KR101032985B1 - Camera for Closed Circuit Television capable of Focusing and Zooming In/Out - Google Patents

Abstract

The present invention relates to a surveillance camera capable of adjusting focus and zoom, and more particularly, to focus and zoom control from an outside of the camera, and a control camera capable of adjusting focus and zoom, the adjusting means corresponding to a lens of various sizes. It is about.

According to the present invention, a surveillance camera capable of adjusting focus and zoom includes a housing in which a first guide hole and a second guide hole are formed on an outer circumferential surface thereof, and a lens unit embedded in the housing. A focus controller and a zoom controller configured to rotate in the lens unit to adjust focus and zoom according to rotation; A first rod fixing part coupled with a position selected from an outer circumferential surface of the focus adjusting part and having a first extension piece formed at one side thereof; A focus adjusting rod coupled to the first extension piece and having an end thereof positioned in the first guide hole; A second rod fixing part coupled to a position selected from an outer circumferential surface of the zoom adjusting part and having a second extension piece formed at one side thereof; And a zoom adjustment rod coupled to the second extension piece, the end of which is positioned in the second guide hole.

Surveillance Camera, Focus, Zoom, Lens

Description

Camera with focus and zoom control {Camera for Closed Circuit Television capable of Focusing and Zooming In / Out}

The present invention relates to a surveillance camera capable of adjusting focus and zoom, and more particularly, to focus and zoom control from an outside of the camera, and a control camera capable of adjusting focus and zoom, the adjusting means corresponding to a lens of various sizes. It is about.

In general, a surveillance camera is a photographing device that can check a specific place or object far away and send it to a closed circuit television (CCTV) without checking the abnormality of the place or object being photographed.

It is mainly used for monitoring and preventing theft in places such as department stores, banks, exhibition halls, etc., where a large number of floating populations are used.

Recently, surveillance cameras are equipped with a plurality of infrared light emitting diodes that supplement the amount of light of the lens by irradiating infrared rays from the circumference of the lens to the front, in this case security without a separate lighting device in the dark night that cannot be recognized by human vision Surveillance can be performed.

These surveillance cameras are installed at specific locations for special purposes and monitor the images through remotely displayed monitors to monitor all situations. Therefore, surveillance cameras are usually located on the upper part of the wall of a building to monitor as wide an area as possible. It is installed on the ceiling and set in a specific direction. The lens is then adjusted to focus on the specific position required during the setting.

However, most surveillance cameras on the market are equipped with adjustment means for adjusting the focus and distance of the camera lens to a specific position, so that the focus and zoom state can be set after disassembling the camera body during setting. It must be correct.

Therefore, there is a problem that takes a lot of time for such a setting operation, and also had to inconvenience to dismantle the camera body every time the need to change the focus and zoom state.

In order to solve this problem, recently, surveillance cameras that can adjust focus and zoom without disassembling the camera body have emerged.

An example of such a surveillance camera is a surveillance camera equipped with a lens adjustment device of No. 20-0369533.

Looking specifically at the practical use, including a lens unit including a lens and a lens mount to which the lens is mounted, the lens is formed in the focus control unit and a zoom control unit for rotating operation, the outer side of each control unit An adjusting rod is provided to induce rotational operation. And a guide hole is formed at a predetermined position of the housing so that the adjustment rod is exposed, and provided with an adjustment ring to rotate to the outer circumferential surface of the housing including the guide hole forming portion, the end of the adjustment rod on the inner side of the adjustment ring It is made of a structure that is combined. Therefore, when the operator rotates the adjusting ring, the adjusting unit rotates according to the rotation of the adjusting rod, and thus the focus and zoom adjustment is performed.

However, such a surveillance camera has a problem in that the adjustment ring must be manufactured separately, and since the adjustment ring surrounds the outer circumferential surface of the housing, there is a problem of inflow of rainwater and other foreign substances into the housing through the adjustment ring forming portion.

In addition, the end of the adjustment rod should be located on the guide hole of the housing. If the fabrication is completed and the position of the guide hole is to be applied to the lens part of a different size, the position of the adjusting part provided in the lens part is If there is a large distance away from the position of the guide hole, even if the adjusting rod is coupled to the adjusting portion, the end of the adjusting rod is not located on the guide hole, there is a problem that can not be applied to this lens part. That is, there is a problem in that a housing for each lens unit must be manufactured separately to correspond to lens units of various sizes.

The present invention solved the problem described above, and provides a surveillance camera that can be easily adjusted from the outside of the camera housing with respect to the focus and zoom state, the adjustment rod even if the lens portion of various sizes in the housing of the position of the guide hole is determined Its purpose is to provide a surveillance camera that can be adjusted to the position of the guide hole.

It is also an object of the present invention to provide a surveillance camera that minimizes the inflow of rainwater or other foreign matter into the housing.

In order to solve the above-mentioned problems, the surveillance camera capable of adjusting the focus and zoom according to the present invention includes a housing in which a first guide hole and a second guide hole are formed on an outer circumferential surface thereof, and a lens part embedded in the housing. An adjustable surveillance camera, comprising: a focus controller and a zoom controller configured to rotate in the lens unit to adjust focus and zoom in accordance with rotation; A first rod fixing part coupled with a position selected from an outer circumferential surface of the focus adjusting part and having a first extension piece formed at one side thereof; A focus adjusting rod coupled to the first extension piece and having an end thereof positioned in the first guide hole; A second rod fixing part coupled to a position selected from an outer circumferential surface of the zoom adjusting part and having a second extension piece formed at one side thereof; And a zoom adjustment rod coupled to the second extension piece, the end of which is positioned in the second guide hole.

In addition, the first and second guide holes are provided in close contact with each part of the inner circumferential surface of the housing is formed to cover the first and second guide holes in the inward direction and close, the first and second closure formed with a through hole on each side Further comprising a plate, wherein each end of the focus control rod and the zoom control rod may protrude to the outside of the first, second guide hole through the through hole.

In addition, the first and second guide holes are formed in close contact with each part of the inner circumferential surface of the housing, and cover the first and second guide holes in an inward direction to close the first and second closures having through holes formed at each side. plate; And guide members coupled to end portions of the focus control rod and the zoom control rod through the through-holes so as to protrude outwardly of the first and second guide holes and to be guided along the first and second guide holes. May be further included.

In addition, the first and second guide holes may be further included, the first and second cover is detachably coupled to the housing so as to be closed in the outer direction.

In addition, the first and the second cover is integrally formed while being connected to each other, the end of the tail piece formed integrally extending from one side of the first cover or one side of the second cover may be fixed to the outer peripheral surface of the housing. .

In addition, the first, second cover and the tail piece made of a single body may be made of a rubber or silicone material.

According to the present invention, since the focus adjusting rod and the zoom adjusting rod can be rotated through the first and second guide holes, the focus and the zoom can be adjusted from the outside without disassembling the surveillance camera.

In addition, the first and second rod fixing portions and the first and second extension pieces extending from the first and second rod fixing portions may have different sizes in the already manufactured housing in which the first and second guide holes are formed. There is an advantage that can be applied to various lens portions having.

In addition, the first and second guide holes are closed by the first and second closure plates, thereby preventing the inflow of foreign substances through the first and second guide holes.

In addition, when the first and second covers are further included, the first and second guide holes are doubled together with the first and second closing plates, thereby further improving the blocking property of foreign substances. .

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals denote like members having the same function.

1 is a perspective view of a surveillance camera according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the main portion of the surveillance camera shown in Figure 1, Figure 3 is a cross-sectional view of the surveillance camera shown in Figure 1, Figure 4 is in Figure 1 Bottom view of the surveillance camera shown.

As shown in Figures 1 to 4, the surveillance camera 1, the focus and zoom control according to an embodiment of the present invention, the housing 100, the lens unit 200, the focus control unit 310, The zoom adjusting unit 410, the first and second rod fixing units 320 and 420, the focus adjusting rod 350, and the zoom adjusting rod 450 are included.

The housing 100 provides a space in which the components of the surveillance camera can be built, and as shown, an example made of a cylindrical shape is shown as an example of the shape of the housing 100. However, the shape is not limited thereto.

On the outer circumferential surface of the housing 100, the first guide hole 101 and the second guide hole 102 communicating with the inside of the housing 100 are formed long in the circumferential direction and spaced apart from the front and rear.

The lens unit 200 embedded in the housing 100 is a means for photographing a subject. The lens unit 200 includes a lens 210 and a lens mount 220 for mounting the lens 210. The lens mount 220 includes a lens. The focus adjusting unit 310 and the zoom adjusting unit 410 are provided to rotate in order to adjust the focus FOCUS and the zoom of the 210.

The focus adjusting unit 310 is a means for adjusting the focus of the lens 210. The focus is determined according to a position where light entering through the lens 210 forms on a charge-coupled device (CCD). When the adjusting unit 310 is rotated to the left or the right, as the lens 210 is moved forward or backward, the aperture of the lens 210 is enlarged or reduced so that the image formed on the CCD is blurred or sharply adjusted.

The focus adjusting unit 310 may have a width in the front and rear direction defined in a range of a predetermined size of the lens unit 200, specifically, a predetermined size of the lens mount 220. In the conventional surveillance camera that can adjust focus and zoom, a focus adjusting rod for rotating the focus adjusting unit is coupled to an outer circumferential surface of the focus adjusting unit within the predetermined width range. However, since the lens unit may be manufactured in various sizes, in the case of using a lens unit of a different size, the position of the focus adjusting unit may be greatly spaced from the first guide hole 101 or the focus may be set at a predetermined position of the lens unit. Due to the narrow width of the adjusting part, when the coupling position of the focus adjusting rod is spaced apart from the first guide hole 101, the housing 100 in which the position of the first guide hole 101 is already determined cannot be used. As a result, there is a problem in that a separate housing must be newly manufactured so that the first guide hole 101 is formed at a position corresponding to the position of the focus adjustment rod.

Therefore, the present embodiment includes a first rod fixing part 320 to solve this problem.

The first rod fixing part 320 is coupled by selecting a position on the outer circumferential surface of the focus adjusting part 310.

For example, as shown in FIG. 2, a suitable position is selected in the width direction of the outer circumferential surface of the focus adjusting part 310 to form a screw groove, and the screw is also formed on the first rod fixing part 320. An example of a structure in which the first rod fixing part 320 is coupled by a screw member by forming a screw hole corresponding to the groove may be presented. In addition, although not shown, a plurality of screw grooves formed along the width direction of the outer circumferential surface of the focus adjustment unit 310 are formed, and the first rod fixing part 320 is coupled by selecting a screw groove at an appropriate position among the screw grooves. You may.

Alternatively, although not shown, the first rod fixing part 320 may be formed in an annular shape but have a proper inner diameter so that the first rod fixing part 320 may be coupled as if some interference is imposed on the outer circumferential surface of the focus adjusting part 310. May be combined to select and position.

Alternatively, although not shown, the first rod fixing part 320 is formed in an annular shape, and forms a screw hole on one side of the first rod fixing part 320, and the screw member is coupled to the screw hole, so that the first rod fixing part is formed. An example of the coupling structure for pressing the outer surface of the 320 in the direction of the focus adjusting unit 310 may be presented, and by the coupling structure, an appropriate coupling position of the first rod fixing part 320 may be selected.

The first rod fixing part 320 has a first extension piece 321 is formed on one side. The first extension piece 321 has a first rod fixing part 320 so that the end of the focus adjustment rod 350 may be located in the first guide hole 101 in a state where the focus adjustment rod 350 is coupled to be described later. It is formed extending from one side of. The first extension piece 321 is, as described above, when the position of the focus adjusting unit 310 is spaced apart from the first guide hole 101 by the arrangement position of the lens unit 200, which will be described later. The focus adjustment rod 350 is a means for connecting the focus adjustment unit 310 and the end of the focus adjustment rod 350 is positioned in the first guide hole 101. The first extension piece 321 may have an extension length in consideration of the above-described function.

The focus adjusting rod 350 is coupled to the first extension piece 321 described above as a rod-shaped member, and is disposed to face the first guide hole 101 vertically in the housing 100. The focus adjustment rod 350 is rotated along the first guide hole 101 to the left or right side of the focus adjustment rod 350 through the first rod fixing portion 320 described above so that the focus adjustment unit 310 rotates together. The first rod fixing part 320 is connected to the focus adjusting part 310 despite the position of the focus adjusting part 310 spaced apart from the position of the first guide hole 101 as described above. The extension piece 321 may be connected to the focus adjusting unit 310 while making the first guide hole 101 vertically, and thus the end thereof is disposed in the first guide hole 101.

The zoom control unit 410 is a means for enlarging or reducing a subject by adjusting the distance of the lens 210. When the zoom control unit 410 is rotated to the left or the right, the lens 210 moves forward and backward and moves to the CCD. The size of the input image is adjusted. The zoom function is performed to enlarge or reduce the subject.

Like the focus adjuster 310, the zoom adjuster 410 may have a width in the front-rear direction defined in a predetermined size range of the lens unit 200. Accordingly, the zoom adjusting unit 410 has the same function as that of the first rod fixing unit 320, that is, the zoom adjusting rod 450 is connected to the zoom adjusting unit 410. The second rod fixing part 420 is provided to be positioned in the second guide hole 102, and the second extension piece 421 is formed to extend on one side of the second rod fixing part 420.

The structure in which the second rod fixing part 420 is coupled to the zoom adjusting unit 410 may also be configured in the same structure as the structure in which the first rod fixing unit 320 is coupled to the focus adjusting unit 310.

On the other hand, the second extension piece 421 extending from the second rod fixing portion 420 may simply be formed extending in one direction from the second rod fixing portion 420, as shown in FIG. It may be extended in one direction after being bent. The outer diameter of the zoom adjusting unit 410 may be smaller than the outer diameter of the focus adjusting unit 310 according to the shape of the lens mount 220. In this case, the rotation radius of the second extension piece 421 and the first extension piece may be reduced. When the second extension piece 421 is bent outwardly and extends in one direction so that the rotation radius of 321 is the same, the focus adjustment rod 350 and the zoom adjustment rod 450 manufactured to the same length can be used. That is, the focus adjusting rod 350 and the zoom adjusting rod 450 may be manufactured and used in the same shape and size without having to separately manufacture the focus adjusting rod 350 and the different lengths.

The zoom adjustment rod 450 is coupled to the second extension piece 421. The zoom adjustment rod 450 is coupled to the second extension piece 421 in the housing 100 by a rod-shaped member and is disposed to face vertically to the second guide hole 102. Similar to the focus adjustment rod 350, the zoom adjustment rod 450 also adjusts the zoom through the second rod fixing part 420 so that the zoom adjustment unit 410 rotates as the end is rotated left or right. Is connected to the portion 410, the second extension piece 421 is directed toward the second guide hole 102 vertically, so that the end is positioned in the second guide hole 102, the zoom adjustment unit ( 410 may be connected.

Each end of the focus adjusting rod 350 and the zoom adjusting rod 450 is positioned in the first and second guide holes 101 and 102, so that the first and second guide holes 101 and 102 are closed. The focus adjustment rod 350 and the zoom adjustment rod 450 may be rotated through the first and second guide holes 101 and 102.

In this case, since the first and second guide holes 101 and 102 are formed to communicate with the inside of the housing 100, rainwater and other foreign matter are introduced into the housing 100 through the first and second guide holes 101 and 102. Can be introduced.

Therefore, in order to block the inflow of foreign matter, the first and second closing plates 510 and 520 may be further included in the present embodiment, as shown in FIGS. 2 and 3.

The first and second closure plates 510 and 520 are provided to close the first and second guide holes 101 and 102 in the inward direction of the housing 100, and are provided in close contact with the inner circumferential surface of the housing 100. . In the illustrated example, the first and second closing plates 510 and 520 have a plate shape and a curved shape. However, the first and second closing plates 510 and 520 are not limited to these shapes as long as the first and second guide holes 101 and 102 can be closed. It can be made in various shapes without. In addition, the first and second closure plates 510 and 520 preferably have some elasticity so that both ends of the first and second closure plates 510 and 520 may be held in close contact with each other without any other means.

In addition, through holes 511 and 521 may be formed at each side of the first and second closure plates 510 and 520.

Although not shown, the through holes 511 and 521 may protrude to the outside of the first and second guide holes 101 and 102 while penetrating the respective ends of the focus adjustment rod 350 and the zoom adjustment rod 450. have. Since the ends of the first and second closing plates 510 and 520 are in a state where the ends of the focus adjusting rod 350 and the zoom adjusting rod 450 are connected to each other, the first and second closing plates 510 and 520 do not leave the first and second guide holes 101 and 102. When the end of the focus adjusting rod 350 protruding outwardly of the first and second guide holes 101 and 102 and the end of the zoom adjusting rod 450 are rotated with a finger, the focus adjusting rod 350 is rotated. It rotates with the zoom adjustment rod 450. At this time, each end of the focus adjusting rod 350 and the zoom adjusting rod 450 is positioned at any position in the longitudinal direction of the first and second guide holes 101 and 102. ) Is kept closed from the inner side by the first and second closing plates 510 and 520. Therefore, foreign material inflow through the first and second guide holes 101 and 102 may be blocked.

Alternatively, as illustrated in FIGS. 2 and 3, the guide members 351 and 451 pass through the through holes 511 and 521 and may be coupled to the ends of the focus adjusting rod 350 and the zoom adjusting rod 450. have. The guide members 351 and 451 are coupled to the focus adjusting rod 350 and the zoom adjusting rod 450 by various coupling methods such as screwing and protrude outward of the first and second guide holes 101 and 102. It may be guided along the first and second guide holes 101 and 102.

In this case as well, since the first and second closing plates 510 and 520 are placed through the guide members 351 and 451, the focus adjustment rod 350 and the zoom adjustment rod 450 as described above. Rotate together according to the rotation and maintain the closed state of the first and second guide holes (101, 102).

Meanwhile, in addition to the functions of the first and second closure plates 510 and 520, the first and second guide holes 101 and 2 may be blocked to double inflow of foreign substances through the first and second guide holes 101 and 102. 102, the first and second covers 610 and 620 may be coupled to the formation site.

The first and second covers 610 and 620 are detachably coupled to the housing 100 so as to cover the first and second guide holes 101 and 102 in an outer direction. In this case, when the first and second covers 610 and 620 are separated from the first and second guide holes 101 and 102, the first and second covers 610 and 620 may be integrally formed while being connected to each other as shown in FIG. 4. . The first and second covers 610 and 620 are suspended from the first and second covers 610 and 620 so that the first and second covers 610 and 620 are suspended from the housing 100 so as not to be lost. One side of the two cover 620 may be formed integrally extending the tail piece 621, the tail piece 621 is fixed to the outer peripheral surface of the housing (100). In the illustrated example, the tail piece 621 is extended from one side of the second cover 620, and the tail piece 621 is fixed to be rotatable on the outer circumferential surface of the housing 100. . In addition, the integral first and second covers 610 and 620 and the tail piece 621 may be easily separated and coupled at the first and second guide holes 101 and 102, and the first and second covers 610 and 620 may be separated from each other. The material may be made of silicone or rubber in order to further improve the barrier property of foreign material inflow through the second guide holes 101 and 102.

In FIG. 4A, a state in which the first and second covers 610 and 620 are separated from the first and second guide holes 101 and 102 forming portions and is suspended from the housing 100 by the tail piece 621 is illustrated. In FIG. 4B, the first and second cover holes 610 and 620 are coupled to the first and second guide holes 101 and 102 forming portions to close the first and second guide holes 101 and 102. The state is shown.

On the other hand, 11 to 17 of the signs shown in the drawings are not included in the technical scope of the present invention, the detailed description is omitted, 11 is a front cover coupled to the open front of the housing 100, 12 is the front The transparent window is formed on the inner front of the cover, 13 is an LED disposed on the rear side of the transparent window so as to surround the lens 210, 14 is an LED substrate on which the LED is mounted, 15 is the lens unit 200 and The printed circuit board to be connected, 16 is a support frame for supporting the configuration such as the LED substrate, the printed circuit board to be fixed in the housing 100, 17 is a rear cover coupled to the open rear of the housing 100 To indicate.

1 is a perspective view of a surveillance camera according to an embodiment of the present invention,

2 is an exploded perspective view of main parts of the surveillance camera of FIG. 1;

3 is a cross-sectional view of the surveillance camera shown in FIG.

4 is a bottom view of the surveillance camera shown in FIG. 1.

Explanation of symbols on main parts of the drawings

One; Surveillance camera 11; Front cover

12; Transparent window 13; LED

14; LED substrate 15; Printed circuit board

16; Support frame 17; Rear cover

100; A housing 101; 1st Information Hall

102; Second guide hole 200; Lens part

210; Lens 220; Lens mount

310; A focus controller 320; First rod fixing part

321; First extension piece 350; Focus adjustment rod

351; Guide member 410; Zoom control

420; A second rod fixing part 421; Second Extension

450; Zoom adjustment rod 451; Guide member

510; First closed plate 511; Through hole

520; Second closing plate 521; Through hole

610; First cover 620; 2nd cover

621; Tail

Claims (6)

In the surveillance camera including a housing formed with a first guide hole and a second guide hole on the outer peripheral surface and the lens unit embedded in the housing, the focus and zoom adjustment, A focus controller and a zoom controller configured to rotate in the lens unit to adjust focus and zoom according to rotation; A first rod fixing part coupled with a position selected from an outer circumferential surface of the focus adjusting part and having a first extension piece formed at one side thereof; A focus adjusting rod coupled to the first extension piece and positioned at an end of the first guide hole extending along the circumferential direction of the housing; A second rod fixing part coupled to a position selected from an outer circumferential surface of the zoom adjusting part and having a second extension piece formed at one side thereof; And And a zoom adjustment rod coupled to the second extension piece, the zoom adjustment rod being positioned at the end of the second guide hole extending along the circumferential direction of the housing. The method according to claim 1, First and second closure plates provided in close contact with respective portions of the inner circumferential surface of the housing in which the first and second guide holes are formed to cover the first and second guide holes in an inward direction, and through holes formed in one side thereof; Include more, Each end of the focus adjusting rod and the zoom adjusting rod protrudes to the outside of the first and second guide holes while passing through the through hole. The method according to claim 1, First and second closure plates provided in close contact with respective portions of the inner circumferential surface of the housing in which the first and second guide holes are formed to cover the first and second guide holes in an inward direction, and through holes formed in one side thereof; And A guide member coupled to the ends of the focus adjusting rod and the zoom adjusting rod through the through hole so as to protrude outward from the first and second guide holes and be guided along the first and second guide holes; Surveillance cameras that can be adjusted focus and zoom further comprising. The method according to any one of claims 1 to 3, And a first cover and a second cover, which are detachably coupled to the housing such that the first and second guide holes are covered and closed in an outer direction. The method according to claim 4, The first and second cover is integrally formed while being connected to each other, characterized in that the end of the tail piece is formed integrally extending from one side of the first cover or one side of the second cover is fixed to the outer peripheral surface of the housing Surveillance camera with adjustable focus and zoom. The method according to claim 5, The first and second cover and the tail piece integrally made of a rubber or silicon material, the focus and zoom control surveillance camera, characterized in that.

Images