CN207527398U - A kind of light compensating lamp and video camera - Google Patents
A kind of light compensating lamp and video camera Download PDFInfo
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- CN207527398U CN207527398U CN201721630255.1U CN201721630255U CN207527398U CN 207527398 U CN207527398 U CN 207527398U CN 201721630255 U CN201721630255 U CN 201721630255U CN 207527398 U CN207527398 U CN 207527398U
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Abstract
The utility model embodiment provides a kind of light compensating lamp and video camera, and the light compensating lamp includes：Housing and the lamp plate in the housing；The housing has optical transmission window；The lamp plate is located at the housing bottom or side, and the interior inner surface in addition to the surface of emission of the face where the lamp plate and the optical transmission window of the housing is reflecting surface；Light-emitting component is provided on the lamp plate, the light sent out of the light-emitting component is sent out via the reflecting surface and the surface of emission, so that the surface brightness parameter of the optical transmission window is 3~100,000 every square metre of candelas；Face and the surface of emission where the lamp plate are parallel relation or overlapping relation.Using the utility model embodiment, the surface brightness of light filling lamp source can be reduced, so as to reduce dazzle intensity.
Description
Technical field
The utility model is related to shoot light filling technical field, more particularly to a kind of light compensating lamp and video camera.
Background technology
Recognition of face candid camera is a high-definition monitoring intelligence that can be tracked, identify to face, intelligently amplifying
Energy video camera, the general outline of people can only be seen by compensating for traditional cameras.This intelligent camera can directly capture people
Face as long as entering monitoring range, will grab record face, realize intelligent monitoring.Wherein, recognition of face candid camera is in light
Light filling can be carried out under dark environment, more accurately to identify face.
In the video camera captured in existing recognition of face, LED (Light Emitting Diode, light-emitting diodes are utilized
Pipe) secondary lens mode to video camera carry out light filling.The function of secondary lens is to converge the light emitting angle of LED light source again
The angle arbitrarily needed between into 5 ° to 160 ° carries out LED light source the optically focused of multi-angle, so as to reach the effect of light filling
Fruit.
But existing this light filling mode, light compensating lamp self brightness can be caused very high, reach ten tens of thousands of or even hundreds of thousands
Cd/m2The rank of (every square metre of candela) can generate human eye strong dazzle so that people is in the range of light-illuminating
It is interior, the irradiation (such as bow on foot or detour and walk) of light can be deliberately avoided, recognition of face is eventually led to and captures failure.
Utility model content
The utility model embodiment is designed to provide a kind of light compensating lamp and video camera, to reduce the table of light filling lamp source
Face brightness, so as to reduce dazzle intensity.Specific technical solution is as follows：
The utility model embodiment discloses a kind of light compensating lamp, and the light compensating lamp includes：Housing and positioned at the housing
Interior lamp plate；The housing has optical transmission window；
The lamp plate is located at the housing bottom or side, except the face where the lamp plate and described in the housing
Inner surface except the surface of emission of light window is reflecting surface；
It is provided with light-emitting component on the lamp plate, the light sent out of the light-emitting component is via the reflecting surface and described
The surface of emission is sent out, so that the surface brightness parameter of the optical transmission window is 3~100,000 every square metre of candelas；
Face and the surface of emission where the lamp plate are parallel relation or overlapping relation.
Optionally, the surface area of the optical transmission window is more than the surface area of the lamp plate, the surface area of the light-emitting component
Less than the surface area of the lamp plate.
Optionally, the light sent out of the light-emitting component is sent out via the reflecting surface and the surface of emission, so that institute
The ratio between minimum luminance value and maximum brightness value of optical transmission window surface each point is stated more than or equal to 80%.
Optionally, the optical transmission window is makrolon material or polymethyl methacrylate materials or polypropylene material
Material, the light transmittance of the optical transmission window is 40%~80%.
Optionally, the surface of emission is equipped with reflective coating.
Optionally, a plurality of light-emitting elements are provided on the lamp plate；
The multiple light-emitting component is evenly arranged on the lamp plate, cloth of the multiple light-emitting component on the lamp plate
Office is laid out for a Column Layout or multiple row.
Optionally, when the multiple light-emitting component the layout on the lamp plate be a Column Layout when, the optical transmission window
The surface of emission be more than 1.5 to the ratio between the spacing between the vertical range of the light-emitting component and the light-emitting component；
When layout of the multiple light-emitting component on the lamp plate is laid out, and the horizontal stroke between the light-emitting component for multiple row
To spacing it is identical with longitudinal pitch when, the vertical range of the surface of emission of the optical transmission window to the light-emitting component shines with described
The ratio between spacing between element is more than 1.5；
When layout of the multiple light-emitting component on the lamp plate is laid out, and the horizontal stroke between the light-emitting component for multiple row
When being differed to spacing and longitudinal pitch, the vertical range of the surface of emission of the optical transmission window to the light-emitting component is and described
The ratio between larger spacing is more than 1.5 in horizontal spacing and longitudinal pitch between light-emitting component.
Optionally, when the face where the lamp plate and the surface of emission are parallel relation, the reflecting surface is freely bent
Face；
When the face where the lamp plate and the surface of emission are overlapping relation, the reflecting surface is paraboloid.
Optionally, the light-emitting component is equipped with lens, and the lens are bitoric lens, and the lens enter including lens
Smooth surface and lens light-emitting surface.
Optionally, when the face where the lamp plate and the surface of emission are parallel relation, the reflecting surface is aspherical.
Optionally, the reflecting surface is makrolon material.
Optionally, the reflecting surface of the housing either reflects paint or diffusing reflection figure layer equipped with reflectance coating.
Optionally, the light-emitting component is LED lamp.
The utility model embodiment also discloses a kind of video camera, and the video camera includes light compensating lamp as described above, institute
Video camera is stated with the light compensating lamp to be detachably connected.
The light compensating lamp and video camera that the utility model embodiment provides, light compensating lamp include housing and in housings
Lamp plate；Housing has optical transmission window；Lamp plate is located at housing bottom or side, the interior face and optical transmission window except where lamp plate of housing
The surface of emission except inner surface be reflecting surface；Light-emitting component is provided on lamp plate, the light sent out of light-emitting component is via anti-
It penetrates face and the surface of emission is sent out, so that the surface brightness parameter of optical transmission window is 3~100,000 every square metre of candelas；Where lamp plate
Face and the surface of emission are parallel relation or overlapping relation.It is this on lamp plate use area source by way of, reduce light compensating lamp
The surface brightness of light source, and then apparent area of the light compensating lamp in observer's eyes direction is increased, so as to reduce dazzle intensity.
Certainly, any product or method for implementing the utility model do not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the first structure diagram of light compensating lamp that the utility model embodiment provides；
Fig. 2 (a) is the first structure diagram of light-emitting component in the light compensating lamp that the utility model embodiment provides；
Fig. 2 (b) is second of structure diagram of light-emitting component in the light compensating lamp that the utility model embodiment provides；
Fig. 2 (c) is the third structure diagram of light-emitting component in the light compensating lamp that the utility model embodiment provides；
Fig. 2 (d) is the 4th kind of structure diagram of light-emitting component in the light compensating lamp that the utility model embodiment provides；
Fig. 3 is second of structure diagram of light compensating lamp that the utility model embodiment provides；
Fig. 4 is the third structure diagram of light compensating lamp that the utility model embodiment provides；
Fig. 5 is the 4th of light compensating lamp the kind of structure diagram that the utility model embodiment provides
Fig. 6 is another structure diagram of light-emitting component in the light compensating lamp that the utility model embodiment provides；
Fig. 7 (a) is the outside drawing of light compensating lamp that the utility model embodiment provides；
Fig. 7 (b) is the rearview of light compensating lamp that the utility model embodiment provides；
Fig. 7 (c) is the front view of light compensating lamp that the utility model embodiment provides；
Fig. 8 (a) applies the front view in video camera for light compensating lamp of the prior art；
Fig. 8 (b) applies the rearview in video camera for light compensating lamp of the prior art；
Fig. 8 (c) applies the side view in video camera for light compensating lamp of the prior art；
Fig. 8 (d) applies the structure diagram in video camera for light compensating lamp of the prior art；
Fig. 9 (a) is that the light compensating lamp that the utility model embodiment provides applies the front view in video camera；
Fig. 9 (b) is that the light compensating lamp that the utility model embodiment provides applies the side view in video camera；
Fig. 9 (c) is that the light compensating lamp that the utility model embodiment provides applies the rearview in video camera；
The light compensating lamp surface of light source that Figure 10 is the light compensating lamp light source area of existing video camera and the utility model embodiment provides
Product comparison diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
At present, many monitoring devices, photographing device etc. are fitted with light compensating lamp, for certain due to lacking illuminance
Equipment or object carry out light supply.And during light filling, dazzle value is lighting device hair of the measurement in visual environment
The light gone out causes human eye the psychological parameter of discomfort subjective response, the too strong shooting effect for often influencing equipment of dazzle value
Discrimination of fruit or reduction equipment etc..
Wherein, the size of dazzle value is calculated according to the following formula.
Specifically, according to formula
Dazzle value is calculated, wherein, UGR represents dazzle value, LbRepresent background luminance, LaRepresent each lamps and lanterns in observer direction
Brightness, ω represents the solid angle that each lamp luminescence part forms observer's eyes, and p represents the position of each individually lamps and lanterns
Put index.
As can be seen that dazzle value (UGR) is related to four parameters from formula, it is respectively：With Lb(background luminance) and P
(location index of each individually lamps and lanterns) are inversely proportional, with La(brightness of each lamps and lanterns in observer direction) and ω (each lamps and lanterns hair
The solid angle that light part forms observer's eyes) it is directly proportional.Due to LbIt can not generally be controlled in the actual environment with the numerical value of p
System, therefore, the parameter that can mainly control has LaAnd ω.
Wherein, according to formula
The brightness of each lamps and lanterns in observer direction is calculated, wherein, LaRepresent the brightness of each lamps and lanterns in observer direction, IaTable
Show the lamp luminescence intensity in observer's eyes direction, Acos a represent lamps and lanterns in the projected area in observer's eyes direction, a tables
Show that lamp surface is found and the angle folded by observer's eyes direction.
According to formula
The solid angle that each lamp luminescence part forms observer's eyes is calculated, wherein, ω represents each lamps and lanterns hair
The solid angle that light part forms observer's eyes, ApRepresent lamps and lanterns luminous component in the apparent face in observer's eyes direction
The distance between product, r expression lamps and lanterns luminous component centers to observer's eyes.
According to formula
It can obtain, UGR and IaIt is directly proportional, it is inversely proportional with A.Therefore, by reducing UGR, the luminous intensity of lamps and lanterns can be reduced,
The area of lamps and lanterns can be increased.
But in video camera, clearly image is grasped in order to reach to flutter under certain monitoring distance, illuminated object must
Need obtain enough illumination can just meet the requirements, and the luminous intensity of lamps and lanterns cannot be reduced infinitely.So in white light light filling,
Light-emitting area using increase lamps and lanterns is more effective.
Based on this, the utility model embodiment is using the area (increasing lamps and lanterns area) of area source increase optical transmission window
Light compensating lamp designed by mode when carrying out light filling to video camera, can reduce the surface brightness of light source, reach the mesh for reducing dazzle
's.Detailed process is as follows：
The utility model embodiment discloses a kind of light compensating lamp, as shown in Figure 1, light compensating lamp includes：
Housing 1 and the lamp plate 2 in housing 1；Wherein, housing 1 has optical transmission window 3.
Lamp plate 2 is located at 1 bottom of housing or side, and the face at 2 place of lamp plate and the surface of emission 7 of optical transmission window 3 are removed in housing 1
Except inner surface except inner surface be reflecting surface 4.
Light-emitting component 5 is provided on lamp plate 2, the light 6 that light-emitting component 5 is sent out is sent out via reflecting surface 4 and the surface of emission 7,
So that the surface brightness parameter of optical transmission window 3 is 3~100,000 every square metre of candelas.
Here, due to increasing light-emitting area so that it is every that the luminance parameter of optical transmission window 3 is reduced to 3~100,000 candelas
Square metre, it is very high with light compensating lamp self brightness in the prior art, reach that ten is tens of thousands of or even every square metre of hundreds of thousands candela is compared,
The surface brightness of light filling lamp source is reduced by light compensating lamp provided by the utility model, and then increases light compensating lamp and is seeing
The apparent area in the person's of examining eyes direction, so as to reduce dazzle intensity.
Face and the surface of emission 7 where lamp plate are parallel relation or overlapping relation.
Specifically, the light-emitting window of optical transmission window, that is, light, there are the face of light transmission, i.e., the hair that light reflects away on optical transmission window
Penetrate face.Position of the lamp plate in housing can be this and shell itself in the bottom of housing or in the side of housing
Structure is related, for example, when housing is cube, position of the lamp plate in housing is in the cubical bottom, and works as housing
During for other irregular shapes or housing is interior only there are two during side, and position of the lamp plate in housing can be one of them
Side, and another side is reflecting surface, for receiving the light that light-emitting component is sent out, and by the light received reflection simultaneously
The surface of emission of optical transmission window is passed to, so that the surface of emission emits beam, so as to fulfill the effect of light filling.
Light-emitting component is provided on lamp plate, the light that light-emitting component is sent out is sent out via the surface of emission of reflecting surface and optical transmission window
Go out, here compared with the point light source that the prior art uses, lamp plate is that reduce the surface of light filling lamp source by area source bright
Degree.In addition, lamp plate can be direct LED light source, or the mode of LED light source+secondary lens.Light-emitting component can be
The various elements that light emitting diode (Light-Emitting Diode, LED), incandescent lamp bulb or neon lamp etc. can shine.
It can be seen that the light compensating lamp that the utility model embodiment provides, the lamp plate including housing and in housing；
Housing has optical transmission window；Lamp plate is located at housing bottom or side, the hair in the interior face and optical transmission window except where lamp plate of housing
The inner surface penetrated except face is reflecting surface；Light-emitting component is provided on lamp plate, the light sent out of light-emitting component is via reflecting surface
And the surface of emission is sent out, the face and the surface of emission where lamp plate are parallel relation or overlapping relation.It is this by lamp plate use face
The mode of light source, reduces the surface brightness of light filling lamp source, and then increases light compensating lamp in the apparent of observer's eyes direction
Area, so as to reduce dazzle intensity.
In the utility model an optional embodiment, the surface area of optical transmission window 3 is more than the surface area of lamp plate 2, hair
The surface area of optical element 5 is less than the surface area of lamp plate 2.
Specifically, when the surface area of optical transmission window 3 is more than the surface area of lamp plate 2, the surface area of light-emitting component 5 is less than lamp plate
During 2 surface area, the surface area of optical transmission window 3 is more than 5 surface area of light-emitting component, in this way, the surface area of optical transmission window 3 is more than now
There is the surface area of single led light compensating lamp in technology, by increasing light-emitting area, so as to reduce dazzle intensity.
In the utility model an optional embodiment, the light 6 sent out of light-emitting component 5 is via reflecting surface 4 and hair
It penetrates face 7 to send out, so that the ratio between the minimum luminance value of 3 surface each point of optical transmission window and maximum brightness value are greater than or equal to 80%.
Here, since the light 6 that light-emitting component 5 is sent out is by each point on 3 surface of optical transmission window so that 3 table of optical transmission window
The brightness value of face each point approaches, so that the light sent out is than more uniform.
In the utility model embodiment, optical transmission window 3 is makrolon material or polymethyl methacrylate materials,
Or polypropylene material, the light transmittance of optical transmission window 3 is 40%~80%.
Specifically, the material of optical transmission window can be optical transmission window be generally makrolon (Polycarbonate, PC),
The optics such as polymethyl methacrylate (Polymethylmethacrylate, PMMA), polypropylene (Polypropylene, PP)
Diffusion material, wherein, allow light in a transmitance of optical transmission window 40%~60% to be optimal, this is because transmitance is got over
Low optical uniformity is better.
In the utility model embodiment, the surface of emission 7 is equipped with reflective coating.
In the utility model embodiment, a plurality of light-emitting elements 5 can be provided on lamp plate 2.
In addition, a plurality of light-emitting elements 5 are evenly arranged on lamp plate 2, layout of a plurality of light-emitting elements 5 on lamp plate 2 is one
Column Layout or multiple row layout.
Specifically, as shown in Fig. 2 (a) and Fig. 2 (b), in order to improve the intensity of light source of light-emitting component 5, can be set on lamp plate 2
It is equipped with a plurality of light-emitting elements 5.In addition, this plurality of light-emitting elements 5 can be uniformly arranged on lamp plate 2, wherein, in Fig. 2 (a)
Layout of a plurality of light-emitting elements 5 on lamp plate 2 be a Column Layout, layout of a plurality of light-emitting elements 5 on lamp plate 2 in Fig. 2 (b)
For three Column Layouts, it can also be that other multiple rows are laid out, it is numerous to list herein, in this way, the light that light-emitting component 5 is sent out is more equal
It is even.
In addition, when a plurality of light-emitting elements 5 are when the layout on lamp plate 2 is laid out for multiple row, between the transverse direction between light-emitting component 5
Away from may be the same or different with longitudinal pitch, as shown in Fig. 2 (c), horizontal spacing l2 is more than longitudinal pitch l1.Such as Fig. 2
(d) shown in, horizontal spacing l2 is identical with longitudinal pitch l1.Here, the position of light-emitting component can be set according to actually required.
In the utility model an optional embodiment, when layout of a plurality of light-emitting elements 5 on lamp plate 2 is a row cloth
During office, the surface of emission 7 of optical transmission window 3 arrives the ratio between spacing between the vertical range of light-emitting component 5 and light-emitting component 5 and is more than 1.5；
When layout of a plurality of light-emitting elements 5 on lamp plate 2 is laid out, and horizontal spacing and longitudinal pitch between light-emitting component 5 for multiple row
When identical, the ratio between surface of emission 7 of optical transmission window 3 to the spacing between the vertical range of light-emitting component 5 and light-emitting component 5 is more than
1.5；When layout of a plurality of light-emitting elements 5 on lamp plate 2 is laid out, and the horizontal spacing between light-emitting component 5 and longitudinal direction for multiple row
When spacing differs, the surface of emission 7 of optical transmission window 3 arrives the vertical range of light-emitting component 5, between the transverse direction between light-emitting component 5
Away from being more than 1.5 with the ratio between spacing larger in longitudinal pitch.
Specifically, as shown in figure 3, when a plurality of light-emitting elements 5 are evenly arranged on lamp plate, these members that shine can be calculated
Interval S 2 between part 5, while light-emitting component 5 can be calculated to the vertical range S1 of the surface of emission 7 of optical transmission window 3, work as transmitting
When the ratio between the vertical range S1 of light-emitting component 5 and the interval S 2 of light-emitting component 5 are arrived more than 1.5 in face 7, which is sent out
Light so that the light filling effect of light compensating lamp is best.It should be noted that when layout of a plurality of light-emitting elements 5 on lamp plate 2 is
During one Column Layout, spacing of the S2 between the evenly arranged light-emitting component 5 of this row；When a plurality of light-emitting elements 5 are on lamp plate 2
It is laid out and is laid out for multiple row, and when the horizontal spacing between light-emitting component 5 is identical with longitudinal pitch, S2 is evenly arranged for this multiple row
Spacing between light-emitting component 5, for example, it may be horizontal spacing l2 or longitudinal pitch l1 in Fig. 2 (d)；When multiple luminous members
Layout of the part 5 on lamp plate 2 is multiple row layout, and when horizontal spacing between light-emitting component 5 and longitudinal pitch differ, and S2 is
Larger spacing in horizontal spacing and longitudinal pitch between light-emitting component 5 can be the horizontal spacing l2 in Fig. 2 (c).
In the utility model an optional embodiment, when the face where lamp plate 2 is parallel relation with the surface of emission 7,
Reflecting surface 4 is free form surface；When the face where lamp plate 2 is overlapping relation with the surface of emission 7, reflecting surface 4 is paraboloid.
Here, the face where lamp plate 2 and the face where the surface of emission 7 are parallel relation or overlapping relation, are specifically as follows：
The first situation：The face where face and the surface of emission where lamp plate is parallel to each other.
Specifically, as shown in Figure 1, light compensating lamp includes：Housing 1, the shape of housing 1 can be cubes and positioned at shell
Lamp plate 2 in body 1；Wherein, housing 1 has optical transmission window 3, and optical transmission window 3 is located at the outlet portion of housing 1 (cube)；Lamp plate 2
Positioned at housing 1 (cube) bottom, the face and the surface of emission 7 of optical transmission window 3 where lamp plate 2 are parallel to each other；Lamp plate is removed in housing 1
Face where 2 and the inner surface except the surface of emission of optical transmission window are reflecting surface 4；Light-emitting component 5 is provided on lamp plate 2, is shone
The light 6 that element 5 is sent out is sent out via the surface of emission 7 of reflecting surface 4 and optical transmission window 3.
Here, the face where lamp plate 2 and the face where the surface of emission 7 are parallel relation, in this way, lamp plate 2 housing just under
Face, the light 6 sent out on lamp plate 2 is by being directly emitted the reflection with reflecting surface 4, finally by the hair of optical transmission window 3 above
Face 7 is penetrated to shine.
Wherein, lamp plate 1 can be direct LED light source, or the mode of LED light source+secondary lens, reflecting surface 4
For free form surface, either reflectance coating or spraying reflection paint or diffusing reflection coating are plated in aspherical 4 surface of reflecting surface.Optical transmission window
3 surface of emission 7 can be optics diffusion material.
The second situation：The face where face and optical transmission window where lamp plate is overlapping relation.
Specifically, overlapping relation, which has, is divided into orthogonal and mutual out of plumb, when the face where lamp plate and optical transmission window institute
Face it is orthogonal when, as shown in figure 4, light compensating lamp includes：Housing 1, the shape of housing 1 can be irregular, Yi Jiwei
In the lamp plate 2 in housing 1；Wherein, housing 1 has optical transmission window 3；Lamp plate 2 is located at a side of housing 1,2 place of lamp plate
Face and the surface of emission 7 of optical transmission window 3 are orthogonal；Inner surface in housing 1 in addition to the face where lamp plate 2 is reflecting surface 4, instead
Penetrate another side that face 4 is located at housing 1；Light-emitting component 5 is provided on lamp plate 2, the light 6 that light-emitting component 5 is sent out is via anti-
Penetrate the surface of emission 7 of face 4 and optical transmission window 3.
Here, the face where lamp plate 2 and the face where optical transmission window 3 are vertical relation, in this way, the light sent out on lamp plate 2
Line 6, a part are sent out by way of direct projection from optical transmission window 3, most of to be reflected by reflecting surface 4, finally from optical transmission window
3 send out.
Likewise, wherein lamp plate 2, can be direct LED light source, or the mode of LED light source+secondary lens,
For free form surface, either reflectance coating or spraying reflection paint or diffusing reflection coating are plated in aspherical 4 surface of reflecting surface to reflecting surface 4.
The surface of emission 7 of optical transmission window 3 can be optics diffusion material.
When the face where lamp plate and the face where optical transmission window are orthogonal, as shown in figure 5, face where lamp plate with thoroughly
The angle in the face where light window can be any angle.Light compensating lamp includes：Housing 1, the shape of housing 1 be it is irregular, with
And the lamp plate 2 in housing 1；Wherein, housing 1 has optical transmission window 3；Lamp plate 2 is located at a side of housing 1,2 institute of lamp plate
Face and 3 place face of optical transmission window be certain angle；In except inner surface in housing 1 in addition to the face where lamp plate 2
Surface is reflecting surface 4, i.e. reflecting surface 4 is located at another side of housing 1；Light-emitting component 5, light-emitting component 5 are provided on lamp plate 2
The light 6 sent out is via reflecting surface 4 and the surface of emission 7 of optical transmission window 3.
For parallel and intersecting both of these case, dazzled to reduce brightness irregularities part speck on the surface of emission and brought to people
In the following manner may be used to ensure the brightness uniformity of the surface of emission in light sensation, so as to improve the brightness comfort of light compensating apparatus, tool
Body includes：
1st, it is optimal that the surface of emission of optical transmission window is more than 1.5 to the ratio between the distance of light-emitting component and the spacing of light-emitting component；
2nd, the uniformity of the surface of emission is improved using the even light design of wide-angle for the secondary lens applied on LED, thoroughly
Mirror is generally bitoric lens, including an incidence surface and a light-emitting surface surface of emission, by being realized to the optimization of lens face type
The even light of wide-angle；
3rd, for optical transmission window 3, a transmitance is optimal 40%~60%, and low optical uniformity is got over generally through rate
Better.
In the utility model an optional embodiment, light-emitting component 5 is equipped with lens 8, and lens 8 are saturating for hyperboloid
Mirror, lens 8 include lens incidence surface and lens light-emitting surface.
Specifically, as shown in fig. 6, light-emitting component 5 is equipped with lens 8, lens 8 include lens incidence surface and lens light extraction
Face, for lens incidence surface for receiving the light that light-emitting component is sent out, lens light-emitting surface is used for the light for receiving lens incidence surface
It sends out, by realizing the even light of wide-angle to the optimization of lens face type.Big angle is used for the secondary lens applied on light-emitting component
The even light design of degree can improve the uniformity of the surface of emission of optical transmission window.
In the utility model embodiment, reflecting surface 4 is free form surface.
Here, reflecting surface can be arbitrary surface, and reflecting surface is used for receiving the light that light-emitting component is sent out, and will be connect
The light of receipts reflects and passes to the surface of emission of optical transmission window, so that the surface of emission emits beam, so as to fulfill the effect of light filling.
In the utility model embodiment, when the face where lamp plate 2 is parallel relation with the surface of emission 7, reflecting surface 4 is non-
Spherical surface.
Here, reflecting surface can be aspherical so that light passes through the reflecting effect of reflecting surface more preferably.
In the utility model embodiment, reflecting surface 4 is makrolon material.
Here, the material of reflecting surface is makrolon material, can be makrolon material or the surface of high reflectance
The other materials of high reflectance coating is coated with, is generally mostly metal or plastics.
In the utility model embodiment, the reflecting surface of housing 1 either reflects paint or diffusing reflection figure layer equipped with reflectance coating.
Here, reflectance coating either reflects paint or the effect of diffusing reflection figure layer is provided to that light can be reflected, with
The light on lamp plate is made, to optical transmission window, to reduce the surface brightness of light filling lamp source, and then increase by reflective surface
Light compensating lamp observer's eyes direction apparent area, so as to reduce dazzle intensity.
In the utility model embodiment, light-emitting component 5 is LED lamp.
Compared with incandescent lamp bulb and neon lamp, the characteristics of light emitting diode, is：Operating voltage is very low (more several volts of some)；
Operating current very little (several milliamperes of some only zeros can shine)；Shock resistance and anti-seismic performance are good, and reliability is high, long lifespan；It is logical
Ovennodulation by electric current power can easily modulate luminous power.Due to there is these features, light emitting diode is at some
It is used as light source in photoelectric control equipment.
The outside drawing for the light compensating lamp that the utility model embodiment provides, Ke Yishi, as shown in Fig. 7 (a), optical transmission window 3
Surface area is more than the surface area of lamp plate 2, is more than the table of single led light compensating lamp in the prior art so as to the surface area of optical transmission window 3
Area compared with prior art, in the case where luminous intensity is identical, by increasing light-emitting area, can reduce dazzle intensity.
Specific structure chart may refer to Fig. 7 (b) and Fig. 7 (c).
A kind of video camera is also disclosed in the utility model embodiment, video camera 9 includes the benefit that above-described embodiment provides
Light lamp 10, wherein, video camera 9 is with light compensating lamp 10 to be detachably connected.
Here, video camera 9 is detachably connected with light compensating lamp, has been built in light compensating lamp in video camera not with the prior art
Together, wherein, light compensating lamp of the prior art is built in video camera, as shown in Fig. 8 (a), is pacified around the camera of video camera 9
Equipped with existing light compensating lamp 11, light filling is carried out to the object of shooting by the light that existing light compensating lamp 11 is sent out.Fig. 8 (b) is
Light compensating lamp of the prior art applies the rearview in video camera；Fig. 8 (c) is applied for light compensating lamp of the prior art and is being imaged
Side view in machine；Fig. 8 (d) applies the structure diagram in video camera for light compensating lamp of the prior art；In Fig. 8 (d),
Existing light compensating lamp 11 is specifically what is be made of pedestal 14, LED light 13 and optical transmission window 12, and pedestal 14 is to be set up directly on camera shooting
On machine 9, LED light is placed in pedestal 14, by the light that LED light 13 is sent out be directly over optical transmission window 12 with to video camera 9 into
Row light filling.
The light compensating lamp that the utility model embodiment provides is applied in video camera, and video camera 9 and light compensating lamp 10 are detachable
Connection.
Specifically, on video camera 9, using the light compensating lamp 10 in the utility model embodiment, video camera 9 is mended
Light so as to reduce the surface brightness of light source, achievees the purpose that reduce dazzle.According to practical application, entire light compensating lamp 10 can be with
The mode of 9 combination of video camera, as shown in Fig. 9 (a), light compensating lamp 10 can be the mode of combination with video camera 9, can be with
The lower section of video camera is fixed on by screw or buckle.The light compensating lamp provided by the utility model embodiment, can reduce
Light compensating lamp dazzle caused by human eye reduces the discomfort of people, and in video capture and the process of identification, people can look at prison straight
Equipment is controlled, so as to improve the success rate of face snap and identification.
Fig. 9 (b) is that the light compensating lamp that the utility model embodiment provides applies the side view in video camera；Fig. 9 (c) is this
The light compensating lamp that utility model embodiment provides applies the rearview in video camera；Fig. 9 (b), Fig. 9 (c) and Fig. 9 (a) are provided
Video camera and the structure of light compensating lamp be identical.
In addition, entire light compensating lamp may be other combining forms either individually make light filling lamps and lanterns be placed on side or
Other positions are video camera light filling.
Referring to Figure 10, Figure 10 is the light filling that light compensating lamp light source area and the utility model embodiment of existing video camera provide
Lamp source area comparison diagram.In Fig. 10, m1 is the light compensating lamp light source area of existing video camera, and m2 is the utility model embodiment
The light compensating lamp light source area of offer, it can be seen from fig. 10 that the light source area of m2 is more much larger than the light source area of m1.This practicality
It is exactly the increase hair by this in the case where luminous intensity is constant that the light compensating lamp that new embodiment provides, which is applied in video camera,
Light area to reduce the surface brightness of light filling lamp source, and then increases apparent area of the light compensating lamp in observer's eyes direction,
Dazzle intensity is reduced, so that in video capture and the process of identification, people can look at monitoring device straight, so as to improve face
The success rate captured and identified.
The above is only the preferred embodiment of the utility model only, is not intended to limit the protection model of the utility model
It encloses.Any modification, equivalent substitution, improvement and etc. made within the spirit and principles of the present invention, are all contained in this reality
With in novel protection domain.
Claims (14)
1. a kind of light compensating lamp, which is characterized in that including：Housing (1) and the lamp plate (2) in the housing (1)；It is described
Housing has optical transmission window (3)；
The lamp plate (2) is in the housing (1) bottom or side, the housing (1) except the face where the lamp plate (2)
It is reflecting surface (4) with the inner surface except the surface of emission (7) of the optical transmission window (3)；
Light-emitting component (5) is provided on the lamp plate (2), the light (6) sent out of the light-emitting component (5) is via the reflection
Face (4) and the surface of emission (7) are sent out, so that the surface brightness parameter of the optical transmission window (3) is often put down for 3~100,000 candelas
Square rice；
Face and the surface of emission (7) where the lamp plate are parallel relation or overlapping relation.
2. light compensating lamp according to claim 1, which is characterized in that the surface area of the optical transmission window (3) is more than the lamp
The surface area of plate (2), the surface area of the light-emitting component (5) are less than the surface area of the lamp plate (2).
3. light compensating lamp according to claim 1, which is characterized in that the light (6) sent out of the light-emitting component (5) via
The reflecting surface (4) and the surface of emission (7) are sent out so that the minimum luminance value of the optical transmission window (3) surface each point with most
The ratio between big brightness value is greater than or equal to 80%.
4. light compensating lamp according to claim 1, which is characterized in that the optical transmission window (3) is makrolon material or gathers
Methyl methacrylate material or polypropylene material, the light transmittance of the optical transmission window (3) is 40%~80%.
5. light compensating lamp according to claim 1, which is characterized in that the surface of emission (7) is equipped with reflective coating.
6. light compensating lamp according to claim 1, which is characterized in that be provided with a plurality of light-emitting elements on the lamp plate (2)
(5)；
The multiple light-emitting component (5) is evenly arranged on the lamp plate (2), and the multiple light-emitting component (5) is in the lamp plate
(2) layout on is laid out for a Column Layout or multiple row.
7. light compensating lamp according to claim 6, which is characterized in that when the multiple light-emitting component (5) is in the lamp plate (2)
On layout when being a Column Layout, the vertical range of the surface of emission (7) of the optical transmission window (3) to the light-emitting component (5) with
The ratio between spacing between the light-emitting component (5) is more than 1.5；
When layout of the multiple light-emitting component (5) on the lamp plate (2) be multiple row layout, and the light-emitting component (5) it
Between horizontal spacing it is identical with longitudinal pitch when, the surface of emission (7) of the optical transmission window (3) to the light-emitting component (5) hangs down
Directly the ratio between spacing between distance and the light-emitting component (5) is more than 1.5；
When layout of the multiple light-emitting component (5) on the lamp plate (2) be multiple row layout, and the light-emitting component (5) it
Between horizontal spacing and longitudinal pitch when differing, the surface of emission (7) of the optical transmission window (3) to the light-emitting component (5)
The ratio between larger spacing is more than 1.5 in horizontal spacing and longitudinal pitch between vertical range, with the light-emitting component (5).
8. light compensating lamp according to claim 1, which is characterized in that when the face where the lamp plate (2) and the surface of emission
(7) for parallel relation when, the reflecting surface (4) is free form surface；
When the face where the lamp plate (2) and the surface of emission (7) are overlapping relation, the reflecting surface (4) is paraboloid.
9. light compensating lamp according to claim 1, which is characterized in that the light-emitting component (5) is equipped with lens (8), described
Lens (8) are bitoric lens, and the lens (8) include lens incidence surface and lens light-emitting surface.
10. light compensating lamp according to claim 1, which is characterized in that when the face where the lamp plate (2) and the surface of emission
(7) for parallel relation when, the reflecting surface (4) is aspherical.
11. light compensating lamp according to claim 1, which is characterized in that the reflecting surface (4) is makrolon material.
12. light compensating lamp according to claim 1, which is characterized in that the reflecting surface (4) of the housing (1) is equipped with reflectance coating
Either reflection paint or diffusing reflection figure layer.
13. according to claim 1~12 any one of them light compensating lamp, which is characterized in that the light-emitting component (5) is luminous two
Pole pipe LED light.
14. a kind of video camera, which is characterized in that the video camera (9) includes the benefit as described in any one of claim 1~13
Light lamp (10), the video camera (9) is with the light compensating lamp (10) to be detachably connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630255.1U CN207527398U (en) | 2017-11-29 | 2017-11-29 | A kind of light compensating lamp and video camera |
| PCT/CN2018/098525 WO2019105059A1 (en) | 2017-11-29 | 2018-08-03 | Fill light and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630255.1U CN207527398U (en) | 2017-11-29 | 2017-11-29 | A kind of light compensating lamp and video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207527398U true CN207527398U (en) | 2018-06-22 |
Family
ID=62580993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721630255.1U Active CN207527398U (en) | 2017-11-29 | 2017-11-29 | A kind of light compensating lamp and video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207527398U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194883A (en) * | 2018-10-24 | 2019-01-11 | 浙江大华技术股份有限公司 | A kind of light compensating lamp device and capture apparatus |
| WO2019105059A1 (en) * | 2017-11-29 | 2019-06-06 | 杭州海康威视数字技术股份有限公司 | Fill light and camera |
| CN113382130A (en) * | 2020-03-09 | 2021-09-10 | 杭州海康威视数字技术股份有限公司 | Facula video acquisition device and light filling module |
| WO2022142356A1 (en) * | 2020-12-30 | 2022-07-07 | 杭州海康威视数字技术股份有限公司 | Light supplementing lamp for hemispherical camera and hemispherical camera |
-
2017
- 2017-11-29 CN CN201721630255.1U patent/CN207527398U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105059A1 (en) * | 2017-11-29 | 2019-06-06 | 杭州海康威视数字技术股份有限公司 | Fill light and camera |
| CN109194883A (en) * | 2018-10-24 | 2019-01-11 | 浙江大华技术股份有限公司 | A kind of light compensating lamp device and capture apparatus |
| CN113382130A (en) * | 2020-03-09 | 2021-09-10 | 杭州海康威视数字技术股份有限公司 | Facula video acquisition device and light filling module |
| WO2022142356A1 (en) * | 2020-12-30 | 2022-07-07 | 杭州海康威视数字技术股份有限公司 | Light supplementing lamp for hemispherical camera and hemispherical camera |
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