CN210348161U

CN210348161U - Light supplement lamp

Info

Publication number: CN210348161U
Application number: CN201921474371.8U
Authority: CN
Inventors: 殷欢; 范沣曦
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-04-17
Anticipated expiration: 2029-09-05

Abstract

The embodiment of the application discloses light filling lamp relates to intelligent transportation supervisory equipment field, can slow down the ageing phenomena such as light filter deformation appear in the use to a certain extent. The light supplement lamp includes: the light source is arranged at the bottom of the reflection cup, the light filter is arranged on the emergent path of the light source, and a first heat insulation sheet is arranged between the light filter and the light source and used for enabling light rays emitted by the light source to be distributed on the light filter in a dispersing mode. The light supplementing device is suitable for light supplementing devices with the optical filters, and is particularly suitable for image shooting of intelligent traffic monitoring devices.

Description

Light supplement lamp

Technical Field

The utility model relates to an intelligent transportation supervisory equipment field especially relates to a light filling lamp.

Background

The light filling lamp is used as a lamp for performing light compensation on some equipment or plants lack of illuminance, and in the technical field of intelligent transportation, if a monitoring and recording system of an intelligent bayonet of a road vehicle is not enough in illuminance of ambient light at night, information such as clear license plate numbers and vehicle colors and facial features of drivers and passengers in front rows are required to be acquired, in order to ensure the effect of taking a snapshot, the monitoring camera needs to be provided with the light filling lamp for supplementing light for a snapshot frame.

At present, in the field of intelligent traffic gate monitoring equipment, in order to solve the problem of dazzling of white light flashing at night, a light supplementing lamp for supplementing light is usually matched with a switchable light filter to realize switching of white light and infrared flashing functions.

The inventor finds out in the process of realizing the invention: when the light supplement lamp is actually used, although the duration of light source flashing is only hundreds of microseconds, the instantaneous power can reach tens of thousands of watts. When the product is used, when the continuous flicker frequency of the light source reaches a preset level, the surface of the optical filter can generate high temperature after working for a certain time, and the aging phenomena such as deformation and the like of the optical filter in the use process are accelerated to a certain extent, so that the night light supplementing effect of the light supplementing lamp is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application provides a light supplement lamp, which can slow down the aging phenomena such as deformation of an optical filter in the using process to a certain extent.

In order to achieve the purpose, the technical scheme is as follows:

the embodiment of the application provides a light filling lamp, includes: the light source is arranged at the bottom of the reflection cup, the light filter is arranged on the emergent path of the light source, and a first heat insulation sheet is arranged between the light filter and the light source and used for enabling light rays emitted by the light source to be distributed on the light filter in a dispersed mode.

Optionally, the first heat insulation sheet and the optical filter are coaxially disposed with the light source.

Optionally, a first surface of the first heat insulation sheet facing the light source direction is a reflection surface, an inner wall of the reflection cup is a reflection surface, the reflection cup reflects the light source reflected by the first heat insulation sheet, and a reflection direction of the reflection cup is facing a cup opening of the reflection cup.

Optionally, the first surface of the first heat insulation sheet is a convex surface convex towards the light source direction.

Optionally, the convex surface is a free-form surface.

Optionally, the first surface of the first heat shield sheet is electroplated with a polishing layer; or,

the first surface of the first heat insulation sheet is provided with bulges.

Optionally, the first heat shield is mounted on the optical filter or on an inner wall of the reflective cup.

Optionally, a second heat insulation sheet is further disposed on one side of the first heat insulation sheet facing the optical filter, and the second heat insulation sheet is disposed in contact with the optical filter or disposed in a non-contact manner.

Optionally, a gap is reserved between the first heat insulation sheet and the second heat insulation sheet; or,

the first heat insulation sheet is buckled with the second heat insulation sheet, and an air layer is arranged between the first heat insulation sheet and the second heat insulation sheet.

Optionally, the optical filter is an infrared band-pass filter, and the light source includes a gas discharge lamp.

For the light direct irradiation that prior art sent leads to the light filter to be heated and warp easily on the light filter surface, the light filling lamp that this application embodiment provided, because set up first heat insulating sheet between light source and the light filter, first heat insulating sheet can block the light direct irradiation that the light source sent is in on the light filter, promptly first heat insulating sheet will the light source is followed at least partial light that the exit path of light source sent blocks the back reflection and is in on the inner wall of reflection of light cup, the rethread dispersion distributes on the light filter after the inner wall reflection of light cup to can alleviate or avoid because of the deformation phenomenon appears in the light filter that high temperature leads to, can slow down the ageing phenomena such as deformation in the use of light filter to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a fill light according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of the first thermal shield of FIG. 1 or FIG. 2;

FIG. 4 is a schematic structural view of an embodiment of the second thermal shield of FIG. 1 or FIG. 2;

FIG. 5 is a schematic structural diagram of an embodiment of a filter according to the present application;

FIG. 6 is a schematic structural diagram of another embodiment of a filter according to the present application;

FIG. 7 is a schematic view of a structural light path of a fill-in light according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of an application scenario of a fill light according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of an application scenario of a fill light according to another embodiment of the present application;

fig. 10 is a schematic view of an application scenario of a fill light according to another embodiment of the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

To assist in understanding the present application, a brief introduction to the related art follows:

at present, in the field of intelligent traffic gate monitoring equipment, in order to solve the problem of dazzling of white light flash at night, one solution is to adopt a monitoring camera with an image fusion processing technology, recognize the environmental color by using weak visible light acceptable to human eyes, obtain the facial feature details of cab personnel by using high-brightness infrared flash, and fuse two groups of different types of exposure pictures to obtain a color fusion picture without obvious color cast. The camera with the fusion technology needs to use white light flash in the daytime and needs to use infrared flash at night, so that the light supplement lamp with the gas discharge lamp tube for supplementing light realizes the switching of the white light and the infrared flash functions by matching and using the switchable infrared filter.

In the above solution, the optical filter used in cooperation with the fill light is an infrared filter. Of course, in other scenes or fields where the fill light is applied, the type of the optical filter may not be the infrared filter, but may be other types of optical filters. In practical application, the filter can be selected according to the required light.

The inventor of the application finds through tests that: when the light supplement lamp equipment is actually applied, the duration of the flash of the gas discharge lamp tube serving as a light source of the light supplement lamp is only hundreds of microseconds, and the instantaneous power can reach the level of tens of thousands of watts. When the product is used, when the continuous flicker frequency of the light source reaches a preset level, for example, 1S/time, the light filter works for a certain time, for example, 30 minutes, the surface of the light filter generates high temperature through testing, and after aging testing, the phenomenon of deformation of the light filter is found, so that the light supplement effect at night is influenced.

One solution to this problem is to change the material of the optical filter, and use a high temperature resistant material to improve the temperature resistance of the optical filter, so as to reduce or avoid the deformation caused by high temperature. However, the requirements of the monitoring camera on the light-emitting spectral properties are strict, and after materials are generally changed, the internal properties of the optical filter are changed, and the spectral properties of the light supplementing device are also correspondingly changed, so that the white balance of the image of the monitoring camera is correspondingly influenced, color cast is easily generated, and the effect of capturing the image is influenced.

In addition, in practical application, it is difficult to improve the heat-resistant property without changing the light-emitting spectrum property from the material, and the cost of the optical filter is very high, and the optical filter does not have practical product application value.

The technical scheme of this application starts from the structure of light filling lamp, on the basis that does not change the filter material nature, can solve the light filling lamp in the course of the work, the filter surface produces high temperature easily and leads to the filter to warp ageing technical problem.

Referring to fig. 1 to 10, an embodiment of the present application provides a light supplement lamp, which is suitable for light supplement application of a light supplement device with an optical filter, and is particularly suitable for image shooting of an intelligent traffic monitoring device. The light supplement lamp includes: the light source 1 is arranged at the bottom of the reflecting cup 2, an optical filter 4 is arranged on an emergent path of the light source, a first heat insulation sheet 5 is arranged between the optical filter 4 and the light source 1, and the first heat insulation sheet 5 is used for enabling light rays emitted by the light source 1 to be distributed on the optical filter 4 in a dispersing manner.

The light source 1 may be directly disposed at the bottom of the reflective cup 2, for example, bonded at the bottom of the reflective cup by a high temperature resistant glue, or fixed at the bottom of the reflective cup by a metal fixing member. In one embodiment, a base 3 may be provided at the bottom of the reflective cup 2, and the light source 1 is mounted on the base 3; specifically, the light source 1 may be mounted on the base 3 by means of plugging, welding, screwing, or the like.

In the present embodiment, the light source 1 is a gas discharge lamp, such as a xenon lamp (High intensity discharge lamp), which is a High pressure gas discharge lamp filled with an inert gas mixture including xenon gas and without a filament of a halogen lamp (halogen lamp), and may be referred to as a metal halide lamp or a xenon lamp. The embodiment of the present invention is not limited thereto, and in another embodiment, the light source 1 may also be an led (light emitting diode) lamp or a halogen lamp (halogen lamp); the principle of the halogen lamp, also called tungsten halogen bulb, is that halogen gas such as iodine or bromine is injected into the bulb, the sublimed tungsten filament and the halogen perform chemical action at high temperature, and the cooled tungsten is re-solidified on the tungsten filament to form a balanced cycle, thereby preventing the tungsten filament from being broken prematurely.

And the reflecting cup 2 is used for reflecting and condensing the light emitted by the light source 1 and is in a cup shape. The material can be metal or glass. The metal reflective cup is manufactured by stamping, polishing and other processes on a metal material; the glass reflective cup can be demoulded at one time.

The optical filter 4 is an infrared band-pass filter and is used for transmitting infrared rays. In this embodiment, the optical filter 4 is an optical filter with a rotary structure, specifically, referring to fig. 1, fig. 2 and fig. 5, the optical filter 4 includes a fixed optical filter 41a and a movable optical filter 42a, the fixed optical filter 41a is in a disc shape, a channel 43a for passing light is formed on the fixed optical filter 41a, the fixed optical filter 41a is installed at a cup opening of the reflective cup 2, and the movable optical filter 42a is a plastic sheet or a glass sheet for passing infrared light; a motor 44a is installed on a first surface of the fixed filter 41a far from the light source 1, the movable filter 42a is installed on a second surface side of the fixed filter 41a opposite to the first surface, the movable filter 42a is fixedly connected with an output shaft of the motor 44a, the output shaft of the motor 44a drives the movable filter 42a to rotate when rotating, when the movable filter 42a rotates to a position for shielding a channel 43a on the fixed filter 41a, only infrared light is allowed to pass through the channel 43a through the filtering effect of the movable filter 42a, when the movable filter 42a rotates to a position for opening the channel 43a on the fixed filter 41a, white light can directly pass through the channel 43a, so that the output shaft of the motor 44a drives the movable filter 42a to switch between different positions, switching between functions by white light or by infrared light may be accomplished.

The motor 44a is disposed in a casing 45a made of a band-pass filter material (such as plastic or glass with a specific color), and since the casing 45a is made of the band-pass filter material, the shielding effect of the motor structure itself on infrared light passing through the filter can be reduced.

A channel or window 46a for emitting white light may be disposed on the edge of the fixed filter 41a, referring to fig. 5, for example, the channel or window 46a is a plurality of notches arranged around the edge of the fixed filter 41a, and in another embodiment, the channel or window 46a may also be a through hole. The movable filter 42a, no matter where it is turned, does not block the channel or window 46 a.

The color image is composed of primary colors of red, green and blue, and can be obtained by superposition or mixing of the three primary colors, white light is also called visible light, the spectrum of the white light contains the light of the three primary colors, and how to obtain the color image at night needs the participation of the white light; clear images of human faces are captured through the window glass at night, and infrared light needs to participate; in the embodiment, the edge of the fixed filter 41a of the filter 4 is provided with the channel or the window 46a for emitting the white light source, so that a high-definition color snapshot image can be obtained by fusing high-brightness infrared flash light and weak visible light acceptable to human eyes at night; the vehicle-mounted traffic snapshot system can meet the image requirements of actual traffic snapshot and can also eliminate the safety problem that a driver is dazzled instantly when the vehicle-mounted traffic snapshot system flashes.

In one embodiment, the motor 44a may drive the rotation of the movable filter 42a according to a control signal of a monitoring camera or related device.

In another embodiment, the optical filter 4 is an optical filter with a louver structure, as shown in fig. 6, the optical filter 4 includes a fixed optical filter 41b and a movable optical filter 42b, the fixed optical filter 41b is in a disc shape, a channel 43b for passing light is formed on the fixed optical filter 41b, the fixed optical filter 41b is installed at a cup opening of the reflective cup 2, and the movable optical filter 42b is a plastic sheet or a glass sheet for passing infrared light; a motor 44b is mounted on a first surface of the fixed filter 41b remote from the light source 1, the movable filter 42b is provided at the channel 43b on the fixed filter 41b, the control end of the movable filter 42b is connected with the output shaft of the motor 44b, the output shaft of the motor 44b drives the movable filter 42b to rotate when rotating, when the movable filter 42b is rotated to a position where the passage 43b is blocked, by the filtering action of the movable filter 42b, only infrared rays are allowed to pass through said channel 43b, when the movable filter 42b is rotated to place the channel 43b in an open position, white light can pass directly through the channel 43b, and thus, the output shaft of the motor 44b drives the movable filter 42b to switch between different positions, so that the function of switching between white light and infrared light can be achieved.

In order to obtain a high-definition color snapshot image by fusing a high-brightness infrared flash and a weak visible light acceptable to human eyes at night so as to meet the image requirement of actual traffic snapshot and to eliminate the safety problem of instantaneous glare of the driver during snapshot flash, in an embodiment, a channel or window 46b for emitting white light may be disposed on the edge of the fixed filter 41b, and referring to fig. 6, the channel or window 46b is a plurality of through holes annularly disposed inside the edge of the fixed filter 41b as an example. The movable filter 42b does not block the channel or window 46b, whichever position it is turned.

In one embodiment, the motor 44b can drive the movable filter 42b to rotate according to a control signal of a monitoring camera or related equipment.

The outer contour of the fixed filter shown in fig. 5 and 6 is not limited to a circular disk shape, and may be a square shape, a trapezoidal shape, or the like.

The first heat insulating sheet 5 is made of a high temperature resistant material, which is resistant to at least the heat generated by the light emitted from the light source without causing thermal deformation. For example, the first heat insulating sheet 5 may be made of a material such as a high-temperature-resistant metal or ceramic, and when a metal material is used, the first heat insulating sheet may be made of any one of silver, copper, aluminum, and steel, or may be made of an alloy material including any one of the above-mentioned heat insulating materials. The first heat insulating sheet 5 is preferably an aluminum heat insulating sheet in view of heat insulating effect and cost.

When the first heat insulating sheet 5 is made of a metal material, the first heat insulating sheet can be formed in one step by stamping. The shape of the first heat insulation sheet 5 may be a polygon such as a circle, a quadrangle, a pentagon, etc., and the thickness of the first heat insulation sheet 5 may be 1mm to 5mm, such as 2mm or 3mm, etc.

The embodiment of the application provides a light filling lamp, because set up first heat insulating sheet between light source and the light filter, first heat insulating sheet can block the light direct irradiation that the light source sent is in on the light filter, promptly first heat insulating sheet will the light source is followed reflection after at least partial light that the exit path of light source sent blocks is in on the inner wall of reflection of light cup, the rethread dispersion distributes behind the inner wall reflection of light cup on the light filter to can alleviate or avoid appearing deformation phenomenon because of the light filter that the high temperature leads to, can slow down the light filter to a certain extent and appear ageing phenomena such as deformation in the use.

Further, the structure of the light-compensating optical filter is improved, the property of the light-compensating optical filter is not changed, the property of the light-compensating optical spectrum and the light-emitting brightness can be guaranteed, and high cost caused by changing the property of the light-compensating optical filter is avoided.

The first heat insulation sheet 5 also has a heat dissipation function, can absorb heat energy generated by a central light spot emitted by the light source and dissipate the heat energy to the air, and therefore the phenomenon of deformation of the optical filter caused by high temperature can be further reduced or avoided. When the first heat insulating sheet 5 is made of a metal material, its heat radiating function is better.

In addition, practical tests show that the optical filter is firstly deformed from the center and the deformation amount is the largest because the light intensity at the central area (the center of the light spot) of the light emitted by the light source 1 is the highest and the temperature at the center of the optical filter is the highest. Referring to fig. 1 and 7, in an embodiment of the present application, the first heat shield 5 and the filter 4 are disposed coaxially with the light source 1. Therefore, light in the central area of the light source can be more accurately prevented from directly irradiating the optical filter, the temperature at the center of the optical filter is reduced, further, the first heat insulation sheet 5 reflects the light in the central area of the light source after blocking the light on the inner wall of the reflecting cup, and then the light is dispersed and distributed on the optical filter after being reflected by the inner wall of the reflecting cup, so that the temperature difference between the center and the edge of the optical filter is reduced, the temperature of the whole structure is more average, the heat acting on the center of the optical filter 4 is effectively reduced, and the deformation caused by overhigh temperature at the center of the optical filter 4 is reduced or avoided.

Furthermore, in this embodiment, through locating light source 1 in the bottom of a cup department of anti-light cup 2, first heat insulating sheet can be with the light transmission that light source 1 sent to anti-light cup inner wall, anti-light cup inner wall is again with light reflection, and the dispersion distributes and is emergent on the filter, and through multiple reflection focus outgoing like this, light-emitting luminance loss is little, does not reduce light energy hardly, guarantees equipment light filling spectral property and light-emitting luminance.

In an embodiment, the movable filter and the fixed filter of the optical filter 4 are made of Polycarbonate (PC) material that can transmit infrared rays, and aging test experiments show that the temperature of the PC material of the optical filter can be about 130 ℃, and the temperature resistance of common PC material in practical application is recommended to be lower than 100 ℃. In the embodiment, the first heat insulation sheet is arranged between the optical filter and the light source 1, and the first heat insulation sheet, the optical filter and the light source are coaxially arranged, so that the central temperature of the optical filter made of a PC material can be reduced to be lower than 100 ℃, and the problem of overheating deformation is effectively solved.

In order to enhance the reflection effect of the first heat insulation sheet 5 on the light, in one embodiment, a first surface of the first heat insulation sheet 5 facing the light source is a reflection surface for reflecting the light emitted from the light source. The inner wall of the light reflecting cup directly reflects part of light emitted by the light source and reflects the light reflected by the first heat insulation sheet 5 again, and the reflecting direction of the inner wall of the light reflecting cup to the light is towards the cup opening of the light reflecting cup. Like this, through with first heat shield 5 orientation the first surface 51 of 1 direction of light source sets up to the plane of reflection, can improve first heat shield 5 to the reflection effect of the light at the facula center of light source, like this, can reflect the light of the central zone of light source to the inner wall of anti-light cup effectively through the plane of reflection of first heat shield 5, through the secondary reflection of the inner wall of anti-light cup, can distribute the light dispersion that the light source sent on the filter outgoing, can reduce light-emitting luminance loss, keep sufficient light energy to guarantee equipment light filling spectral property and light-emitting luminance.

Specifically, the first surface 51 of the first heat insulating sheet 5 is a convex surface protruding toward the light source direction, and the convex surface is a reflective surface. Therefore, through the convex surface, light in the central area of the light source can be divergently reflected to the inner wall of the light reflecting cup, and then is scattered to the optical filter for emitting through multiple reflections on the inner wall of the light reflecting cup, so that the light can be scattered to the optical filter and focused to emit through the divergent reflection of the convex surface facing the light and the multiple reflections on the inner wall of the light reflecting cup, the light brightness loss can be further reduced, and enough light energy can be kept to ensure the light supplementing spectral property and the light brightness of the equipment.

In one embodiment, the convex surface is a free-form surface. The free-form surface refers to a curved surface which has the surface shape which cannot be continuously processed and has the arbitrary characteristics of the traditional processing and forming; the user can dynamically change any part on the free-form curved surface entity to realize more accurate visual control on the curved surface. The application of free-form surface in the design of optical system can realize accurate control and utilization to the light in every region, and this embodiment is through setting up the bellying into free-form surface, not only can improve the utilization ratio of light energy, still provides very big design degree of freedom.

Further, the first surface of the first heat insulating sheet 5 may be plated with a polishing layer. Thus, the first surface 51 of the first heat insulation sheet 5 has high reflectivity, light rays in the central area of the light source can be reflected back to the reflecting cup at a certain angle, and the light rays are reflected by the reflecting cup for several times to achieve the gathering effect, so that the light energy loss is hardly reduced.

In another embodiment, the first surface 51 of the first heat insulation sheet 5 is provided with a plurality of protrusions. Therefore, light can be scattered better, and the light is scattered and distributed on the optical filter after being reflected by the inner wall of the reflecting cup.

The first heat insulating sheet 5 is attached to the filter 4, and in one example, a mounting seat may be provided on the movable filter 42a, and the first heat insulating sheet 5 may be attached to the mounting seat by a screw, a clip, or the like. In another example, the first heat insulating sheet 5 may be mounted to the fixed filter 41a by a bracket. Correspondingly to the fixed filter 41a, the first heat shield 5 is mounted on the movable filter 42a, so that the occupied space is smaller, the unnecessary shielding of the channel 23a of the fixed filter 41a can be avoided, and the transmittance of the light can be improved. The first heat insulation sheet 5 can also be arranged on the inner wall of the reflection cup through a bracket.

In one embodiment, there is a gap between the first thermal barrier 5 and the filter. This prevents the first heat insulating sheet 5 from directly transferring the heat absorbed by itself to the optical filter 4 when the light source is irradiated onto the first heat insulating sheet 5.

In order to further improve the heat insulation performance, a second heat insulation sheet 6 is further arranged on one side of the first heat insulation sheet 5 facing the optical filter 4, and the second heat insulation sheet is arranged in contact with or not in contact with the optical filter; in one example, the second heat insulating sheet 6 is attached to the filter 4, and specifically, an attachment seat may be provided on the movable filter 42a, the second heat insulating sheet 6 may be attached to the attachment seat by a screw or a clip, and the first heat insulating sheet 5 may be attached to the second heat insulating sheet 6. The first heat insulating sheet 5 can be mounted on the second heat insulating sheet 6 by means of screws, buckles, bonding or the like so as to reduce occupied space. Alternatively, the first heat insulating sheet 5 and the second heat insulating sheet 6 may be directly connected to the movable filter 42a by screws, snaps, or the like.

In another example, the second heat shield 6 may be attached to the fixed filter 41a by a bracket, and then the first heat shield 5 may be attached to the second heat shield 6. Correspondingly to the fixed filter 41a, the first heat shield 5 is mounted on the movable filter 42a, so that the occupied space is smaller, the unnecessary shielding of the channel 23a of the fixed filter 41a can be avoided, and the transmittance of the light can be improved. The first heat insulation sheet 5 and the second heat insulation sheet 6 can also be arranged on the inner wall of the reflection cup through a bracket.

The second heat insulation sheet 6 may be made of a metal material or a ceramic material. In one example, the second heat insulation sheet 6 is a disc-shaped structure made of a common aluminum sheet, and disperses light emitted by the light source on the optical filter in comparison with the first heat insulation sheet 5 to realize the principle of temperature reduction, the second heat insulation sheet 6 utilizes the heat dissipation characteristic of the second heat insulation sheet 6, and after the first heat insulation sheet 5 is cooled, the temperature is further reduced by the second heat insulation 4 sheets, so that the cost is low and the heat insulation is fast, and thus, the temperature generated when the light emitted by the light source 1 acts on the optical filter 4 is lower.

In one embodiment, a gap is reserved between the first heat insulation sheet 5 and the second heat insulation sheet 6. In another embodiment, the first heat insulating sheet 5 and the second heat insulating sheet 6 are engaged with each other, and an air layer is provided between the first heat insulating sheet 5 and the second heat insulating sheet 6. A gap is reserved between the first heat insulation sheet 5 and the second heat insulation sheet 6 or an air layer is arranged between the first heat insulation sheet 5 and the second heat insulation sheet 6, so that the conduction of heat absorbed by the first heat insulation sheet 5 to the second heat insulation sheet 6 can be reduced, a better heat insulation effect can be obtained, the heat finally acting on the optical filter is reduced, and the occurrence of self deformation of the optical filter is effectively reduced or avoided.

The thicknesses of the first heat-insulating sheet 5 and the second heat-insulating sheet 6 can be set according to the diameter of the optical filter 4 of a specific product, so that the optimal heat-insulating effect is ensured.

The specific technical scheme of the fill-in light lamp provided by the application is provided by the inventor based on a new technical problem found in practice, and the technical problem is not fed back in the industry at present and has originality. Therefore, the technical scheme for solving the problem is pioneered.

The embodiment of the application can be suitable for a light supplement lamp of which the material of the front panel of the lamp holder is plastic and which is matched with an infrared optical filter, and also suitable for a light supplement lamp device of which the light source is an LED lamp tube matched with the optical filter.

The technical scheme that this application provided through set up the heat insulating disc between light source and light filter, on the basis that does not change the light filter material, improves light filling lamp self structure, has solved light filling lamp working process and has produced the high temperature and accelerate the ageing problem such as deformation appear in the light filter on the light filter surface, has practical application meaning to promoting light filter life and controlgear cost.

Further, this application is when solving the ageing problem such as deformation appear in the light filter surface high temperature acceleration light filter that produces in the light filling lamp working process, match reflection of light cup and corresponding thermal-insulated structure, through the heat insulating sheet with the central zone's of light source light reflection to the inner wall of reflection of light cup, through the secondary reflection of the inner wall of reflection of light cup, can distribute the light dispersion that the light source sent on the light filter outgoing, can reduce the loss of light-emitting brightness, keep sufficient light energy, in order to guarantee equipment light filling spectral property and light-emitting brightness, red exposure and color cast have been reduced, the image effect of snapshotting has been guaranteed.

Further, when the intelligent traffic light source is applied to the technical field of specific intelligent traffic, the intelligent traffic bayonet is matched with a monitoring camera with a fusion processing technology, high-brightness infrared flashing light and weak visible light acceptable for human eyes are fused at night to obtain a high-definition color snapshot picture, the problem of white light flashing light pollution at night in the industry is solved, and the safety problem that drivers dazzle instantly is solved.

It should be noted that the terms "upper", "lower", and the like, herein indicate orientations or positional relationships and are used for convenience in describing the present application and for simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element. As will be appreciated by one of ordinary skill in the art, the situation may be specified.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fill light, comprising: the light source is arranged at the bottom of the reflection cup, the light filter is arranged on the emergent path of the light source, and a first heat insulation sheet is arranged between the light filter and the light source and used for enabling light rays emitted by the light source to be distributed on the light filter in a dispersing mode.

2. A fill-in light lamp as claimed in claim 1, wherein the first heat shield and the filter are disposed coaxially with the light source.

3. A light supplement lamp as claimed in claim 1 or 2, wherein a first surface of the first heat shield facing the light source is a reflective surface, an inner wall of the reflective cup is a reflective surface, the reflective cup reflects the light source reflected by the first heat shield, and a reflective direction of the reflective cup is facing a rim of the reflective cup.

4. A fill-in light lamp according to claim 3, wherein the first surface of the first heat shield is a convex surface protruding towards the light source.

5. A fill-in light lamp as claimed in claim 4, wherein the convex surface is a free-form surface.

6. The fill light of claim 3, wherein the first surface of the first heat shield is plated with a polishing layer; or,

the first surface of the first heat insulation sheet is provided with bulges.

7. A fill light as recited in claim 1, wherein the first thermal shield is mounted on the filter or on an inner wall of the reflector cup.

8. A fill-in light lamp according to claim 1, wherein a second heat shield is further disposed on a side of the first heat shield facing the optical filter, and the second heat shield is disposed in contact with or in non-contact with the optical filter.

9. The fill-in light of claim 8, wherein a gap is reserved between the first heat shield and the second heat shield; or,

10. A fill-in light lamp as claimed in claim 1, wherein the filter is an infrared band-pass filter, and the light source comprises a gas discharge lamp.