CN108718382B - Light blocking ring lifting mechanism and camera - Google Patents
Light blocking ring lifting mechanism and camera Download PDFInfo
- Publication number
- CN108718382B CN108718382B CN201810889473.XA CN201810889473A CN108718382B CN 108718382 B CN108718382 B CN 108718382B CN 201810889473 A CN201810889473 A CN 201810889473A CN 108718382 B CN108718382 B CN 108718382B
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- Prior art keywords
- ring
- light
- blocking ring
- light blocking
- lifting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a light blocking ring lifting mechanism and a camera, which are used for reducing damage to a light blocking ring, improving the structural stability and prolonging the service life of the camera. Light blocking ring elevating system includes: camera casing, set gradually in solid fixed ring, the lifting ring of camera casing, be in the light ring mount and keep off the light ring, drive arrangement, wherein: the fixed ring is fixed on the camera shell, and the lifting ring is rotatably connected with the fixed ring; the light blocking ring is fixed on the light blocking ring fixing frame, the light blocking ring fixing frame is clamped with the lifting ring, and a rotation limiting structure is arranged between the light blocking ring fixing frame and the fixing ring; the driving device is used for driving the lifting ring to move.
Description
Technical Field
The invention relates to the technical field of monitoring equipment, in particular to a light blocking ring lifting mechanism and a camera.
Background
As shown in fig. 1, in the existing infrared camera, an infrared hemisphere is used to block infrared light of an infrared lamp from entering a lens 01, so as to affect imaging of the lens 01, and a light blocking ring 03 is installed between the lens 01 and a transparent cover 02.
When the light blocking ring 03 is installed on the front hemisphere 04, the lens 01 is installed at a corresponding position, and finally the transparent cover 02 is fixed on the camera shell through screws, so that the light blocking ring 03 is attached to the inner surface of the transparent cover 02, and infrared light is prevented from entering the lens.
The problems existing in the prior art are that: if increase the light-blocking circle 03 in taking the automatic movement infrared camera of translucent cover 02, easily with light-blocking circle 03 extrusion deformation in the motion process, and the light-blocking circle 03 is laminated very firmly with translucent cover 02, and the consumption of motor will promote.
Disclosure of Invention
The embodiment of the invention aims to provide a light blocking ring lifting mechanism and a camera, so that the damage to the light blocking ring is reduced, the structural stability is improved, and the service life of the camera is prolonged.
The embodiment of the invention provides a light blocking ring lifting mechanism, which comprises: camera casing, set gradually in the solid fixed ring, the lifting ring of camera casing, the circle mount and the light ring that keeps off in the light, drive arrangement, wherein:
the fixed ring is fixed on the camera shell, and the lifting ring is rotatably connected with the fixed ring;
the light blocking ring is fixed on the light blocking ring fixing frame, the light blocking ring fixing frame is clamped with the lifting ring, and a rotation limiting structure is arranged between the light blocking ring fixing frame and the fixing ring;
the driving device is used for driving the lifting ring to move.
In each embodiment of the present invention, optionally, the light blocking ring is bonded to the light blocking ring fixing frame, or the light blocking ring and the light blocking ring fixing frame are formed by two-time injection molding.
In any embodiment of the present invention, optionally, the fixing ring is coupled with the lifting ring through a screw thread, or the fixing ring is coupled with the lifting ring through a spiral groove.
In each embodiment of the present invention, optionally, the fixing ring has a plurality of fixing holes, and the camera housing has mounting holes corresponding to the fixing holes one to one.
In each embodiment of the present invention, optionally, the rotation limiting structure includes: the limiting grooves are arranged on the inner side wall of the fixing ring, and the limiting ribs are arranged on the light blocking ring fixing frame; the limiting groove is arranged along the direction parallel to the axial direction of the fixing ring, and the limiting ribs are arranged in one-to-one correspondence with the limiting grooves.
In any embodiment of the present invention, optionally, the lifting ring has a sliding groove arranged along a first circumferential direction, and the stop ring holder has a protrusion arranged along a second circumferential direction, and the protrusion is slidably connected with the sliding groove.
In each embodiment of the present invention, optionally, the light-blocking ring lifting mechanism further includes a controller and a displacement sensor in signal connection with the light-blocking ring fixing frame;
the controller is used for receiving a displacement signal sent by the displacement sensor and judging the position of the light blocking ring fixing frame according to the displacement signal; or, the light blocking ring fixing frame is controlled to move to a corresponding position according to the displacement signal.
In embodiments of the present invention, optionally, the displacement sensor includes: the optical coupler is fixed on the inner side wall of the fixing ring, and the optical coupler blocking piece is fixed on the light blocking ring fixing frame.
In each embodiment of the present invention, optionally, the optical coupler blocking piece is sequentially provided with a first optical coupler blocking piece notch and a second optical coupler blocking piece notch along a descending movement direction of the lifting ring; the controller is further used for determining a first position where the light blocking ring reaches according to the first optical coupler separation blade gap, and determining a second position where the light blocking ring reaches according to the second optical coupler separation blade gap.
When the light blocking ring lifting mechanism is used, firstly, the lifting ring and the fixing ring can be screwed, and then the fixing ring is fixed on the camera shell; then, the light blocking ring and the light blocking ring fixing frame are firmly fixed; and finally, clamping the light blocking ring fixing frame with the lifting ring.
By adopting the light blocking ring lifting mechanism provided by the embodiment of the invention, when the driving device drives the lifting ring to move, the lifting ring rotates in the direction close to or far from the fixed ring. Because the fixed ring is fixed on the camera shell, when the lifting ring moves, the light blocking ring can be driven to move by the light blocking ring fixed frame; and because the rotary limiting structure is arranged between the light blocking ring fixing frame and the fixing ring, the light blocking ring only moves in the direction close to or far away from the fixing ring, so that the situation that the light blocking ring is distorted and deformed when the lifting ring rotates is effectively avoided, the damage to the light blocking ring is reduced, the structural stability of the light blocking ring lifting mechanism is improved, and the service life of the camera is prolonged.
Based on the same inventive concept, an embodiment of the present invention further provides a camera, including a transparent cover fixed to the camera housing, a lens, and the light blocking ring lifting mechanism, wherein: the transparent cover is covered on the light blocking ring; the lens is arranged on one side, far away from the transparent cover, of the light blocking ring.
According to the camera in the technical scheme, when the lifting ring in the light blocking ring lifting mechanism rotates and moves in the direction close to or far from the fixing ring, the fixing ring is fixed on the camera shell, so that the light blocking ring can be driven to move by the light blocking ring fixing frame when the lifting ring moves; and because the rotary limiting structure is arranged between the light blocking ring fixing frame and the fixing ring, the light blocking ring only moves in the direction close to or far away from the fixing ring, so that the situation that the light blocking ring is distorted and deformed when the lifting ring rotates is effectively avoided, the damage to the light blocking ring is reduced, the structural stability of the light blocking ring lifting mechanism is improved, and the service life of the camera is prolonged.
Drawings
FIG. 1 is a schematic diagram of a prior art camera configuration;
FIG. 2 is a schematic diagram of a camera according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a camera in accordance with an embodiment of the present invention;
fig. 4 is a partial structural schematic view of a camera according to an embodiment of the present invention;
fig. 5 is a schematic partial structure diagram of a light-blocking ring lifting mechanism according to an embodiment of the present invention.
Reference numerals:
the prior art comprises the following steps:
01-lens; 02-a transparent cover; 03-a light-blocking ring; 04-anterior hemisphere.
The embodiment part of the invention is as follows:
1-light blocking ring lifting mechanism; 2-a camera housing; 3-fixing the ring; 4-lifting ring;
5-light blocking ring fixing frame; 6-a light-blocking ring; 7-a drive device; 8-a rotation limiting structure;
9-a motor; 10-a fixation hole; 11-mounting holes; 12-a limiting groove; 13-limiting ribs;
14-a chute; 15-bulge; 16-a displacement sensor; 17-an optical coupler;
18-optical coupling stop sheet; 19-optical coupling plate; 20-screws; 21-a first optocoupler catch notch;
22-a second optocoupler catch notch; 23-a camera; 24-a transparent cover; 25-lens.
Detailed Description
In order to reduce damage to the light blocking ring, improve structural stability and prolong the service life of the camera, the embodiment of the invention provides a light blocking ring lifting mechanism and a camera. In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.
When the present application refers to the ordinal numbers "first", "second", "third" or "fourth", etc., it should be understood that this is done for differentiation only, unless it is clear from the context that the order is actually expressed.
As shown in fig. 1 to 5, an embodiment of the present invention provides a light-blocking ring lifting mechanism 1, including: camera casing 2, set gradually in fixed ring 3, the lifting ring 4 of camera casing 2, be in the light circle mount 5 and keep off light circle 6, drive arrangement 7, wherein:
the fixed ring 3 is fixed on the camera shell 2, and the lifting ring 4 is rotatably connected with the fixed ring 3;
the light blocking ring 6 is fixed on the light blocking ring fixing frame 5, the light blocking ring fixing frame 5 is clamped with the lifting ring 4, and a rotation limiting structure 8 is arranged between the light blocking ring fixing frame 5 and the fixing ring 3;
the driving device 7 is used for driving the lifting ring 4 to move.
The driving device 7 may comprise a motor 9 fixed to the camera housing 2, and the motor 9 is connected to the lifting ring 4 in a gear transmission manner.
When the light blocking ring lifting mechanism 1 is used, firstly, the lifting ring 4 and the fixing ring 3 can be screwed, and then the fixing ring 3 is fixed on the camera shell 2; then, the light blocking ring 6 is firmly fixed with the light blocking ring fixing frame 5; and finally, clamping the light blocking ring fixing frame 5 with the lifting ring 4. It should be noted that the above steps do not represent the only installation sequence of the diaphragm lifting mechanism 1 during installation.
With the light blocking ring lifting mechanism 1 of the embodiment of the invention, when the driving device 7 drives the lifting ring 4 to move, the lifting ring 4 rotates in a direction close to or far away from the fixed ring 3. Because the fixed ring 3 is fixed on the camera shell 2, when the lifting ring 4 moves, the light blocking ring 6 is driven to move by the light blocking ring fixing frame 5; and because the rotary limiting structure 8 is arranged between the light blocking ring fixing frame 5 and the fixing ring 3, the light blocking ring 6 only moves in the direction close to or far away from the fixing ring 3, so that the situation that the light blocking ring 6 is distorted and deformed when the lifting ring 4 rotates is effectively avoided, the damage to the light blocking ring 6 is reduced, the structural stability of the light blocking ring lifting mechanism 1 is improved, and the service life of the camera 23 is prolonged.
In each embodiment of the present invention, the fixing manner of the light blocking ring and the light blocking ring fixing frame is not limited, and optionally, the light blocking ring and the light blocking ring fixing frame are bonded, or the light blocking ring and the light blocking ring fixing frame are formed by secondary injection molding.
In any embodiment of the present invention, the connection manner of the fixing ring 3 and the lifting ring 4 is not limited, and optionally, as shown in fig. 2, the fixing ring 3 is in threaded connection with the lifting ring 4; in other alternative embodiments of the present invention, the fixed ring 3 and the lifting ring 4 may also be coupled by a spiral groove.
As shown in fig. 2, in the embodiments of the present invention, optionally, the fixing ring 3 has a plurality of fixing holes 10, and the camera housing 2 has mounting holes 11 disposed in one-to-one correspondence with the fixing holes 10. Through set up fixed orifices 10 on solid fixed ring 3 to and set up mounting hole 11 on camera casing 2, can be fixed in solid fixed ring 3 on camera casing 2 through the fastener like this, it is fixed comparatively reliably, and the dismouting maintenance of being convenient for.
As shown in fig. 4, in the embodiments of the present invention, optionally, the rotation limiting structure 8 includes: a plurality of limiting grooves 12 arranged on the inner side wall of the fixing ring 3, and limiting ribs 13 arranged on the light blocking ring fixing frame 5; the limiting ribs 13 are arranged in one-to-one correspondence with the limiting grooves 12.
Through setting up rotatory limit structure 8 to the form of spacing groove 12 and spacing muscle 13, not only can make solid fixed ring 3 play rotatory limiting displacement to the circle mount 5 that is in the light, can also make the structure of circle elevating system 1 that is in the light comparatively simple, structural stability is stronger.
Of course, in other alternative embodiments of the present invention, the limiting groove 12 may be disposed on the light-blocking ring fixing frame 5, and the limiting rib 13 may be disposed on the inner side wall of the fixing ring 3.
As shown in fig. 4, in the embodiment of the present invention, it is preferable that the stopper groove 12 is provided in a direction parallel to the axial direction of the fixing ring 3. The arrangement can effectively simplify the processing technology of the limiting groove 12.
As shown in fig. 2 and 4, in any embodiment of the present invention, optionally, the lifting ring 4 has a sliding slot 14 disposed along a first circumferential direction, and the light-blocking ring fixing frame 5 has a protrusion 15 disposed along a second circumferential direction, wherein the first circumferential direction is opposite to the second circumferential direction, and the protrusion 15 is slidably connected with the sliding slot 14.
In each embodiment of the technical scheme, the first circumferential direction refers to the circumferential direction of the lifting ring, and the second circumferential direction refers to the circumferential direction of the light blocking ring fixing frame.
The specific form of the protrusion 15 is not limited, and may be a circle arranged along the second circumferential direction, or may include a plurality of small protrusions.
In the technical scheme, when the light blocking ring fixing frame 5 is fixed on the lifting ring 4, the bulge 15 of the light blocking ring fixing frame 5 can be directly clamped with the chute 14 of the lifting ring 4, so that the light blocking ring fixing frame 5 is in sliding connection with the lifting ring 4 when the lifting ring 4 rotates, and the light blocking ring fixing frame 5 only moves up and down along with the lifting ring 4 and does not rotate.
As shown in fig. 1 and 5, in each embodiment of the present invention, optionally, the light barrier ring lifting mechanism 1 further includes a controller (not shown in the figure), and a displacement sensor 16 in signal connection with the light barrier ring fixing frame 5;
the controller is used for receiving the displacement signal sent by the displacement sensor 16 and judging the position of the light-blocking ring fixing frame 5 according to the displacement signal; or, the stop diaphragm fixing frame 5 is controlled to move to a corresponding position according to the displacement signal.
Thus, the controller can determine the position to which the light blocking ring fixing frame 5 moves according to the displacement signal sent by the displacement sensor 16, and can control the light blocking ring fixing frame 5 to move to the corresponding position according to requirements, so as to control the position of the light blocking ring 6.
As shown in fig. 5, in various embodiments of the present invention, the displacement sensor 16 optionally includes: the optical coupler 17 is fixed on the inner side wall of the fixing ring 3, and the optical coupler blocking piece 18 is fixed on the light blocking ring fixing frame 5.
In the embodiment of the present invention, the optical coupler plate 19 to which the optical coupler 17 is fixed may be fixed to the fixed ring 3 by screws 20. With continued reference to fig. 5, further, in various alternative embodiments of the present invention, the optical coupler stop 18 is sequentially provided with a first optical coupler stop notch 21 and a second optical coupler stop notch 22 along the descending movement direction of the lifting ring; the controller is further used for determining a first position where the light blocking ring fixing frame 5 reaches according to the first light coupling baffle gap 21, and determining a second position where the light blocking ring fixing frame 5 reaches according to the second light coupling baffle gap 22.
Specifically, under the condition of meeting the actual requirements, the controller can determine that the light blocking ring fixing frame 5 reaches the position closest to the fixing ring 3 according to the condition that the first optical coupler baffle notch 21 is in the light transmission state; and determining that the light blocking ring fixing frame 5 reaches the position farthest from the fixing ring 3 according to the condition that the second light coupling baffle notch 22 is in the light transmission state. In this way, the movement position of the light blocking ring holder 5 can be controlled to avoid the extrusion deformation of the light blocking ring 6, and the requirements on the rotation precision of the lifting ring 4 and the driving precision of the driving device 7 can be reduced.
As shown in fig. 2, based on the same inventive concept, the embodiment of the present invention further provides a camera 23, which includes a transparent cover 24 fixed to the camera housing 2, a lens 25, and the stop diaphragm elevating mechanism 1 as before, wherein: the transparent cover 24 covers the light blocking ring 6; the lens 25 is disposed on the side of the stop 6 remote from the transparent cover 24.
In the camera 23 of the present technical solution, when the lifting ring 4 in the light-blocking ring lifting mechanism 1 rotates and moves in a direction close to or away from the fixing ring 3, because the fixing ring 3 is fixed to the camera housing 2, when the lifting ring 4 moves, the light-blocking ring 6 is driven to move by the light-blocking ring fixing frame 5; and because the rotary limiting structure 8 is arranged between the light blocking ring fixing frame 5 and the fixing ring 3, the light blocking ring 6 only moves in the direction close to or far away from the fixing ring 3, so that the situation that the light blocking ring 6 is distorted and deformed when the lifting ring 4 rotates is effectively avoided, the damage to the light blocking ring 6 is reduced, the structural stability of the light blocking ring lifting mechanism 1 is improved, and the service life of the camera 23 is prolonged.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A light blocking ring lifting mechanism is characterized by comprising: camera casing, set gradually in the solid fixed ring, the lifting ring of camera casing, the circle mount and the light ring that keeps off in the light, drive arrangement, wherein:
the fixed ring is fixed on the camera shell, and the lifting ring is rotatably connected with the fixed ring;
the light blocking ring is fixed on the light blocking ring fixing frame, the light blocking ring fixing frame is clamped with the lifting ring, and a rotation limiting structure is arranged between the light blocking ring fixing frame and the fixing ring;
the driving device is used for driving the lifting ring to move.
2. The light-blocking ring lifting mechanism of claim 1, wherein the light-blocking ring is bonded to the light-blocking ring holder, or the light-blocking ring and the light-blocking ring holder are formed by two-shot injection molding.
3. The light barrier ring lifting mechanism of claim 1, wherein the fixing ring is screw-coupled to the lifting ring, or the fixing ring is screw-coupled to the lifting ring.
4. The light-blocking ring lifting mechanism according to claim 1, wherein the fixing ring has a plurality of fixing holes, and the camera housing has mounting holes corresponding to the fixing holes.
5. The light-barrier ring lifting mechanism of claim 1, wherein the rotation limiting structure comprises: the limiting grooves are arranged on the inner side wall of the fixing ring, and the limiting ribs are arranged on the light blocking ring fixing frame; the limiting ribs and the limiting grooves are arranged in a one-to-one correspondence mode.
6. The light-blocking ring lifting mechanism according to claim 5, wherein the stopper groove is provided in a direction parallel to the axial direction of the fixing ring.
7. The light-blocking ring lifting mechanism according to claim 1, wherein the lifting ring has a sliding groove formed along a first circumferential direction, and the light-blocking ring holder has a protrusion formed along a second circumferential direction, wherein the first circumferential direction is opposite to the second circumferential direction, and the protrusion is slidably coupled to the sliding groove.
8. The light-blocking ring lifting mechanism according to any one of claims 1 to 7, further comprising a controller and a displacement sensor in signal connection with the light-blocking ring fixing frame;
the controller is used for receiving a displacement signal sent by the displacement sensor and judging the position of the light blocking ring fixing frame according to the displacement signal; or, the light blocking ring fixing frame is controlled to move to a corresponding position according to the displacement signal.
9. The light barrier ring riser mechanism of claim 8, wherein the displacement sensor comprises: the optical coupler is fixed on the inner side wall of the fixing ring, and the optical coupler blocking piece is fixed on the light blocking ring fixing frame.
10. The light barrier ring lifting mechanism of claim 9, wherein the light coupling barrier is provided with a first light coupling barrier gap and a second light coupling barrier gap in sequence along the descending movement direction of the lifting ring;
the controller is further used for determining a first position where the light blocking ring reaches according to the first optical coupler separation blade gap, and determining a second position where the light blocking ring reaches according to the second optical coupler separation blade gap.
11. A camera comprising a transparent cover fixed to a camera housing, a lens, and a light-blocking ring lifting mechanism according to any one of claims 1 to 10, wherein: the transparent cover is covered on the light blocking ring; the lens is arranged on one side, far away from the transparent cover, of the light blocking ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889473.XA CN108718382B (en) | 2018-08-07 | 2018-08-07 | Light blocking ring lifting mechanism and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889473.XA CN108718382B (en) | 2018-08-07 | 2018-08-07 | Light blocking ring lifting mechanism and camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108718382A CN108718382A (en) | 2018-10-30 |
| CN108718382B true CN108718382B (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810889473.XA Active CN108718382B (en) | 2018-08-07 | 2018-08-07 | Light blocking ring lifting mechanism and camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108718382B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005156896A (en) * | 2003-11-26 | 2005-06-16 | Alps Electric Co Ltd | Camera diaphragm apparatus |
| CN202956578U (en) * | 2012-11-26 | 2013-05-29 | 单健文 | Rotating bracket of dome camera |
| CN203181071U (en) * | 2013-03-15 | 2013-09-04 | 浙江大华技术股份有限公司 | Infrared camera |
| CN204031296U (en) * | 2014-08-07 | 2014-12-17 | 深圳市华安泰智能科技有限公司 | A kind of semi-spherical camera automatic shading mechanism |
| CN106851061A (en) * | 2017-01-23 | 2017-06-13 | 浙江大华技术股份有限公司 | Image capture device |
-
2018
- 2018-08-07 CN CN201810889473.XA patent/CN108718382B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005156896A (en) * | 2003-11-26 | 2005-06-16 | Alps Electric Co Ltd | Camera diaphragm apparatus |
| CN202956578U (en) * | 2012-11-26 | 2013-05-29 | 单健文 | Rotating bracket of dome camera |
| CN203181071U (en) * | 2013-03-15 | 2013-09-04 | 浙江大华技术股份有限公司 | Infrared camera |
| CN204031296U (en) * | 2014-08-07 | 2014-12-17 | 深圳市华安泰智能科技有限公司 | A kind of semi-spherical camera automatic shading mechanism |
| CN106851061A (en) * | 2017-01-23 | 2017-06-13 | 浙江大华技术股份有限公司 | Image capture device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108718382A (en) | 2018-10-30 |
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