KR100736446B1 - Dome type security camera - Google Patents

Abstract

The present invention relates to a dome-type surveillance camera, and in particular, in order to solve the problem that the infrared light is diffused by the viewing window of the dome-shaped cover when emitting the infrared LED dome-shaped monitoring to prevent the incidence of infrared rays by installing a light shielding member around the camera lens It's about the camera.

Here, the dome-shaped surveillance camera is a dome-shaped surveillance camera that is coupled to the dome-shaped cover with a bracket and a circuit portion fixed to the lens portion is installed inside the housing, the transparent window is formed on the upper portion of the housing, wherein the lens portion, A camera lens installed on an upper surface of the case fixed to the bracket; A hole formed at a center thereof so as to be fitted to the outside of the camera lens and supported by an elastic member on the upper surface of the case; A plurality of infrared LEDs installed in the circumferential direction on the substrate; And a hole formed in a center thereof so as to be fitted to the outside of the camera lens, and a cylindrical light blocking member installed on the substrate to isolate the camera lens from the infrared LED.

Description

Dome type surveillance camera {DOME TYPE SECURITY CAMERA}

1 is an exploded perspective view of a dome surveillance camera according to the present invention;

Figure 2a is an exploded perspective view of the lens portion of the dome-shaped surveillance camera according to the present invention,

Figure 2b is a perspective view of the combination of Figure 2a,

3 is a cross-sectional view of the elastic member supporting the substrate of FIG. 2A;

Figure 4a is a side schematic view of the state before coupling the dome-shaped cover to the dome-shaped surveillance camera according to the present invention,

Figure 4b is a side schematic view of the dome-shaped cover state coupled to the dome-shaped surveillance camera according to the present invention,

5 is an exploded perspective view showing a conventional dome type infrared surveillance camera,

6 is a cross-sectional view for explaining that a virtual image (infrared LED) is blocked from being shot due to diffuse reflection by a conventional dome-type infrared surveillance camera.

Explanation of symbols on the main parts of the drawings

1: housing 2: bracket

3: lens part 4: dome cover

5: circuit section 10 bottom

11: outer circumference 12,12a, 37: hole

13: thread groove 14: protrusion

21: first support member 22: second support member

23: third support member 24: horizontal rotating shaft

25: torsion axis 26: hinge

27: long 30: camera lens

31,50: substrate 32: infrared LED

33: light blocking member 34: case

35: elastic member 36: light amount sensor

40: see-through window 41: outer periphery

42: engaging projection 51: connection portion

330: through hole 331: inclined surface

The present invention relates to a dome-type surveillance camera, and in particular, in order to solve the problem that the infrared light is diffused by the viewing window of the dome-shaped cover when emitting the infrared LED dome-shaped monitoring to prevent the incidence of infrared rays by installing a light shielding member around the camera lens It's about the camera.

In general, surveillance cameras are widely used in offices, houses, hospitals, banks and public buildings requiring security, and are widely used for access control and crime prevention. There are many roads for residential or residential areas where various accidents occur frequently.

Most surveillance cameras are installed in spaces such as walls and ceilings that are out of reach of people. Also, apart from surveillance cameras designed to shoot in only one direction, dome-type surveillance cameras have been introduced that can adjust the shooting direction independently regardless of the installation location or space. In addition to controlling the direction in which the surveillance camera can shoot, by applying a lamp using an infrared LED, it is possible to take pictures at night or underground where there is no light (visible light).

However, unlike a surveillance camera having a flat viewing window, an infrared camera is irradiated from the inside of the viewing window and is incident through the camera lens instead of being irradiated only in the space where the subject is located. Therefore, there is a drawback in that the image captured by the dome-shaped surveillance camera and the virtual image of the infrared LED formed by the incident infrared rays are diffusely reflected on the screen photographed by the dome-shaped camera so that the subject cannot be accurately read for monitoring.

The dome-type infrared surveillance camera which eliminates the virtual image shooting due to the conventional diffuse reflection for solving the above problems is disclosed in the Republic of Korea Utility Model Registration No. 342138, an exploded perspective view of this is shown in Figure 5, the virtual image due to the diffuse reflection ( 6 is a cross-sectional view for explaining that the infrared LED is blocked from being photographed.

Conventional dome-type infrared surveillance camera is installed on the bottom of the base 110 so that the camera module 130 is directed in a specific direction by the combination of the bracket and 120, while wrapping the bracket 120 and the camera module 130 In the dome type infrared surveillance camera in which a transparent dome cover 140 is coupled downwardly to the base 110, a through hole 133 for exposing the camera lens 131 is formed at the center thereof, and one side of the camera is formed on the base 110. Fixing panel fixed to the end of the two or more supports that are in contact with the front of the module 130 and coupled to the coupling hole 150 of the bracket 120 so that the through hole 133 is in front of the camera lens 131 ( 132); A plurality of infrared LEDs 134 fixedly disposed in a circular shape on a front surface of the fixing panel 132 at a predetermined distance from the through hole 133; And an opacity having a predetermined height attached to the front surface of the fixing panel 132 along a space between the through hole 133 of the fixing panel 132 and the infrared LED 134 fixedly disposed in the fixing panel 132. It characterized in that it comprises a cylindrical blocking wall 135.

The dome-shaped cover 140 of the dome-type infrared surveillance camera and the general dome-type surveillance camera except the transparent aiming area 143, the remaining portion of the cover 140 is colored opaque so that the surveillance camera is not exposed or the material itself is opaque Use it.

Accordingly, the plurality of infrared LEDs 134 fixedly disposed in a circle around the camera lens 131 in the dome-shaped cover 140 are infrared rays diffused by the blocking wall 135 as shown in FIG. 6. Although the virtual image is not photographed because it is blocked and is not incident to the camera lens 131, the infrared rays irradiated from the infrared LED 134 are irradiated because the inside of the domed cover 140 is opaquely colored or made of an opaque material. There is a problem that can not be transmitted to the surroundings of the subject or do not pass through the domed cover 140.

In addition, the blocking wall 135 is formed of a sponge layer so that the upper end of the blocking wall 135 compressed when the blocking wall 135 is compressed to couple the dome-shaped cover 140 is deformed so that the camera lens 131 is formed. There is a problem that the shooting area of the) is reduced.

In addition, since the infrared LED 134 is installed in a sealed space, an internal temperature may increase due to the heat generated by the infrared LED 134 when the image is taken for a long time, such that abnormalities may occur in the built-in circuit unit and the camera lens 131. In particular, the opaque cylindrical blocking wall 135 formed between the camera lens 131 and the infrared LED 134 is partially melted or burned by the heat generated by the infrared LED 134 so that the dome-shaped cover ( There is a problem in taking a clear image because the smoke is filled inside.

The present invention has been made to solve the above problems, and an object of the present invention is to shield the camera lens and the infrared LED to block the infrared rays incident to the inner surface of the dome-shaped cover when the infrared LED formed around the camera lens is emitted. The present invention provides a dome-type surveillance camera capable of isolating a member, supporting the light blocking member to be in close contact with an inner surface of the dome-shaped cover, and smoothly dissipating heat generated by an infrared LED.

The dome-type surveillance camera according to the present invention for achieving the above object is a dome-shaped surveillance camera is coupled to the dome-shaped cover is formed in the housing and the bracket and the circuit portion is fixed to the inside of the housing, the transparent or semi-transparent see-through window The lens unit may include: a camera lens installed on an upper surface of the case fixed to the bracket; A hole formed at a center thereof so as to be fitted to the outside of the camera lens and supported by an elastic member on the upper surface of the case; A plurality of infrared LEDs installed in the circumferential direction on the substrate; And a hole formed in a center thereof so as to be fitted to the outside of the camera lens, and a cylindrical light blocking member installed on the substrate to isolate the camera lens from the infrared LED.

Here, the elastic member, the one side cover is protruded to the male end to be inserted into the upper plate of the case, the receiving groove is formed in the center of the other end, the one side cover formed with the male screw on the outer peripheral surface of the other end; A spring stored in the receiving groove of the one side cover; A support shaft having one end contacted to the other end of the spring and having a screw groove formed at the center of the other end to fix the substrate with a bolt; And a female screw formed on an inner circumferential surface of one side of the opening to be screwed to the one cover, and the other cover having a hole formed in the center of the other end such that the other end of the support shaft protrudes outward.

In addition, the upper portion of the light blocking member is characterized in that the inclined surface is formed to the outside to be in close contact with the inner surface of the dome-shaped viewing window.

In addition, a through hole is formed at a circumference of the light blocking member so that the infrared LED is exposed and installed.

In addition, the light blocking member is characterized in that formed of a metal material to facilitate the emission of heat generated by the infrared LED.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view of a dome-type surveillance camera according to the present invention, Figure 2a is an exploded perspective view of the lens portion of the dome-shaped surveillance camera according to the present invention, Figure 2b is a combined perspective view of Figure 2a, Figure 3 is a substrate of Figure 2a It is sectional drawing of the supporting elastic member.

According to Figure 1, the dome-shaped surveillance camera according to the present invention is a lens unit in which the circuit part 5, the housing 1 is installed on the bottom surface 10, the camera lens 30 and the infrared LED (LED) 32, etc. are integrally formed. (3), a bracket (2) for fixing the lens portion (3) and the dome-shaped cover (4) coupled to the upper portion of the housing (1).

The housing 1 is formed in a cylindrical shape with an open top, and holes 12 and 12a for extending power and communication cables to one side of the center and the outer peripheral surface 11 of the bottom surface 10 of the housing 1. ) Is formed, and screw grooves 13 for fixing the first supporting member 21 of the bracket 2 are formed at both sides of the center of the bottom surface 10 of the housing 1. Threads are formed in the holes 12 and 12a where the power and communication cables are not installed so that a plug (not shown) is screwed into place.

A locking protrusion 14 is formed on the outer circumferential surface 11 of the housing 1 to be engaged with the engaging protrusion 42 formed on the inner circumferential surface of the outer circumferential portion 41 of the domed cover 4.

An electronic component and a circuit for processing an image signal input from the lens unit 3 and supplying power to the lens unit 3 and the infrared LED 32 are provided on a bottom surface 10 of the housing 1. The circuit part 5 formed in 50 is fixed.

Here, the circuit portion 5 is formed with a connecting portion 51 for connecting the power cable is connected to the lens unit 3 and the infrared LED 32, the image cable is connected to the lens unit 3 A connector (not shown) for connection is formed.

The bracket 2 is a support member 21 connected by rotating shafts 24 and 25 to position the lens unit 3 fixed to the case 34 close to the viewing window 40 of the dome-shaped cover 4. The first and second support members 21 and the first support members are fixed to the bottom surface 10 of the housing 1 by rotating the 22 and 23 to adjust the position of the lens unit 3. 21 is connected to the second support member 22 is horizontally rotated, and is connected to the second support member 22 is composed of a third support member 23 is torsionally rotated.

The first support member 21 is fixed to the center of the bottom surface 10 of the housing 1, but both ends are screwed to the screw groove 13 formed in the bottom surface (10).

One end of the second support member 22 is fixed by a horizontal rotation shaft 24 inserted into the center of the first support member 21, and the other end of the second support member 22 is bent upward in a B-shape, and the other end is bent upwardly. An end hole 27 is formed at an end portion thereof in a longitudinal direction so that the torsion shaft 25 for fixing the third support member 23 is moved upward and downward.

The third support member 23 is fixed to the c-shape by the torsion shaft 25 is inserted into the other end inside (front side) of the second support member 22 is fixed to each other, Holes for inserting the hinge 26 are formed at both ends, respectively. Here, the third support member 23 is formed to be inclined at both ends with respect to the stop part so as to adjust the position of the lens unit 3 by performing a torsional rotation in a state fixed to the second support member 22.

The lens unit 3 is a component for photographing a subject through a varifocal lens, which is a camera lens 30 fixed on a substrate 31, and generating an image signal thereof, and the camera lens 30. And a substrate 31, a plurality of infrared LEDs 32, and a light shielding member 33. Here, the varifocal lens is also referred to as a variable focus lens, and is a lens that can change the focal length by adjusting the distance of the lens, and continuously changes the focal length by moving the additional lens in front of the main lens, but unlike the zoom lens, There is a characteristic that changes shaving.

The camera lens 30 is installed at the center of the upper surface of the case 34 in which an image sensor, an electronic component, and a circuit for processing an image signal are accommodated, and the plurality of infrared LEDs are disposed outside the camera lens 30. 32 and the substrate 31 provided with the light blocking member 33 are fitted and fixed to the upper surface of the case 34. Here, both side surfaces of the case 34 are positioned between both ends of the third support member 23 and fixed to the hinge 26 to be rotatable.

The substrate 31 has a hole formed at the center thereof so as to be fitted to the outside of the camera lens 30, and a plurality of infrared LEDs 32, a light amount sensor 36, and an electronic component are disposed on the substrate 31 in a circumferential direction. Is installed. The substrate 31 is supported to be retractable and resilient by an elastic member 35 inserted into the upper surface of the case 34.

The elastic member 35 retracts the lens unit 3 when the domed cover 4 is coupled to the upper portion of the housing 1 so as to be in contact with the viewing window 40 of the domed cover 4. As the support means, the elastic member 35 performs a function such as a suspension.

2A and 3, the elastic member 35 has a male screw protruding from one end thereof so as to be inserted into the upper surface of the case 34, and a receiving groove is formed in the center of the other end thereof. One side cover 351 is formed with a male screw; A spring 352 stored in the receiving groove of the one side cover 351; A support shaft 353 having one side end in contact with the other end of the spring 352 and having a screw groove formed at the center of the other end to fix the substrate 31 with the bolt 356; And a female screw formed on an inner circumferential surface of one side of the opening part to be screwed to the one side cover 351, and the other cover 354 having a hole formed at the center of the other end such that the other end of the support shaft 353 protrudes outward. have.

The elastic member 35 has the spring 352 and the support shaft 353 in the inner space of the one side cover 351 and the other side cover 354 and the one side cover 351 and the The other side cover 354 is combined and assembled, and the support shaft 353 is accommodated so that the other end of the support shaft 353 protrudes outward through the hole of the other cover 354.

The elastic member 35 is inserted into the corner portion of the upper surface of the case 34, as shown in Figure 2a is installed vertically, respectively, on the support shaft 353 of the elastic member 35 The substrate 31 is fixed by the washer 355 and the bolt 356 while the substrate 31 is placed thereon.

The infrared LED 32 is a lighting means for irradiating infrared rays to a subject at night or in an unlit place, and a plurality of infrared LEDs 32 are provided in the circumferential direction of the substrate 31.

In the dome-type surveillance camera according to the present invention, the infrared LEDs 32 are installed in two rows on the substrate 31 in order to capture a clearer image in a dark space, and the infrared LEDs 32 in the inner row of the light blocking member ( 33 is provided in the through hole 330, and the infrared ray LEDs 32 in the outer row are provided outside the light blocking member 33. In addition, a light quantity sensor (CDS sensor) 36 and an electronic component are provided on the substrate 31 on which the infrared LEDs 32 of the outer row are provided.

The light blocking member 33 is installed on the substrate 31 so that the camera lens 30 and the infrared LED 32 are separated from each other, so that the dome-shaped window 4 of the dome-shaped cover 4 when the infrared LED 32 emits light ( 40 is a light shielding and heat dissipation means for blocking the infrared rays reflected by the incident light and for dissipating heat generated by the infrared LEDs 32, and having a cylindrical shape so as to be fitted to the outside of the camera lens 30. The hole 37 is formed.

A plurality of through-holes 330 are formed in the periphery of the upper surface of the light blocking member 33 so that the infrared LEDs 32 of the inner row are installed and exposed therein, and the heat generated by the infrared LEDs 32 In order to facilitate the release, it is formed of a metal material having excellent thermal conductivity. In addition, when the dome-shaped cover 4 is coupled to the housing 1, the inclined surface 331 is moved outward so that the upper portion of the light blocking member 33 comes into close contact with the inner surface of the see-through window 40 of the dome-shaped cover 4. Formed.

Here, the inclined surface 331 of the light blocking member 33 is driven to the bracket (2) to automatically adjust the angle of the lens unit 3 as well as the contact surface in close contact with the inner surface of the see-through window (40). When the lens unit 3 is rotated by adding a means, the upper part of the light blocking member 33 in contact with the see-through window 40 also serves to naturally slide. In addition, the inclined surface 331 of the light blocking member 33 has the lens unit 3 when the dome-shaped cover 4 is rotatably coupled to the housing 1 while the angle of the lens unit 3 is adjusted. It also serves to allow the upper portion of the light blocking member 33 that is in contact with the see-through window 40 to naturally rotate.

The domed cover 4 is coupled to an upper portion of the housing 1 to protect the circuit unit 5 and the lens unit 3, and is projected by the lens unit 3 to photograph an external subject. The transparent viewing window 40 is formed so that the entire surface is transparent or translucent. In addition, a coupling protrusion 42 is formed on an inner circumferential surface of the outer circumferential portion 41 of the domed cover 4 so as to correspond to the locking protrusion 14 of the housing 1.

Hereinafter, a method for assembling the dome-shaped surveillance camera according to the present invention with the above configuration will be briefly described.

First, the brackets 2 are assembled by connecting the first to third support members 21, 22, and 23 with a rotating shaft.

Next, the light blocking member 33 is fixed on the substrate 31 on which the plurality of LEDs, the light amount sensor 36, and the electronic component are installed, and the substrate 31 is fixed to the center of the case 34. It is inserted into the outside of the camera lens 30 and positioned on the elastic member 35 installed on the upper surface of the case 34, and then fixing the substrate 31 to the elastic member 35 with a bolt 356. The lens unit 3 is assembled.

When the assembly of the bracket 2 and the lens unit 3 is completed, the case 34 is positioned between both ends of the third support member 23 of the bracket 2 and then rotated by the hinge 26. Fix it as much as possible.

Then, the bracket 2 to which the lens unit 3 is coupled is fixed to the bottom surface 10 of the housing 1 in which the circuit unit 5 is installed, and the cable of the lens unit 3 is fixed to the circuit unit ( 5) is connected to the terminal portion and the connector (not shown), respectively, the first to third support members (21, 22, 23) of the bracket (2) by rotating the shooting position of the lens unit (3) Adjust it.

Then, the dome-shaped cover 4 is coupled to the upper portion of the housing 1 to complete the assembly of the dome-shaped surveillance camera according to the present invention.

Figure 4a is a side schematic view of the state before coupling the dome-shaped cover to the dome-shaped surveillance camera according to the present invention.

According to FIG. 4A, the lens unit 3 is operated by rotating the first to third supporting members 21, 22, and 23 in a state where the lens unit 3 is rotatably fixed to the bracket 2. The position so that it faces the subject. At this time, the lens unit 3 is supported by the elastic member 35 installed on the upper surface of the case 34, the elastic member 35 is in the state extended to the maximum by the elastic force of the spring 352 The lens unit 3 is supported.

Figure 4b is a side schematic view of the dome-shaped cover coupled to the dome-shaped surveillance camera according to the present invention.

According to FIG. 4B, the dome-shaped cover 4 is coupled to the upper portion of the housing 1 so that the inner surface of the viewing window 40 of the dome-shaped cover 4 contacts the light blocking member 33 of the lens unit 3. have. At this time, the substrate 31 is retracted while the elastic member 35 supporting the substrate 31 of the lens unit 3 is compressed, and the light blocking member 33 is a spring 352 of the elastic member 35. It is set in contact with the inner surface of the see-through window 40 of the domed cover 4 by the elastic force of the). Since the camera lens 30 of the lens unit 3 is isolated from the infrared LED 32 by the light blocking member 33, infrared light reflected by the viewing window 40 when the infrared LED 32 emits light The incident can be blocked at source.

As described above, the dome-type surveillance camera according to the present invention is used as a camera lens 30 installed in the lens unit 3, but the lens is not limited thereto, the camera lens 30 of the lens unit 3 It is also possible to carry out by using as a general lens (fixed focus lens).

The present invention is not limited to the above-described embodiments, and various modifications and changes can be made by those skilled in the art, which should be regarded as included in the spirit and scope of the present invention as defined in the appended claims. will be.

As described above, the dome-type surveillance camera according to the present invention is provided with a light shielding member around the camera lens to isolate the infrared LED and the light shielding member, thereby causing diffuse reflection on the inner surface of the dome-shaped cover during the emission of the infrared LED formed around the camera lens. It is effective to take a clear image by blocking the incident infrared rays.

In addition, since the light blocking member is supported by the elastic member on the case fixing the camera lens, when the dome-shaped cover is coupled to the upper portion of the housing, the light blocking member fixed to the case is elastic to the spring of the elastic member. By contacting the inner surface of the see-through window of the dome-shaped cover has an effect that can reliably block the infrared incident by the infrared LED.

In addition, since the light blocking member is formed of a metal material having excellent thermal conductivity, there is an effect of smoothly dissipating heat generated when the infrared LED emits light.

In addition, since the inclined surface is formed on the upper part of the light blocking member, not only can be in close contact with the inner surface of the see-through window, but also the driving unit is attached to the bracket to automatically adjust the angle of the lens unit to rotate the lens unit. When the upper portion of the light blocking member in contact with the viewing window can be naturally slid, the lens unit is not rotated in contact with the viewing window when the dome-shaped cover is rotatably coupled to the housing in a state in which the angle of the lens unit is adjusted. There is an effect that the upper portion of the light blocking member can naturally slide.

Claims (5)

A bracket and a circuit portion are installed inside the housing, and the lens portion is mounted on the bracket, and the lens portion includes a case fixed to the bracket, a camera lens installed on the upper surface of the case, and a center to be fitted to the outside of the camera lens. A substrate having a hole in the upper surface of the case, a plurality of infrared LEDs installed in the circumferential direction on the substrate, and having a hole in the center so as to be fitted to the outside of the camera lens. In the dome-shaped surveillance camera comprising a cylindrical light-shielding member is installed on the substrate so as to be isolated, the dome-shaped cover having a transparent or semi-transparent viewing window is coupled to the housing, The substrate 31 is elastically supported on the upper surface of the case 34 through the elastic member 35 so that the light blocking member 33 installed on the substrate 31 when the dome cover 4 is assembled is the dome cover ( 4) Dome type surveillance camera, characterized in that the elastic close contact with the inner surface. The method of claim 1, The elastic member, One side cover protruding from the male screw to be inserted into the upper plate of the case, the receiving groove is formed in the center of the other end, the male cover formed on the outer peripheral surface of the other end; A spring stored in the receiving groove of the one side cover; A support shaft having one end contacted to the other end of the spring and having a screw groove formed at the center of the other end to fix the substrate with a bolt; And A female screw formed on an inner circumferential surface of one side of the opening to be screwed to the one side cover, and the other cover having a hole formed in the center of the other end such that the other end of the support shaft protrudes outward; Dome-type surveillance camera comprising a. delete delete delete

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