KR200302192Y1 - United Microphone with Camera Using free focus lens - Google Patents

Abstract

The present invention aims to provide a camera-integrated microphone using a prefocus lens that converts video and audio signals input through a CCD camera and a microphone into electrical signals and outputs them through an external display device. The present invention converts the sound signal into an electrical signal and outputs a microphone; A CCD camera integrally formed with the microphone and including a CCD chip converting an image signal into an electrical signal; And a prefocus lens for clearly forming an image of near and far objects on a CCD chip of the CCD camera. The present invention is capable of close-up photography using a prefocus lens, and has the advantage of outputting an interesting and exciting image with sound, which cannot be taken with a general camera, and is easily connected to a recording device such as a home video recorder. It has the effect of replacing expensive video cameras.

Description

United microphone with camera using free focus lens

The present invention relates to a microphone, and more particularly, a CCD camera having a prefocus lens and a camera-integrated microphone using a prefocus lens that converts video and audio signals input through a microphone into electrical signals and outputs them through an external device. It is about.

In general, a microphone is a device that receives an acoustic signal and converts a signal vibrating mechanically by sound waves into an electrical signal, and a camera photographs a subject and exposes it to a film coated with a celluloid photosensitive material, thereby photographing through a chemical reaction of the film. It is a device that allows one subject to be seen or receives light through a CCD (Charge Coupled Device), holds charge proportional to the amount of light, and reproduces the image by measuring the amount of charge retained.

The sound signal converted from the microphone is transmitted to the amplifier, restored and transmitted to the sound through a speaker connected to the amplifier, and the image signal converted from the CCD camera is restored and transmitted to the image through a display device such as a monitor or a television receiver.

However, these microphones and CCD cameras are used individually because of the characteristics of each device. When used together, the microphones must be close to the sound source to convert more acoustic signals into electrical signals. There is a problem that the above is not accessible. In addition, when the CCD camera is photographed near the predetermined distance or more, there is a problem that the acquired image is blurred because the lens of the CCD camera is out of focus.

Accordingly, an object of the present invention is to provide a camera-integrated microphone capable of close-up photography, which can output the input image and sound through an external device.

1 is a block diagram showing the configuration of a camera integrated microphone using a prefocus lens according to the present invention.

FIG. 2 is a configuration diagram showing the prefocus lens configuration of FIG. 1. FIG.

Figure 3 is a perspective view of a camera integrated microphone using a prefocus lens according to the present invention.

4 is a cross-sectional view showing the A-A cross section of FIG.

5 is an electric circuit diagram showing the configuration of a camera integrated microphone using the prefocus lens of FIG.

(Explanation of symbols for the main parts of the drawing)

10: camera integrated microphone 20: first case

30: second case 32: stand

40 cable 100 lens part

110: first lens 120: second lens

130: third lens 140: fourth lens

150: fifth lens 160: sixth lens

200: CCD camera 300: microphone

320: regulator 400: lamp

500: control unit 510: first switch

520: second switch 600: connection

610a: first connector 610b: second connector

620: third connector 630: fourth connector

In order to achieve the above object, the present invention converts an acoustic signal into an electrical signal and outputs the microphone; A CCD camera integrally formed with the microphone and including a CCD chip converting an image signal into an electrical signal; And a prefocus lens for clearly forming an image of near and far objects on a CCD chip of the CCD camera.

In addition, the camera-integrated microphone further comprises a connection means for connecting to the external display device to display the electrical signal output from the CCD camera and the microphone as an image and sound.

The camera integrated microphone may further include a lamp providing a predetermined illuminance in a dark place.

The camera integrated microphone may further include a switch configured to select any one of an output signal of the CCD camera or an external image input signal.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention.

1 is a block diagram showing the configuration of a camera integrated microphone using a prefocus lens according to the present invention. In FIG. 1, the lens unit 100 is coupled to the CCD camera 200, and the CCD camera 200, the microphone 300, and the lamp 400, to which the lens unit 100 is coupled, are connected to the control unit 500. The control unit 500 is connected to the connection unit 600.

FIG. 2 is a configuration diagram illustrating the prefocus lens of FIG. 1, and the prefocus lens will be described with reference to FIG. 2.

The lens unit 100 clearly enters the images of the near and far objects to form an image on the CCD chip of the CCD camera 200. The lens unit 100 has a diameter of an outer circumferential surface larger than that of an inner circumferential surface so as to accommodate a wide angle of view, and a first lens 110 for transmitting a small aberration of incident light, and incident from the first lens 110. A second lens 120 that transmits the received light without loss, a third lens 130 that collects and transmits the light incident from the second lens 120, and light incident from the third lens 130. The fourth lens 140 that collects and transmits the incident light from the fifth lens 150 and the fifth lens 150 that compensate for the aberration of the light incident from the fourth lens 140 to reduce and transmit the aberration of the real image. By configuring the sixth lens 160 to focus and image the light sources to a short focal point, the back focal point of the lens consisting of a plurality of lenses is shortened to make a clear image. In addition, the lenses 110 to 160 are coated with a wavelength of 400 to 950 nanometers so that visible light and infrared light can be easily transmitted.

When the image formed by the prefocus lens unit 100 is input to the CCD chip, the CCD camera 200 converts the input image into an electric signal. Preferably, the CCD camera 200 is a low light camera capable of facilitating operation even at low illuminance, and reproduces an image in color when the subject has illuminance.

The microphone 300 receives an input sound and converts the sound into an electric signal.

The lamp 400 provides a predetermined level of illuminance so that the image can be obtained when the lighting is poor or absent, and the visible light lamp and the infrared lamp can be mounted. Install a reactive infrared camera. In addition, when the lamp 400 is used as an infrared lamp, the wavelength of the lamp is 880 to 940 nano so that the subject in response to the reflected light of the infrared lamp in the CCD camera 200 can be reproduced in black and white.

The controller 500 controls the power applied to the CCD camera 200, the microphone 300, and the lamp 400, and selectively outputs the output signal of the CCD camera 200. Preferably, the control unit 500 is a selection switch.

The connection unit 600 connects an image signal output from the CCD camera 200 and an audio signal output from the microphone 300 with an external device. Preferably, the connection unit 600 is a connector.

3 is a perspective view illustrating a camera integrated microphone using a prefocus lens according to the present invention, and FIG. 4 is a cross-sectional view illustrating the A-A cross section of FIG. 3. Referring to FIGS. 3 and 4, a camera integrated microphone using a prefocus lens will be described below.

In the camera integrated microphone 10, a lens unit 100 is installed at the center of the first case 20, and a CCD camera 200 installed at the second case 30 is disposed at the lower end of the lens unit 100. The microphone 300 is installed on the second case 30, and the lamp 400 is installed on the pedestal 32 extending from the second case 30 to the periphery of the lens unit 100.

One side of the second case 30 is output from the first switch 510 and the CCD camera 200 to control the power applied to the CCD camera 200, the microphone 300, and the lamp 400. A second switch 520 is installed to control the connection of the video signal to an external device.

In addition, one end of the cable 40 is connected to the lower portion of the second case 30, and the other end of the cable 40, the video signal output from the CCD camera 200 and the sound signal output from the microphone 300 Connection portion 600 is formed so that it can be delivered to the external device. The connection unit 600 may include a first connector 610a and an external image device for connecting an image signal output from the CCD camera 200 to be displayed on an external display device (eg, a monitor, a television receiver, etc.). The second connector 610b for receiving an image signal output from the display device and the third connector 620 for connecting the audio signal output from the microphone 300 to an external display device (for example, an amplifier). And a fourth connector 630 for applying power.

FIG. 5 is an electrical circuit diagram illustrating a camera integrated microphone using the prefocus lens of FIG. 3. Referring to FIG. 5, the operation of the camera integrated microphone using the prefocus lens according to the present invention will be described below.

When the first switch 510 is ON, power is supplied to the CCD camera 200, the microphone 300, and the lamp 400. When power is applied, an image input through a prefocus lens is exposed to the CCD chip of the CCD camera 200, and the CCD camera 200 converts the input image signal into an electrical signal to convert the converted electrical signal into a second switch. Output to an external device (not shown) according to the selection of (520). When the selection of the second switch 520 connects the terminal a and the terminal b, the selection of the second switch 520 is transmitted to the display device (not shown) through the first connector 610a. When the c terminal is connected, the video signal output from the CCD camera 200 is blocked, and the video signal of an external device (not shown) input through the second connector 610b is transmitted to the display device.

Meanwhile, the sound signal output from the microphone 300 is connected to an amplifier (not shown) through the third connector and reproduced through a speaker (not shown) connected to the amplifier.

Reference numeral 320 converts the power input as a regulator into a power of a predetermined value and outputs it.

As described above, the present invention is capable of close-up photography using a prefocus lens, and has an advantage of outputting an interesting and exciting image with sound, which cannot be taken with a general camera, and recording a home video recorder or the like. It is easy to connect to the device, replacing the expensive video camera.

In the above, the present invention has been shown and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

Claims (7)

A microphone for converting and outputting an acoustic signal into an electrical signal; A CCD camera integrally formed with the microphone and including a CCD chip converting an image signal into an electrical signal; And And a prefocus lens for clearly forming an image of near and far objects on a CCD chip of the CCD camera. The lens of claim 1, wherein the prefocus lens comprises: a first lens having a diameter of an outer circumference greater than a diameter of an inner circumference so as to accommodate a wide angle of view, and transmitting a small aberration of incident light; A second lens for transmitting the light incident from the first lens without loss; A third lens for collecting and transmitting light incident from the second lens; A fourth lens for collecting and transmitting the light incident from the third lens; A fifth lens for compensating aberration of light incident from the fourth lens to reduce and transmit the aberration of the real image; And And a sixth lens configured to focus the light sources incident from the fifth lens at a short focus and form an image. The prefocus lens of claim 1, wherein the camera integrated microphone further comprises connecting means connected to an external display device to display the CCD camera and the electric signals output from the microphone in an image and sound. Camera integrated microphone. 4. The camera integrated microphone according to claim 3, wherein the connection means comprises a CCD camera image output terminal, a microphone audio output terminal, an external video signal input terminal, and a power input terminal. The camera-integrated microphone according to claim 1, wherein the camera-integrated microphone further includes a lamp providing a predetermined illuminance in a dark place. 6. The camera integrated microphone using a prefocus lens according to claim 5, wherein the lamp is any one of a visible light lamp and an infrared lamp. The camera integrated microphone according to claim 1, wherein the camera integrated microphone further comprises a switch for selecting one of an output signal and an external image input signal of the CCD camera.