JPH09200591A - Video camera equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration in the optical performance by providing a lens surface dust elimination device operated in interlocking with application/ interruption of camera power supply so as to keep the lens surface clean under a usual environment without any special attention. SOLUTION: When a power-on/off switch 1 is turned counter clockwise and a camera image pickup mode is selected, a power-on/off switch lever 3 integrated with the power-on 7 off switch 1 is turned. This turning cause a lens cover slide lever 4 to be moved to the right thereby moving a lens cover 8 from a closed position to the open position. A brush 9 arranged to a rear side of the lens cover moves to wipe out the surface of a lens 7 for a series of operations to remove dust depositted on the lens surface. After the end of image pickup, the power-on/off switch 1 is turned clockwise and the power is deenergized, then the lens cover 8 restores to the closed position by a force of a spring 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera device.

[0002]

2. Description of the Related Art Conventionally, a lens surface of a video camera device is protected by a protective member such as a lens cap and a lens cover when a picture is not taken, so that dirt such as dust is not easily attached to the lens surface. It is configured.

[0003]

However, in the above-mentioned conventional example, it is impossible to protect the lens surface from dirt during photographing and when the lens is left without the lens cap. Was causing a decline. In addition, a commercially available cleaning set was required to remove the dirt, and if it was not there, the only option was to wipe it off with a cloth such as a handkerchief to prepare for deterioration of the lens coating.

An object of the invention according to the present application is to enable the lens surface to be kept clean without being conscious of it under normal use, and to prevent deterioration of optical performance.

[0005]

According to the present invention, a brush is attached to the lens side of a lens cover that opens and closes by a sliding operation, and the lens surface is rubbed to remove dust by utilizing the opening and closing operation of the lens cover. , Lens surface dust such as having a structure for removing dust on the lens surface by blowing or sucking air through slits provided on both sides of the lens surface mounting portion from an air pump provided inside the main body of the device It is a video camera device equipped with a removal device.

The invention of claim 1 according to the present application is characterized by comprising a lens surface dust removing device which operates in conjunction with turning on / off of the power supply of the camera.

In the above structure, the lens surface dust removing device interlocked with the power on / off switch operates to remove the dust adhering to the lens surface each time the camera power is turned on / off. This action keeps the lens surface clean at all times,
It enables shooting with the best optical performance.

According to a second aspect of the present invention, a brush is attached to the lens side of the lens cover that opens and closes by a sliding operation, and the lens surface dust is removed by rubbing the lens surface by using the opening and closing operation of the lens cover. It is a removal device.

In the above arrangement, the brush can be operated in accordance with the opening / closing operation of the lens cover to wipe off the dust on the lens.

Further, according to a third aspect of the present invention, the lens surface is blown or sucked by an air pump provided inside the main body of the apparatus through slits provided on both sides of the lens surface mounting portion. It is a lens surface dust removing device having a configuration for removing dust of the above.

In the above structure, dust on the lens surface can be removed by blowing or sucking air through the narrow slits provided on both sides of the lens surface mounting portion.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIGS. 1 to 4 are drawings that best show the features of the present invention. FIG. 1 is a front view of the lens optical axis when the lens cover according to the first embodiment of the present invention is closed. 3 is an explanatory view from the upper surface of FIG. 1. 2 is an explanatory view from the front of the lens optical axis when the lens cover according to the first embodiment of the present invention is opened, and FIG. 4 is an explanatory view from the top of FIG. 1 to 4, 1 is a power on / off switch, 2 is an exterior, 3 is a power on / off switch lever for transmitting the rotation of the power on / off switch 1 to a lens cover slide lever,
4 is a lens cover slide lever for transmitting the movement of the power on / off switch lever 3 to the lens cover.
Is a spring that gives a force to the lens cover 8 in the closing direction, 6 is a spring stopper that stops the spring 5, 7 is a lens, 8 is a lens cover that protects the lens 7 from dust, and 9 is the lens side of the lens cover 8. It is a brush that can be planted on the surface of.

In the above structure, when the power on / off switch 1 is rotated counterclockwise to enter the camera photographing mode, the power on / off switch lever 3 integrated with the power on / off switch 1 is rotated. This rotation moves the lens cover slide lever 4 to the right and moves the position of the lens cover 8 from FIG. 1 to FIG. 2 (FIG. 3 to FIG. 4). The brush 9 arranged on the back surface of the lens cover moves so as to rub the surface of the lens 7 in this series of operations,
Remove dust adhering to the lens surface.

Next, after the photographing is finished, the power on / off switch 1 is rotated to the right to turn off the power.
Is returned to the position shown in FIGS. 2 to 1 (FIGS. 4 to 3) by the force of the spring 5.

By these operations, dust is removed from the lens surface each time the power is turned on and off, and it is possible to always perform shooting with the best optical performance.

(Second Embodiment) FIG. 5 is a block diagram of the entire video camera device, which best represents the features of the present invention.

In the figure, 21 is a camera power switch for turning on / off the camera power, 22 is a power switch / air pump interlocking mechanism for transmitting the switching operation of the camera power switch 21 to an air pump, and 23.
Is an air pump for sucking or blowing air, 2
4 is an air introducing / extracting path that guides air sucked and blown out of the air pump 23 to and from the slit, 25 is a lens mounting exterior, 26 is a slit for blowing air to the lens surface and sucking air, and 27 is A lens, 28 is a system control unit for controlling the entire video camera device, 29 is a recorder unit for recording or reproducing a video signal from the camera signal processing unit and an audio signal from a microphone, and 30 is an image from a CCD. A camera signal processing unit for processing the signal and transmitting it to the recorder unit 29, a CCD unit 31 for converting an optical signal from the lens into an electric signal, 3
2 is a microphone for collecting sound.

In the above structure, the camera power switch 2
When 1 is turned on, the system control unit 28, the camera signal processing unit 30, the recorder unit 29, the microphone unit 32, the CC
The D section 31 starts operating, and the system control section 28
Controls each part. At the same time, the power switch /
A force is applied to the air pump 23 through the air pump interlocking mechanism 22 in a direction to blow air, and the air introduction / exhaust path 24
Air is blown onto the surface of the lens 27 through the slits 26 and the dust is removed.

When the camera power switch 21 is turned off,
A force in the direction of sucking air is applied to the air pump 23 via the power switch / air pump interlocking mechanism 22, and the air is charged through the slit 26 and the inlet / outlet path 24. At the same time when the power switch 21 is turned off, the system control unit 28, the recorder unit 29, the camera signal processing unit 30,
The microphone unit 32 and the CCD unit 31 are powered off and stop operating.

In the video camera device, since the sound is recorded simultaneously with the image during the recording by the camera, the sound is collected from the microphone 32 as a sound at the time of the operation of the air pump 23 and the blowing and sucking of the air from the slit 26. .
Therefore, the present embodiment solves this problem by interlocking with turning the camera power on and off.

By the operation described above, dust is removed from the lens surface each time the camera is powered on and off, and it is always possible to shoot with the best optical performance.

[0022]

As described above, according to the inventions of the claims of the present application, the lens surface is kept clean by not particularly paying attention to it, and also by using a special cleaning set, to always obtain the best optical performance. It becomes possible to shoot.

[Brief description of drawings]

FIG. 1 is an explanatory view from the front of a lens optical axis when a lens cover according to a first embodiment of the present invention is closed.

FIG. 2 is an explanatory view from the front of the lens optical axis when the lens cover according to the first embodiment of the present invention is opened.

FIG. 3 is an explanatory view from the top when the lens cover according to the first embodiment of the present invention is closed.

FIG. 4 is an explanatory view from above when the lens cover according to the first embodiment of the present invention is opened.

FIG. 5 is a block diagram of an entire video camera device according to a second embodiment of the present invention.

[Explanation of symbols]

 1 power on / off switch 2 exterior 3 power on / off switch lever 4 lens cover slide lever 5 spring 6 spring stop 7 lens 8 lens cover 9 brush 21 camera power switch 22 camera power switch / air pump interlocking mechanism 23 air pump 24 air inlet / outlet path 25 lens Mounting exterior 26 Slit 27 Lens 28 System control section 29 Recorder section 30 Camera signal processing section 31 CCD section 32 Microphone section

Claims (3)

[Claims] 1. A video camera device comprising a lens surface dust removing device. 2. The lens surface dust removing device according to claim 1, wherein a brush is attached to the lens side of the lens cover that opens and closes by a sliding operation, and the opening and closing operation of the lens cover is used to rub the lens surface to remove dust. A video camera device having. 3. The lens surface dust removing device according to claim 1, further comprising: an air pump provided inside the main body of the device.
A video camera device having a structure for removing dust on the lens surface by blowing or sucking air through slits provided on both sides of the lens surface mounting portion.