CN208399869U - A kind of light compensating lamp and camera - Google Patents
A kind of light compensating lamp and camera Download PDFInfo
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- CN208399869U CN208399869U CN201821192962.1U CN201821192962U CN208399869U CN 208399869 U CN208399869 U CN 208399869U CN 201821192962 U CN201821192962 U CN 201821192962U CN 208399869 U CN208399869 U CN 208399869U
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Abstract
The utility model embodiment provides a kind of light compensating lamp and camera, and wherein the light compensating lamp includes light source and lens.The lens have first surface, and the bottom of lens has curved surface cavity, and curved surface cavity forms the second curved surface in lens interior.Light source is arranged in the curved surface inside cavity；The light that light source issues passes through the refraction of the second curved surface and the first surface, forms the optical path of preset direction.Since the light of first surface all angles reaches first surface, all most of light can will not be projected to by perimeter after superrefraction by first surface, to realize large-scale wide-angle light filling close to the angle of total reflection.
Description
Technical field
The utility model relates to monitoring device technical fields, more particularly to a kind of light compensating lamp and camera.
Background technique
With the continuous development of hardware technology and the raising of people's awareness of safety, various security protections, monitoring device are obtained
More and more applications, for example, the camera in urban transportation, the camera etc. of license plate for identification in parking lot.
Under many application scenarios, monitoring device when being acquired to the image information in scene, in the scene from
Right light or other light sources, the image information of complete display can be collected insufficient for monitoring device.So in such case
Under, it is necessary to monitoring device carries out light filling to the scene, to adopt by itself possessed light source, such as light compensating lamp equipment
Collect the image information of the complete display in the scene.
In the prior art, light compensating lamp is when carrying out light filling, as shown in Figure 1, the light that light-emitting component 101 is issued passes through
The refraction of light-distribution lens 102, what can be dissipated is projeced into certain region.However, due to the front end face of light-distribution lens 102
103 be plane mirror, so, when incident light angle is excessive, light 104 can be made close to total reflection, so that passing through
The light 104 of front end face 103 is very weak, and then cannot achieve wide-angle light filling, so that can not fill for the fringe region of scene
The light filling divided.
Utility model content
The utility model embodiment is designed to provide a kind of light compensating lamp and camera, to realize wide-angle light filling.Specifically
Technical solution is as follows:
The utility model embodiment provides a kind of light compensating lamp, and the light compensating lamp includes: light source and lens；
The lens are convex lens structures, and the curved surface of the convex lens structures is first surface；
The bottom of the lens has curved surface cavity, and the curved surface cavity forms the second curved surface in the lens interior；
The light source is arranged in the curved surface inside cavity；
The light that the light source issues passes through the refraction of second curved surface and the first surface, forms preset direction
Optical path.
Optionally, second curved surface vertex is passed through in the curved surface cavity and is first axle perpendicular to the axis of horizontal plane
Line；
Pass through the first surface vertex in the lens and is second axis perpendicular to the axis of horizontal plane；
There is pre-determined distance between the first axle and the second axis, keep the curved surface cavity and the lens inclined
Heart arrangement.
Optionally, the curved surface cavity is the semicircle cavity of bottom opening, and the curvature portion of the semicircle cavity exists
The lens interior forms second curved surface；
The opening of the curved surface cavity, is arranged on the bottom surface of the lens.
Optionally, the bottom of the lens is cascaded surface；
The first end face of the cascaded surface is horizontal plane, and the opening of the curved surface cavity is arranged in the first end face；
The second end face of the cascaded surface is parallel with the first end face, and close to the first surface；
The first end face is connected with the second end face by third curved surface；
The third curved surface forms concave curved surface in the bottom of the lens.
Optionally, the edge of the lens has protruding portion；
The protruding portion is provided with mounting hole.
Optionally, the protruding portion is connected with the bottom of the lens by the 4th curved surface；
4th curved surface forms concave curved surface in the bottom of the lens.
Optionally, the first surface and second curved surface are iteration curved surface.
Optionally, the light source is Light-emitting diode LED light source.
The utility model embodiment additionally provides a kind of camera, and the camera includes any of the above-described light filling
Lamp.
Optionally, the camera further include: fuselage, camera lens, camera lens front cover and lamp plate；
The camera lens is mounted on the front end face of the fuselage；
The camera lens front cover is connect with the front end face of the fuselage, and the camera lens passes through the center on the camera lens front cover
Hole protrudes from the end face of the camera lens front cover；
The lamp plate is fixedly connected with the camera lens front cover, and the light source in the light compensating lamp is mounted on the lamp plate；
The light that lens in the light compensating lamp are fixedly connected with the camera lens front cover, and will be installed on the lamp plate
Source is set in the curved surface cavity of the lens.
Optionally, the camera further include: euphotic cover；
The euphotic cover is connected with the camera lens front cover, and the light compensating lamp is set to the euphotic cover and the camera lens
In the cavity that front cover is formed；
The camera lens passes through the centre bore of the euphotic cover, protrudes from the front end face of the euphotic cover.
Optionally, the light source in the light compensating lamp is infrared LED lamp；
The euphotic cover is the infrared light transmission lid that infrared light can only be made to pass through.
Optionally, the camera further include: lens protective cover；
The lens protective cover is connect with the camera lens front cover, by the part mirror for protruding from camera lens front cover end face
Head is set in the cavity of the protective cover.
A kind of light compensating lamp and camera provided by the embodiment of the utility model, wherein the light compensating lamp includes light source and lens.
The lens have first surface, and the bottom of lens has curved surface cavity, and curved surface cavity forms the second curved surface in lens interior.Light source
It is arranged in the curved surface inside cavity；The light that light source issues passes through the refraction of the second curved surface and the first surface, is formed pre-
The optical path of set direction.Since the light of first surface all angles reaches first surface, will not all lead to close to the angle of total reflection
Perimeter can be projected to for most of light after superrefraction by crossing first surface, to realize large-scale wide-angle light filling.
Certainly, any product or method for implementing the utility model do not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
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 is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart of the mirror of light filling in the prior art provided by the embodiment of the utility model；
Fig. 2 is the first structure chart of light compensating lamp provided by the embodiment of the utility model；
Fig. 3 is the light path schematic diagram of light compensating lamp provided by the embodiment of the utility model；
Fig. 4 is second of structure chart of light compensating lamp provided by the embodiment of the utility model；
Fig. 5 is the first structure chart of camera provided by the embodiment of the utility model；
Fig. 6 is the structure chart of camera lens front cover provided by the embodiment of the utility model；
Fig. 7 is the schematic diagram of camera in the prior art provided by the embodiment of the utility model；
Fig. 8 is second of structure chart of camera provided by the embodiment of the utility model.
Each component Name of the Fig. 1 into Fig. 8 and the corresponding relationship between appended drawing reference are as follows:
Light-emitting component 101, light-distribution lens 102, front end face 103, light 104；
Light source 201, lens 202, curved surface cavity 210, first surface 211, the second curved surface 212, third curved surface the 213, the 4th
Curved surface 214, first end face 221, second end face 222, the first light 301, the second light 302, third light 303, the 4th light
304, fuselage 501, camera lens 502, camera lens front cover 503, lamp plate 504, euphotic cover 505, lens protective cover 506, sealing ring 507,
Five light 701, the 6th light 801.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, 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 embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to fig. 2, Fig. 2 is the first structure chart of light compensating lamp provided by the embodiment of the utility model.
The light compensating lamp includes: light source 201 and lens 202.Lens 202 are convex lens structures, and the curved surface of convex lens structures is
First surface 211.
Light source 201 can be the various light-emitting components that can be shone, in practical applications, in order to reduce energy consumption, and
And improve light-source brightness.Preferably, light source 201 can be LED (Light Emitting Diode, light emitting diode) light source,
When light source 201 is using LED light source, whole light that light source 201 can be made to issue are parallel with respect to optical axis, to be more advantageous to logical
Lens 202 are crossed to be adjusted the direction of optical path and angle etc..Specifically, in order to enable light source 201 can be in varying environment item
It is used under part, light source 201 can be the diversified forms such as infrared LED light source or visible LED light source, to meet different benefits
Light needs.It should be noted that in figure for convenience, the optical axis drawn by a dotted line is the virtual center of light source 201
Axis is not in the optical axis in practice.
As shown in Fig. 2, lens 202 are as general as convex lens structures, the outwardly projecting curved surface in convex lens structures is the
One curved surface 211.Lens 202 can be made of multiple materials such as resin, plastics, glass, in practical applications, can be according to need
Select the material of different refractivity.
The bottom of lens 202 has curved surface cavity 210, and curved surface cavity 210 forms the second curved surface 212 in lens interior.It is bent
Face cavity 210 is the hollow cavity of surface openings, and the opening of the curved surface cavity 210 can be set in the bottom of lens 202.It is bent
The curved surface of face cavity 210 forms second comprehensive 212 inside lens 202.
Specifically, curved surface cavity 210 can be the semicircle cavity of bottom opening, the curvature portion of the semicircle cavity exists
The second curved surface 212 is formed inside lens 202.The opening of curved surface cavity 210 is arranged on the bottom surface of lens 202.Wherein, semicircle
Shape cavity is not necessarily standard semicircle, is also possible to the cavity of the diversified forms such as ellipse.Specifically, the curvature of semicircle cavity
Radius can be obtained by calculating, or may be the cavity of the curved surface composition of variable curvature.The curved surface cavity 210, which has, to be opened
Mouthful, so that can be communicated with the outside world by the opening inside curved surface cavity 210.
Light source 201 can be set inside curved surface cavity 210, so that the light that light source 201 is issued, at least needs
After refraction twice by the second curved surface 212 and first surface 211, it can be projected in perimeter.Due to first
Curved surface 211 is curved-surface structure, when the light that light source 201 issues reaches first surface 211 by the refraction of the second curved surface 212, all
It will not be close to the angle of total reflection, so as to be projected to most of light after superrefraction by first surface 211
Perimeter realizes large-scale wide-angle light filling.
In practical application, the relative position of curved surface cavity 210 and lens 202, can according to need and be designed, work as song
When the relative position difference of face cavity 210 and lens 202, the light finally reflected can be made to generate different optical paths.Institute
With the optical path in order to obtain preset direction, leading to can come in fact by adjusting the relative position of curved surface cavity 210 and lens 202
It is existing.
In embodiments of the present invention, by 212 vertex of the second curved surface and perpendicular to horizontal plane in curved surface cavity 210
Axis is first axle；Pass through 211 vertex of first surface in lens 202 and is second axis perpendicular to the axis of horizontal plane；The
There is pre-determined distance between one axis and second axis, make curved surface cavity 210 and 202 arranged off-centre of lens.Wherein first axle
And second axis, simply to illustrate that the axis that its positional relationship fictionalizes, in practice and is not present.
From figure 2 it can be seen that the bottom of lens 202, is provided with hollow curved surface cavity 210, curved surface cavity 210 is opened
It is located at the bottom of lens 202 at mouthful.The inner wall of curved surface cavity 201 is the second curved surface 212.Light source 201 may be mounted at curved surface chamber
Inside body 201, as shown in Fig. 2, there is pre-determined distance between 202 second axis of 210 first axle of curved surface cavity and lens, i.e., it is bent
Face cavity 210 and 202 arranged off-centre of lens.It is designed specifically, pre-determined distance can according to need, does not limit tool herein
Body size.Due to curved surface cavity 210 and 202 arranged off-centre of lens, so that between first surface 211 and the second curved surface 212
Lens thickness gradual change, such as structure shown in Fig. 2 has occurred, lens between first surface 211 and the second curved surface 212 are thick
It spends gradually thinning from left to right.In this way, so that the light that light source 201 is issued, reaches first surface 211
When, the incident angle of light is different, so that the refraction side of light is also not quite identical.In practical applications,
By the geometrical relationship of light and the refractive index of lens 202, first surface 211 can be calculated and the second curved surface 212 is respective
The offset distance at the center of radius of curvature and curved surface cavity 210 and the center of lens 202.So that light can be by pre-
First designed optical path is projected to perimeter.The light that light source 201 issues passes through the second curved surface 212 and first surface
211 refraction forms the optical path of preset direction.
The light that light source 201 is issued first passes through the second curved surface 212, after the refraction of the second curved surface 212, then arrives
Up to first surface 211, since first surface 211 is curved surface, the normal of first surface 211 and the light of 201 emitted light of light source
Axis is in an angle, so that marginal incident to 211 light of first surface has lesser incidence angle, it being capable of larger proportion generation folding
It penetrates.So the light of all angles reaches first surface 211, all first surface 211 will not be passed through close to the angle of total reflection
Most of light can be projected to perimeter after superrefraction.For example, participating in Fig. 3, several are schematically depicted in Fig. 3
The optical path of light.From figure 3, it can be seen that refraction of first light 301 by the second curved surface 212 and first surface 211, forms
Close to horizontal optical path.To realize large-scale wide-angle light filling.
Also, in the utility model embodiment, due to curved surface cavity 210 and 202 arranged off-centre of lens, so, it can be with
By adjusting at a distance from 202 bias of curved surface cavity 210 and lens or position, the adjustment to optical path can be realized, so as to make
Obtaining the light that light source 201 issues can be projected by pre-designed optical path or angle.For example, as shown in figure 3, curved surface
Cavity 210 by the right direction arranged off-centre into figure so that close to right side the second light 302 optical path to light source 201
Optical axis direction it is close.
Referring to figs. 2 and 3, in practical applications, in light compensating lamp provided by the embodiment of the utility model lens 202 bottom
It can be cascaded surface.
The first end face 221 of cascaded surface is horizontal plane, and the opening of curved surface cavity 210 can be set in the first end face 221
On.
The second end face 222 of cascaded surface is parallel with first end face 221, and close to first surface 211.
Light compensating lamp provided by the embodiment of the utility model can be generally installed in the equipment such as camera.In installation process
In, general light source 201 is separately installed with lens 202, such as light source 201 may be mounted in the lamp plate inside camera,
And lens 202 may be mounted on the shells such as external end cap.The shells such as end cap can have through-hole, and light source 201 is logical across this
Hole protrudes from end cap.So the bottom of the lens 202 can be rank in order to more easily install to lens 202
Tread.The first end face 221 of cascaded surface protrudes downwards, so as to protrude into the through-hole of the shells such as end cap, so that light source 201
It can be mounted on inside 221 curved surface cavity 210 of first end face.Second end face 222 is lower than first end face 221, to work as first end
When face 221 is protruded into the through-hole of the shells such as end cap, second end face 222 can come into full contact with the surface of the shells such as end cap, thus
It realizes and is fixedly connected with the shells such as end cap, for example, being attached by way of fastening glue with shells such as end caps.Also,
During the installation process, cascaded surface is formed by by second end face 222 and first end face 221, enables to lens 202 and light source
201 form better seal effect, improve the degree of protection of product.
First end face 221 is connected with second end face 222 by third curved surface 213, and third curved surface 213 is in lens 202
Concave curved surface is formed on bottom.
When the bottom of lens 202 is cascaded surface, the first end face 221 and second end face 222 of cascaded surface can be by the
Three curved surfaces 213 are attached and transition.Because light source 201 is mounted on inside curved surface cavity 210, curved surface cavity 210 is arranged again
In first end face 221 relatively outstanding.So the light that light source is issued may expose to first end face 221 and second end
The junction in face 222.By the third curved surface 213 of first end face 221 and 222 junction of second end face, can will be exposed to
The light of three curved surfaces 213 is reflected, to be projected by preset optical path to perimeter.Since third curved surface 213 is
To the concave curved surface of 202 inner recess of lens, so that the incidence angle of light can be made when light exposes to third curved surface 213
Degree is close to total reflection, so that light as much as possible can be totally reflected, to press preset optical path to perimeter
It is projected, avoids light leakage.For example, the third light 303 in Fig. 3 makes third light by the reflection of third curved surface 213
303 optical path is substantially parallel with optical axis.
The collection of the part high angle scattered light issued to light source 201 is realized by third curved surface 213, so that this part
Light can be also projected in perimeter, improve the utilization rate of light source 201, and avoid light from the side of lens 202
Caused by edge projects the problems such as light leakage.
Referring to fig. 2 to Fig. 4, in order to enable light compensating lamp provided by the utility model can be installed more easily.At this
In the light compensating lamp that utility model provides, the edge of lens 202 has protruding portion 401.Protruding portion 401 is provided with mounting hole.
As shown in figure 4, the edge of 202 surrounding of lens can have protruding portion 401.Protruding portion 401 can be adopted with lens 202
With integrally formed structure, it is also possible to individual part and is constituted and being fixedly connected by with lens 202.Protruding portion 401 exists
Different location can have different width, for example, shown in Fig. 4, in the edge protruding portion 401 close to curved surface cavity 210
It can be wider.Be conducive to that mounting hole is arranged on protruding portion 401.
Mounting hole can be used to realize being fixedly connected or positioning for light compensating lamp provided by the utility model and other equipment.
For example, the mounting hole and end can be passed through when light compensating lamp provided by the utility model is mounted on the shells such as the end cap of camera
The shells such as lid realize screw connection, or are protruded accordingly by shells such as end caps, realize between the shells such as light compensating lamp and end cap
Positioning.It is designed specifically, mounting hole can according to need in the position of protruding portion 401, does not limit again.
In embodiments of the present invention, protruding portion 401 can be made of lighttight material, or on protruding portion 401
Cover lighttight coating.To which the light that light source 201 is issued will not project from the position of protruding portion 401.By setting
Protruding portion 401 is set, further the optical path for passing through the light that lens 202 project can also be adjusted.It realizes light source
201 light issued are projected by preset optical path.
In conjunction with the above embodiments, when the edge of lens 202 has protruding portion 401, referring to fig. 2 and Fig. 3, protruding portion
401 can be connected with the bottom of lens 202 by the 4th curved surface 214.4th curved surface 214 forms recessed in the bottom of lens 202
Curved surface.
The effect of 4th curved surface 214 is similar to third curved surface 213, and the close bottom light that light source 201 issues can pass through
The reflection of 4th curved surface 214, is projected to perimeter.For example, the 4th light 304 shown in Fig. 3, passes through the 4th curved surface
214 refraction keeps the optical path of the 4th light 304 substantially parallel with optical axis.In the utility model embodiment, pass through the 4th curved surface
214 further improve the utilization rate of light source 201, avoid light and ask from light leakage etc. caused by the injection of the edge of lens 202
Topic.
In embodiments of the present invention, in order to guarantee that the light of light compensating lamp provided by the utility model can be by preset optical path
It is incident upon in the projection of perimeter, it can be according to the range of the perimeter of wanted throw light and between light compensating lamp
Distance, retrospectively calculate go out the parameters such as the radius of curvature of first surface 211, the second curved surface 212, but due to single radius of curvature without
Method meets the light filling in the region of different depth and range.So in embodiments of the present invention, first surface 211 and the second curved surface
212 be iteration curved surface.Go out final first surface 211 and the second curved surface by the curve matching of various different curvature radius
212。
Specifically, the region that can treat throw light first carries out calculating analysis, it is many subdivisions by the region division
Region, to can have be not both the depth of field and range in region of each subdivision.The region of each corresponding subdivision, calculates separately
The radius of curvature of first surface 211 corresponding with the region and the part curved surface in the second curved surface 212 out.It is somebody's turn to do so that light passes through
When the curved surface of part, can its light can be uniformly projected in the region of the subdivision by the refraction angle of light.Specifically
Calculation can use existing optics and geometric calculation method, and details are not described herein.
After the radius of curvature of the corresponding part curved surface in the region all segmented has been calculated.Can by various pieces curved surface into
The free iteration of row, free iteration ensure that the transition alternation between various pieces curved surface does not generate optical path sharply bifurcated, will not lead
It causes uneven with light transition.
By the free iteration of various pieces curved surface, to respectively constitute complete first surface 211 and the second curved surface 212.
So that light passes through the refraction of first surface 211 and the second curved surface 212, can uniformly be carried out to the region of each subdivision
Projection realizes light filling to the region of each subdivision.
Since first surface 211 and the second curved surface 212 are iteration curved surface, radius of curvature is the value gradually changed, so
In the utility model embodiment, the radius of curvature of first surface 211 and the second curved surface 212 is not limited, in practical applications,
It can be according to the scene for specifically needing to carry out light filling, to calculate the respective specific of first surface 211 and the second curved surface 212
Geomery.
In practical applications, light compensating lamp provided by the embodiment of the utility model can be applied to various types of cameras
In, light filling is carried out for region captured by the camera.So the utility model embodiment also discloses a kind of camera, it should
Camera can be using any of the above-described light compensating lamp.
In camera provided by the embodiment of the utility model, light compensating lamp can be installed on around cam lens, in reality
Now to the shooting area wide-angle light filling of camera on the basis of, by adjusting the bias between lens in light compensating lamp and curved surface cavity
Distance, can enable light compensating lamp issue light projected along preset optical path, thus preferably to shooting preset into
Row light filling.
With reference to the accompanying drawing, by taking a kind of camera as an example, it is detailed to camera provided by the embodiment of the utility model into
Row description.When light compensating lamp provided by the embodiment of the utility model is mounted in other kinds of camera, structure and installation side
Formula is same or like with the utility model embodiment, and those skilled in the art can be easy by the utility model embodiment
By light compensating lamp provided by the embodiment of the utility model be applied to other kinds of camera in.
Referring to Fig. 5, Fig. 5 is the first structure chart of camera provided by the embodiment of the utility model.The camera includes
Light compensating lamp, fuselage 501, camera lens 502, camera lens front cover 503 and lamp plate 504.
Camera lens 502 is mounted on the front end face of fuselage 501.Camera lens front cover 503 is connect with the front end face of fuselage 501, camera lens 502
Centre bore on camera lens front cover 503 protrudes from the end face of camera lens front cover 503.
Fuselage 501 is the main part of camera, and the inside of fuselage 501 may include various control circuits, controller, biography
The components such as dynamic device, to realize the various functions of camera.
The front end face of fuselage 501 it is upper, can be connected through a screw thread or the modes such as screw are connect with camera lens 502.Camera lens 502
For the component for shooting image information.Image information captured by camera lens 502 can be handled, example inside fuselage 501
It is such as encoded and is transmitted.
Camera lens front cover 503 is the shell being mounted on the front end face of fuselage 501, for providing peace for components such as light compensating lamps
Dress basis.And there is centre bore on camera lens front cover 503, camera lens 502 is enabled to pass through the centre bore, realize to camera lens 502
Support and fixation.
Lamp plate 504 is fixedly connected with camera lens front cover 503, and the light source 201 in light compensating lamp is mounted on lamp plate 504.
Lamp plate 504 can be integrated circuit board, the circuit that can be controlled light source 201 is integrated with above, for example, can
To provide power supply for light source 201, and control opening or closing for light source 201.
Light source 201 in light compensating lamp may be mounted on lamp plate 504, then install the lamp plate 504 for being equipped with light source 201
On camera lens front cover 503.Certainly, lamp plate 504 can be connected by modes such as data lines with fuselage 501, so that in fuselage 501
The elements such as controller can be realized the control to lamp plate 504.
Lamp plate 504 can be directly installed on camera lens front cover 503.Or, it is preferred that it can be as shown in figure 5, lamp plate 504
Camera lens front cover 503 be may be mounted at close to the inside of front end face.It is provided with corresponding through-hole on camera lens front cover 503 simultaneously, makes
The through-hole can be passed through by obtaining light source 201, so that the structure of camera is more compact.
Lens 202 in light compensating lamp are fixedly connected with camera lens front cover 503, and the light source 201 installed on lamp plate 504 is set
It is placed in the curved surface cavity of lens 202.
As shown in figure 5, lens 202 can be fixedly connected with camera lens front cover 503 by modes such as Nian Jie, screw connections, when
Lamp plate 504 is mounted on the inside of camera lens front cover 503, and when the light source 201 on lamp plate 504 passes through through-hole, lens 202 be may be mounted at
At the position of the through-hole, and light source 201 is mounted in the curved surface cavity of lens 202.Referring to Fig. 6, lens 202 can pass through
Mounting hole possessed by itself realizes the positioning with camera lens front cover 503, and by way of glue sticking, so that lens 202
It is mounted on camera lens front cover 503.
As shown in Figure 5 and Figure 6, it in camera provided by the embodiment of the utility model, is respectively equipped in the two sides of camera lens 502
One light compensating lamp.In practical applications, the position of light compensating lamp and quantity, which can according to need, is configured.
Referring to Fig. 7, in existing camera, due to the light compensating lamp using routine, when light compensating lamp is arranged around camera lens
When, the optical path for being difficult the light issued to light compensating lamp is designed and adjusts.The light that light compensating lamp issues is easy to be projected to
On camera lens.For example, the 5th light 701 shown in fig. 7, has been projected directly on camera lens.Camera lens is in shooting image information in this way
When, the light being projected directly on camera lens will impact camera lens, and shade will be generated in captured image information, drop
Low picture quality.
In camera provided by the utility model embodiment, the light source 201 of light compensating lamp is mounted on the curved surface chamber of lens 202
In vivo, curved surface cavity and 202 arranged off-centre of lens, so that the light that issues of light source 201 can be by being pre-designed
Good optical path or angle is projected.
Referring to Fig. 8, the optical path of individual rays is schematically depicted in Fig. 8, as can be seen from Figure 8, is closed by geometry
The refractive index of system and lens 202, reasonably calculates the radius of curvature of lens 202, the subsequent corrosion and curved surface of curved surface cavity
After the eccentric distance of cavity and lens 202.The light that light source 201 is issued can be projected by designed optical path, e.g., figure
The 6th light 801 in 8 is the light near 502 direction of portrait attachment that light compensating lamp can project, and the 5th light 801 is by folding
The optical path generated after penetrating avoids the position of camera lens 502, so that light caused by light source 201 will not be projected to camera lens
It on 502, and then avoids in the prior art, casting the problem of picture quality caused by light reduces on camera lens.
In conjunction with above embodiment, as shown in figure 5, can also be wrapped in camera provided by the embodiment of the utility model
Include euphotic cover 505.
Euphotic cover 505 is connected with camera lens front cover 503, and light compensating lamp is set to euphotic cover 505 and is formed with camera lens front cover 503
Cavity in.Camera lens 502 passes through the centre bore of euphotic cover, protrudes from the front end face of euphotic cover 505.
In practical applications, in order to protect the light compensating lamp installed on camera lens front cover 503.Camera lens front cover 503 can be with
Euphotic cover 505 is installed.The shape of euphotic cover 505 can be adapted with the shape of camera lens front cover 503, thus preferably and camera lens
Front cover 503 is installed.
After euphotic cover 505 is mounted on camera lens front cover 503, cavity can be formed between camera lens front cover 503, so that
The components such as light compensating lamp can portion in this cavity, realize the protection to components such as light compensating lamps, improve the protection etc. of camera
Grade.
Meanwhile the euphotic cover 505 also has centre bore, and camera lens 502 is enabled to pass through the centre bore.So that euphotic cover
505 will not block the generation of camera lens 505, are conducive to camera lens 502 and shoot image information.
In conjunction with each embodiment above, in practical application, working as camera application provided by the embodiment of the utility model
When in varying environment.Light source 201 and euphotic cover 505 can have the characteristic or structure being adapted with shooting environmental.
Specifically, when camera provided by the embodiment of the utility model is applied to dark surrounds, e.g., at garage or night
Between when using.In order to improve light filling effect, while shooting area is not impacted.Light source 201 in light compensating lamp can be red
Outer LED light.Infrared LED lamp can produce infrared ray, while realizing to shooting area light filling, will not generate visible light, from
Without being impacted to shooting area.
Correspondingly, euphotic cover 505 is the infrared light transmission that infrared light can only be made to pass through when light source 201 is infrared LED lamp
Lid.Euphotic cover 505 is infrared light transmission lid.The infrared ray that infrared LED lamp can be made to be issued completely penetrates the euphotic cover
505.To realize the light filling to shooting area.
In another implementation of the utility model, when light source 201 is common LED light, euphotic cover 505 then may be used
Think the euphotic cover for allowing any light to pass through, such as can be resin, the euphotic cover of the materials such as industrial plastic.
In conjunction with each embodiment above, optionally, in camera provided by the embodiment of the utility model, can also wrap
It includes: lens protective cover 506；
Lens protective cover 506 is connect with camera lens front cover 503, and the partial lens for protruding from 503 end face of camera lens front cover are arranged
In in the cavity of lens protective cover 506.
Camera lens 502 is more accurate optical component, if be directly exposed in external environment, it is easy to be destroyed.
So as shown in figure 8, being also equipped with lens protective cover 506 on camera lens front cover 503.Lens protective cover 506 can be
The adaptable shell structure with the structure of camera lens 502.The modes such as it can be connected through a screw thread, be bonded to connect with camera lens front cover 503.
The inside cavity in the lens protective cover 506 can be set in the partial lens that camera lens 502 protrudes from 503 end face of camera lens front cover, real
The protection to camera lens 502 is showed.
Further, since camera provided by the utility model may use in environment outdoors, so, in order to
Dust and water protection is realized to camera lens 502.Camera provided by the utility model can also include sealing ring 507.
Sealing ring 507 is mounted on, the junction between lens protective cover 506 and camera lens front cover 503, for sealing camera lens
Gap between 502 protective covers and camera lens front cover 503.
Sealing ring 507 can be the sealing elements such as rubber ring.As shown in figure 8, sealing ring 507 is installed on lens protective cover 506
Make with the junction between camera lens front cover 503 so that the gap between lens protective cover 506 and camera lens front cover 503 is sealed
Obtaining dust and rainwater etc. cannot be introduced into inside lens protective cover 506.
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 principle of the present invention, are all contained in this reality
With in novel protection scope.
Claims (13)
1. a kind of light compensating lamp, which is characterized in that the light compensating lamp includes: light source and lens；
The lens are convex lens structures, and the curved surface of the convex lens structures is first surface；
The bottom of the lens has curved surface cavity, and the curved surface cavity forms the second curved surface in the lens interior；
The light source is arranged in the curved surface inside cavity；
The light that the light source issues passes through the refraction of second curved surface and the first surface, forms the light of preset direction
Road.
2. light compensating lamp according to claim 1, which is characterized in that pass through second curved surface vertex in the curved surface cavity
And perpendicular to the axis of horizontal plane be first axle；
Pass through the first surface vertex in the lens and is second axis perpendicular to the axis of horizontal plane；
There is pre-determined distance between the first axle and the second axis, make the curved surface cavity and the lens eccentricity cloth
It sets.
3. light compensating lamp according to claim 1, which is characterized in that the curved surface cavity is the semicircle chamber of bottom opening
The curvature portion of body, the semicircle cavity forms second curved surface in the lens interior；
The opening of the curved surface cavity, is arranged on the bottom surface of the lens.
4. light compensating lamp according to claim 3, which is characterized in that the bottom of the lens is cascaded surface；
The first end face of the cascaded surface is horizontal plane, and the opening of the curved surface cavity is arranged in the first end face；
The second end face of the cascaded surface is parallel with the first end face, and close to the first surface；
The first end face is connected with the second end face by third curved surface；
The third curved surface forms concave curved surface in the bottom of the lens.
5. light compensating lamp according to claim 1, which is characterized in that the edge of the lens has protruding portion；
The protruding portion is provided with mounting hole.
6. light compensating lamp according to claim 5, which is characterized in that the bottom of the protruding portion and the lens passes through the 4th
Curved surface is connected；
4th curved surface forms concave curved surface in the bottom of the lens.
7. light compensating lamp according to any one of claim 1 to 6, which is characterized in that the first surface and described second
Curved surface is iteration curved surface.
8. light compensating lamp according to any one of claim 1 to 6, which is characterized in that the light source is Light-emitting diode LED
Light source.
9. a kind of camera, which is characterized in that the camera includes such as light compensating lamp described in any item of the claim 1 to 8.
10. camera according to claim 9, which is characterized in that the camera further include: before fuselage, camera lens, camera lens
Lid and lamp plate；
The camera lens is mounted on the front end face of the fuselage；
The camera lens front cover is connect with the front end face of the fuselage, and the camera lens passes through the centre bore on the camera lens front cover, is dashed forward
For the end face of the camera lens front cover；
The lamp plate is fixedly connected with the camera lens front cover, and the light source in the light compensating lamp is mounted on the lamp plate；
Lens in the light compensating lamp are fixedly connected with the camera lens front cover, and the light source installed on the lamp plate is set
It is placed in the curved surface cavity of the lens.
11. camera according to claim 10, which is characterized in that the camera further include: euphotic cover；
The euphotic cover is connected with the camera lens front cover, and the light compensating lamp is set to the euphotic cover and the camera lens front cover
In the cavity of formation；
The camera lens passes through the centre bore of the euphotic cover, protrudes from the front end face of the euphotic cover.
12. camera according to claim 11, which is characterized in that the light source in the light compensating lamp is infrared LED lamp；
The euphotic cover is the infrared light transmission lid that infrared light can only be made to pass through.
13. camera according to claim 10, which is characterized in that the camera further include: lens protective cover；
The lens protective cover is connect with the camera lens front cover, and the partial lens for protruding from camera lens front cover end face are set
It is placed in the cavity of the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192962.1U CN208399869U (en) | 2018-07-26 | 2018-07-26 | A kind of light compensating lamp and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192962.1U CN208399869U (en) | 2018-07-26 | 2018-07-26 | A kind of light compensating lamp and camera |
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| Publication Number | Publication Date |
|---|---|
| CN208399869U true CN208399869U (en) | 2019-01-18 |
Family
ID=65129371
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821192962.1U Active CN208399869U (en) | 2018-07-26 | 2018-07-26 | A kind of light compensating lamp and camera |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913333A (en) * | 2019-05-09 | 2020-11-10 | 群光电子股份有限公司 | Camera and dimming module |
| CN112346191A (en) * | 2019-08-09 | 2021-02-09 | 杭州海康威视数字技术股份有限公司 | Lens and camera |
| US11095826B2 (en) | 2019-05-08 | 2021-08-17 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
| US11112680B2 (en) | 2019-05-08 | 2021-09-07 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
| WO2022217620A1 (en) * | 2021-04-17 | 2022-10-20 | 华为技术有限公司 | Camera, driver monitoring system, and vehicle |
| US11550204B2 (en) | 2019-05-08 | 2023-01-10 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
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2018
- 2018-07-26 CN CN201821192962.1U patent/CN208399869U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11095826B2 (en) | 2019-05-08 | 2021-08-17 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
| US11112680B2 (en) | 2019-05-08 | 2021-09-07 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
| US11550204B2 (en) | 2019-05-08 | 2023-01-10 | Chicony Electronics Co., Ltd. | Camera and light adjustment module |
| CN111913333A (en) * | 2019-05-09 | 2020-11-10 | 群光电子股份有限公司 | Camera and dimming module |
| CN112346191A (en) * | 2019-08-09 | 2021-02-09 | 杭州海康威视数字技术股份有限公司 | Lens and camera |
| WO2022217620A1 (en) * | 2021-04-17 | 2022-10-20 | 华为技术有限公司 | Camera, driver monitoring system, and vehicle |
| CN115500088A (en) * | 2021-04-17 | 2022-12-20 | 华为技术有限公司 | Camera, driver monitoring system and vehicle |
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