CN114764207B

CN114764207B - Light supplementing lamp for dome camera and dome camera

Info

Publication number: CN114764207B
Application number: CN202011621582.7A
Authority: CN
Inventors: 梁雪
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-08-25
Anticipated expiration: 2040-12-30
Also published as: CN114764207A

Abstract

The application discloses a light supplementing lamp for a dome camera and the dome camera, and relates to the field of security monitoring. A light supplementing lamp for a dome camera comprises a lamp source; a reflecting device; the light emitting device is used for emitting the light supplementing light source reflected by the reflecting device so as to enable the light supplementing area of the light supplementing lamp to be adapted to the video monitoring area of the hemispherical camera; the reflecting device and the light emitting device are respectively arranged at two sides of the light source, and the reflecting device is arranged opposite to the light source. A dome camera comprises a light supplementing lamp and a lens assembly; a transparent cover which is hemispherical; the light supplementing lamp is arranged on one side of the lens component, and the transparent cover irradiates the light supplementing lamp and the lens component, so that a light supplementing area formed by the light supplementing light source generated by the light supplementing lamp after being emitted through the transparent cover is matched with a video monitoring area of the lens component. The embodiment of the application can solve the problem of poor shooting quality of the conventional dome camera.

Description

Light supplementing lamp for dome camera and dome camera

Technical Field

The application belongs to the technical field of security monitoring, and particularly relates to a light supplementing lamp for a dome camera and the dome camera.

Background

The camera generally adopts a light supplementing mode in low-illumination occasions so as to achieve the purpose of acquiring images in low-illumination situations. In the related art, a lens is surrounded with a light supplement, that is, a plurality of light supplement lamps are surrounded around the lens, and a protective cover or a light-transmitting mirror is arranged in front of the light supplement lamps to secondarily distribute light emitted by the light supplement lamps. However, the position of the light-compensating lamp in the light-compensating mode is limited, so that the light of the light-compensating lamp is easy to be blocked, and the shooting effect of the camera is affected.

Disclosure of Invention

The embodiment of the application aims to provide a light supplementing lamp for a dome camera and the dome camera, which can solve the problem of poor shooting effect of a conventional dome camera.

In order to solve the technical problems, the application is realized as follows:

the embodiment of the application provides a light supplementing lamp for a dome camera, which comprises the following components:

the light source is used for generating a light supplementing light source;

the reflecting device is used for reflecting the light supplementing light source generated by the light source;

the light emitting device is used for emitting the light supplementing light source reflected by the reflecting device so as to enable the light supplementing area of the light supplementing lamp to be adapted to the video monitoring area of the hemispherical camera;

The reflecting device and the light emitting device are respectively arranged at two sides of the light source, and the reflecting device and the light source are oppositely arranged.

Further, the reflecting device and the light emitting device are respectively arranged below and above the light source in the longitudinal direction, the reflecting device is provided with a reflecting surface, the light source is arranged on the light plate, and the reflecting surface is arranged opposite to the surface of the light source on the light plate.

Further, the cross section of the reflecting device in the first direction is arc-shaped, the inner surface of the arc shape is a reflecting surface, and the first direction is parallel to the longitudinal direction.

Further, the light source is longitudinally arranged above the reflecting device, and the arranged position of the light source deviates from the geometric center of the reflecting device.

Further, the inner side surface of the reflecting device is plated with silver.

Further, the reflecting device is provided with a concave space formed by a first surface and a second surface, and an end surface used for connecting the first surface and the second surface, wherein the distance between two sides of the end surface along the second direction is larger than the distance between two sides of the end surface along the third direction;

The second direction and the third direction are perpendicular to the longitudinal direction, and the second direction is perpendicular to the third direction.

Further, in the second direction, the distance between the setting position of the light source and the two sides of the end face is not equal, and in the third direction, the distance between the setting position of the light source and the two sides of the end face is equal.

Further, in the second direction, a ratio M1: M2 of a distance between a setting position of the light source and both sides of the end face is smaller than 1.

Further, the concave space of the reflecting device is oval.

Further, a cross section of the reflecting means in the second direction has a varying curvature, and a cross section of the reflecting means in the third direction has a varying curvature.

The embodiment of the application also provides a dome camera, which comprises:

a light supplementing lamp;

a lens assembly;

a transparent cover having a hemispherical shape;

the light supplementing lamp is arranged on the side part of the lens assembly, and the transparent cover is covered outside the light supplementing lamp and the lens assembly, so that a light supplementing area formed by the light supplementing light source generated by the light supplementing lamp after being emitted by the transparent cover is matched with a video monitoring area of the lens assembly.

Further, the hemispherical camera comprises two groups of light supplementing lamps, a first edge line and a second edge line of the light supplementing light source reflected by the reflecting device and a central axis of the lens assembly form a first included angle and a second included angle respectively, and the first included angle is not equal to the second included angle;

preferably, the first included angle is smaller than the second included angle.

Further, the first included angle is smaller than 5 degrees, and the second included angle is larger than 30 degrees;

preferably, the first included angle is 1.9 ° and the second included angle is 45 °.

Further, the dome camera still includes the lamp shade, first installation hole site has been seted up to the one end of lamp shade, the lens subassembly install in first installation hole site, the regional second installation hole site that is equipped with around the first installation hole site, light emitting device install in the second installation hole site, the lamp source with reflecting device all set up in inside the lamp shade, the light filling light source that the lamp source generated is via the reflecting device after the orientation second installation hole site, and see through in proper order light emitting device with the translucent cover outwards jets out, in order to right the video monitoring area of lens subassembly carries out the light filling.

Further, the light supplementing lamp further comprises a lamp panel for setting the lamp source, the lamp panel is a concave plate, and the outer peripheral surface of the lamp panel is smaller than the inner peripheral surface of the lamp shade, so that the lamp panel can be arranged along the inner peripheral surface of the lamp shade.

Further, the inner side of the lamp shade is provided with a positioning column, the lamp panel is provided with a first positioning hole, the reflecting device is provided with a second positioning hole, and the first positioning hole and the second positioning hole are matched with the positioning column, so that the lamp panel and the reflecting device are mounted on the lamp shade.

Further, be equipped with first through-hole on the lamp plate, be equipped with the second through-hole on the reflecting device, the inboard of lamp shade is equipped with the screw hole, the dome still includes the fastener, the fastener wears to establish in proper order the second through-hole with first through-hole, and with screw hole threaded connection.

Further, the periphery edge of the lamp panel is provided with a protrusion, and the lamp source is arranged on the protrusion.

Further, a notch is formed in the outer side of one end of the lampshade, the notch is arranged around the second mounting hole, the light emitting device is a transparent protective cover, and the protective cover is arranged at the notch and is detachably connected with the lampshade.

Further, the area of the protective cover for transmitting light is larger than or equal to the area of the light supplementing light source emitted by the light supplementing lamp.

Further, the area of the lampshade provided with the notch is larger than the area of the protective cover which transmits light.

Further, the dome camera further comprises a light isolation piece, a first flanging structure is arranged on the outer side of one end of the lampshade, and the light isolation piece is arranged on the outer side of the first flanging structure;

preferably, the light-insulating member is adhered to the outer side of the first flanging structure.

Further, a second flanging structure is arranged on the inner side of one end of the lampshade, and the second flanging structure longitudinally protrudes out of the contact surface of the reflecting device and the lamp panel.

In the embodiment of the application, the reflecting device and the light emitting device are respectively arranged at two sides of the light source, and the reflecting device is arranged opposite to the light source, so that the light supplementing light source generated by the light source irradiates on the reflecting device, the light supplementing light source is reflected by the reflecting device, the light supplementing light source irradiates towards the light emitting device, and the light supplementing light source reflected by the reflecting device is emitted outwards through the light emitting device. Compared with the mode that the light supplementing lamp is arranged around the lens in a surrounding mode in the related art, the light supplementing lamp provided by the embodiment of the application can adjust the irradiation area of the light supplementing light source through the reflecting device and the light emitting device, so that the light supplementing area of the light supplementing lamp is suitable for the video monitoring area of the dome camera, the irradiation area of the adjusted light supplementing light source hardly enters the lens assembly of the dome camera and is not blocked, and the problem that light enters the lens assembly or is blocked to influence the shooting effect is solved.

Drawings

Fig. 1 is a first view of a structure such as a light supplementing lamp according to an embodiment of the present application;

FIG. 2 is a second view of the structure of the light compensating lamp according to the embodiment of the application;

FIG. 3 is a third view of a structure such as a light-compensating lamp according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view taken along line M-M in FIG. 3;

FIG. 5 is a schematic view of a light path emitted by a light compensating lamp on one side of a lens assembly according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a light path emitted by a light compensating lamp disposed at two sides of a lens assembly according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an assembly of a light source, a light panel, a reflector, and a reflective substrate according to an embodiment of the present application;

FIG. 8 is a schematic diagram illustrating an assembly of a light source and a light panel according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a reflective device and a reflective substrate according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a reflecting device and a light source according to an embodiment of the present application;

FIG. 11 is a schematic cross-sectional view taken along line N-N of FIG. 10;

FIG. 12 is a schematic cross-sectional view taken along S-S in FIG. 10;

fig. 13 is a schematic diagram of an assembly of a lampshade and a light emitting assembly according to an embodiment of the present application;

FIG. 14 is a schematic diagram of a light emitting assembly according to an embodiment of the present disclosure;

Fig. 15 is a schematic view of a lamp shade, a light supplementing lamp, a light emitting assembly and a front end assembly disassembled according to an embodiment of the present application;

FIG. 16 is a schematic partial cross-sectional view of a dome camera according to an embodiment of the present application;

fig. 17 is a schematic view of a dome camera (with the transparent cover removed) according to an embodiment of the present application.

Reference numerals illustrate:

100-a lamp source assembly; 110-a light source; 120-lamp panel; 121-a first positioning hole; 122-a first via; 123-bump;

200-a reflective assembly; 210-reflecting means; 211-a first surface; 212-a second surface; 213-end face; 214-a concave space; 220-a reflective substrate; 221-a second positioning hole; 222-a second through hole;

300-light emitting component; 310-light emitting device; 320-clamping hooks;

400-lens assembly;

500-transparent cover;

600-lamp shade; 610-a first mounting hole site; 620-a second mounting hole site; 630-positioning columns; 640-threaded holes; 650-notch; 660-limit part; 670-a first flanging structure; 680-a second flange structure;

700-fasteners;

800-light-insulating member;

900-front end assembly;

1000-ball seat;

an alpha-first included angle; beta-second included angle.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The wearable device provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

As shown in fig. 1 to 17, an embodiment of the present application discloses a light supplementing lamp for a dome camera, which includes a light source 110, a reflecting device 210 and a light emitting device 310.

The light source 110 is used for generating a light source for light supplement, and specifically, the light source for light supplement generated by the light source 110 may be a 3000K or 5700K light source for light supplement. In a specific embodiment, the light source 110 may be a light bulb, the light source 110 may be disposed on one side of the light plate 120, the light plate 120 is a circuit board, the light plate 120 is electrically connected with the light source 110, the light source 110 is powered by the light plate 120, and the light source 110 is mechanically connected to the light plate 120, and the light source 110 is fixed on other components by the light plate 120 to limit the position of the light source 110, so as to ensure that the light source 110 and the reflecting device 210 are kept relatively disposed.

The reflecting device 210 is used for reflecting the light source for light supplement generated by the light source 110. Specifically, the reflecting device 210 is disposed opposite to the light source 110, so that the light source for light supplement generated by the light source 110 irradiates the surface of the reflecting device 210 and then reflects the light source through the surface of the reflecting device 210, so as to change the irradiation direction of the light source for light supplement. In a specific embodiment, the reflecting device 210 is disposed on the reflecting substrate 220, and the reflecting device 210 is fixed on other components through the reflecting substrate 220, so as to limit the position of the reflecting device 210, so that the reflecting device 210 is disposed opposite to the light source 110. Meanwhile, the reflection means 210 is formed with a smooth surface, i.e., a reflection surface, by which the light-compensating light source is reflected.

The light emitting device 310 is used for emitting the light supplement source reflected by the reflecting device 210. Specifically, the light emitting device 310 is disposed at a side of the light source 110 away from the reflecting device 210, and the light emitting device 310 is a transparent member and is fixed on other members, so that the light supplementing light source reflected by the reflecting device 210 is emitted outwards through the light emitting device 310. In a specific embodiment, the light emitting device 310 may be a transparent cover, a housing, or the like, and the light emitting device 310 is covered outside the reflecting device 210 and the light source 110, so that on one hand, external dust, impurities, rainwater, or the like can be prevented from contacting the reflecting device 210 or the light source 110, and on the other hand, an operator can be prevented from touching the reflecting device 210 or the light source 110 to affect the light supplementing effect of the light supplementing lamp or cause danger when repairing or maintaining the dome camera.

In some alternative embodiments, the light supplement lamp is used as a light emitting component of the dome camera, and the light supplement lamp can provide a light supplement source for the lens assembly 400 of the dome camera, so as to ensure that the lens assembly 400 can still shoot high-quality images in a low-illumination environment.

The principle of light filling in the embodiment of the application is as follows: after the dome camera is started, the light source 110 generates a light supplementing light source and irradiates the surface of the reflecting device 210 opposite to the light supplementing light source, the irradiation direction of the light supplementing light source is changed through the reflection effect of the surface of the reflecting device 210, the light supplementing light source irradiates towards the light emitting device 310, the light supplementing light source is emitted outwards through the light emitting device 310, so that a light supplementing area is formed at a position close to the lens assembly 400, and the light supplementing area is suitable for a video monitoring area of the dome camera, namely, the monitoring area of the lens assembly 400 is supplemented with light, so that the lens assembly 400 can be guaranteed to normally shoot even in a low-illumination environment.

Compared with the mode that the light source is arranged around the lens in a surrounding manner and directly emits light in the related art, the reflection effect of the light supplementing light source is achieved through the reflection device 210 in the embodiment of the application, so that the irradiation range of the light supplementing light source is adjusted, the light supplementing area of the light supplementing light source is adapted to the video monitoring area of the hemispherical camera, and the light is not shielded, so that the problem that the shooting effect is influenced due to the fact that the light supplementing light source enters the lens or is shielded is solved.

In some alternative embodiments, the reflecting means 210 and the light emitting means 310 are disposed longitudinally on both sides of the light source 110, respectively. Referring to fig. 4, in a specific embodiment, the reflecting device 210 is disposed below the light source 110 in a longitudinal direction (i.e., up-down direction in fig. 4). In order to fixedly mount the lamp 110, the lamp 110 is disposed on the lower side of the lamp panel 120, and the lamp panel 120 is fixed to other members such as a lamp housing. Meanwhile, the reflecting device 210 is formed on the reflecting substrate 220, the reflecting substrate 220 is fixed on other components such as a lamp housing, etc., the reflecting device 210 has a reflecting surface, and after the lamp panel 120 and the reflecting substrate 220 are both fixed, the lamp source 110 is disposed opposite to the reflecting surface of the reflecting device 210, so that the light source for supplementing light generated by the lamp source 110 can be reflected by reflection. In addition, in the longitudinal direction, the light emitting device 310 is disposed above the light source 110, and the light emitting device 310 may receive the light supplement source reflected by the reflecting surface, so that the light supplement source is emitted outwards after passing through the light emitting device 310. It should be noted that, in some cases, when the dome camera is normally installed, the light emitting device 310 is located below the light source 110, and the reflecting device 210 is located above the light source 110, and of course, the relative positional relationship among the light emitting device 310, the light source 110 and the reflecting device 210 may be determined according to the specific installation situation of the dome camera, which is not limited in the embodiments of the present application.

In some alternative embodiments, the cross-section of the reflecting device 210 in the first direction (i.e. the longitudinal direction) is arc-shaped, wherein the first direction is parallel to the longitudinal direction, please continue to see fig. 4, the reflecting device 210 is in a concave structure as a whole, the inner side surface of the concave structure is a reflecting surface, and the light source 110 is disposed opposite to the inner side surface of the concave structure, so that when the light source for supplementing light generated by the light source 110 irradiates on the reflecting surface, the reflecting angle is affected by the size of the reflecting surface and the relative position of the reflecting surface and the light source 110. Under the action of the arc-shaped reflecting surface, the light supplementing light sources generated by the light source 110 all irradiate towards the light emitting device 310 and are emitted outwards through the light emitting device 310, so that the light supplementing area generated by the light supplementing lamp is ensured to be suitable for the video monitoring area of the dome camera.

In a specific embodiment, the light source 110 is disposed above the emitting device in the longitudinal direction, and the disposed position of the light source 110 is deviated from the geometric center of the reflecting device 210, so that the light source of the light supplement reflected by the reflecting device 310 is emitted outwards by the light emitting device 310, and the light supplement area generated by the light supplement lamp is ensured to be suitable for the video monitoring area of the dome camera.

In a specific embodiment, the inner side surface of the reflecting device 210 is silver-plated, so that the inner side surface of the reflecting device 210 has a better reflecting effect, so as to alleviate the weakening effect on the light supplementing source. It should be noted that, the inner surface of the reflecting device 210 may be regarded as a reflecting surface, and the silver plating makes the reflecting effect of the reflecting surface better, so as to ensure a good reflecting effect of the reflecting surface on the light source.

Referring to fig. 8 to 12, in some alternative embodiments, the reflecting device 210 includes a first surface 211, a second surface 212, and an end surface 213, where the first surface 211 and the second surface 212 form a concave space 214, and the first surface 211 and the second surface 212 are connected by the end surface 213. Specifically, the second surface 212 faces away from the first surface 211, the first surface 211 and the second surface 212 are both arc-shaped in the longitudinal direction, the first surface 211 is located at the inner side, the second surface 212 is located at the outer side, the concave space 214 is formed on one side of the first surface 211 facing away from the second surface 212, the inner surface of the concave space 214 or the first surface 211 can be regarded as a reflecting surface, the light source 110 is disposed on one side of the concave space 214 and is opposite to the inner surface of the concave space 214, so that the light source for light supplement generated by the light source 110 irradiates the inner surface of the concave space and is reflected here.

With continued reference to fig. 10, in a specific embodiment, the distance between the two sides of the end face 213 in the second direction is greater than the distance between the two sides of the end face 213 in the third direction, that is, the length of the concave space 214 in the second direction is greater than the length of the concave space 214 in the third direction, so that the concave space 214 is in a long concave shape or an elliptical shape. Thus, the long axis direction of the reflecting device 210 is the second direction, the short axis direction is the third direction, the depth direction of the concave space 214 is the first direction, and the first direction, the second direction and the third direction are perpendicular to each other.

Further, in the second direction, the distance between the setting position of the light source 110 and the two sides of the end face 213 is not equal, and optionally, the light source 110 is biased to one side (i.e. the left side in fig. 10) of the end face 213 along the second direction, so that the reflected light on the first surface 211 at two sides of the light source 110 is asymmetric, so as to meet the actual setting requirement of the relative position between the light compensating lamp and the lens assembly 400 in the second direction. Further, referring to fig. 10, the ratio m1:m2 of the setting position of the light source 110 to the distance between the two sides of the end face 213 is smaller than 1. Similarly, in the third direction, the distance between the setting position of the light source 110 and the two sides of the end face 213 is equal, and specifically, the light source 110 is located at the middle position along the third direction, so that the reflected light rays located at the two sides of the light source 110 on the first surface 211 are symmetrical, so as to meet the actual setting requirement of the relative position between the light compensating lamp and the lens assembly 400 in the third direction.

In a specific embodiment, the concave space 214 of the reflecting device 210 has an oval shape, and referring to fig. 8 to 10, the minor axis P of the concave space 214 is 11.2mm long, the major axis Q is 12.5mm long, the center of the light source 110 is located on the minor axis centerline of the concave space 214, and the ratio of the center of the light source 110 to the distance between two sides of the end face 213 along the major axis direction is m1:m2, specifically, m1:m2=4.4:8.1, where the light emitting surface and the reflecting surface of the light source 110 almost coincide.

In a specific embodiment, the cross section of the reflecting device 210 in the second direction has a varying curvature, and the cross section in the third direction has a varying curvature, so that the overall structural property of the reflecting device 210 is ensured to a certain extent based on this arrangement, and at the same time, the manufacturing of the entire reflecting device 210 is facilitated.

The embodiment of the application discloses a dome camera, which comprises: a light supplementing lamp, a lens assembly 400 and a transparent cover 500.

The light supplementing lamp is used as a luminous component of the dome camera and is used for providing a light supplementing light source. Specifically, the light supplementing lamp may include a light source assembly 100, a reflection assembly 200 and a light emitting assembly 300, wherein the light source assembly 100 includes a light source 110 and a light plate 120, the light source 110 is disposed on one side of the light plate 120, and the light plate 120 may be a circuit board, which can provide a power source for the light source 110 on one hand and provide a mounting base for the light source 110 on the other hand. The reflection assembly 200 includes a reflection device 210 and a reflection substrate 220, wherein the reflection device 210 is disposed on the reflection substrate 220, and specifically, the reflection device 210 may be integrally disposed with the reflection substrate 220, or the reflection device 210 may be fixed on the reflection substrate 220, and the reflection device 210 may be fixed by the reflection substrate 220 so that the reflection device 210 is disposed opposite to the light source 110. The light emitting assembly 300 includes a transparent light emitting device 310 and a hook 320 disposed on the light emitting device 310, where the light emitting device 310 is a protective cover, and the protective cover is covered on the outer sides of the reflecting device 210 and the light source 110, so that on one hand, external dust, impurities and the like are prevented from adhering to the surface of the reflecting device 210 or the light source 110 to affect the light supplementing effect, and on the other hand, operators can be prevented from touching the reflecting device 210 or the light source 110 to affect the light supplementing effect or generate danger.

The lens assembly 400 serves as a core member of the dome camera for photographing, etc., an external environment to collect information in the external environment.

The transparent cover 500 is used as a protection member of the dome camera, the transparent cover 500 is in a hemispherical shape, and covers the outer sides of structural members such as the lens assembly 400 and the light supplementing lamp, so that dust, impurities, rainwater and the like in the external environment can be prevented from entering the dome camera, the dome camera is prevented from being influenced by the dust, impurities and rainwater in the external environment to a certain extent, and the high-quality photographing and shooting functions of the dome camera are guaranteed.

In the embodiment of the application, the specific working principle of the dome camera is as follows:

the light source 110 of the light compensating lamp generates a light compensating light source and irradiates towards the reflecting device 210, the light compensating light source reflected by the reflecting device 210 changes the original direction and irradiates towards the light emitting device 310, the light compensating light source is emitted to the outside through the transparent cover 500 after passing through the light emitting device 310, so that a light compensating area is formed around the lens assembly 400, the light compensating area is matched with a video monitoring area of the lens assembly 400, and further good illuminance of the video monitoring area of the lens assembly 400 can be ensured, so that shooting quality is improved.

Compared with the mode that a plurality of light supplementing lamps surround the periphery of the lens and the light supplementing lamps are used for supplementing light to the lens, in the embodiment of the application, the light supplementing light source generated by the light source 110 is reflected by the reflecting device 210, and the reflected light supplementing light source is emitted to the direction of the transparent cover 500 by the light emitting device 310, at the moment, the adjusted light supplementing light source almost does not enter the lens assembly 400 and is not blocked, so that the problem that the quality of a shot image is influenced due to the fact that light enters the lens assembly 400 or is blocked is effectively solved, and the shooting effect is ensured to a certain extent.

Referring to fig. 1 and 3, in some alternative embodiments, the dome camera includes two sets of light compensating lamps, and the positions of the two sets of light compensating lamps relative to the lens assembly 400 may be determined according to practical situations, for example, when a 4mm focal length camera is taken as an example, the field angle of view of the lens is 90 °, where the included angle between the line between the geometric center of the respective reflecting device 210 of the two sets of light compensating lamps and the optical axis of the lens assembly 400 is 90 °, and the reflecting devices 210 of the two sets of light compensating lamps are symmetrical with respect to the optical axis of the lens assembly 400. Because a certain rotation and pitching range exists in the ball cover of the ball head, based on the arrangement, the influence of the ball seat 1000 on light rays during pitching of the ball head can be avoided to the greatest extent.

In order to avoid the defect of light spot superposition, the design is designed such that the first edge line of the light beam emitted by each group of light supplement lamps deflects a first angle α relative to the central axis of the lens assembly 400 toward the lens assembly 400, and the second edge line deflects a second angle β relative to the central axis of the lens assembly 400 toward a direction away from the lens assembly 400, wherein the first angle α is smaller than the second angle β, and refer to fig. 5 and fig. 6. Based on this setting, can make the light filling light source concatenation that the light filling lamp launched form whole light filling region, and then can guarantee the light filling region of light filling lamp and the video monitoring regional looks adaptation of lens subassembly 400.

In a specific embodiment, the angle range of the first included angle α is not greater than 5 °, specifically including 0.5 °, 1 °, 1.5 °, 1.9 °, 2.2 °, 2.7 °, 3.5 °, 4.2 °, 5 °, and other degrees, and in addition, in an embodiment of the present application, the first included angle α may be 1.9 °. The degree range of the second included angle beta is not less than 30 degrees, and the method specifically comprises the following steps: 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, and the like, and other degrees may be included, in addition, in an embodiment of the present application, the second included angle β may be 45 °. Based on the arrangement, through two groups of light filling lamps that bilateral symmetry set up for the light filling light source that sends respectively can splice into a complete visual field light filling region, thereby can avoid appearing facula superimposed defect.

In the embodiment of the present application, in order to fixedly install the structural members such as the light source 110, the reflecting device 210, the light emitting device 310, etc., the dome camera further includes a lampshade 600. Referring to fig. 1 to 4, a first mounting hole 610 is formed at one end of the lamp shade 600, specifically, a protruding structure is disposed in the middle of one end of the lamp shade 600, and a hole is formed on the protruding structure to form the first mounting hole 610, the tail end of the lens assembly 400 is inserted into the first mounting hole 610 and is fixed, and the front end of the lens assembly 400 faces the outer side of the lamp shade 600, so that the lens assembly 400 is fixedly mounted through the lamp shade 600. Meanwhile, a second mounting hole 620 is further formed at one end of the lampshade 600, the second mounting hole 620 is disposed in a surrounding area of the first mounting hole 610, the second mounting hole 620 is opposite to a light emitting direction of the light compensating lamp, and the light emitting device 310 is specifically mounted at the second mounting hole 620, so that the light compensating light source reflected by the reflecting device 210 irradiates towards the direction of the second mounting hole 620, and then sequentially passes through the light emitting device 310 and the transparent cover 500 to be emitted outwards, thereby realizing light compensating for a video monitoring area of the lens assembly 400. Optionally, one, two or more second mounting holes 620 may be formed on one end of the lampshade 600, and the specific number may be determined according to the number of the light compensating lamps, and in this embodiment, two second mounting holes 620 are formed to be suitable for two groups of light compensating lamps.

In a specific embodiment, a notch 650 is disposed on the outer side of one end of the lampshade 600, and the notch 650 is disposed around the second mounting hole 620, that is, a notch 650 is formed by recessing at the outer end of the second mounting hole 620, and the light emitting device 310 may be partially embedded in the notch 650 to achieve assembly. Specifically, the light emitting device 310 is a transparent protective cover, and when the protective cover is installed, the protective cover is embedded into the notch 650, so that the protective cover is prevented from protruding outwards to affect the appearance or light emission. In order to fix the protective cover on the lampshade 600, a plurality of hooks 320 extending inwards are arranged on the protective cover, openings of the hooks 320 are respectively away from the protective cover, correspondingly, limiting portions 660 are arranged on the inner side of the lampshade 600 and around the area of the second mounting hole 620, the hooks 320 and the limiting portions 660 form a clamping structure together, and the connection between the light device 310 and the lampshade 600 is realized through the clamping structure, so that the light emitting device 310 can be conveniently detached. When the protective cover is mounted, the hook 320 extends into the lamp shade 600 through the second mounting hole 620, and then the protective cover is pressed hard to embed the protective cover into the notch 650, and at this time, the hook 320 is correspondingly hooked on the limiting portion 660, so that the protective cover is mounted on the lamp shade 600. Based on the setting of breach 650, be favorable to outwards penetrating through the light filling light source that reflection facility 210 reflected, and the setting of protecting cover can cover reflection facility 210 and lamp source 110 to avoid outside dust, impurity, rainwater to get into inside the dome camera, avoid the user to touch lamp plate 120 or reflection facility 210 and cause damage or danger when adjusting the dome camera simultaneously by hand.

In order to prevent the shielding cover from interfering the light-compensating light source emitted outwards, the shielding cover is optionally made of a high-light transparent material, so as to reduce the influence of displacement change of the light-compensating light source caused by refraction in the shielding cover on the emitting direction of the light-compensating light source. In a specific embodiment, the thickness of the light-transmitting region of the protective cover is relatively uniform, i.e., the curved surfaces of the inner surface and the outer surface are parallel to each other, so as to ensure that the light does not undergo an angle change when transmitted through the protective cover.

Further, the light transmission area of the protective cover is not smaller than the area of the light supplementing light source emitted by the light supplementing lamp, so that the light supplementing light source is not blocked by other light-tight structures. In addition, the area of the notch 650 of the lampshade 600 is larger than the area of the protective cover, which transmits light, so that the protective cover is convenient to assemble.

Referring to fig. 4, 7 and 8, in some alternative embodiments, the light compensating lamp further includes a lamp panel 120, the lamp source 110 is disposed on one side of the lamp panel 120, and the lamp panel 120 may be used to fix the lamp source 110 and may further supply power to the lamp source 110. In order to fixedly mount the light panel 120, the light panel 120 is designed to have a concave structure in the embodiment of the present application, and may be regarded as a U-shaped structure or a partial ring structure. Specifically, an avoidance space is formed on the inner side of the lamp panel 120, and the lens assembly 400 can pass through the avoidance space; the lamp shade 600 may be designed as a cylindrical structure, the inner circumferential surface of the lamp shade 600 is arc-shaped, the outer circumferential surface of the lamp panel 120 is also arc-shaped, and the arc-shaped size of the outer circumferential surface of the lamp panel 120 is smaller than the arc-shaped size of the inner circumferential surface of the lamp shade 600, so that the lamp panel 120 may be accommodated inside the lamp shade 600. In the embodiment of the application, since the back irradiation mode is adopted, the light source 110 cannot have too many shielding objects to avoid influencing the light emitting efficiency, the light type is changed, the light shielding, fixing, heat dissipation and other factors are comprehensively considered, the light plate 120 is designed into a strip-shaped plate with the width of 4mm, and the strip-shaped plate encloses a concave shape, a U shape or a partial annular shape so as to meet the practical requirements.

With continued reference to fig. 8, in order to implement the installation of the light source 110, in a specific embodiment, the protrusions 123 are disposed at the outer edge of the concave light panel 120, and according to the number of the light supplement lamps, a corresponding number of the protrusions 123 may be disposed, and the light source 110 is disposed on the side surface of the protrusions 123. Specifically, the light source 110 is welded on the protrusion 123, and the package size of the light source 110 is 3030, and ensures a margin of more than 0.5mm on a single side.

Referring to fig. 7, 8 and 13, in order to realize the fixed installation of the lamp panel 120, in the embodiment of the application, a positioning column 630 is disposed at the inner side of one end of the lamp shade 600, and a first positioning hole 121 is correspondingly formed in the lamp panel 120, when the lamp panel 120 is installed inside the lamp shade 600, the side surface of the lamp panel 120 is attached to the wall surface of one end of the lamp shade 600, and the positioning column 630 is inserted into the first positioning hole 121, so that the lamp panel 120 can be positioned by the positioning column 630, thereby facilitating the installation of the lamp panel 120, and of course, the positioning column 630 can also limit the lamp panel 120 to move along the radial direction of the positioning column 630 relative to the lamp shade 600 to a certain extent, thereby playing a certain limiting role. In a specific embodiment, two first positioning holes 121 are provided, two corresponding positioning columns 630 are provided, one of the first positioning holes 121 is a circular hole, and the other first positioning hole 121 is a long hole, so that when the two positioning columns 630 respectively penetrate into the two first positioning holes 121, the positioning columns 630 can be finely adjusted in the long holes, thereby not only ensuring the positioning of the lamp panel 120, but also increasing the fault tolerance of the assembly between the lamp panel 120 and the lampshade 600.

Meanwhile, in order to achieve the fixed installation of the reflecting device 210, in the embodiment of the present application, a second positioning hole 221 is formed in the reflecting device 210, and referring to fig. 9 and 13, the reflecting device 210 is disposed on the reflecting substrate 220, and the second positioning hole 221 may be formed on the reflecting substrate 220. When the reflecting device 210 is mounted inside the lampshade 600, the side surface of the reflecting substrate 220 is attached to the wall surface at one end of the lampshade 600, and the positioning column 630 is inserted into the second positioning hole 221, so that the positioning column 630 can position the reflecting device 210 to facilitate the mounting of the reflecting device 210, and of course, the positioning column 630 can also limit the reflecting device 210 to move along the radial direction of the positioning column 630 relative to the lampshade 600 to a certain extent, thereby playing a certain limiting role. In a specific embodiment, two second positioning holes 221 are provided, two corresponding positioning columns 630 are provided, one of the second positioning holes 221 is a circular hole, and the other second positioning hole 221 is a long hole, so that when the two positioning columns 630 respectively penetrate into the two second positioning holes 221 correspondingly, the positioning columns 630 can be finely adjusted in the long holes, thereby not only ensuring the positioning of the reflecting device 210, but also increasing the fault tolerance of the assembly between the reflecting device 210 and the lampshade 600.

Based on the above arrangement, in order to save installation space and make the installation between each component in the lamp shade 600 more compact, in a specific embodiment, the lamp panel 120 is attached to the end face of one end of the lamp shade 600, the light reflecting device is attached to the lamp panel 120, and the lamp panel 120 and the light reflecting device share the positioning column 630, thereby, the positioning and limiting actions of the lamp panel 120 and the light reflecting device can be simultaneously realized through the positioning column 630.

Further, in order to fix the lamp panel 120 and the reflecting device 210 inside the lamp housing 600, in a specific embodiment, the lamp panel 120 is provided with a first through hole 122, the reflecting substrate 220 of the reflecting device 210 is provided with a second through hole 222, and meanwhile, a threaded hole 640 is provided inside one end of the lamp housing 600. When the first positioning hole 121 of the lamp panel 120 and the second positioning hole 221 of the reflecting device 210 are matched with the positioning post 630, the axes of the first through hole 122, the second through hole 222 and the threaded hole 640 are collinear, so that the fastener 700 sequentially penetrates into the second through hole 222, the first through hole 122 and the threaded hole 640, and the fastener 700 has a threaded end, and the threaded end is matched with the threaded hole 640, so that the lamp panel 120 and the reflecting device 210 are fixed inside the lamp shade 600 through the fastener 700, as shown in fig. 2.

In some alternative embodiments, a first flange structure 670 is provided on an outer side of one end of the lamp shade 600, and a light blocking member 800 is provided on an outer side of the first flange structure 670. Specifically, the light barrier 800 may be foam or silica gel. The light-insulating member 800 is sleeved on the periphery of the first flanging structure 670, and the light-insulating member 800 is adhered to the first flanging structure 670, specifically, the light-insulating member can be adhered by double-sided adhesive tape. The light-compensating light source emitted from the light-compensating lamp can be separated from the lens assembly 400 by the light-isolating member 800, so as to prevent the light-compensating light source from entering the lens assembly 400 to affect the shooting effect, as can be seen in fig. 16.

With continued reference to fig. 16, in some alternative embodiments, a second flange 680 is disposed inside one end of the lamp housing 600, and the second flange 680 protrudes from the contact surface between the reflector 210 and the lamp panel 120 in a longitudinal direction. Specifically, since the reflecting device 210 and the light panel 120 are attached to each other, when a gap appears due to the loose attachment between the two, the light source for light supplement generated by the light source 110 is transmitted through the gap and enters the lens assembly 400. Based on this, the second flange 680 can block the gap between the reflecting device 210 and the lamp panel 120, so as to effectively prevent the light compensating light source from entering the lens assembly 400 to affect the shooting effect. In addition, by providing the second flange structure 680, the arrangement of the light-insulating member 800 such as foam and silica gel can be replaced, thereby effectively saving the cost.

Referring to fig. 15 to 17, a sheet metal part is fixedly installed inside the lampshade 600, the front end assembly 900 is fixedly installed on the sheet metal part through screws, the lampshade 600 is fixed on the ball seat 1000, and the lampshade 600 can move relative to the ball seat 1000 to adjust the shooting angle of the lens assembly 400. The specific structure and operation of the components of the front end assembly 900 and the ball seat 1000 may be referred to in the related art, and will not be described in detail herein.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A light filling lamp for a dome camera for filling light into a lens assembly (400) of the dome camera, comprising:

a light source (110) for generating a light-supplementing light source;

The reflection device (210) is used for reflecting the light supplementing light source generated by the light source (110), the reflection device (210) is provided with a reflection surface, the reflection surface is an inner concave surface, and the reflection surface has a curvature which changes in the second direction;

in the second direction, the center of the light source (110) is deviated from the geometric center point of the reflecting surface and is positioned at one side close to the lens assembly (400); wherein the second direction is a long axis direction of the reflecting device (210);

a light emitting device (310) for emitting the light supplementing light source reflected by the reflecting device (210) so as to adapt the light supplementing area of the light supplementing lamp to the video monitoring area of the hemispherical camera;

the reflecting device (210) and the light emitting device (310) are respectively arranged at two sides of the light source (110), and the reflecting device (210) and the light source (110) are oppositely arranged.

2. The light supplementing lamp for a dome camera according to claim 1, wherein the reflecting device (210) and the light emitting device (310) are respectively arranged below and above the light source (110) along a longitudinal direction, the light source (110) is arranged on a light plate (120), and the reflecting surface is arranged opposite to a surface of the light plate (120) where the light source (110) is located.

3. A light filling lamp for a dome camera according to claim 1, characterized in that the reflecting means (210) has an arc-shaped cross section in a first direction, the arc-shaped inner surface being a reflecting surface, the first direction being parallel to the longitudinal direction.

4. A light filling lamp for a dome camera according to claim 2, characterized in that the light source (110) is arranged longitudinally above the reflecting means (210).

5. A light filling lamp for a dome camera according to claim 1, characterized in that the inner side surface of the reflecting means (210) is silvery-plated.

6. A light filling lamp for a dome camera according to claim 1, characterized in that the reflecting means (210) has a concave space (214) constituted by a first surface (211) and a second surface (212), and an end surface (213) for connecting the first surface (211) and the second surface (212), the distance between both sides of the end surface (213) in the second direction being larger than the distance between both sides of the end surface (213) in a third direction, wherein the third direction is the short axis direction of the reflecting means (210);

7. The light-supplementing lamp for a dome camera according to claim 6, wherein in the second direction, the setting position of the lamp source (110) is not equal to the distance between both sides of the end face (213), and in the third direction, the setting position of the lamp source (110) is equal to the distance between both sides of the end face (213).

8. The light-supplementing lamp for a dome camera according to claim 7, wherein a ratio m1:m2 of a distance between a set position of the lamp source (110) and both sides of the end face (213) in the second direction is smaller than 1.

9. A light filling lamp for a dome camera according to claim 6, characterized in that the concave space (214) of the reflecting means (210) is oval.

10. A light filling lamp for a dome camera according to claim 6, characterized in that the cross section of the reflecting means (210) in the third direction has a varying curvature.

11. A dome camera, comprising:

A lens assembly (400);

a light filling lamp for a dome camera, the light filling lamp comprising:

a light source (110) for generating a light-supplementing light source;

the reflecting device (210) is used for directly reflecting the light supplementing light source generated by the light source (110);

the reflection device (210) and the light emitting device (310) are respectively arranged at two sides of the light source (110), and the reflection device (210) and the light source (110) are arranged opposite to each other, wherein the light emitting device (310), the light source (110) and the reflection device (210) sequentially extend along the axial direction of the hemispherical camera, and the axial direction is the longitudinal direction; wherein the reflecting means (210) has a reflecting surface, in the axially defined direction, a projection of the center of the light source (110) being offset from a projection of a center point of a length of the reflecting surface, wherein the center of the light source (110) is near one side of the lens assembly (400);

a transparent cover (500), the transparent cover (500) having a hemispherical shape;

The light supplementing lamp is arranged on the side part of the lens assembly (400), and the transparent cover (500) is covered outside the light supplementing lamp and the lens assembly (400), so that a light supplementing area formed by the light supplementing light source generated by the light supplementing lamp after being emitted by the transparent cover (500) is matched with a video monitoring area of the lens assembly (400).

12. The dome camera according to claim 11, wherein the dome camera includes two sets of the light-compensating lamps, and the first edge line and the second edge line of the light-compensating light source after being reflected by the reflecting device (210) and the central axis of the lens assembly (400) form a first included angle (α) and a second included angle (β), respectively, and the first included angle (α) is not equal to the second included angle (β).

13. The dome camera according to claim 12, characterized in that the first angle (α) is smaller than 5 ° and the second angle (β) is larger than 30 °.

14. The dome camera of claim 11, wherein a first mounting hole (610) is formed at one end of a lampshade (600) of the dome camera, the lens assembly (400) is mounted on the first mounting hole (610), a second mounting hole (620) is formed in a surrounding area of the first mounting hole (610), the light emitting device (310) is mounted on the second mounting hole (620), the light source (110) and the reflecting device (210) are both arranged in the lampshade (600), and a light supplementing light source generated by the light source (110) is emitted to the second mounting hole (620) through the reflecting device (210) and sequentially emitted outwards through the light emitting device (310) and the transparent cover (500) so as to supplement light to a video monitoring area of the lens assembly (400).

15. The dome camera according to claim 14, wherein a notch (650) is provided on an outer side of one end of the lamp housing (600), the notch (650) is disposed around the second mounting hole (620), the light emitting device (310) is a transparent protective cover, and the protective cover is disposed at the notch (650) and is detachably connected to the lamp housing (600).