CN115220288A

CN115220288A - Light supplementing device and security and protection equipment

Info

Publication number: CN115220288A
Application number: CN202210887618.9A
Authority: CN
Inventors: 唐海龙
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-10-21
Anticipated expiration: 2042-07-26
Also published as: CN115220288B

Abstract

The application discloses light filling device and security protection equipment, light filling device include light source subassembly and reflection piece, the light source subassembly is the diffuse light source, the reflection piece with the light source subassembly cooperation, the reflection piece includes a plurality of sub-reflection portions, and is a plurality of sub-reflection portion interconnect, each sub-reflection portion all has sub-plane of reflection, each sub-plane of reflection is the diffusion curved surface, and is a plurality of sub-plane of reflection all configures to the reflection the light that the light source subassembly sent, and makes the reflected light line propagate to the target area. The light supplementing device can solve the problems that a light source light-emitting surface of the light supplementing device in the existing security and protection equipment is small, the light emitted by the light source is easy to directly irradiate human eyes to cause a dazzling phenomenon, and the user experience is poor.

Description

Light supplementing device and security and protection equipment

Technical Field

The application belongs to the technical field of security and protection equipment, and particularly relates to a light supplementing device and security and protection equipment.

Background

In the working process of the security equipment, in order to improve the shooting effect of the security equipment in a working scene at night or under poor illumination conditions, a light supplementing device can be generally configured for the security equipment. However, in the current light supplement device, the light source of the light supplement device generally directly irradiates on the target area, and then if the user unintentionally expects to the security equipment, because the light emitting surface of the light source is relatively small, the light emitted by the light source is easily incident directly on human eyes to cause a glare phenomenon, and the user experience is poor.

Disclosure of Invention

The embodiment of the application aims at providing a light filling device and security protection equipment to solve among the present security protection equipment light source play plain noodles of light filling device less, dazzle the light phenomenon because of the light that the light source jetted out shines eyes directly easily, user experience is relatively poor.

In a first aspect, an embodiment of the present application discloses a light filling device, which includes a light source assembly and a reflector, the light source assembly is a diffuse light source, the reflector cooperates with the light source assembly, the reflector includes a plurality of sub-reflectors, and is a plurality of sub-reflectors interconnect, each sub-reflector all has a sub-reflector, each sub-reflector is a diffusion curved surface, and is a plurality of sub-reflectors all configure to reflect the light that the light source assembly sent, and make the reflected light ray propagate to the target area.

In a second aspect, an embodiment of the present application discloses a security device, which includes a camera module and the above light supplement device, wherein the camera module is used for shooting a target area.

The embodiment of the application discloses light filling device, its light source subassembly and reflector cooperation to utilize the reflector to reflect the light that the light source subassembly sent to the target area. Wherein, the light source subassembly is the diffuse light source, and the respective sub-plane of reflection of a plurality of sub-reflection portions is the diffusion curved surface in the reflector, in the course of working of light filling device, a plurality of sub-planes of reflection all correspond with the light source subassembly, the light that sends for the light source subassembly provides the reflex action, and a plurality of sub-planes of reflection all configure into the reflection ray to the regional propagation of target, in order when guaranteeing that the target area has better illuminating effect, the light emitting area that can also make the user see when the light filling device is looked directly to the target area is great relatively, prevent that the user from dazzling the light phenomenon, promote user experience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a light supplement device disclosed in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another light supplement device disclosed in an embodiment of the present application;

fig. 3 is a schematic view of the fill light device shown in fig. 1 in another direction;

fig. 4 is a schematic cross-sectional view of the fill light device shown in fig. 1;

fig. 5 is an enlarged schematic view of a part of the structure of the light supplement device shown in fig. 1;

fig. 6 to 9 are schematic structural diagrams of a lens assembly in the light supplement device disclosed in the embodiment of the present application;

FIG. 10 is a schematic cross-sectional view of a lens assembly in a fill-in device according to an embodiment of the disclosure;

fig. 11 is a schematic view illustrating a reflection principle of any sub-reflecting surface in the light supplement device disclosed in the embodiment of the present application;

fig. 12 is a schematic diagram illustrating a cross section of a lens assembly in a fill-in device according to an embodiment of the disclosure in a coordinate system;

fig. 13 is a schematic view of an operating principle of a light supplement device disclosed in an embodiment of the present application

Fig. 14 is a schematic view illustrating another operation principle of the light supplement device disclosed in the embodiment of the present application;

fig. 15 is a schematic structural diagram of a light supplement device disclosed in an embodiment of the present application.

Description of the reference numerals:

100-a light-emitting body,

200-reflector, 210-sub-reflector, 211-sub-reflector, 212-first surface, 213-first line segment, 220-shade,

300-lens assembly, 310-reflecting lens, 320-refracting lens,

400-baffle.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

As shown in fig. 1 to 15, an embodiment of the present application discloses a light supplement device, which can be applied to security equipment to provide an auxiliary illumination function for a camera module in installation equipment, and of course, the light supplement device can also be applied to other equipment, which is not limited herein. The light supplement device disclosed in the embodiment of the present application includes a light source assembly and a reflector 200.

Wherein, the light source subassembly is the diffuse light source, and the device of reflector 200 for the ability that possesses the diffusion light emitting area to guarantee that the light source subassembly sent continues to propagate the illumination face that forms after through reflector 200 reflection and is greater than the light-emitting area of light source subassembly, and be greater than the area of arbitrary sub-plane of reflection 211 on reflector 200, guarantee that the user can see the relatively great plane of reflection of area when following reflector 200 unintentionally, and then reduce the luminance of the light that the user saw, promote user experience.

Certainly, in the light filling device disclosed in the embodiment of the present application, it needs to be ensured that the reflector 200 can be matched with the light source assembly to receive at least a part of the light emitted by the light source assembly, and reflect the received light, so as to change the propagation direction of the light. Specifically, reflection piece 200 can be semi-circular structure, and can make reflection piece 200 back-off set up on the light source subassembly, through the bottom that makes light source subassembly orientation reflection piece 200, the light that can make the light source subassembly send can shine to the plane of reflection piece 200 on, and the plane of reflection can provide the reflex action for incident light, with the direction department at the opening place of light reflection to reflection piece 200, and jet out from the opening of reflection piece 200, realize changing the purpose of the direction of propagation of the light that the light source subassembly sent.

Moreover, in the light supplement device, the reflection member 200 includes a plurality of sub-reflection portions 210, the plurality of sub-reflection portions 210 are connected to each other, each sub-reflection portion 210 has a sub-reflection surface 211, and each sub-reflection surface 211 is a diffusion curved surface, so as to ensure that any sub-reflection surface 211 has a reflection capability, and when any sub-reflection surface 211 provides a reflection function, the light entering the sub-reflection surface 211 can be diffused, so that the area of the illumination surface formed after being reflected by any sub-reflection surface 211 is larger than the area of the sub-reflection surface 211, the light supplement device can provide a light emitting surface larger than the light emitting area of the light source assembly for a user, and further, the glare condition of the user under the condition of directly viewing the light supplement device is prevented.

Specifically, the shape of each sub-reflection part 210 may be different, and in another embodiment of the present application, in order to facilitate the molding of the plurality of sub-reflection parts 210 in the reflection member 200, the plurality of sub-reflection parts 210 may be made to have the same shape and the same size. As described above, the sub-reflecting surfaces 211 of the sub-reflecting portions 210 are all diffusion curved surfaces, and based on this, the sub-reflecting surfaces 211 may be specifically free curved surfaces, and the shape of the sub-reflecting portions 210 may be the same as the shape of the sub-reflecting surfaces 211, except that the sub-reflecting portions 210 have thicknesses. In the case where the plurality of sub-reflective portions 210 are arranged, the plurality of sub-reflective portions 210 may be regarded as approximate particles, and the plurality of sub-reflective portions 210 may be arranged in a determinant. Of course, the sub-reflection parts 210 in the reflection member 200 may be arranged in other arrangements. More specifically, the arrangement of the plurality of sub-reflection portions 210 may be determined according to the shape of the single sub-reflection portions 210 and the general shape of the coverage area of the reflection member 200, which is not limited herein.

Of course, in order to ensure that the illumination effect of the light reflected by the reflector 200 is relatively good, in the light supplement device disclosed in the embodiment of the present application, each sub-reflecting surface 211 is configured to reflect the light emitted by the light source assembly, and the reflected light is made to propagate to the target area. That is, the sub-reflecting surfaces 211 of each sub-reflecting portion 210 can have the ability of reflecting the light of the light source module, the propagation direction of the light reflected by each sub-reflecting surface 211 is directed to the target area, and the final irradiation positions of the light reflected by the sub-reflecting surfaces 211 are all the target areas. The positions of the target region and the reflecting element 200 correspond to each other, and the range of the relative position between the target region and the light source assembly is relatively large, which is not limited herein. In addition, the specific area of the target region may be determined according to actual requirements, and is not limited herein.

In this case, the light rays for providing illumination in the target area are overlapped with the light rays reflected by the plurality of sub-reflecting surfaces 211, so that the illumination effect in the target area is relatively good; meanwhile, under the condition, because the light of the target area corresponds to the plurality of sub-reflecting surfaces 211 at the same time, and then when the user looks straight at the reflecting piece 200, the light-emitting area of the light supplement device seen by the user is basically equal to the sum of the areas of the plurality of sub-reflecting surfaces 211, so that the light-emitting area of the light supplement device disclosed by the embodiment of the application is far larger than that of the light source assembly, and the user experience is improved.

The embodiment of the application discloses light filling device, its light source subassembly and reflector 200 cooperation to utilize reflector 200 to reflect the light that the light source subassembly sent to the target area. Wherein, the light source subassembly is the diffuse light source, and the respective sub-plane of reflection 211 of a plurality of sub-reflecting portions 210 in the reflector 200 is the diffusion curved surface, in the course of operation of light filling device, a plurality of sub-planes of reflection 211 all correspond with the light source subassembly, provide the reflex action for the light that the light source subassembly sent, and a plurality of sub-planes of reflection 211 all configure into the reflex ray to the target area propagation, in order when guaranteeing that the target area has better illuminating effect, the light emitting area that can also make the user see when the light filling device is looked directly in the target area is great relatively, prevent that the glare phenomenon from appearing in the user, promote user experience.

In order to make the controllability of the target region stronger, optionally, in the light supplement device disclosed in the embodiment of the present application, an arc line segment of any sub-reflecting surface 211, which is cut by a plane, satisfies a concave function, i.e. f ((x 1+ x 2)/2) ≧ f (x 1) + f (x 2))/2. As described above, each reflecting surface is a diffusion curved surface, and then, when any sub reflecting surface 211 intersects a plane, the sub reflecting surface 211 is cut by the plane, an arc line segment is formed on the sub reflecting surface 211, a coordinate system is constructed by the arc line segment, and a function corresponding to the arc line segment satisfies a concave function.

In this case, as shown in fig. 11, the light emitted from the light source module is irradiated onto any of the sub-reflecting surfaces 211, and the light irradiated surface formed by the reflection of the sub-reflecting surface 211 is similar to the shape of the sub-reflecting surface 211, and the light irradiated surface is rotated 180 ° relative to the sub-reflecting surface 211. Intuitively, for example, the sub-reflecting surface 211 is vertically or approximately vertically arranged, among the light rays emitted by the light source assembly, the light rays irradiated to the vicinity of the bottom edge of the sub-reflecting surface 211 are reflected by the sub-reflecting surface 211 and then are located in the vicinity of the top surface of the illumination surface, and the light rays irradiated to the vicinity of the left side of the sub-reflecting surface 211 are reflected by the sub-reflecting surface 211 and then are located in the vicinity of the right side of the illumination surface, so that the sub-reflecting surface 211 has the capability of light emission in a staggered manner.

Under the condition of adopting the technical scheme, because the light reflected by the sub-reflecting surface 211 intersects with the light at the corresponding position in the transmission process, that is, the light reflected by the sub-reflecting surface 211 is firstly converged and then diffused, then, under the condition of adopting the technical scheme disclosed by the embodiment, the target area with the required size and position can be obtained by controlling the parameters such as the intersection position of a plurality of light reflected by the sub-reflecting surface 211, the transmission distance after the light intersection and the like according to the specific size of the target area, so that the controllability of the target area is relatively stronger.

As described above, in the process of forming and assembling the light supplement device, the reflection member 200 may have a hemispherical structure, and the reflection member 200 is reversely buckled above the light source assembly, so as to prevent light emitted from the light source assembly from directly irradiating the eyes of a user outside the light supplement device, thereby causing a glare phenomenon.

More specifically, the light source assembly may include a circuit board and the light emitter 100, wherein the light emitter 100 is electrically connected to the circuit board, and the light emitter 100 is disposed on one side of the circuit board, and the circuit board may provide a mounting function and a power supply function for the light emitter 100. In practical application, in order to satisfy heat dissipation and wiring demand, the circuit board size is greater than luminous body 100's size usually, and then, under the condition that adopts above-mentioned technical scheme for the circuit board can produce certain effect of sheltering from to the light of reflector 200 reflection, and then produces adverse effect to the light filling effect of light filling device.

Therefore, in this embodiment, in order to improve the integrity of the light-illuminated surface of the light-compensating device and improve the light-compensating effect as much as possible, optionally, the reflector 200 and the light-emitting body 100 are both disposed on one side of the circuit board, and specifically, the reflector 200 and the light-emitting body 100 may be both disposed on the first side of the circuit board. Meanwhile, the reflection member 200 is provided with a light outlet to ensure that the light emitted from the light emitting body 100 has a light emitting position after being reflected by the reflection member 200. The shape and size of the light outlet may be determined according to the specific shape and size of the reflective member 200, and is not limited herein.

However, in the embodiment of the present application, the coverage of the light exit may be defined, and specifically, in a first direction around the thickness direction of the circuit board, the coverage angle of the light exit may be greater than or equal to 180 °; in a second direction that surrounds the light emitter 100 and intersects a straight line in the thickness direction, the covering angle of the light exit port may be greater than or equal to 90 °.

Intuitively speaking, the circuit board is regarded as a plane, the light-emitting body 100 is regarded as a mass point, a spatial rectangular coordinate system is established, the position where the light-emitting body 100 is located is defined as an origin, the plane where the circuit board is located is an XY plane, the first side of the circuit board is in a positive Z direction, the light-emitting body 100 irradiates in the positive Z direction, the thickness direction of the circuit board is in the Z direction, the first direction is the circumferential direction of a Z axis, and an arc line where the second direction is located is a semicircular connecting line between two points which are arbitrarily symmetrical about the plane passing through the Z axis. For example, the reflectors 200 are all located on the side of the positive Z axis in the XY plane, and the reflectors 200 are located on the side of the positive Y axis in the XZ plane.

Based on the above limitation on the coverage of the light outlet, it can be ensured that the sub-reflecting surface 211 of any sub-reflecting part 210 on the reflecting member 200 faces the direction of the light outlet to different degrees. Furthermore, in the first direction, the light reflected by the edges of the two opposite sides of the reflector 200 (specifically, the left side and the right side of the reflector 200) will not reflect the light to the inside of the reflector 200, and similarly, in the second direction, the light reflected by the area of the reflector 200 away from the light emitter 100 (specifically, the top of the reflector 200) will not reflect the light to the area between the reflector 200 and the light emitter 100, so as to ensure that the light reflected by any sub-reflecting surface 211 on the reflector 200 can be emitted to the target area outside the reflector 200.

In the above embodiment, since the light emitting body 100 of the light source assembly is a diffused light source, and the reflecting member 200 is provided with the light outlet, the reflecting member 200 cannot provide a complete shielding effect for the light emitting body 100 in the circumferential direction of the light emitting body 100, so that the light emitted by the light emitting body 100 and directed toward the position of the light outlet has the capability of being directly directed to the outside of the reflecting member 200.

Based on this, in order to prevent the light emitting body 100 from being directly irradiated by light, the light supplement device disclosed in the above embodiment may further include a baffle 400, and the baffle 400 may be formed of a light shielding material, and the specific shape of the baffle 400 may be determined based on the specific propagation condition of the light emitted by the light emitting body 100 according to parameters such as the specific shape of the reflecting member 200. For example, in the first direction, if the plurality of reflective surfaces of the reflective member 200 cover 180 °, the baffle 400 may also cover a 180 ° area corresponding to the other side of the light emitter 100, and the baffle 400 may be a volute structure, so that the baffle 400 is disposed in the area where the light outlet of the reflective member 200 is located to block a part of the light outlet, thereby ensuring that the light emitted by the light emitter 100 directly emitted to the light outlet can be blocked by the baffle 400, and further preventing the light emitted by the light emitter 100 from being directly emitted to the eyes of the user.

In another embodiment of the present disclosure, the light supplement device may further include a reflective lens 310, where the reflective lens 310 is disposed corresponding to the light outlet, so as to reflect the light emitted from the light emitter 100 to the light outlet by using the reflective lens 310, and make the reflected light incident on the sub-reflective surface 211 of the reflective member 200, so that the sub-reflective surface 211 provides a reflective effect for the reflected light, and the reflected light propagates to the target area. That is to say, under the condition that the reflective member 200 is provided with a light outlet, and the reflective member 200 cannot provide a complete shielding effect for the light emitter 100 in the circumferential direction of the light emitter 100, and the above-mentioned baffle 400 is not provided, the embodiment of the present application may further provide the reflective lens 310, so as to utilize the reflective lens 310 to provide a reflection effect for a part of the outgoing light of the light emitter 100 which is emitted to the light outlet, change the propagation direction of the part of the light, reflect the light back into the reflective member 200 again, and reflect on the corresponding sub-reflective surface 211, and finally emit the light to the target area.

As described above, the plurality of sub-reflecting surfaces 211 of the reflecting member 200 may cover at most 180 ° of the spatial range around the light emitter 100 in the first direction, and for this reason, the reflecting lens 310 may be made to cover 180 ° of the spatial range on the other side of the light emitter 100 in the first direction; moreover, the reflecting lens 310 may include a plurality of plane mirrors, and the relative position relationship of the plane mirrors in the reflecting lens 310, the size and shape of each plane mirror, and the like are correspondingly determined according to parameters such as the specific configuration of the reflecting member 200.

In order to reduce the design difficulty of the reflective lens 310, in another embodiment of the present application, the reflective lens 310 includes a plurality of light distribution surfaces, which may be planar or curved, and is not limited herein. Furthermore, in the process of blocking the light of the light emitting body 100 from directly projecting from the light outlet by the reflective lens 310, the light can be distributed through the matching surfaces and reflected onto the sub-reflecting surface 211. Specifically, specific parameters of the light distribution surfaces can be determined according to snell's law, so that the light distribution surfaces conform to snell's law, and light rays emitted from the light emitter 100 to the light outlet can be incident to the sub-reflecting surface 211 of the reflector 200 after being distributed by the light distribution surfaces. In this case, there are various combinations of the light-distributing surfaces in the reflective lens 310, which are not listed here. In addition, the parameters of the light-matching surfaces can be set based on the physical characteristics of the critical angle, so that the light can be provided with the total reflection effect under the condition that the light-matching surfaces are not provided with the reflection layers.

Meanwhile, in the present embodiment described above, the outer edge of the figure of the reflection lens 310, which is cut by any plane perpendicular to the center line of the reflection lens 310, may be a semicircular line segment. In this case, after the reflective lens 310 provides an optical effect for the light emitted from the light emitter 100 to propagate toward the light outlet, the propagation plane of the light may not be changed. That is, the propagation surfaces of the light before entering the reflective lens 310, propagating in the reflective lens 310, and propagating after exiting from the reflective lens 310 are the same plane.

As described above, the reflector 200 includes a plurality of sub-reflectors 210, and the sub-reflectors 211 of any sub-reflector 210 are diffusion curved surfaces, and the shapes of the sub-reflectors 210 may be determined according to actual requirements, in order to make the shapes of the illumination surfaces formed by the sub-reflectors 211 reflecting on the target area relatively more regular, the application range of the illumination surfaces is increased, and optionally, the projection of any sub-reflector in the thickness direction thereof is rectangular, which may also reduce the difficulty in laying the sub-reflectors 210, and may reduce the difficulty in setting the structural parameters and the position parameters of each sub-reflector 211. Here, a perpendicular line to a tangent plane at the center of the sub-reflecting surface 211 may be taken as a thickness direction of the sub-reflecting surface 211.

Based on the sub-reflecting surfaces 211 with the above shapes, in the process of laying the plurality of sub-reflecting parts 210, optionally, the reflecting member 200 includes a plurality of sub-reflecting parts 210 in a first direction around the thickness direction of the circuit board and in a second direction around the light emitter 100 and intersecting with a straight line where the thickness direction of the circuit board is located. In other words, in the present embodiment, the plurality of sub-reflective portions 210 are distributed in a "determinant" along two surrounding directions, which can reduce the difficulty in arranging the plurality of sub-reflective portions 210, and facilitate the plurality of sub-reflective portions 210 to form the reflective member 200 with a curved surface structure disposed around the light emitter 100.

As described above, the plurality of sub-reflection parts 210 of the reflection member 200 are connected to each other, and specifically, the plurality of sub-reflection parts 210 may be separately molded, and the plurality of sub-reflection parts 210 are connected to each other according to a predetermined rule to form the reflection member 200. In another embodiment of the present application, the reflection member 200 may be formed by an integral molding, which can reduce the processing difficulty of the reflection member 200, and improve the accuracy of the corresponding relationship between the sub-reflection portions 210, thereby ensuring that each sub-reflection surface 211 can reliably correspond to the target area.

To this end, further, in the first direction, an angle covered by the plurality of sub-reflecting surfaces of the reflecting member 200 may be made less than or equal to 140 °; also, in the second direction, the coverage angle of the sub reflection surface 211 of the reflection member 200 may be made equal to 90 °. Under the condition that adopts this kind of technical scheme, because the angle of reflecting piece 200 for covering is less than the semicircle on the first direction to under the condition that adopts integrated into one piece's mode to form reflecting piece 200, can reduce the drawing of patterns degree of difficulty of reflecting piece 200 by a wide margin, promote the yield of reflecting piece 200, and can guarantee that reflecting piece 200 still can provide relatively great coverage for the light source subassembly, promote the light utilization ratio of light source subassembly as far as possible.

As described above, the outer edge of the figure of the reflection lens 310, which is cut by a plane perpendicular to the center line of the reflection lens 310, is a semicircular line segment, and, in an expanded sense, the outer edge of the figure of the reflection lens 310, which is cut by a plane perpendicular to the center line of the reflection lens 310, is an arc line segment. In the above embodiment, the reflecting surface formed by the plurality of sub-reflecting surfaces 211 of the reflector 200 may cover the space within 140 ° around the light emitter 100 in the first direction, and in this case, if the arc-shaped line segment continues to be a semicircular line segment, part of the light emitted from the light emitter 100 to the light outlet may not be incident on at least one of the plurality of sub-reflecting surfaces 211 of the reflector 200 even after the light is distributed by the reflecting lens 310.

For this reason, alternatively, in the embodiment of the present application, the distance between the arc line segment and the center line may be gradually decreased in a direction in which the end point of the arc line segment points to the midpoint of the arc line segment. That is, the larger the "protrusion degree" of the portion of the reflective lens 310 closer to the circuit board is, the reflective lens 310 has an effect of collecting light, and the range covered by the light of the light emitter 100 in the second direction is reduced, so that the range covered by the light of the light emitter 100 originally covering the range of 180 ° in the second direction after the light distribution is performed by the reflective lens 310 is equal to or less than 140 °, which can ensure that the light can be incident on the sub-reflective surface 211 of the reflector 200 with the coverage range of only 140 ° after the light distribution is performed by the reflective lens 310.

Certainly, in the above embodiment, some light rays emitted from the light emitting body 100 cannot be distributed by the reflective lens 310, and cannot be directly incident on the sub-reflective surface 211, and further, the light rays may be directly emitted to the outside of the light supplement device, for this reason, the light supplement device may further include a refractive lens 320, the refractive lens 320 is disposed on the other side of the reflective lens 310, that is, the refractive lens 320 is disposed between the light emitting body 100 and the reflective member 200, and the refractive lens 320 is connected to the reflective lens 310, so as to ensure that the light rays emitted from the light emitting body 100 can be emitted after being distributed by the reflective lens 310 (or the refractive lens 320). By setting the parameters of the refractive lens 320, the refractive lens 320 can have the ability to converge the light in the second direction, so as to reduce the coverage angle of the light emitted from the light emitter 100 and propagating through any plane passing through the center line of the reflective lens 310, and ensure that the light converged by the refractive lens 320 can only irradiate on the part of the area of the reflector 200 distributed along the second direction.

In other words, as shown in fig. 13, when the refraction lens 320 is provided, the light beam that can be emitted to the sub-reflecting surface 211 in the light emitter 100 can be deflected to the middle position in the second direction near the reflector 200 after the light beam is distributed by the refraction lens 320, and then can be incident on the sub-reflecting surface 211. The angle of the light deflection is a preset angle, and the specific size of the preset angle can be set according to actual requirements through specific parameters of the light distribution surface in the refractive lens 320, so that the light can be deflected to the middle position of the reflector 200 in the second direction after being deflected by the refractive lens 320, and is incident on the sub-reflecting surface 211.

Under the technical solution, for the light originally incident to the area of the reflector 200 closer to the circuit board, the light can be further relatively far away from the circuit board under the action of the refractive lens 320, so as to prevent the path of the light reflected by the sub-reflecting surface 211 from being blocked by the reflective lens 310. And to the light that originally incides to the regional of reflector 200 far away from the circuit board, under the effect of refraction lens 320, can make aforementioned light more be close to the circuit board to make this light relatively less at the in-process of light-emitting and the contained angle between the light-emitting outlet, and then the coverage area of limited light makes the regional concentration of illumination of light filling device higher relatively.

Specifically, the refractive lens 320 may have a light distribution surface, and the light distribution surface may have a free-form surface structure, and the actual parameters of the light distribution surface may be determined according to parameters such as a coverage area and a deflection angle of the required light distribution, which is not limited herein.

Of course, in another embodiment of the present application, the number of the light distribution surfaces of the refractive lens 320 may also be multiple, and multiple light distribution surfaces may provide a light distribution function for the light emitted by the light emitter 100 together.

Certainly, in the process of designing the plurality of light distribution surfaces in the refractive lens 320, the plurality of light distribution surfaces need to satisfy snell's law, so that the light emitted from the light emitter 100 to the sub-reflecting surface 211 is distributed by the plurality of light distribution surfaces, can be deflected by a preset angle to the middle position close to the reflector 200 in the second direction, and is incident to the sub-reflecting surface 211. In this case, there are various combinations of the light-distributing surfaces of the refractive lens 320, which are not listed here.

Based on the above embodiment, under the condition that the number of the light distribution surfaces of the refractive lens 320 is multiple, the coverage area of the refractive lens 320 can be further enlarged, so that the coverage area of the reflective lens 310 can be reduced, and the light rays emitted by the light emitting body 100, which are close to the straight line where the axis of the light emitting body 100 is located, are prevented from being reflected by the reflective lens 310 and then emitted to the direction, where the circuit board is located, in the reflective element 200, so that the illumination area of the light supplementing device is limited, and the illumination concentration capability of the light supplementing device is improved.

Specifically, in the direction of the central line of the reflective lens 310, the light distribution surface of the refractive lens 320 extends toward the direction close to the reflective lens 310 until the light distribution surface exceeds the edge of the light emitter 100 close to the reflective lens 310, so that a part of the light emitted by the light emitter 100 to the light outlet can also be distributed by the refractive lens 320, and the part of the light is deflected by a predetermined angle toward the direction close to the reflector 200 and enters the sub-reflective surface 211 of the reflector 200. It should be noted that, for the light rays with different irradiation directions on the light emitter 100, the deflection effect provided by the refractive lens 320 for the different light rays may also be different, and further, the predetermined angle may be flexibly selected corresponding to the light rays with different irradiation directions.

As described above, the coverage of the sub-reflecting surfaces 211 of the reflector 200 may be less than 180 °, in this case, the specific configuration of the reflecting lens 310 may be designed to have the function of converging the light in the second direction, and based on this, in the design process of the refractive lens 320, the refractive lens 320 may also have the function of converging the light in the second direction. Specifically, the outer edge of the graph of the refractive lens 320, which is cut by a plane perpendicular to the center line of the reflective lens 310, is also an arc line segment, and the distance between the arc line segment and the center line can be gradually decreased along the direction in which the end point of the arc line segment points to the middle point of the arc line segment. That is, the larger the "protrusion degree" of the portion of the refractive lens 320 closer to the circuit board is, the refractive lens 320 has an effect of collecting light, the range covered by the light of the light-emitting body 100 in the second direction is narrowed, and the range covered by the light of the light-emitting body 100 originally covering the range of 180 ° in the second direction after being distributed by the refractive lens 320 is equal to or smaller than the range of the coverage angles of the plurality of sub-reflecting surfaces 211 of the reflector 200, which can ensure that the light can enter the range covered by the sub-reflecting surfaces 211 of the reflector 200 after being distributed by the refractive lens 320.

In order to solve the above technical problem, in another embodiment of the present invention, the outer edge of the graph obtained by cutting the reflection lens 310 by a plane perpendicular to the central line may still be a semicircular line segment, meanwhile, the reflection element 200 may further include two shielding portions 220, the sub-reflection portions 210 are all sandwiched between the two shielding portions 220, and each shielding portion 220 extends toward the direction of the back ion reflection portion 210 along the direction of the central line of the reflection lens 310 until the edge of the shielding portion 220 departing from the sub-reflection portion 210 is flush with the light emitting body 100, or until the edge of the shielding portion 220 departing from the sub-reflection portion 210 exceeds the light emitting body 100. Under the condition of adopting the technical scheme, even if the reflection lens 310 cannot provide a refraction effect for the light, the light emitted from the reflection lens 310 can be received and shielded by the shielding parts 220 at the two sides, so that the situation that part of the light is emitted to the outside of the light supplementing device without being reflected by the sub-reflection surface 211 is prevented.

Of course, when the shielding portion 220 is disposed on the reflector 200, some of the light emitted from the light emitter 100 cannot be distributed by the reflecting lens 310, and some of the light that cannot be directly incident on the sub-reflecting surface 211 can also be shielded by the shielding portion 220, so as to prevent the light from directly emitting to the outside of the light supplement device. In order to further improve the utilization efficiency of the light in the light filling device, the shielding portion 220 may have a reflection function, so that the light incident on the shielding portion 220 may be reflected by the shielding portion 220, and emitted to the sub-reflecting surface 211, and finally reflected by the sub-reflecting surface 211 to be emitted to the target area. Correspondingly, in this embodiment, the outer edge of the graph obtained by cutting the refractive lens 320 by the plane perpendicular to the center line may also be kept as a semicircular line segment, so as to reduce the processing difficulty of the reflective lens 310 and the refractive lens 320.

To further facilitate understanding, a specific embodiment of the reflective lens 310 and the refractive lens 320 is provided herein based on the above descriptions of the reflective lens 310 and the refractive lens 320. In addition, for convenience of description, the combination of the reflective lens 310 and the refractive lens 320 can be regarded as a whole and is referred to as the lens assembly 300.

Specifically, as shown in fig. 10, which is a schematic cross-sectional view of the lens assembly 300 taken by a plane of the center line of the over-reflecting lens 310, the lens assembly 300 has a plurality of light-matching surfaces, which are respectively denoted as a curved surface 1, a curved surface 2, a curved surface 3, a curved surface 4, a curved surface 5, a curved surface 6, and an end surface. The end face is reserved for connection between curved surfaces to meet the requirement of a certain wall thickness, does not participate in light path control, can be set to be a plane, a curved surface and the like at will, and is preferably a plane, so that the forming process of the lens assembly 300 can be conveniently carried out, and more particularly, the line width of the cross section of the end face is greater than or equal to 0.3mm. The curved surfaces 1 and 2 are light distribution surfaces in the refractive lens 320, and the

curved surfaces

3, 4 and 5 are light distribution surfaces in the reflective lens 310.

With reference to fig. 10 and 13, light emitted from the light emitting device 100 is deflected by the curved surfaces 1 and 3, one part of the light enters the curved surface 4 and is reflected by the curved surface 4, the light path is reflected by parallel light, enters the curved surface 5, is deflected by the curved surface 5 and then exits in parallel, or is reflected by the curved surface 4 and then converges, is deflected by the curved surface 5 and then converges at a point, and then is scattered and emitted to the plurality of sub-reflecting surfaces 211 of the reflecting element 200. The other light emitted from the light emitter 100 is deflected by the curved surface 1 and enters the curved surface 2, is deflected by the curved surface 2 and then exits, and is emitted to the plurality of sub-reflecting surfaces 211 of the reflector 200.

For convenience of description, the corresponding curved surfaces are represented by the line segments of the cross sections of the curved surfaces in fig. 12, so as to describe and define the specific shape range of the curved surfaces.

The curved surface 1 may be a free-form surface having a characteristic that an end portion of the curved surface 1 close to the reflection lens 310 has the largest value in the Z direction and a position of the curved surface 1 gradually distant from the reflection lens 310 has a gradually smaller value in the Z direction.

The curved surface 2 may also be a free curved surface, and the curvature of the curved surface 2 tends to increase and decrease in a direction pointing to the negative direction of the Y axis along the positive direction of the Y axis, and as a whole, a portion of the curved surface 2 located in the negative direction of the Y axis is relatively narrow, and a portion located in the positive direction of the Y axis is relatively wide, that is, any point location is selected on the two portions of the curved surface 2 located in the negative direction of the Y axis and the positive direction of the Y axis, respectively, and if the values of the selected point locations in the Z direction are equal, a distance Δ Y between the point location located in the positive direction of the Y axis and the Z axis is equal ₁ Greater than the distance DeltaY between a point location in the negative Y-axis region and the Z-axis ₂ 。

The curved surface 3 can be a straight line segment, after the light is incident on the curved surface 3, the curved surface 3 can provide deflection action for the light, the light basically does not participate in the main change process of a light path, the product is convenient to form and mold-stripping, an included angle formed by the curved surface 3 and a Z axis is recorded as bmj, and bmj is set to be more than or equal to 0.5 degrees and less than or equal to 20 degrees.

The end surface 7 in fig. 10 does not participate in the optical surface, and is intended to join the curved surfaces 3 and 4, and the curved surfaces 1 and 2. It can be any curved surface, and in order to reduce the processing difficulty, the end face 7 can be a plane.

The curved surface 4 can be a free curved surface, and the distance delta Y between the end part of the curved surface 4 close to the diffusion light source and the Z axis ₃ Is larger than the distance delta Y between the end part of the curved surface 2 close to the reflecting lens 310 and the Z axis ₄ . The curved surface 4 is a curved surface protruding towards the negative direction of the Y axis, and the curved surface is used for reflecting light deflected from the curved surface 3 to the curved surface 5 for emitting. The curvature of the curved surface 4 at different locations decreases as the location moves away from the light source.

For convenience of processing, the curved surface 5 may be set to be a straight line segment, and in order to more preferably realize the deflection of the light reflected from the curved surface 4 toward the reflector after the deflection of the light by the curved surface 5, the value of the curved surface 5 in the Z direction may be increased as the value of the Y direction becomes smaller. And, the distance DeltaY between the Z axis and the end part of the curved surface 5 close to the Z axis ₅ Is greater than or equal to the distance delta Y between the end part of the curved surface 2 close to the reflecting lens 310 and the Z axis ₆ 。

The curved surface 6 is the connecting surface between the curved surface 5 and the curved surface 2, which can be set as a straight line segment, and the distance DeltaY between the extending direction of the curved surface 6 and the Z axis and the end part of the curved surface 5 close to the Z axis ₅ And the distance DeltaY between the end of the curved surface 2 close to the reflecting lens 310 and the Z axis ₆ Is relevant.

In order to more clearly describe the reflective lens and the refractive lens disclosed in the embodiments of the present application, a specific embodiment or a class of embodiments in which each curved surface is expressed by a formula is given below.

The curved surface 1 can be a free curved surface, and the left half part of the light is deflected by the curved surface 1 and then deflected by equal coefficients. Or, an included angle between the light incident to the curved surface 1 and the Z axis is θ, a deflection coefficient is set for a portion of the curved surface 1 corresponding to the light, and then an included angle between the light deflected by the curved surface 1 and the Z axis is θ 1= θ a1 (where a1 is the deflection coefficient, and the deflection coefficient may range from 0.4 to 1); correspondingly, the portion of the curved surface 1 corresponding to the right half of the light beam is similarly set to have an equal-coefficient deflection (the deflection coefficient may be the same as or different from the deflection coefficient described above, θ 1' = θ a2, and a1= a2 may be used to reduce the design difficulty).

Because of this, when θ =0, the optical path is deflected by the curved surface 1 without deflection, which is not in accordance with the design expectation. For this purpose, the deflection angles θ 1 and θ 1' may be compensated, that is, an angle between the incident light at 0 degree and the normal after being deflected (downward) by the curved surface 1 is set to be α, α is preferably downward in the range of 0 to 20 degrees, and α is ≦ pi/2 × (1-a 2) coefficient. Therefore, the refraction angle theta 1 after being deflected by the curved surface 1 can be obtained, theta 1= theta a 1-alpha, meanwhile, the angle theta of the light rays incident to the curved surface 1 is known and accords with the Snell's law of refraction, and the adjacent points are set to be positioned on the tangent line of the front side points, so that the surface type data of the curved surface 1 can be obtained in an iterative manner.

More specifically, describing the known incident vector as I, the refraction vector as O, and the normal vector as N with a vector equation, solving for the normal vector according to snell's law:

Nn＝(O-n1*I)/sqrt(1+n1^2-2*n1*dot(On,In))；

n1= n _ a/n _ p, where n _ a is an air refractive index (incident light) and n _ p is a refractive index of a material of the refractive lens 320

By

The tangential vector can be derived

And the slope is marked as kn, (n is an array, namely the number of curve calculation points)

Setting the coordinates P (zn, yn) and P (zn +1, yn + 1) of the adjacent points of the curved surface,

kn＝(yn+1-yn)/(zn+1-zn)；

the discrete points z and y of the curved surface 1 can be obtained, so as to obtain the surface shape of the curved surface 1.

Zn+1＝Zn*(1-kn*tan(θn))/(1-kn*tan(θn+1))；

yn+1＝zn+1*tan(θn+1)

The curved surface 2 is designed to further deflect the light incident on the curved surface 2 after the curved surface 1 is partially deflected, so that the edge light is totally incident on the sub-reflecting surface 211 of the reflector 200. Similarly, knowing the incident angle and the coverage of the sub-reflecting surfaces 211 of the reflector 200, the exit angle of the light exiting through the curved surface 2 can be obtained, and the coordinate parameters of the curved surface 2 can be solved according to the law of refraction (snell's law) and the tangent of the point on the front side where the adjacent point is set. The curvature of the curved surface 2 gradually increases and then decreases from the positive direction to the negative direction of the Y axis, the whole curved surface is narrow in the negative direction of the Y axis, and the positive direction of the Y axis is wide, namely the | Y | value close to the reflecting surface side is smaller than the right side under the same Z value.

The curved surface 3 may be a straight line segment, which may further improve the mold-releasing smoothness of the lens assembly 300 during mold processing, and the included angle between the curved surface and the normal line may be set to bmj, which is defined as 0.5-20 degrees.

The curved surface 4 is a free curved surface, and the light emitted by the luminous body 100 is deflected by the curved surface 3 and is incident on the curved surface 4, so that the condition that the optically dense medium enters the optically sparse medium to generate total reflection is met, the part of light is reflected to the curved surface 5 through the curved surface 4 to be emitted, and the emitted light is set to intersect with one point O. In another case, for example, the light emitted through the curved surface 5 is parallel light, and the parallel light is incident on the reflecting member 200. Preferably, the light rays may be emitted in a staggered manner, so that the light rays can irradiate a larger area on the plurality of sub-reflecting surfaces 211 in the reflecting member 200.

The curved surface 5 is preferably a straight section surface (which may also be a standard curved surface to facilitate calculation of the surface shape of the curved surface 4), and when the reflecting surface 4 reflects parallel light, the section of the curved surface 5 preferably has a Z value greater at a portion near the reflecting member 200 than at a portion near the reflecting lens 310. When the light beam is reflected by the curved surface 4 of the reflecting surface and then converges, the light beam is deflected by the curved surface 5 and then converges at a point, and the curved surface 5 is not particularly limited and is preferably a straight section surface. Given that the structural parameters of the curved surfaces 3 and 5 are respectively denoted as P3 (y 3, z 3) and P5 (y 5, z 5), and the curved surface 4 is denoted as P4 (y 4, z 4), under the condition of adopting the technical scheme of emitting parallel light, the method meets sqrt (y 3^2+ z3^ 2) + n ^ sqrt ((y 4-y 3) ^2+ (z 4-z 3) ^2+ (y 5-y 4) ^2+ (z 5-z 4) ^ 2) = rho, and rho is obtained from the initial point of P4 and the initial effective point coordinate of P5. Similarly, when the reflection of the curved surface 4 appears convergent, and finally converges at a point after emerging from the curved surface 5, the coordinate of the point is [ yo, zo ], then sqrt (y 3^2+ z3^ 2) + n ^ sqrt ((y 4-y 3) ^2+ (z 4-z 3) ^2+ (y 5-y 4) ^2+ (z 5-z 4) ^ 2) + sqrt ((yo-y 5) ^2+ (zo-z 5) ^ 2) = ρ'. ρ' can be directly solved by fixing the coordinates of the starting point of the curved surface 4 and the effective point and the intersection point O of the P5.

As described above, the reflection member 200 may cover a portion of the space around the light emitter 100, and in the first direction and the second direction, the reflection member 200 may include a plurality of sub-reflection portions 210, and since the light travels along a straight line, and each sub-reflection surface 211 is a diffusion curved surface, for this reason, in the process of arranging the plurality of sub-reflection portions 210 distributed along the first direction, two of the plurality of sub-reflection portions 210 may be a first sub-reflection portion and a second sub-reflection portion, respectively, and the second sub-reflection portion is located on a side of the first sub-reflection portion away from the circuit board.

And, the first sub-reflecting part is connected with the second sub-reflecting part, specifically, the first sub-reflecting part is connected with the second surface of the second sub-reflecting part through its own first surface 212, so that the two are connected into a whole. In the process of arranging the first sub-reflecting part and the second sub-reflecting part, as shown in fig. 5, the second surface may be located on a side of the first line segment 213, where the first surface 212 intersects with the first sub-reflecting surface 211 of the first sub-reflecting part, facing away from the first sub-reflecting surface 211.

In the embodiment of the present application, the first sub-reflection portion has a first sub-reflection surface 211 and a first surface 212, and the first surface 212 is connected to the first sub-reflection surface 211 of the first sub-reflection portion itself, and the two surfaces are located on different planes (or curved surfaces), so that when the two surfaces intersect, an intersecting line segment is formed, and the intersecting line segment is the second first line segment 213. The first surface 212 of the first sub-reflection part is further connected with the second surface of the second sub-reflection part, and a positional relationship between the second surface and the first surface 212 may characterize a relative positional relationship between the first sub-reflection part and the second sub-reflection part. Because the second surface sets up towards the circuit board, for this reason, through making the second surface be located one side that first line segment 213 deviates from first sub-plane of reflection 211, when the light illumination of luminous body 100 transmission is in the region at first line segment 213 place, can prevent that aforementioned second surface from receiving light, and make light take place to reflect at the second surface to final directive circuit board or luminous body 100, lead to the mixed and disorderly unordered light path in the light filling device, produce adverse effect to the accuse light process of light filling device.

More specifically, the second surface may be translated by a preset distance in a direction away from the first sub-reflecting surface 211 relative to the first line segment 213, and any position on the second surface has a distance greater than zero from the first line segment 213, in this embodiment, if the shapes of the first sub-reflecting portion and the second sub-reflecting portion are the same, on a side of the first sub-reflecting portion and the second sub-reflecting portion away from the first sub-reflecting surface 211, the second surface may be protruded from the first surface 212 in a suspended manner, in order to improve connection reliability between the first sub-reflecting portion and the second sub-reflecting portion, in a direction perpendicular to the first sub-reflecting surface 211, a portion of the second surface protruded from the first surface 212 in a suspended manner may be smaller than 1mm, and in this case, an area of the shielding area generated by a portion of the first sub-reflecting portion (of the first sub-reflecting surface 211) close to the first surface 212 to a portion of the second sub-reflecting portion 211 close to the first surface 212 may also be reduced.

In order to further improve the connection reliability between the first sub-reflecting part and the second sub-reflecting part, the middle position of the second surface may be intersected with the first sub-reflecting surface 211, that is, the second surface is wholly translated towards the direction close to the first sub-reflecting surface 211 until the second surface is intersected with the first sub-reflecting surface 211, so as to increase the connection area between the first surface 212 and the second surface as much as possible, and further, the adverse effect on the light receiving quantity of the second sub-reflecting surface 211 due to the fact that the first sub-reflecting surface 211 shields the second sub-reflecting surface 211 may be further reduced.

Certainly, in this embodiment, it is further required to ensure that the second surface does not exceed the side of the first sub-reflecting surface 211 in the first line segment 213 as a whole, and for this reason, in the case that both the first sub-reflecting portion and the second sub-reflecting portion are the extended curved surfaces, the second line segment obtained by intersecting the second sub-reflecting surface 211 and the second surface and the curvature of the first line segment 213 may be limited. Specifically, the curvature of the second line segment may be made smaller than the curvature of the first line segment 213, that is, the degree of curvature of the second line segment is smaller than that of the first line segment 213. Under the condition of adopting the above technical scheme, by making the middle part of the first line segment 213 intersect with the middle part of the second line segment, it can be ensured that the second surface does not exceed the side of the first sub-reflecting surface 211 in the first line segment 213, and meanwhile, under the condition of adopting the above technical scheme, as a whole, the combined structure formed by the second sub-reflecting part and the first sub-reflecting part has a tendency of extending from the side of the luminous body 100 to the position close to the luminous body 100 along the second direction, and further under the condition that the number of the sub-reflecting parts 210 arranged in the second direction is more, under the condition that the second surface of any second sub-reflecting part does not receive light, the reflecting piece 200 has the capability and shape of surrounding the luminous body 100 in the second direction, and further, the reflecting piece 200 can be ensured to cover the spatial range of at most 90 degrees on the side of the luminous body 100 in the second direction, so as to provide the light distribution effect for the luminous body 100.

In addition, in the light filling device disclosed in the embodiment of the present application, the number of the reflector 200 and the light source modules may be one or more, and under the condition that the number of the reflector 200 and the light source modules is multiple, the light source modules may be arranged at intervals in a straight line, or may be distributed in other arrangement manners, and the reflector 200 and the light source modules may be arranged in a one-to-one correspondence manner, so as to provide a more comprehensive light filling effect for other devices or users. Accordingly, in the case that the light supplement device includes the reflective lens 310 and the refractive lens 320, the number of the reflective lens and the refractive lens may also correspond to the number of the light source modules.

Optionally, when the number of the light source assemblies is multiple and the light source assemblies are linearly arranged at intervals, the shielding portions 220 adjacent to each other of any two adjacent reflectors 200 in the reflectors 200 corresponding to the light source assemblies can be removed. As shown in fig. 15, taking two light source assemblies and two reflectors 200 as an example, the shielding portion 220 is no longer disposed on one side of the two reflectors 200 adjacent to each other, and the shielding portion 220 is disposed on one side of one of the two reflectors 200 away from the other, so that the two reflectors 200 include two shielding portions 220, and the effective utilization rate of light is further improved.

In addition, the embodiment of the present application further discloses a light supplement device, which includes a light source assembly, a reflector 200 and a reflective lens 310, wherein the light source assembly includes a circuit board and a light emitting body 100, the light emitting body 100 is a diffuse light source, the light emitting body 100 is electrically connected to the circuit board, and the light emitting body 100 and the reflector 200 are both disposed on a first side of the circuit board; the reflecting member 200 is matched with the light emitter 100, the reflecting member 200 includes a plurality of sub-reflecting portions 210, the sub-reflecting portions 210 are connected with each other, each sub-reflecting portion 210 has a sub-reflecting surface 211, each sub-reflecting surface 211 is a diffusion curved surface, and the sub-reflecting surfaces 211 are configured to reflect the light emitted by the light emitter 100 to the sub-reflecting surface 211 and make the reflected light spread to a target area; the reflector 200 has a light outlet, the reflective lens 310 is disposed corresponding to the light outlet, and light emitted from the light emitter 100 to the light outlet is distributed by the reflective lens 310 to be incident on the sub-reflective surface 211 of the reflector 200, and the reflected light is transmitted to a target area. The specific structure and the assembly relationship of each device in the light supplement device disclosed in this embodiment can be set correspondingly with reference to the light supplement device disclosed in the above embodiment, and the text is considered to be concise and will not be repeated here.

Based on the disclosed light filling device of any above-mentioned embodiment, this application embodiment still discloses a security protection equipment, and this security protection equipment is including making a video recording module and any above-mentioned light filling device to correspondingly, for making a video recording the module light filling through the light filling device. Particularly, a plurality of sub-reflecting surfaces 211 in the above-mentioned light filling device can reflect the light that the light source subassembly sent to the target area, for this reason, can make the shooting region of module of making a video recording be the target area promptly to guarantee that the light filling device can provide the light filling effect for the shooting region of the module of making a video recording, guarantee that the light condition of the module of making a video recording is better relatively, promote the shooting effect of the module of shooting.

It should be noted that, in this document, 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. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. The light supplementing device is characterized by comprising a light source assembly and a reflecting piece, wherein the light source assembly is a diffusion light source, the reflecting piece is matched with the light source assembly, the reflecting piece comprises a plurality of sub reflecting parts, the sub reflecting parts are connected with each other, each sub reflecting part is provided with a sub reflecting surface, each sub reflecting surface is a diffusion curved surface, the sub reflecting surfaces are all configured to reflect light rays emitted by the light source assembly, and the reflected light rays are transmitted to a target area.

2. The light supplement device of claim 1, wherein an arc line segment of any sub-reflecting surface cut by a plane satisfies a concave function.

3. A light supplementing device as claimed in claim 2, wherein the light source module includes a circuit board and a light emitting body, the light emitting body is electrically connected to the circuit board, and the light emitting body and the reflector are both disposed at a first side of the circuit board;

the reflecting piece is provided with a light outlet, and the covering angle of the light outlet is larger than or equal to 180 degrees in a first direction around the thickness direction of the circuit board; and in a second direction which surrounds the luminous body and is intersected with the straight line of the thickness direction, the covering angle of the light outlet is greater than or equal to 90 degrees.

4. A light supplement device as claimed in claim 3, further comprising a reflective lens, wherein the reflective lens is disposed corresponding to the light outlet, and light emitted from the light emitter towards the light outlet is distributed by the reflective lens to be incident on the sub-reflective surface of the reflector, and the reflected light is reflected to propagate towards the target area.

5. The light supplement device of claim 4, wherein in the first direction, the plurality of sub-reflecting surfaces of the reflector cover an angle less than or equal to 140 °; in the second direction, the covering angle of the sub-reflecting surfaces of the reflector is equal to 90 °.

6. A light filling device as recited in claim 5, wherein an outer edge of a figure of the reflector lens, which is cut by a plane perpendicular to a center line of the reflector lens, is an arc line segment, and a distance between the arc line segment and the center line gradually decreases along a direction in which an end point of the arc line segment points to a midpoint of the arc line segment.

7. A light supplementing device according to claim 5, wherein the reflector further includes two blocking portions, the sub-reflecting portions are sandwiched between the two blocking portions, and each blocking portion extends in a direction away from the sub-reflecting portion along a direction of a center line of the reflection lens until being flush with or exceeding the light emitting body.

8. A light supplementing device according to claim 3, wherein the plurality of sub-reflecting portions includes a first sub-reflecting portion and a second sub-reflecting portion, the second sub-reflecting portion is located on a side of the first sub-reflecting portion away from the circuit board, a first surface of the first sub-reflecting portion is connected to a second surface of the second sub-reflecting portion, and the second surface is located on a side of a first line segment where the first surface intersects with a first sub-reflecting surface of the first sub-reflecting portion away from the first sub-reflecting surface.

9. A light supplement device according to claim 8, wherein a curvature of a second line segment where the second sub-reflecting surface of the second sub-reflecting portion intersects the second surface is smaller than a curvature of the first line segment, and a middle of the first line segment intersects a middle of the second line segment.

10. The security equipment is characterized by comprising a camera module and the light supplementing device of any one of claims 1 to 9, wherein the camera module is used for shooting a target area.