CN203350578U - Zooming infrared fill light and camera - Google Patents
Zooming infrared fill light and camera Download PDFInfo
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- CN203350578U CN203350578U CN201320415981.7U CN201320415981U CN203350578U CN 203350578 U CN203350578 U CN 203350578U CN 201320415981 U CN201320415981 U CN 201320415981U CN 203350578 U CN203350578 U CN 203350578U
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- infrared
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- infrared light
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- lens assembly
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Abstract
The utility model discloses a zooming infrared fill light and a camera. The zooming infrared fill light comprises an infrared light source, which can be used to emit the infrared light beam; an infrared zooming lens assembly, which is disposed on an emission path of the infrared light beam, and can move with respect to the infrared light source to change an illumination area of the infrared light source, and comprises at least one infrared zooming lens; and a transmission device, which can be used for the transmission connection between the infrared zooming lens assembly and the zooming camera assembly in order to realize the synchronous zooming movement of infrared zooming lens assembly and the zooming camera assembly. The zooming infrared fill light is advantageous in that the zooming infrared fill light can be realized; the utilization efficiency of the infrared light can be improved, and the waste of the infrared light can be reduced; the costs can be reduced, and the structure and the control way of the infrared zooming can be simplified.
Description
Technical field
The utility model relates to protection and monitor field, particularly relates to the infrared light compensating lamp of a kind of zoom and video camera.
Background technology
Safety monitoring equipment is more and more paid attention to by people for the effect that protection personnel and property safety play under night or dim environment.Due to complex environment and actual demand, for the demand of zoom safety monitoring equipment flexibly, day by day promote.For example, in order to obtain image clearly under dark surrounds, require zoom safety monitoring equipment to carry out infrared illumination or infrared light filling to guarded region.
The infrared light filling technical scheme of the zoom safety monitoring equipment of prior art mainly comprises following two kinds of modes.
The infrared light filling technical scheme of the first is used the infrared light of fixed beam angle.Referring to Fig. 1, in this kind of light filling mode, the infrared beam 3 that infrared light supply 1 sends illuminates and needs the light filling zone after reflector 2 reflections, and it is fixing that angle remains.When watch-dog (video camera) zoom, the angle of infrared light or the size of illuminated area remain constant.Like this, there will be the bright dark inequality of the whole picture of wide-angle side: have subregion to be illuminated by infrared beam, and another part zone is not irradiated by infrared beam; Perhaps whole picture brightness is inadequate: some shines infrared light outside the guarded region after the video camera zoom.Thereby the light filling angle can not well be mated with video camera.
The infrared light filling technical scheme of the second is used the infrared light of adjustable light beam angle.Referring to Fig. 2, in this infrared light filling mode, the infrared beam 3 that infrared light supply 1 sends illuminates and needs the light filling zone after the first infrared zoom lens 4 and the second infrared zoom lens 5.In addition, drive infrared zoom lens motion by motor, thereby change the angle of infrared light or the size of illuminated area along with the pick-up lens zoom.This scheme can realize that the infrared light angle changes along with the video camera zoom, but this kind of mode controlled comparatively complicated, cost is higher: lens zoom and infrared zoom are driven respectively by two motors, and need to have a controller to control the motion of infrared zoom motor according to the lens zoom situation, to realize synchronously carrying out of infrared zoom and lens zoom.In addition, due to the restriction on this kind of watch-dog structure and lens sizes, the infrared light that has part can not be utilized (in Fig. 2 the light beam of upper left quarter be not incident to the first infrared zoom lens 4 and waste), thereby causes the infrared light waste, and wastage surpasses 20% usually.
Wish thus a kind of better infrared light filling mode.
The utility model content
Term in this patent " light filling " refers to that for example, watch-dog adopts the light of special-purpose infrared band to be thrown light on, so that watch-dog can clearly be monitored the zone that will monitor under dark surrounds (night environment).
The purpose of this utility model is to provide the infrared light compensating lamp of a kind of zoom to realize better infrared light filling.
For achieving the above object, the utility model provides a kind of zoom infrared light compensating lamp, and the infrared light compensating lamp of described zoom comprises: infrared light supply, for sending infrared beam; Infrared focus-variable lens assembly, it is arranged on the transmission path of described infrared beam, can move with respect to described infrared light supply, and the illuminated area size of change infrared light supply, wherein, described infrared focus-variable lens assembly comprises at least one infrared focus-variable lens; And gearing, it is in transmission connection described infrared focus-variable lens assembly and zoom lens assembly, for realizing the synchronous zoom motion of described infrared focus-variable lens assembly and described zoom lens assembly.
Thereby the infrared light compensating lamp of zoom of the present utility model can be realized the infrared light filling of zoom; Can improve the utilization ratio of infrared light, reduce the waste of infrared light; Can also reduce costs, simplify structure and the control mode of infrared zoom.
Preferably, described gearing comprises transmission shaft and is fixedly mounted on the first gear and the second gear on described transmission shaft, wherein, lens zoom gear engagement on described the first gear and described zoom lens assembly, the infrared zoom gear engagement on described the second gear and described infrared focus-variable lens assembly.
Preferably, the ratio of gear of the turning axle of the turning axle of described lens zoom gear and described infrared zoom gear is in the scope of 1:2 to 2:1.
Preferably, the infrared light compensating lamp of described zoom further comprises control light parts, described control light parts are arranged on the transmission path of described infrared beam and fix with respect to described infrared light supply, for described infrared beam part is not collected directly into the infrared light that is incident upon described infrared focus-variable lens assembly, make it to be projected to described infrared focus-variable lens assembly
Preferably, described control light parts are reflectors.
Preferably, described control light parts are lens.
Preferably, described control light parts are fixed to the aluminium base of described infrared light supply by mode bonding or that be threaded.
Preferably, the quantity of described infrared focus-variable lens is a slice or two.
Preferably, described infrared focus-variable lens is concave-convex lens, plano-convex lens or biconvex lens.
Preferably, described infrared focus-variable lens is plano-convex lens, and the planar side of described plano-convex lens is facing to described infrared light supply.
Preferably, the material of described infrared focus-variable lens is PMMA or PC.
The utility model also provides a kind of video camera, and wherein, described video camera comprises the infrared light compensating lamp of zoom as above.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the infrared light compensating lamp that in prior art, rising angle is fixed
Fig. 2 is the schematic diagram of varifocal infrared light filling of the prior art etc.
Fig. 3 is the schematic diagram according to the video camera of the utility model one embodiment.
Fig. 4 is the lens zoom curve of video camera shown in Fig. 3, and what wherein horizontal ordinate meaned is the gear anglec of rotation, and what ordinate meaned is to rotate the variation of watch-dog monitoring range (field angle) along with gear
Fig. 5 is the zoom curve of zoom infrared lamp in video camera shown in Fig. 3, and wherein, what horizontal ordinate meaned is the gear anglec of rotation, and what ordinate meaned is the variation of the distance of infrared Zoom lamp assembly center and LED bottom along with the gear anglec of rotation.Along with the variation of infrared Zoom lamp assembly center and LED distance from bottom, the scope that infrared lamp illuminates can change, thereby consistent with the monitoring range (field angle) of video camera.
Fig. 6 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the first of video camera shown in Fig. 3 when the infrared lamp wide-angle.
Fig. 7 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the first of video camera shown in Fig. 3 when the infrared lamp low-angle.
Fig. 8 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the second of video camera shown in Fig. 3 when the infrared lamp wide-angle.
Fig. 9 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the second of video camera shown in Fig. 3 when the infrared lamp low-angle.
Figure 10 is the structural representation of the third infrared Zoom lamp concrete structure of video camera shown in Fig. 3.
Figure 11 is the structural representation of video camera shown in Fig. 3, shows transmission shaft.
Reference numeral:
| 1 | |
2a | The control |
| 2 | |
8 | |
| 3 | Infrared beam | 9 | The |
| 4 | The first |
10 | |
| 5 | The second infrared zoom lens | 11 | Transmission shaft |
| 6 | The lens zoom assembly | ? | ? |
| 7 | Infrared zoom assembly | ? | ? |
Embodiment
For purpose, technical scheme and advantage that the utility model is implemented is clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label means same or similar element or the element with identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiment.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model; those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and the scope that all belongs to the utility model protection is elaborated to embodiment of the present utility model below in conjunction with accompanying drawing.
According to the infrared light compensating lamp of zoom of the present utility model, comprise: infrared light supply, for sending infrared beam; Infrared focus-variable lens assembly, it is arranged on the transmission path of described infrared beam, can move with respect to described infrared light supply, and the illuminated area size of change infrared light supply, wherein, described infrared focus-variable lens assembly comprises at least one infrared focus-variable lens; And control light parts, it is arranged on the transmission path of described infrared beam and fixes with respect to described infrared light supply, for described infrared beam part is not collected directly into the infrared light that is incident upon described infrared focus-variable lens assembly, make it to be projected to described infrared focus-variable lens assembly; And gearing, it is in transmission connection described infrared focus-variable lens assembly and zoom lens assembly, for realizing being synchronized with the movement of described infrared focus-variable lens assembly and described zoom lens assembly.
Thereby the infrared light compensating lamp of zoom of the present utility model can be realized the infrared light filling of zoom; Can improve the utilization ratio of infrared light, reduce the waste of infrared light; Can also reduce costs, simplify structure and the control mode of infrared zoom.
Fig. 3 is the schematic diagram according to the video camera of the utility model one embodiment.As shown in Figure 3, described video camera comprises lens zoom assembly 6 and infrared zoom assembly 7.Infrared zoom assembly 7 and lens zoom assembly 6 by transmission shaft 11(referring to Figure 11) be in transmission connection, thereby realize the synchronous zoom of camera lens and infrared light compensating lamp.For example, the lens zoom curve of video camera is referring to Fig. 4, and what wherein horizontal ordinate meaned is the gear anglec of rotation, and what ordinate meaned is to rotate the variation of watch-dog monitoring range (field angle) along with gear.The zoom curve of zoom infrared lamp is for example referring to Fig. 5, and wherein, what horizontal ordinate meaned is the gear anglec of rotation, and what ordinate meaned is the variation of the distance of infrared Zoom lamp assembly center and LED bottom along with the gear anglec of rotation.
Fig. 6 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the first of video camera shown in Fig. 3 when the infrared lamp wide-angle.Fig. 7 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the first of video camera shown in Fig. 3 when the infrared lamp low-angle.In the embodiment shown in Fig. 6 and Fig. 7, adopt reflector 2 as control light parts.Reflector 2 is arranged on the transmission path of infrared beam 3 of infrared light supply 1 emission, and fix with respect to described infrared light supply, for described infrared beam part is not collected directly into the infrared light that is incident upon described infrared focus-variable lens assembly, make it to be projected to described infrared focus-variable lens assembly.When infrared zoom, the first infrared zoom lens 4 and the second infrared zoom lens 5 move simultaneously, and keep distance each other constant.But, also can keep motionless by the first infrared zoom lens 4, and only the second infrared zoom lens 5 motions change the distance between the first infrared zoom lens 4 and the second infrared zoom lens 5.Realize thus zoom.More specifically, during initial position, infrared light is maximum angle, and when the watch-dog zoom, variable focus lens package moves to the direction away from light source, realizes the change of infrared light angle, thereby makes the range of exposures of infrared light consistent with the monitoring range of watch-dog.
Described infrared focus- variable lens 4 and 5 can adopt the aspheric surface design, is for example concave-convex lens, plano-convex lens or biconvex lens.Preferably, described infrared focus-variable lens is plano-convex lens, and the planar side of described plano-convex lens is facing to described infrared light supply.The material of described infrared focus-variable lens can be PMMA or PC.
Fig. 8 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the second of video camera shown in Fig. 3 when the infrared lamp wide-angle.Fig. 9 is the light path schematic diagram of the infrared Zoom lamp concrete structure of the second of video camera shown in Fig. 3 when the infrared lamp low-angle.In the embodiment shown in Fig. 8 and Fig. 9, adopt control optical lens 2a as control light parts.Control optical lens 2a is arranged on the transmission path of infrared beam 3 of infrared light supply 1 emission, and fix with respect to described infrared light supply, for described infrared beam part is not collected directly into the infrared light that is incident upon described infrared focus-variable lens assembly, make it to be projected to described infrared focus-variable lens assembly.When infrared zoom, the first infrared zoom lens 4 and the second infrared zoom lens 5 move simultaneously, and keep distance each other constant.But, also can keep motionless by the first infrared zoom lens 4, and only the second infrared zoom lens 5 motions change the distance between the first infrared zoom lens 4 and the second infrared zoom lens 5.Realize thus zoom.
Figure 10 is the structural representation of the third infrared Zoom lamp concrete structure of video camera shown in Fig. 3.In the embodiment shown in fig. 10, only adopted first infrared zoom lens 4, and do not adopted the second infrared zoom lens 5.As shown in figure 10, the bonding or mode that be threaded of reflector 2 is fixed to the aluminium base 10 of described infrared light supply.
Figure 11 is the structural representation of video camera shown in Fig. 3, clearly show that transmission shaft 11.Be provided with the first gear and second gear of synchronous rotary with it on transmission shaft 11.Lens zoom gear 9 engagements on described the first gear and described zoom lens assembly, infrared zoom gear 8 engagements on described the second gear and described infrared focus-variable lens assembly.The ratio of gear of the turning axle of described lens zoom gear and the turning axle of described infrared zoom gear can arrange as required, for example, in the scope of 1:2 to 2:1, for example can be chosen as 1:1.Zoom lens is converted into straight-line zoom mode by rotatablely moving be known, and the utility model repeats no more.The zoom mode of zoom infrared lamp is also to be converted into rectilinear motion by rotatablely moving.In order to realize the good fit of zoom lens and zoom infrared lamp, can be so that zoom lens and zoom infrared lamp overlap with the illuminated area of zoom infrared lamp in the visual field of initial position (not zoom) zoom lens, and/or make in the visual field of maximum zoom position place zoom lens and overlap with the illuminated area of zoom infrared lamp.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. the infrared light compensating lamp of zoom, is characterized in that, comprising:
Infrared light supply, for sending infrared beam;
Infrared focus-variable lens assembly, it is arranged on the transmission path of described infrared beam, can move with respect to described infrared light supply, and the illuminated area size of change infrared light supply, wherein, described infrared focus-variable lens assembly comprises at least one infrared focus-variable lens; And
Gearing, it is in transmission connection described infrared focus-variable lens assembly and zoom lens assembly, for realizing the synchronous zoom motion of described infrared focus-variable lens assembly and described zoom lens assembly.
2. the infrared light compensating lamp of zoom as claimed in claim 1, it is characterized in that, described gearing comprises transmission shaft and is fixedly mounted on the first gear and the second gear on described transmission shaft, wherein, lens zoom gear engagement on described the first gear and described zoom lens assembly, the infrared zoom gear engagement on described the second gear and described infrared focus-variable lens assembly.
3. the infrared light compensating lamp of zoom as claimed in claim 2, is characterized in that, the ratio of gear of the turning axle of described lens zoom gear and the turning axle of described infrared zoom gear is in the scope of 1:2 to 2:1.
4. the infrared light compensating lamp of zoom as claimed in claim 1, it is characterized in that, further comprise control light parts, described control light parts are arranged on the transmission path of described infrared beam and fix with respect to described infrared light supply, for described infrared beam part is not collected directly into the infrared light that is incident upon described infrared focus-variable lens assembly, make it to be projected to described infrared focus-variable lens assembly.
5. the infrared light compensating lamp of zoom as claimed in claim 4, is characterized in that, described control light parts are reflectors.
6. the infrared light compensating lamp of zoom as claimed in claim 4, is characterized in that, described control light parts are lens.
7. the infrared light compensating lamp of zoom as claimed in claim 4, is characterized in that, described control light parts are fixed to the aluminium base of described infrared light supply by mode bonding or that be threaded.
8. the infrared light compensating lamp of zoom as claimed in claim 1, is characterized in that, described infrared focus-variable lens is plano-convex lens, and the planar side of described plano-convex lens is facing to described infrared light supply.
9. the infrared light compensating lamp of zoom as claimed in claim 1, is characterized in that, the material of described infrared focus-variable lens is PMMA or PC.
10. a video camera, is characterized in that, described video camera comprises the infrared light compensating lamp of zoom as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415981.7U CN203350578U (en) | 2013-07-11 | 2013-07-11 | Zooming infrared fill light and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415981.7U CN203350578U (en) | 2013-07-11 | 2013-07-11 | Zooming infrared fill light and camera |
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| Publication Number | Publication Date |
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| CN203350578U true CN203350578U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320415981.7U Expired - Fee Related CN203350578U (en) | 2013-07-11 | 2013-07-11 | Zooming infrared fill light and camera |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280978A (en) * | 2013-07-11 | 2015-01-14 | 杭州海康威视数字技术股份有限公司 | Zoom infrared light fill-in lamp and video camera |
| WO2019141005A1 (en) * | 2018-01-18 | 2019-07-25 | 杭州海康威视数字技术股份有限公司 | Light supplement lamp and camera equipment |
| CN115016201A (en) * | 2022-06-17 | 2022-09-06 | 杭州海康威视数字技术股份有限公司 | Zoom camera light supplementing system |
| CN116761050A (en) * | 2023-08-14 | 2023-09-15 | 合肥航谱时代科技有限公司 | Image acquisition system based on visible light and infrared fusion |
-
2013
- 2013-07-11 CN CN201320415981.7U patent/CN203350578U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280978A (en) * | 2013-07-11 | 2015-01-14 | 杭州海康威视数字技术股份有限公司 | Zoom infrared light fill-in lamp and video camera |
| WO2019141005A1 (en) * | 2018-01-18 | 2019-07-25 | 杭州海康威视数字技术股份有限公司 | Light supplement lamp and camera equipment |
| CN115016201A (en) * | 2022-06-17 | 2022-09-06 | 杭州海康威视数字技术股份有限公司 | Zoom camera light supplementing system |
| CN115016201B (en) * | 2022-06-17 | 2023-09-29 | 杭州海康威视数字技术股份有限公司 | Light supplementing system for zoom camera |
| CN116761050A (en) * | 2023-08-14 | 2023-09-15 | 合肥航谱时代科技有限公司 | Image acquisition system based on visible light and infrared fusion |
| CN116761050B (en) * | 2023-08-14 | 2023-11-03 | 合肥航谱时代科技有限公司 | Image acquisition system based on visible light and infrared fusion |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20200711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |