Lamp with adjustable light-emitting angle

Abstract

The utility model discloses a light-emitting angle adjustable lamp which comprises a controller, a lamp panel and a light-transmitting panel covering the lamp panel, a plurality of LED lamp beads are arranged on the lamp panel, a plane light-transmitting area and two lens areas are arranged on the light-transmitting panel, the plane light-transmitting area is located between the two lens areas, and the light-transmitting area is located between the two lens areas. The lens area is provided with a plurality of lenses, and each lens corresponds to the corresponding LED lamp bead under the lens so as to deflect the light transmitting angle of the corresponding LED lamp bead.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a lamp with an adjustable light-emitting angle. Background Art

[0002] Most of the existing lamps have only one light-emitting angle and cannot meet the requirements of the specified lighting area of the site. Most of them adopt high-cost electronic control dimming methods, or adopt the method of manually replacing lenses, or adopt multiple lenses to match the lamp board to realize the switching of the light-emitting angle. This solution requires a large size of the light source surface, resulting in a clumsy product and low cost performance. Content of the Utility Model

[0003] An object of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a lamp with an adjustable light-emitting angle that is convenient for adjusting the light-emitting angle and saves the light source area.

[0004] The lamp with an adjustable light-emitting angle according to an embodiment of the utility model includes a lamp board and a light-transmitting panel covering the lamp board. A plurality of LED lamp beads are arranged on the lamp board. One planar light-transmitting area and two lens areas are arranged on the light-transmitting panel. The planar light-transmitting area is located between the two lens areas. A plurality of lenses are arranged in the lens areas. Each lens corresponds to the LED lamp bead directly below it to deflect the light-transmitting angle of the corresponding LED lamp bead.

[0005] According to some embodiments of the utility model, a controller is included. The controller is electrically connected to the lamp board to respectively control the brightness of the LED lamp beads corresponding to the planar light-transmitting area and the brightness of the LED lamp beads corresponding to the lens areas.

[0006] According to some embodiments of the utility model, the light-transmitting angle of the planar light-transmitting area is δ1, and δ1 is consistent with the light-emitting angle of the LED lamp beads corresponding to the planar light-transmitting area. The light-transmitting angle of the lens area is δ2, and δ2 is inversely proportional to the brightness of the LED lamp beads corresponding to the lens area.

[0007] According to some embodiments of the utility model, the ratio of the area S1 of the planar light-transmitting area to the area S2 of the two lens areas is S1 / S2, so that the overall light-emitting angle δ of the lamp is δ = δ1*S1 / (S1 + S2) - δ2*S2 / (S1 + S2)

[0008] The luminaires with adjustable light-emitting angles according to the embodiments of the present utility model have at least the following beneficial effects: The angle of the light transmitted through the planar light-transmitting area by the LED lamp beads is related to the light-emitting angle and brightness of the LED lamp beads themselves. The LED lamp beads are deflected and transmit light through the lens area, causing the light-emitting angle to change. Therefore, without replacing the lens, by controlling the brightness of the LED lamp beads in the lens area, various light-emitting angles can be controlled. For example, when the LED lamp beads in the lens area are not lit, the overall light-emitting angle is the light-emitting angle of the planar light-transmitting area (that is, the light-emitting angle of the LED lamp beads themselves, generally 120 degrees). Since the planar light-transmitting area is located in the middle of the two lens areas, when the LED lamp beads in the lens area are brighter, the lens deflects the light in this area by a greater angle, making the overall light-emitting range narrower, thereby achieving the adjustment of various light-emitting angles.

[0009] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0010] The following further describes the specific embodiments of the present utility model with reference to the drawings;

[0011] Figure 1 is the overall structure diagram of the luminaire with adjustable light-emitting angle;

[0012] Figure 2 is the exploded structure diagram of the luminaire with adjustable light-emitting angle;

[0013] Figure 3 is the light-emitting effect diagram of the luminaire with adjustable light-emitting angle. Specific Embodiments

[0014] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0015] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0016] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0017] Referring to Figures 1 to 2 , a lamp with adjustable light-emitting angle of the present utility model includes a controller 32, a lamp board 20, and a light-transmitting panel 10 covering the lamp board 20. A plurality of LED lamp beads are provided on the lamp board 20. A planar light-transmitting area 11 and two lens areas 12 are provided on the light-transmitting panel 10. The planar light-transmitting area 11 is located between the two lens areas 12. A plurality of lenses are provided in the lens areas 12, and each lens corresponds to the LED lamp bead directly below it to deflect the light-transmitting angle of the corresponding LED lamp bead. The controller 32 is electrically connected to the lamp board 20 to respectively control the brightness of the LED lamp beads corresponding to the planar light-transmitting area 11 and the brightness of the LED lamp beads corresponding to the lens areas 12.

[0018] The light-transmitting angle of the planar light-transmitting area 11 is δ1, and δ1 is consistent with the light-emitting angle of the LED lamp beads corresponding to the planar light-transmitting area 11 (the light-emitting angle of the LED lamp beads is generally 120 degrees). The light-transmitting angle of the lens area 12 is δ2, and δ2 is inversely proportional to the brightness of the LED lamp beads corresponding to the lens area 12, that is, the greater the brightness, the smaller δ2. The ratio of the area S1 of the planar light-transmitting area 11 to the area S2 of the two lens areas 12 is S1 / S2, so that the overall light-emitting angle δ of the lamp is δ = δ1*S1 / (S1 + S2) - δ2*S2 / (S1 + S2). For example, if δ1 = 120 degrees, δ2 = 45 degrees, and S1 / S2 = 7 / 3, then

[0019] δ = (120*0.7) - (45*0.3) = 70 degrees. Through practice, it can be known that the range of the overall light-emitting angle δ of the lamp is 60 degrees to 120 degrees.

[0020] That is, the angle of the light transmitted by the LED lamp beads through the planar light-transmitting area 11 is related to the light-emitting angle and brightness of the LED lamp beads themselves. After the LED lamp beads are deflected and transmit light through the lens area 12, the light-emitting angle changes. Therefore, without replacing the lens, only by controlling the brightness of the LED lamp beads in the lens area 12 can the control of multiple light-emitting angles be achieved. Such as Figure 3, for example, when the LED lamp beads in the lens area 12 are not lit, the overall light-emitting angle is the light-emitting angle of the planar light-transmitting area 11 (i.e., the light-emitting angle of the LED lamp beads themselves, generally 120 degrees). Since the planar light-transmitting area 11 is located between the two lens areas 12, when the LED lamp beads in the lens area 12 are brighter, the lens deflects the light-emitting angle of this area more, making the overall light-emitting range narrower, thus realizing the adjustment of multiple light-emitting angles.

[0021] Such as Figure 2 , it further includes a power supply device 31, a pressing plate 33, a waterproof ring 34, and a metal bottom case 30 for heat dissipation. Heat dissipation fins are provided on the bottom case 30 to further improve the heat dissipation efficiency. An installation groove is provided inside the bottom case 30, and the power supply device 31 and the controller 32 are respectively arranged in the installation groove. The lamp board 20 is respectively located above the power supply device 31 and the controller 32. The light-transmitting panel 10 is connected to the bottom case 30 to seal the opening of the bottom case 30. The pressing plate 33 is located above the power supply device 31 to be connected to the bottom case 30, and the lamp board 20 is located above the pressing plate 33. The pressing plate 33 is used to fix the power supply device 31. The waterproof ring 34 is located between the light-transmitting panel 10 and the bottom case 30.

[0022] Furthermore, it further includes an installation arm 40. The installation arm 40 is fixedly connected or rotatably connected to the bottom case 30, which is convenient for the installation of this lamp, and the rotatable connection is convenient for the adjustment of the irradiation angle.

[0023] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above preferred methods can be freely combined and superimposed.

[0024] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A lighting fixture with adjustable light-emitting angle, characterized in that, Comprising: A lamp board (20) and a light-transmitting panel (10) covering the lamp board (20). A plurality of LED lamp beads are provided on the lamp board (20). A planar light-transmitting area (11) and two lens areas (12) are provided on the light-transmitting panel (10). The planar light-transmitting area (11) is located between the two lens areas (12). A plurality of lenses are provided in the lens areas (12), and each lens corresponds to the LED lamp bead directly below it to deflect the light-transmitting angle of the corresponding LED lamp bead.

2. The luminaire with adjustable light-emitting angle according to claim 1, wherein: Comprising a controller (32), the controller (32) being electrically connected to the lamp board (20) to respectively control the brightness of the LED lamp beads corresponding to the planar light-transmitting area (11) and the brightness of the LED lamp beads corresponding to the lens areas (12).

3. The luminaire with adjustable light-emitting angle according to claim 2, wherein: The light-transmitting angle of the planar light-transmitting area (11) is δ1, and δ1 is consistent with the light-emitting angle of the LED lamp beads corresponding to the planar light-transmitting area (11). The light-transmitting angle of the lens area (12) is δ2, and δ2 is inversely proportional to the brightness of the LED lamp beads corresponding to the lens area (12).

4. The luminaire with adjustable light-emitting angle according to claim 3, wherein: The ratio of the area S1 of the planar light-transmitting area (11) to the area S2 of the two lens areas (12) is S1 / S2, such that the overall light-emitting angle δ of the lamp is δ = δ1*S1 / (S1 + S2) - δ2*S2 / (S1 + S2).

5. The luminaire with adjustable light-emitting angle according to claim 2, wherein: Further comprising a metal bottom case (30) and a power supply device (31). An installation groove is provided inside the bottom case (30). The power supply device (31) and the controller (32) are respectively arranged in the installation groove. The lamp board (20) is respectively located above the power supply device (31) and the controller (32). The light-transmitting panel (10) is connected to the bottom case (30) to seal the opening of the bottom case (30).

6. The luminaires with adjustable light emission angles according to claim 5, characterized in that: Further comprising a pressing plate (33), the pressing plate (33) being located above the power supply device (31) to be connected to the bottom case (30), and the lamp board (20) being located above the pressing plate (33).

7. The luminaires with adjustable light-emitting angle according to claim 6, characterized in that: Heat dissipation fins are provided on the bottom case (30).

8. The luminaire with adjustable light-emitting angle according to claim 6, characterized in that: Further comprising a waterproof ring (34), the waterproof ring (34) being located between the light-transmitting panel (10) and the bottom case (30).

9. The luminaires with adjustable luminous angles according to claim 6, characterized in that: Further comprising a mounting arm (40), the mounting arm (40) being fixedly connected or rotatably connected to the bottom case (30).

Images