Light supplementing device and image acquisition system

Abstract

The utility model discloses a light supplementing device which comprises one or more light supplementing terminals, a plurality of light supplementing units capable of supplementing light to a target area are integrated on the light supplementing terminals, and the light supplementing units with overlapped light supplementing areas are arranged on the light supplementing terminals. According to the light supplementing device provided by the utility model, a plurality of light sources (light supplementing units) are integrated together, and the light intensities of the adjacent light sources are superposed, so that the power configuration of a single light source (light supplementing unit) is reduced, heat dissipation is facilitated, and the service life is prolonged; through differentiated configuration of a plurality of light sources (light supplementing units), the light supplementing intensities of different positions in the light supplementing area tend to be consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of fill light and image acquisition, and in particular to a fill light device and an image acquisition system. Background Art

[0002] Infrared light or visible light can be used for fill-in lighting when collecting faces at night. Infrared light illuminates the face and is not easily detected, providing a good user experience. Existing fill-in lighting equipment uses a single light source, but the area that needs fill-in lighting is a divergent area. The single light source that meets the regional fill-in lighting requirement has too high power and a short service life. In addition, the distance between the fill-in light area and the light source varies, making it easy to be exposed if it is close and insufficient light intensity if it is far away. These factors are not conducive to face collection and need to be improved urgently. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a fill light device, including one or more fill light terminals, which are integrated with multiple fill light units that can fill light the target area, and the fill light terminal has fill light units with overlapping fill light areas.

[0004] The M first fill light units and the N second fill light units among all the fill light units on the fill light device are configured differently, so that the difference between the fill light intensity of the M first fill light units in the first area and the fill light intensity of the N second fill light units in the second area is less than a preset value, the distances between the first area and the second area and the fill light device are not equal, and M and N are natural numbers greater than or equal to 1.

[0005] The first fill light unit is integrated on the first fill light terminal, and the second fill light unit is integrated on the second fill light terminal. The differentiated configuration between the M first fill light units and the N second fill light units is specifically as follows: the first fill light unit and the second fill light unit have different fill light wavelength configurations, and / or, the first fill light unit and the second fill light unit have different spacing configurations, and / or, the first fill light unit and the second fill light unit have different beam angle configurations.

[0006] The boundaries of the first area and the second area coincide with each other.

[0007] The boundary overlap between the first area and the second area specifically means that the fill light provided to the target area by one or more adjacent first fill light units and one or more adjacent second fill light units partially overlaps.

[0008] The first fill light unit and the second fill light unit are integrated on the third fill light device. The differentiated configuration between the M first fill light units and the N second fill light units is specifically: the first fill light unit and the second fill light unit have different fill light wavelength configurations, and / or, the first fill light units and the second fill light units have different spacing configurations, and / or, the first fill light unit and the second fill light unit have different beam angle configurations.

[0009] An image acquisition system includes: an image acquisition terminal for acquiring images of a target area; and a fill light device.

[0010] The fill light unit uses infrared light for fill light.

[0011] In the present invention, the fill light device proposed integrates multiple light sources (fill light units) together, and the light intensities of adjacent light sources are superimposed, thereby reducing the power configuration of a single light source (fill light unit), facilitating heat dissipation, and improving service life; through differentiated configuration of multiple light sources (fill light units), the fill light intensity at different positions in the fill light area is achieved to be consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of an embodiment of the fill light device proposed in the present invention;

[0013] Figure 2 This is a schematic diagram of the fill light effect formed by the fill light device proposed in the present invention in the target area;

[0014] Figure 3 This is a schematic diagram of the overall structure of an image acquisition system proposed by the utility model. DETAILED DESCRIPTION

[0015] To solve the problems existing in the background technology, the present invention proposes a fill light device, including one or more fill light terminals, which are integrated with multiple fill light units that can fill light the target area, and the fill light terminal has fill light units with overlapping fill light areas.

[0016] refer to Figure 1 , lists the partially continuous fill light units in two adjacent rows, one of which includes: fill light unit 11, fill light unit 12, fill light unit 13, fill light unit 14; the other row includes: fill light unit 21, fill light unit 22, fill light unit 23, fill light unit 24. Since there are fill light units with overlapping fill light areas on the fill light terminal, refer to Figure 2 ,by Figure 2 Taking the middle filling area as an example, the fill light units 13, 14, 23 and 24 work together to increase the effective area and superimpose the light intensity. The relative dispersion of the several fill light units is also conducive to heat dissipation.

[0017] The closer you are to the fill light device, the stronger the fill light intensity is; the farther you are from the fill light device, the weaker the fill light intensity is. It is difficult to ensure the consistency of light intensity in the target area. It is easy to be overexposed near the target area, and the light intensity is insufficient far away.

[0018] To solve the above problem, the present invention further proposes that, among all the fill light units on the fill light device, the M first fill light units and the N second fill light units are configured differently, so that the difference between the fill light intensity of the M first fill light units in the first area and the fill light intensity of the N second fill light units in the second area is less than a preset value, the distances between the first area and the second area and the fill light device are not equal, and M and N are natural numbers greater than or equal to 1.

[0019] That is, through differentiated configurations between different fill light units, the consistency of light intensity in the target area can be improved.

[0020] refer to Figure 3 The first fill light unit 31 is integrated on the first fill light terminal 3, and the second fill light unit 41 is integrated on the second fill light terminal 4. The differentiated configuration between the M first fill light units 31 and the N second fill light units 41 is specifically as follows:

[0021] The first fill light unit and the second fill light unit have different fill light wavelength configurations. Assuming that the first area where the first fill light terminal 3 performs fill light is farther away from the first fill light terminal 3, and the second area where the second fill light terminal 4 performs fill light is relatively close to the second fill light terminal 4, under the premise that other related factors are similar, the first fill light unit 31 and the second fill light unit 41 can be configured with different fill light wavelengths. The fill light wavelength of the first fill light unit 31 is short, and the fill light wavelength of the second fill light unit 41 is long, so as to shorten the fill light intensity of the first area and the second area, and make the difference between the fill light intensity of the first fill light device 3 in the first area and the fill light intensity of the second fill light device 4 in the second area less than the preset value or even equal, so as to improve the consistency of the light intensity in the target area.

[0022] The spacing configuration will also affect the fill light intensity. The denser the spacing, the stronger the light intensity, and the looser the spacing, the weaker the light intensity. Similarly, different spacing configurations of the first fill light unit 31 and the second fill light unit 41 can also produce the same effect as described above.

[0023] The beam angle configuration also affects the fill light intensity. The smaller the beam angle, the stronger the light intensity, and the larger the beam angle, the weaker the light intensity. Similarly, the first fill light unit 31 and the second fill light unit 41 can be configured with different beam angles to produce the same effect as described above.

[0024] Of course, it is not limited to the use of the above three alone, and can also be selectively used in combination. Of course, there are some other ways, which should all be included in the protection scope of this utility model and will not be listed exhaustively.

[0025] refer to Figure 3It is easy to see that the multiple first fill light units 31 within the first boundary 52 of the first fill light terminal 3 are compared with the first fill light unit 31 located at the center of the first fill light terminal 3. Since there is no first fill light unit 31 on the left side of the figure, the fill light effect of the first fill light units 31 in this area on the target area is weaker, and the light intensity is significantly lower than that in the center area. Similarly, the multiple second fill light units 41 within the second boundary 51 of the second fill light terminal 4 in the figure are also the same. Since the first fill light terminal 3 and the second fill light terminal 4 are used to fill light, they are complementary to each other to expand the fill light area. Therefore, the connection position between the boundary 51 and the boundary 52 is likely to become the center of the target area, where the light intensity is weaker, and the actual effect is naturally deviated.

[0026] To solve the above problems, the present invention proposes that the boundaries of the first area and the second area overlap. Specifically, the fill light of the target area is partially overlapped by one or more adjacent first fill light units 31 and one or more adjacent second fill light units 41. The superposition of light intensity can solve the problem of weak light intensity at the center of the target area. At the same time, since it is only the boundary superposition, the problem of excessive light intensity and overexposure caused by excessive superposition can also be avoided.

[0027] In the present invention, the first fill light unit and the second fill light unit may also be integrated into the same third fill light device.

[0028] The differentiated configurations between the M first fill light units and the N second fill light units are as follows:

[0029] The first fill light unit and the second fill light unit have different fill light wavelength configurations, and / or the first fill light unit and the second fill light unit have different spacing configurations, and / or the first fill light unit and the second fill light unit have different beam angle configurations.

[0030] Take the scenario where the third fill light device overlooks the target area to provide fill light as an example.

[0031] Assume that the fill light units located at a higher position are a set of first fill light units, and those located at a lower position are a set of second fill light units, and the fill light areas of the first fill light units within the target area are relatively farther away.

[0032] Compared with the set of second fill light units, by configuring the first fill light unit with a smaller fill light wavelength, and / or a smaller beam angle, and / or a smaller adjacent spacing, based on the above, the purpose of improving the consistency of the fill light intensity in the target area can be achieved.

[0033] The utility model also provides an image acquisition system, comprising: an image acquisition terminal for acquiring an image of a target area; and a fill light device.

[0034] The fill light unit uses infrared light for fill light.

[0035] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A fill light device, characterized in that: The device comprises one or more fill light terminals, wherein the fill light terminal is integrated with multiple fill light units capable of providing fill light to a target area, and the fill light units on the fill light terminal have overlapping fill light areas; Among all the fill light units on the fill light device, M first fill light units and N second fill light units are configured differently, so that the difference between the fill light intensity of the M first fill light units in the first area and the fill light intensity of the N second fill light units in the second area is less than a preset value, and the distances between the first area and the second area and the fill light device are unequal, where M and N are natural numbers greater than or equal to 1; The first fill light unit (31) is integrated on the first fill light terminal (3), and the second fill light unit (41) is integrated on the second fill light terminal (4). The differentiated configuration between the M first fill light units (31) and the N second fill light units (41) is specifically as follows: the first fill light unit (31) and the second fill light unit (41) have different fill light wavelength configurations, and / or the first fill light unit (31) and the second fill light unit (41) have different spacing configurations, and / or the first fill light unit (31) and the second fill light unit (41) have different beam angle configurations.

2. The fill light device according to claim 1, characterized in that: The boundaries of the first area and the second area coincide with each other.

3. The fill light device according to claim 2, characterized in that: The boundary overlap between the first area and the second area specifically means that the fill light of the target area provided by one or more adjacent first fill light units (31) and one or more adjacent second fill light units (41) partially overlaps.

4. The fill light device according to claim 1, characterized in that: The first fill light unit and the second fill light unit are integrated on the third fill light device. The differentiated configuration between the M first fill light units and the N second fill light units is specifically: the first fill light unit and the second fill light unit have different fill light wavelength configurations, and / or, the first fill light units and the second fill light units have different spacing configurations, and / or, the first fill light unit and the second fill light unit have different beam angle configurations.

5. An image acquisition system, characterized in that: include: Image acquisition terminal, used to acquire images of the target area; The fill light device according to any one of claims 1 to 4.

6. The image acquisition system according to claim 5, characterized in that: The fill light unit uses infrared light for fill light.

Images