JPH09325255A - Electronic camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic camera equipped with a printed circuit board whose effective space is satisfactorily secured without making the printed circuit board large in size. SOLUTION: A pair of engaging grooves 16a and 17a respectively functioning as the mount part to the printed circuit board is formed on the side parts of a 1st finder lens 16 and a 2nd finder lens 17. By separately engaging the engaging grooves 16a and 17a of the 1st and 2nd finder lenses 16 and 17 with notched parts 11a and 12a, the 1st finder lens 16 and the 2nd finder lens 17 are separately engaged with the notched part 11a and the notched part 12a, so that the effective space on the printed circuit board is secured without making the printed circuit board large in size.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic camera for digitizing an image pickup signal of a CCD and recording it on a recording medium, and particularly to an optical finder and a printed circuit board provided in a camera housing of the electronic camera. Regarding configuration.

[0002]

2. Description of the Related Art Generally, a camera as shown in FIG.
A shutter button 2, a film counter, and a liquid crystal display surface 3 for displaying the camera state are arranged on the upper surface of a camera housing 1 forming the camera exterior, and a finder window 4 and a taking lens window 5 are provided on the front surface. ing.

As shown in FIG. 6, inside the camera housing 1, a photographic lens 6 corresponding to the photographic lens window 5 and a finder unit 7 containing a plurality of lenses which are optical elements corresponding to the finder window 4 are incorporated. The first printed circuit board 8a and the second printed circuit board 8b are mainly arranged.

Generally, the finder unit 7 is
Due to the layout of the camera, they are arranged orthogonal to the first printed board 8a and the second printed board 8b, and are held and fixed in a predetermined position by a frame unit 9.

The finder unit 7 is a taking lens 6
The first printed circuit board 8a and the second printed circuit board 8b are disposed orthogonal to the finder unit 7, while being disposed parallel to the axial direction of the. For this reason,
The finder unit 7 and the first printed circuit board 8
In the part where a and the second printed circuit board 8b intersect,
The finder unit 7 includes the first printed circuit board 8
a and the second printed circuit board 8b so as not to project
The finder unit 7 is arranged in the cutout portions 8c and 8d formed by cutting out larger than the outer diameter shape of the finder unit 7.

On the first printed board 8a and the second printed board 8b, a harness 10 for electrically connecting the taking lens 6 and the display element of the finder unit 7 and a display LED for the finder and a print are provided. Since a harness or the like for connecting to the board is required, these first printed board 8a and second printed board 8b are required.
In addition, the space for installing the harness had to be prepared in advance.

As described above, the first printed circuit board 8a
Also, the board area of the printed circuit board is significantly reduced by providing the notches 8c and 8d and the harness space in the second printed circuit board 8b.

[0008]

As described above, the board area of the printed circuit board is provided by providing the printed circuit board with the notch for disposing the finder unit and the space for the harness for connection. Drastically decreases, making it difficult to secure a vacant space on the printed circuit board, which imposes difficulty in circuit design and component mounting, which deteriorates workability and increases assembly time, which causes a cost increase. Was there.

The present invention has been made in view of the above circumstances, and provides an electronic camera capable of improving mounting efficiency without increasing the size of a printed circuit board, having stable quality, and low cost. Is intended.

[0010]

An electronic camera according to a first aspect of the present invention is an electronic camera that digitizes an image signal obtained by an image pickup means and records the digitized image signal on a recording medium, and a print provided in a camera housing. The optical element of the optical finder is held on the substrate.

In the electronic camera of the second invention, the display element for the optical finder is directly mounted on the printed board.

An electronic camera according to a third aspect of the present invention is an electronic camera which digitizes an image signal obtained by an image pickup means and records it on a recording medium, wherein an optical viewfinder is provided on a printed circuit board provided in the camera housing. The finder frame in which the optical element is fixed at a predetermined position is held.

According to the electronic camera of the first invention, the size of the cutout portion for disposing the optical element is reduced.

According to the electronic camera of the second invention, a harness for connecting the display elements is unnecessary. According to the electronic camera of the third aspect of the present invention, the size of the notch for arranging the optical element is reduced, and the accuracy of the arrangement position of the optical element is improved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 relate to a first embodiment of the present invention, FIG. 1 is an explanatory diagram showing a relationship between a substrate and a finder, and FIG. 2 is an explanatory diagram showing a structure for attaching a finder lens to the substrate.

As shown in FIG. 1, a first printed circuit board 11 having a taking lens 13 corresponding to a taking lens window inside a camera housing and a first printed circuit board 11 parallel to the first printed circuit board 11 are provided. Two printed circuit boards 12 are provided, and a first finder lens 16 which is an optical element constituting an optical finder is held in a notch 11a formed in the upper center of the first printed circuit board 11. A notch 12 formed in the upper center of the second printed circuit board 12
A second finder lens 17, which is an optical element forming the optical finder, is held at a.

Notch 11 of the first printed circuit board 11
a and the notch 12a of the second printed circuit board 12 are formed by notching to a width dimension slightly narrower than the width dimension of the first finder lens 16 and the second finder lens 17. When the first finder lens 16 and the second finder lens 17 are arranged in the portion 11a and the notch 12a, respectively, the optical axis of the first finder lens 16 and the optical axis of the second finder lens 17 are It is supposed to match.

As shown in FIG. 2, notches 11a, 1 of the printed circuit boards 11, 12 are formed on the side surfaces of the first finder lens 16 and the second finder lens 17, respectively.
A pair of fitting grooves 16a and 17a are formed which are to be attached to 2a. The width dimensions of the fitting grooves 16a and 17a are slightly wider than the thickness dimensions of the first printed board 11 and the second printed board 12.

Therefore, the first finder lens 1
6 and the fitting groove 17a of the second finder lens 17 into the notch 1 of the first printed circuit board 11.
The first finder lens 1 is provided by engaging with the notch 12a of the first printed circuit board 12 and the first printed circuit board 12.
6 is arranged at a predetermined position of the cutout portion 11a, and the second finder lens 17 is arranged at a predetermined position of the cutout portion 12a.

As shown in the figure, a display element 21 such as an LED for notifying the photographer of the operating state of the camera such as autofocus and exposure is provided on the surface of the second printed circuit board 12 on the side of the finder eyepiece lens 18. It is implemented directly.

As described above, by forming the opening area of the notch formed in the printed board in a shape substantially the same as the size of the optical element for the finder, it is possible to print without increasing the outer dimension of the printed board. It is possible to secure an effective space on the substrate. By this,
The mounting space is greatly improved, and an efficient and reasonable mounting layout is realized.

Further, by mounting the display element such as the LED for the finder directly on the printed circuit board, a harness for connecting the display element and the printed circuit board becomes unnecessary, and the effective space on the printed circuit board is further increased. As the number of parts is increased, the number of parts is reduced and the cost including the assembling work can be reduced.

Further, by forming a fitting groove on the side surface of the finder lens, which becomes a mounting portion to the printed board, the optical element is directly printed without preparing a frame unit for disposing the finder at a predetermined position. It can be easily arranged at a predetermined position of the cutout portion of the substrate.
As a result, the frame unit for holding the optical element for the finder is not required, the cost of parts is reduced, and the assembly workability is significantly improved.

FIG. 3 is an explanatory view showing another construction for mounting the finder lens on the substrate according to the second embodiment of the present invention.

As shown in the figure, in the present embodiment, the first finder lens 16 and the second finder lens 17 are directly connected to the cutout portions 11a and 12a of the first printed circuit board 11 and the second printed circuit board 12, respectively. Instead of arranging the finder lenses 16 and 17 on a finder frame 22 which is formed slightly wider than the finder lenses 16 and 17, the finder frame 22 is arranged on the finder frame 22. The finder placement grooves 11b and 12b are formed by cutting out the board 11 and the second printed board 12, respectively.

The finder frame 22 has a substantially concave cross section.
Fitting grooves 22 to be attached to the first printed circuit board 11 or the second printed circuit board 12 on both outer side surfaces of the
a and 22a are provided.

Further, the concave groove 2 of the finder frame 22
Lens positioning grooves 22c and 22c for arranging the first finder lens 16 and the second finder lens 17 at predetermined positions are provided in 2b.

Further, the first finder lens 16
And the second finder lens 17 is held in the finder frame 22, the finder frame 2
A finder cover 23 that closes the second recessed groove 22b is provided.

By locking the locking claw 23a of the finder cover 23 to the locking portion 22d of the finder frame 22, the finder cover 23 and the finder frame 22 are integrally covered. Other configurations are similar to those of the first embodiment,
The same members are denoted by the same reference numerals and description thereof will be omitted.

Here, the assembling procedure of this embodiment will be described. First, the first finder lens 16 and the second finder lens 17 are arranged in the lens positioning grooves 22c and 22c of the finder frame 22, and the finder cover 23 is covered. As a result, the arrangement positions of the first finder lens 16 and the second finder lens 17 are stably held, and an optical finder with stable optical performance can be obtained.

Next, the first finder lens 16 described above is used.
And the fitting grooves 22a and 22a of the finder frame 22 in which the second finder lens 17 is arranged are engaged with the finder arrangement grooves 11b and 12b formed in the first printed board 11 and the second printed board 12, respectively. . As a result, the finder frame 22 is arranged at a predetermined position, and the first printed circuit board 11 and the second printed circuit board 12 are arranged in parallel at a predetermined distance.

By thus disposing the finder frame having the finder lens in the finder disposition groove of the printed circuit board, an effective space on the printed circuit board can be secured without increasing the area of the printed circuit board. In addition, the positional relationship of the finder lens and the distance between the substrates can be easily set to predetermined values with a simple configuration. As a result, a mounting space is improved, an efficient mounting layout is realized, and a finder mechanism without deterioration of optical performance can be obtained. Other functions and effects are the same as those of the first embodiment.

FIG. 4 is an explanatory view showing another structure for mounting the finder lens on the substrate according to the third embodiment of the present invention.

As shown in the figure, in this embodiment, a first printed board (not shown) and a second printed board 1 are provided.
2 is provided with an opening 25a, and a first finder lens (not shown) and a second finder lens are provided in the opening 25a provided in each printed circuit board.
The finder lens 17 of is arranged. Although the second finder lens 17 is integrally attached to the second printed circuit board 12 by, for example, fitting the pin 26 into the first locking hole 25b in this drawing, the first finder lens 17 is shown in FIG. The finder lens 16 is attached to the first printed board 11 in the same manner.

A colored portion 27, which is colored substantially black, such as black, is provided around the opening 25a on the side of the photographer of the second printed circuit board 12 where the second finder lens 17 is disposed. .

Furthermore, the effective light rays of the subject of the second finder lens 17 are not eclipsed on the second printed circuit board 12, and the second finder lens 17 is used.
A shielding cover 28 is provided to cover the periphery of the. The shield cover 25 is arranged and fixed integrally by inserting a holding claw 28a into a second locking hole 25c formed in the second printed circuit board 12. Other configurations are the same as those in the above-described embodiment, the same members are designated by the same reference numerals, and description thereof will be omitted.

As described above, by directly disposing the finder lens in the opening provided in the printed circuit board, it is possible to secure a sufficient effective space on the printed circuit board without increasing the size of the printed circuit board. it can.

Further, since the colored portion is provided around the opening in which the finder lens is arranged, when the photographer looks into the viewfinder eyepiece, the subject such as green or yellow of the printed circuit board cannot be seen. Only you can see clearly.

Further, by providing the shielding cover for covering the periphery of the second finder lens, when the photographer looks into the finder eyepiece, the components disposed in the camera housing can be seen by the shielding cover. To prevent the subject from seeing.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.

[Supplementary Note] Although the above description has been given based on the embodiments, the present invention includes the following inventions.

(1) An electronic camera which digitizes an image signal obtained by the image pickup means and records it on a recording medium, wherein a printed circuit board provided in a camera housing holds an optical element of an optical finder. An electronic camera characterized in that According to this structure, the notch of the printed circuit board for disposing the optical element becomes small.

(2) The electronic camera as set forth in appendix 1, wherein the display element for the optical finder is directly mounted on a printed board. According to this configuration, a harness for connecting with the display element is unnecessary.

(3) An electronic camera for digitizing an image signal obtained by the image pickup means and recording it on a recording medium, wherein a predetermined optical element of an optical finder is provided on a printed circuit board arranged in a camera housing. An electronic camera characterized in that a finder frame fixed in position is held.
According to this configuration, the size of the notch for arranging the optical element is reduced, and the positional precision of the optical element is improved.

(4) The electronic camera described in appendix 1, wherein the optical element of the optical finder has a shape that can be directly attached to the printed circuit board. According to this configuration, the parts for mounting are unnecessary, so that the space and cost are reduced. (5) The optical element of the optical finder is arranged on the photographer side substrate surface of the printed circuit board. The electronic camera as set forth in appendix 1, wherein the part or its vicinity is substantially blackened. With this configuration, it is possible to prevent the surface of the printed circuit board from being visible when looking through the finder.

(6) The electronic camera as set forth in appendix 1, wherein a shielding means is provided around the optical element of the optical finder.

With this structure, it is possible to prevent the parts in the camera housing from being seen when looking through the viewfinder, and only the subject can be seen.

[0048]

As described above, according to the present invention, it is possible to provide an electronic camera provided with a printed board in which a sufficient effective space is secured on the board without increasing the size of the printed board. .

[Brief description of drawings]

1 and 2 relate to a first embodiment of the present invention, and FIG. 1 is an explanatory view showing a relationship between a substrate and a finder.

FIG. 2 is an explanatory view showing a structure for mounting a finder lens on a substrate.

FIG. 3 is an explanatory view showing another configuration for mounting the finder lens on the substrate according to the second embodiment of the present invention.

FIG. 4 is an explanatory view showing another configuration of mounting the finder lens on the substrate according to the third embodiment of the present invention.

5 and 6 are diagrams for explaining a general camera, and FIG. 5 is an explanatory diagram showing an appearance of the camera.

FIG. 6 is an explanatory diagram showing a relationship between a finder unit and a substrate in a camera housing.

[Explanation of symbols]

 11 ... 1st printed circuit board 12 ... 2nd printed circuit board 16 ... 1st finder lens 17 ... 2nd finder lens

Claims (3)

[Claims] 1. An electronic camera for digitizing an image signal obtained by an image pickup means and recording the digitized image signal on a recording medium, wherein an optical element of an optical finder is held on a printed circuit board arranged in a camera housing. An electronic camera characterized in that. 2. The display element for the optical finder is directly mounted on a printed circuit board.
Electronic camera as described. 3. An electronic camera for digitizing an image signal obtained by an image pickup means and recording it on a recording medium, wherein an optical element of an optical viewfinder is provided at a predetermined position on a printed circuit board arranged in a camera housing. An electronic camera characterized in that the finder frame fixed to the is held.