical systems 12R and 12L are indicated by the reference symbols OR and OL. Of course, the right and left observation optical systems 12
The optical axes OR and OL of R and 12L are parallel to each other,
Moreover, it is also parallel to the optical axis OS of the photographing optical system 68. Figure 2
And as shown in FIG. 4, the right and left observation optical systems 12R
The optical axes OR and OL of 12 and 12L are both taking optical system 6
8 is in a plane P parallel to the optical axis OS, and the right and left observation optical systems 12R and 12L move in parallel to the plane P to adjust the distance between the optical axes, that is, the interpupillary distance.

By the way, the photographing optical system 68 has a lens design that can obtain a focus from a near-distance subject at an appropriate distance to a distant-distance subject at infinity, and photography can be performed only within the focusable range. If assumed, the lens barrel 58 need not incorporate a focusing mechanism. However, when it is desired to photograph the binoculars with a photographing function according to the present invention, for example, for a near-field subject two mails ahead, a focusing mechanism is also incorporated in the lens barrel 58. Will be required.

Therefore, in this embodiment, a female screw is formed on the inner peripheral wall surface of the wheel barrel cylinder 57, while a male screw is formed on the outer wall surface of the lens barrel 58, whereby the lens barrel 58 is rotated. It is screwed in 57. The front end of the lens barrel 58 is inserted into the bore 50, and a key groove 76 is formed on the bottom side of the front end as shown in FIG. 8. The key groove 76 is the front end of the lens barrel 58. A predetermined length extends from the edge along the longitudinal direction thereof. On the other hand, a hole is formed in the bottom of the front end of the inner frame structure 48, and a pin element 78 adapted to engage with the key groove 76 is implanted in the hole. In short, the engagement of the key groove 76 and the pin element 78 prevents the lens barrel 58 from rotating.

In this way, the rolling wheel cylinder 57 has its rolling wheel portion 60.
When the lens barrel 58 is rotated by the operation of, the lens barrel 58 is moved along its optical axis. That is, the female screw formed on the inner peripheral wall surface of the wheel barrel 57 and the male screw formed on the outer wall surface of the lens barrel 58 convert the rotational movement of the wheel barrel 57 into the linear movement of the lens barrel 58. Of the lens barrel 58, and the motion converting mechanism functions as a focusing mechanism of the lens barrel 58.

The helicoid screw 64 formed on the outer peripheral wall surface of the rolling wheel cylinder 57 and the female screw formed on the inner peripheral wall surface thereof are opposite to each other, so that the rolling wheel cylinder 57 forms the optical prism system (14R, 14L). And eyepiece system (15R, 1
5L) and the objective lens system (13R, 13L) are rotated so as to be separated from each other, the lens barrel 58
Is moved away from the CCD image sensor 72,
Thus, the foreground subject that is out of the focusable range is C
An image is formed on the light receiving surface of the CD image pickup device 72 in a focused state. Of course, the helicoid screw 6 on the outer peripheral wall surface of the roller wheel cylinder 57
The pitch of No. 4 and the pitch of the female screw on the inner peripheral wall surface are different depending on the optical characteristics of the pair of observation optical systems 12R and 12L and the optical characteristics of the photographing optical system 68.

As shown in FIGS. 1 to 4, a relatively heavy power supply circuit board 80 is provided in the right end portion of the casing body portion 10A, and the power supply circuit board 80 is appropriately provided for the casing body portion 10A. Retained. 2,
As shown in FIGS. 4 and 8, the casing body portion 10A
An electronic control circuit board 82 is provided between the bottom wall of the casing and the optical system mounting plate 20, and the electronic control circuit board 82 is appropriately supported by the bottom wall of the casing body portion 10A.
Various electronic components such as a CPU, a DSP, a memory, and a capacitor are mounted on the electronic control circuit board 82, and the CCD mounting circuit board 70 and the power supply circuit board 80 are electronically controlled via a flat flexible wiring code (not shown). It is properly connected to the circuit board 82.

In this embodiment, as shown in FIGS. 2, 4 and 8, an LCD (liquid crystal display) indicator 84 is arranged on the outer wall surface of the top wall of the casing body 10A, and this LCD display 84 is provided. Has a flat rectangular shape.
One side of the LCD display 84 facing the photographing optical system 6
It is arranged so as to be at right angles to the optical axis of 8, and is rotatable about a rotating shaft 86 along the front side edge thereof. The LCD display 84 is normally placed in the storage position shown by the solid line in FIG. 8, and at this time, the liquid crystal display screen of the LCD display 84 directly opposes and is parallel to the upper wall surface of the top wall of the casing body portion 10A. Because of such a posture, the liquid crystal display screen cannot be seen. When a photographing operation is performed by the CCD image pickup device 72, the LCD display 84 is manually rotated from its storage position to a display position partially shown by a broken line in FIG. Liquid crystal display screen is eyepiece system 1
It can be seen from the 5R and 15L sides.

As mentioned above, the movable casing part 1
The inside of the left end portion of 0B is partitioned by a partition wall 29, and the inside thereof is used as a battery charging chamber 88. As shown in FIG. 2 and FIG. 4, an opening / closing lid 90 is provided on the bottom side of the battery filling chamber 88, and by opening the opening / closing lid 90, the battery filling chamber 88 is filled with the battery 92 or the battery from there. 92 is taken out. In addition,
The opening / closing lid 90 forms a part of the movable casing portion 10B,
It is held in the closed position as shown in FIGS. 2 and 4 by suitable locking means.

As described above, the power supply circuit board 80 is relatively heavy, while the battery 92 itself is relatively heavy. In the present embodiment, the two relatively heavy ones are the casings 10.
The binoculars with a photographing function have a good weight balance because they are arranged at both ends of the.

As shown in FIGS. 1 and 3, the battery charging chamber 88 is provided with two electrode plates 94 and 96 in the front-rear direction, and the two batteries 92 are alternately arranged between the two electrode plates 94 and 96. Filled and placed in series. Electrode plate 9
4 is grounded to the frame, while the electrode plate 96 is a battery 92.
To the power supply circuit board 80 through a suitable power supply casing (not shown). The power supply circuit board 80 is the CCD mounting circuit board 7.
0 CCD image pickup device 72, electronic control circuit board 82 electronic components such as microcomputer and memory, and LCD
Power is supplied to each of the display devices 84 at a predetermined voltage.

As shown in FIGS. 1 to 4, the power supply circuit board 82 can be provided with, for example, a video output terminal connector output 102 as an appropriate external connection connector, and the video output terminal connector 102 is connected to the external connector. For this purpose, a hole 104 is formed in the front wall of the casing body 10A. Further, as shown in FIGS. 2 and 3, a CF card holder 106 may be provided below the electronic control circuit board 84 at the bottom of the casing body 10A, and a CF card is stored in the CF card holder 106 as a memory. It can be inserted and removed as a card.

As shown in FIGS. 2, 4 and 8, a screw hole forming portion 108 is integrally formed at the bottom of the casing body 10A. That is, the screw hole forming portion 108 is formed as a thick wall portion having a circular cross section, and a screw hole 110 is formed in the thick wall portion from the outer bottom wall surface thereof as shown in FIG. The screw hole forming portion 108 is adapted to be screwed to the screw of the tripod platform by the screw hole 110.

As is apparent from the comparison between FIGS. 1 and 2 and FIGS. 3 and 4, when the movable casing portion 10B is moved with respect to the casing body portion 10A from its storage position toward the maximum withdrawal position, Left-side observation optical system 12
A void 112 is formed between L and the central body portion 48C (FIGS. 3 and 4). On the other hand, as described above, the electronic control circuit board 82 has a CP
Various electronic components such as U, DSP, memory, capacitors, etc. are mounted, and in FIG. 2 and FIG. 4, only DSP (Digital Signal Processor) is designated by reference numeral 114 in order to avoid complication of the drawing. . The DSP 114 is mounted on a position corresponding to a space 112 formed when the movable casing portion 10B is moved from its storage position toward the maximum withdrawal position.

More specifically, in this embodiment, as best shown in the partially enlarged view of FIG.
First, a raised portion 116 is formed at a location corresponding to the void 112 on the upper portion 2, and the DSP 114 is mounted on the raised portion 116. The height of the raised portion 116 is such that the top flat surface of the DSP 114 is brought into contact with the back side surface of the fixed plate member 20A of the optical system mounting plate 20, and the back side surface of the fixed plate member 20A and the top flat surface of the DSP 114 are set. In order to enhance the thermal conductivity between the two, a thermally conductive grease such as silicone grease is interposed therebetween.

With this structure, the heat generated by the DSP 114 is efficiently transmitted to the fixed plate member 20A side, and the heat is further transmitted to the slide plate member 20B. As described above, the fixed plate member 20A and the slide plate member 2
OB is formed of a lightweight metal material such as aluminum or an aluminum alloy, and the surface areas of the fixed plate member 20A and the slide plate member 20A are large.
The heat generated in 2 is radiated quickly and efficiently.

It should be noted that when the electronic control circuit board 82 is energized for photographing, that is, the DSP 11
Movable casing part 10BA when 4 is in operation
Is normally pulled out from the casing main body portion 10A, so that a void 112 is formed inside the casing 10, and therefore heat convection of air in the void 112 is likely to occur, and the heat radiation effect of the DSP 114 is promoted. Is to be done. Furthermore, when the movable casing portion 10BA is pulled out from the casing main body portion 10A, the slide plate member 20B is also pulled out from the fixed plate member 20A, so that the total surface area of the optical system mounting plate 20, that is, the heat radiation area is increased. The heat dissipation effect of the DSP 114 is further promoted. As a result, not only the operating life of the DSP 114 is extended, but also its operational reliability is enhanced.

In the above description, the DSP mounted on the electronic control circuit board 82 has been described. However, when the electronic control circuit board 82 is mounted with its heat-generating electronic component such as a CPU, the CPU is similar to the DSP 112. The mounting location of 11 is also a cavity 11 formed when the movable casing portion 10B is moved from its storage position toward the maximum withdrawal position.
The position corresponds to 2.

The DSP 114 is connected to the electronic control circuit board 8
As described above, the reason for mounting on the raised portion 116 on the upper side 2 is that the heat-generating electronic components such as DSP and CPU are configured as flat electronic packages, and are shorter than other electronic components. And therefore the DSP114
This is because other electronic components become an obstacle when trying to contact the fixing plate member 20A.

Referring to FIG. 10, another embodiment of the present invention is shown in which the DSP 114 is mounted directly on the electronic control circuit board 82, but the fixed plate member 20.
In A, an area corresponding to the mounting location of the DSP 114 is embossed, and this embossed area 118 is the DSP.
It is a contact area for the top flat surface of 114. In addition,
Providing an embossed region on the fixed plate member 20A has an advantage of increasing the strength of the fixed plate member 20A. Also in the embodiment shown in FIG. 10, a thermal conductive grease such as silicon grease may be interposed in order to enhance thermal conductivity between the flat top surface of the DSP 114 and the bottom surface of the embossed region 118.

Referring to FIG. 11, yet another embodiment of the present invention is shown, again in this embodiment the DSP 11
4 is directly mounted on the electronic control circuit board 82, and a thick thermally conductive spacer 120 is provided between the fixed plate member 20A and the DSP 114 so as to fill the space. Figure 11
In the illustrated embodiment, the thermally conductive spacer 120 is a DSP.
It may be fixed to the top flat surface of 114, or may be fixed to the back side surface of the fixing plate member 20A. In any case, when the heat conductive spacer 120 is fixed to the DSP 114 side, the heat conductive grease is removed from the solid plate member 20A.
And the heat conductive spacer 120, and when the heat conductive spacer 120 is fixed to the solid plate member 20A side, the heat conductive grease is interposed between the DSP 114 and the heat conductive spacer 120. May be.

In the above-described embodiment, the binoculars with a photographing function are taken up as an example of the electro-optical device, but the present invention can be applied to other electro-optical devices such as a digital camera.

[0065]

As is apparent from the above description, in the electro-optical device according to the present invention, the heat dissipation electronic components mounted on the electronic control circuit board are radiating fins that make the entire structure bulky. Since it is possible to quickly and efficiently dissipate the generated heat without providing the above, it not only contributes to downsizing of the electro-optical device, but also prolongs its operating life and enhances its operational reliability.

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view showing an embodiment of an optical device according to the present invention, in which a movable casing portion is shown in a storage position.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a horizontal sectional view similar to FIG. 1, showing the movable casing portion in the maximum withdrawn position.

FIG. 4 is a similar cross-sectional view of FIG. 2, showing the movable casing portion in the maximum withdrawn position.

5 is a plan view of an optical system mounting plate provided in a casing of the optical device of FIG.

FIG. 6 is a plan view of a right mount plate and a left mount plate installed on the optical system mounting plate shown in FIG.

FIG. 7 is an elevation view taken along the line VII-VII of FIG.
It is a figure which shows the optical system mounting plate drawn there as a sectional view which follows the VII-VII line of FIG.

8 is a vertical cross-sectional view taken along the line VIII-VIII of FIG.

FIG. 9 is a partially enlarged view showing an enlarged main part of the present invention shown in FIG.

FIG. 10 is a partially enlarged view similar to FIG. 9, showing another embodiment of the present invention.

FIG. 11 is a partially enlarged view similar to FIG. 9, showing yet another embodiment of the present invention.

[Explanation of symbols]

10 casing 10A casing body part 10B movable casing part 12R Right observation optical system 12L left observation optical system 20 Optical system mounting plate 20A fixed plate member 20B slide plate member 29 partition walls 30R Right side mounting plate 30L left side mounting plate 46 connection means 46A rod member 46B Bifurcated member 48 Internal frame structure 48C central body part 52 recess 55 Open / close plate 56 Cylindrical assembly 57 Roller wheel cylinder 58 lens barrel 60 Rolling part 66 ring 68 Shooting optical system 70 CCD circuit board 72 CCD image sensor 74 Optical low-pass filter 80 power circuit board 82 Main control circuit board 84 LCD display 112 vacant places 114 Digital Signal Processor (DSP) 116 ridge 118 Embossing area 120 Thermally conductive spacer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G03B 17/02 H04N 5/225 D H04N 5/225 E 5/232 A 5/232 101: 00 // H04N 101: 00 G02B 7/04 D (72) Inventor Gouji Funatsu 2-6-9 Maenocho, Itabashi-ku, Tokyo Asahi Kogaku Kogyo Co., Ltd. F-term (reference) 2H039 AA05 AA06 AB14 2H044 AJ06 CA02 CA04 CA10 DA01 HA01 2H100 BB11 5C022 AA13 AB26 AB43 AC31 AC42 AC43 AC51 AC64 AC70 AC77

Claims (12)

[Claims] 1. An electro-optical device comprising: a casing body portion; and a movable casing portion movable relative to the casing body portion between a storage position and a withdrawal position. Within
An electronic optical device provided with an optical system mounting plate on which an appropriate optical system is mounted on one surface and an electronic control circuit board arranged adjacent to the other surface of the optical system mounting plate, wherein the electronic circuit board is provided. Regarding the mounting position of the heat generating electronic component with respect to the heat generating electronic component, the movable casing portion is located adjacent to a void formed in the casing when the movable casing portion is moved from the housing position to the pulling position. Is brought into contact with the optical system mounting plate in a heat conductive manner. 2. The electro-optical device according to claim 1, wherein a raised portion is formed on the electronic control circuit board, and the heat-generating electronic component is mounted on the raised portion, whereby the optical system mounting plate is mounted. An electro-optical device characterized in that contact of heat-generating electronic components is guaranteed. 3. The electronic optical device according to claim 1, wherein an embossed area is formed on the optical system mounting plate, and the embossed area is in contact with a heat-generating electronic component. Optical device. 4. The electro-optical device according to claim 1, wherein the heat-generating electronic component is brought into contact with the optical system mounting plate via a heat conductive spacer provided therebetween. apparatus. 5. The electron optical device according to claim 1, wherein a pair of observation optical systems are mounted on the optical system mounting plate to provide a function as binoculars. Electro-optical device. 6. The electro-optical device according to claim 5, wherein the optical system mounting plate is a first plate member fixed to the casing body portion side, and a second plate member is fixed to the movable casing portion side. A plate member, one of the pair of observation optical systems is mounted on the first plate member, and the other observation optical system is mounted on the second plate member, and The distance between the optical axes of the pair of observation optical systems is adjustable by relative movement of the movable casing portion, and the heat-generating electronic component is brought into contact with the first plate member of the optical system mounting plate. Electro-optical device. 7. The electro-optical device according to claim 6, wherein the movable casing portion is relatively positioned with respect to the casing body portion in such a manner that the optical axes of the pair of observation optical systems move within a predetermined plane. And an optical axis distance between the optical axes of the pair of observation optical systems is adjusted. 8. The electron optical device according to claim 6, wherein each observation optical system is installed at a fixed position on its corresponding plate member in order to give a focusing function to the pair of observation optical systems. A first optical system portion and a second optical system portion which is movable with respect to the first optical system portion on the plate member along the optical axis of the observation optical system. Electro-optical device. 9. The electron optical device according to claim 8, wherein the second optical unit with respect to the first optical system unit is provided on the casing body portion side for focusing of the pair of observation optical systems. An electro-optical device comprising: a focusing mechanism for causing movement of a system portion; and a wheel unit for manually operating the focusing mechanism. 10. The electro-optical device according to claim 9, wherein the rolling wheel portion is integrally formed as a peripheral extension portion of a rolling wheel barrel, and the focusing mechanism controls the rotational movement of the rolling wheel portion. An electron optical device configured as a motion conversion mechanism for converting the movement of the second optical system portion with respect to the first optical system portion. 11. The electron optical device according to claim 10, wherein a photographing optical system is installed in the roller wheel barrel. 12. The electron optical device according to claim 11, wherein a lens barrel that accommodates the photographing optical system is installed in the roller wheel barrel, and the lens barrel is used for focusing of the photographing optical system. In order to move the lens barrel along the optical axis of the photographing optical system, the rotational movement of the roller barrel is between the roller barrel and the lens barrel. An electro-optical device characterized in that a focusing mechanism for converting into an image is provided.