Clamp Light

Abstract

The present invention provides a clamp lamp for clamping on a display screen, wherein the display screen has a front surface and a rear surface. The clamp lamp comprises a first clamp, a second clamp and a light-emitting module. When the clamp lamp clamps the edge of the display screen, the first clamp and the second clamp are used to abut the front surface and the rear surface of the display screen respectively. The light-emitting module is connected to the first clamp and comprises a shell, a light-emitting component and a reflective component. The shell has a light outlet. The light-emitting component is arranged in the shell and is used to emit light. The reflective component is arranged in the shell and is used to reflect light to illuminate the front of the front surface through the light outlet, the reflective component has a first reflective surface and a second reflective surface connected to each other, the first reflective surface is farther away from the light-emitting component than the second reflective surface, the first reflective surface has a plurality of reflection points, each reflection point has a radius of curvature, and each radius of curvature is equal to or greater than 25 mm.

Description

Technical Field

[0001] The invention relates to a clamp lamp. Background Art

[0002] The existing clip lamps disposed on the display screen can emit an illumination light to illuminate the front of the display screen. However, if the clip lamp is poorly designed, the illumination light may irradiate the display surface of the display screen and cause reflection and / or uneven distribution of the brightness of the illumination light in the illumination area. Therefore, how to propose a clip lamp with a suitable design to obtain a suitable illumination light range is an important issue for the industry in this field. Summary of the invention

[0003] The object of the present invention is to provide a clamp lamp which can improve the conventional problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a clamp lamp for clamping on a display screen, the display screen having a front surface and a rear surface, the clamp lamp comprising: a first clamp; a second clamp, when the clamp lamp clamps the edge of the display screen, the first clamp and the second clamp are used to respectively abut the front surface and the rear surface of the display screen; and a light-emitting module connected to the first clamp, the light-emitting module comprising: a shell having a light outlet; a light-emitting member arranged in the shell, the light-emitting member being used to emit light; and a reflective member arranged in the shell, the reflective member being used to reflect the light through the light outlet to illuminate the front of the front surface, the reflective member having a first reflective surface and a second reflective surface connected to each other, the first reflective surface being farther away from the light-emitting member than the second reflective surface, the first reflective surface having a plurality of first reflective points, each of the first reflective points having a first radius of curvature, each of the first radius of curvature being equal to or greater than 25 mm.

[0005] Preferably, a first angle between a tangent direction of the first reflection point and a reference axis is between 15 degrees and 60 degrees, wherein the reference axis is parallel to an optical axis of the light-emitting element.

[0006] Preferably, the second reflection surface has a plurality of second reflection points, each of the second reflection points has a second radius of curvature, and each of the second radius of curvature is equal to or greater than 30 mm.

[0007] Preferably, a second angle between a tangent direction of each of the second reflection points and a reference axis is between 10 degrees and 45 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

[0008] Preferably, the optical axis of the light emitting element passes through the second reflecting surface.

[0009] Preferably, the reflective element also includes a second reflective surface and a third reflective surface connected to each other, the second reflective surface is farther away from the light-emitting element than the third reflective surface; the third reflective surface has a plurality of third reflective points, each of the third reflective points has a third radius of curvature, each of the third radius of curvature is equal to or greater than 1000 mm, wherein the third radius of curvature is greater than the first radius of curvature and the second radius of curvature.

[0010] Preferably, a third angle between a tangent direction of each of the third reflection points and a reference axis is between 0 degrees and 20 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

[0011] Preferably, the light-emitting module also includes: a light-transmitting member, which is arranged between the reflective member and the light outlet, the light-transmitting member is arranged obliquely relative to the light outlet, and there are multiple different distances between the light-transmitting member and the light outlet, and the larger of the multiple distances is closer to the front surface of the display screen.

[0012] Preferably, the reflector further comprises a bearing portion and a reflective portion connected to each other, the reflective portion having the first reflective surface and the second reflective surface; the light emitting module further comprises: a circuit board, disposed on the bearing portion;

[0013] The light emitting element is disposed on and electrically connected to the circuit board, and the bearing portion and the reflecting portion are an integrally formed structure.

[0014] Preferably, a vertical distance between any point on the first reflecting surface and the light outlet is smaller than a vertical distance between any point on the second reflecting surface and the light outlet.

[0015] Preferably, a light absorbing layer is disposed in the housing, facing the light emitting element and the front surface of the display screen, and the light absorbing layer is farther away from the light emitting element than the reflective element.

[0016] To achieve the above-mentioned purpose, the present invention further provides a clamp lamp for clamping on a display screen, the display screen having a front surface and a rear surface, the clamp lamp comprising: a first clamp; a second clamp, when the clamp lamp clamps the edge of the display screen, the first clamp and the second clamp are used to respectively abut the front surface and the rear surface of the display screen; and a light-emitting module connected to the first clamp, the light-emitting module comprising: a housing having a light outlet; a light-emitting member disposed in the housing, the light-emitting member being used to emit light; and a reflector. The reflective member is disposed in the shell, and is used to reflect the light to illuminate the front of the front surface through the light outlet; and a light-transmitting member is disposed between the reflective member and the light outlet, and the light-transmitting member has a light incident surface, and an acute angle is formed between the light incident surface and the light outlet, and the light incident surface has a first point and a second point, the first point is farther away from the light-emitting member than the second point, and the vertical distance between the first point and the light outlet is smaller than the vertical distance between the second point and the light outlet, and the second point is closer to the front surface of the display screen than the first point.

[0017] Preferably, the reflective element has a first reflective surface and a second reflective surface connected to each other, the first reflective surface is farther away from the light-emitting element than the second reflective surface, the first reflective surface has multiple first reflective points, and the first angle of the tangent direction of each first reflective point relative to the reference axis is between 15 degrees and 60 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

[0018] Preferably, a second angle between a tangent direction of each of the second reflection points and the reference axis is between 10 degrees and 45 degrees.

[0019] Preferably, the reflector also includes a second reflective surface and a third reflective surface connected to each other, the second reflective surface is farther away from the light-emitting component than the third reflective surface; the third reflective surface has multiple third reflective points, each of the third reflective points has a third curvature radius, and each of the third curvature radius is equal to or greater than 1000 mm.

[0020] Preferably, a light absorbing layer is disposed in the housing, facing the light emitting element and the front surface of the display screen, and the light absorbing layer is farther away from the light emitting element than the reflective element.

[0021] To achieve the above-mentioned purpose, the present invention further provides a clamping lamp for clamping on a display screen, the display screen having a front surface and a rear surface, the clamping lamp comprising: a first clamping member; a second clamping member, when the clamping lamp clamps the edge of the display screen, the first clamping member and the second clamping member are used to respectively abut the front surface and the rear surface of the display screen; and a light-emitting module, connected to the first clamping member and comprising: a shell having a light outlet; a light-emitting member, arranged in the shell, the light-emitting member is used to emit light; and a reflective member, arranged in the shell, the reflective member is used to reflect the light through the light outlet to illuminate the front of the front surface, the reflective member has a plurality of reflection points, and the curvature radius of the reflection point closer to the display screen is greater than the curvature radius of the reflection point farther from the display screen.

[0022] Preferably, the reflective element includes a first reflective surface, a second reflective surface and a third reflective surface which are connected to each other, the third reflective surface is closer to the light-emitting element than the second reflective surface, and the second reflective surface is closer to the light-emitting element than the first reflective surface; the first reflective surface has a plurality of first reflective points, the second reflective surface has a plurality of second reflective points, and the third reflective surface has a plurality of third reflective points, each of the first reflective points has a first radius of curvature, each of the second reflective points has a second radius of curvature, and each of the third reflective points has a third radius of curvature, wherein the third radius of curvature is greater than the first radius of curvature, and the third radius of curvature is greater than the second radius of curvature.

[0023] To achieve the above-mentioned purpose, the present invention also provides a clamp lamp for clamping on a display screen, the display screen having a front surface and a rear surface, the clamp lamp comprising: a first clamp; a second clamp, when the clamp lamp clamps the edge of the display screen, the first clamp and the second clamp are used to respectively abut the front surface and the rear surface of the display screen; and a light-emitting module connected to the first clamp, the light-emitting module comprising: a shell having a light outlet; a light-emitting member arranged in the shell, the light-emitting member being used to emit light; a reflective member arranged in the shell, the reflective member being used to reflect the light to illuminate the front of the front surface through the light outlet; and a light-absorbing layer arranged in the shell, facing the light-emitting member and the front surface of the display screen, the light-absorbing layer being farther away from the light-emitting member than the reflective member.

[0024] Preferably, the shell also includes: a light-transmitting member, arranged between the reflective member and the light outlet, the light-transmitting member having a light incident surface, an acute angle formed between the light incident surface and the light outlet, the light incident surface having a first point and a second point, the first point being farther away from the light-emitting member than the second point, a vertical distance between the first point and the light outlet being smaller than a vertical distance between the second point and the light outlet, and the second point being closer to the front surface of the display screen than the first point.

[0025] Compared with the prior art, the clamp lamp provided by the present invention has the following effects: preventing the illumination light from irradiating the display surface of the display screen and causing reflection, homogenizing the brightness of the illumination light in the illumination area, and suppressing (reducing) or even eliminating stray light. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram showing a clamp lamp clamped on a display screen according to an embodiment of the present invention is shown.

[0027] Figure 2-3 Draw Figure 1 Schematic diagram of the clamp lamp.

[0028] Figure 4 A schematic diagram of a clamp lamp according to another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0029] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0030] Please refer to Figure 1 to Figure 3 , Figure 1 FIG. 1 is a schematic diagram showing a clamp lamp 100 clamped on a display screen 10 according to an embodiment of the present invention. Figure 2-3 Draw Figure 1 Schematic diagram of a clamp lamp 100.

[0031] like Figure 1As shown, the clip lamp 100 can be clamped on a display screen 10, and the display screen 10 has a front surface 10f and a rear surface 10b. Figure 2 and Figure 3 As shown, the clamp lamp 100 includes a first clamp 110, a second clamp 120 and a light emitting module 130. When the clamp lamp 100 clamps the edge of the display screen 10, the first clamp 110 and the second clamp 120 are used to respectively abut the front surface 10f and the rear surface 10b of the display screen 10. The light emitting module 130 is connected to the first clamp 110 and includes a housing 131, a light emitting member 132, a reflective member 133, a light-transmitting member 134 and a circuit board 135. The housing 131 has a light outlet 131a. The light emitting member 132 is disposed in the housing 131 and is used to emit light L1. The reflector 133 is disposed in the housing 131 and is used to reflect the light L1 through the light outlet 131a to illuminate the front of the front surface 10f. The reflector 133 has a first reflective surface 133s1 and a second reflective surface 133s2 connected to each other. The first reflective surface 133s1 is farther away from the light emitting element 132 than the second reflective surface 133s2. The first reflective surface 133s1 has a plurality of first reflective points P11. Each first reflective point P11 has a first curvature radius C1 (not shown). Each first curvature radius C1 is equal to or greater than 25 mm. In this way, the stray light L1a of the light L1 can be suppressed (reduced) or even eliminated (the stray light L1a is shown in FIG. Figure 1 ).

[0032] like Figure 1 As shown, after the light L1 is emitted from the light outlet 131a, an illumination area U1 is formed. The illumination area U1 can illuminate the supporting surface 20 (e.g., desktop) of the display screen 10. The illumination area U1 has an obvious boundary U1a away from the display screen 10. The obvious boundary U1a and the horizontal plane E1 form an angle θ. The angle θ can be greater than 0 degrees to prevent the light of the illumination area U1 from directly hitting the user's eyes. In addition, the angle θ can be smaller than a preset angle, such as 10 degrees, 20 degrees or other values, so that the illumination area U1 is an appropriate or expected illumination range. The illumination area U1 has an obvious boundary near the display screen 10, which is called the cutoff line U1b. The ratio of the brightness of the stray light L1a between the cutoff line U1b and the display screen 10 to the brightness of the illumination area U1 is, for example, less than a preset ratio, and the preset ratio is, for example, 5% or other values. The position of the cutoff line U1b can be defined according to this preset ratio. The brightness of the stray light L1a between the cutoff line of the illumination area of ​​the conventional clip lamp and the display screen negatively affects the image quality displayed by the user on the display surface 10u of the display screen 10 (e.g., causes reflection). In contrast, the embodiment of the present invention can suppress (reduce) the brightness of the stray light L1a or even eliminate the stray light L1a due to the design of the light emitting module 130, thereby preventing the stray light L1a from negatively affecting the image quality displayed by the user on the display surface 10u of the display screen 10.

[0033] like Figure 3As shown, the light emitting element 132 is disposed and electrically connected to the circuit board 135. The housing 131 includes a blocking portion 1311, which is located directly below the circuit board 135 and the light emitting element 132, and can block part of the light L1 (such as the edge light of the light emitting angle range) of the light emitting element 132 to control the angle of the cut-off line U1b relative to the display surface 10u of the display screen 10. In this embodiment, the end surface 1311s of the blocking portion 1311 is substantially coplanar with the light emitting surface 132e of the light emitting element 132, so that the cut-off line U1b can be substantially parallel to the display surface 10u of the display screen 10. However, the end surface 1311s and the light emitting surface 132e are not limited to being coplanar, as long as the light emitting surface 132e does not protrude beyond the end surface 1311s along the optical axis OA direction.

[0034] In one embodiment, the first curvature radius C1 of each first reflection point P11 of the first reflection surface 133s1 may be between 25 mm and 200 mm (including the end values), so that the brightness of the stray light L1a can be suppressed (reduced) or even the stray light L1a can be eliminated. Figure 3 As shown, the first angle A11 of the tangent direction T11 of each first reflection point P11 relative to the reference axis R1 is, for example, between 15 degrees and 60 degrees, but can also be less than 15 degrees or greater than 60 degrees, wherein the reference axis R1 is parallel to the optical axis OA of the light emitting element 132, so that the brightness of the stray light L1a can be suppressed (reduced) or even the stray light L1a can be eliminated. These first reflection points P11 constitute the first reflection surface 133s1, and are, for example, smoothly distributed. In addition, the values ​​of at least two of these first curvature radii C1 can be the same or different.

[0035] like Figure 3 As shown, the second reflection surface 133s2 has a plurality of second reflection points P12, each of which has a second radius of curvature C2 (not shown), and each second radius of curvature C2 is equal to or greater than 30 mm, so that the brightness of the illumination area U1 can be averaged. In one embodiment, each second radius of curvature C2 can be between 25 mm and 200 mm (including the end points). In addition, the second angle A12 of the tangent direction T12 of each second reflection point P12 relative to the reference axis R1 is between 10 degrees and 45 degrees, but can also be less than 10 degrees or greater than 45 degrees, so that the brightness of the illumination area U1 can be averaged. In addition, the optical axis OA of the light-emitting element 132 can pass through the second reflection surface 133s2, so that most of the light or stronger light of the light-emitting element 132 can be reflected by the second reflection surface 133s2 to form the range of the illumination area U1. These second reflection points P12 constitute the second reflection surface 133s2, and are, for example, smoothly distributed. Furthermore, the values ​​of at least two of the second radii of curvature C2 may be the same or different.

[0036] like Figure 3As shown, the reflector 133 also includes a third reflective surface 133s3 connected to the second reflective surface 133s2, and the second reflective surface 133s2 is farther away from the light-emitting element 132 than the third reflective surface 133s3. The third reflective surface 133s3 has a plurality of third reflective points P13. These third reflective points P13 constitute the third reflective surface 133s3, and are, for example, smoothly distributed. Each third reflective point P13 has a third radius of curvature C3 (not shown), and each third radius of curvature C3 is equal to or greater than 1000 mm, wherein the third radius of curvature C3 is greater than the first radius of curvature C1, and the third radius of curvature C3 is greater than the second radius of curvature C2. In this way, the cut-off line U1b can be made substantially parallel to the display surface 10u of the display screen 10 (such as Figure 1 In addition, the values ​​of at least two of the third radii of curvature C3 may be the same or different. In one embodiment, each third radius of curvature C3 may be infinite at most. Under this design, at least a portion of the third reflective surface 133s3 is a plane.

[0037] like Figure 3 As shown, the third angle A13 of the tangent direction T13 of each third reflection point P13 relative to the reference axis R1 is between 0 degrees and 20 degrees, but can also be greater than 20 degrees, so that the cut-off line U1b can be substantially parallel to the display surface 10u of the display screen 10, as shown in FIG. Figure 1 shown.

[0038] like Figure 3 As shown, the reflector 133 is arranged obliquely relative to the light outlet 131a. For example, a vertical distance DH1 (e.g., perpendicular to the light outlet 131a) between any first reflection point P11 of the first reflection surface 133s1 and the light outlet 131a is smaller than a vertical distance DH2 (e.g., perpendicular to the light outlet 131a) between any second reflection point P12 of the second reflection surface 133s2 and the light outlet 131a, and a vertical distance DH2 between any second reflection point P12 of the second reflection surface 133s2 and the light outlet 131a is smaller than a vertical distance DH3 (e.g., perpendicular to the light outlet 131a) between any third reflection point P13 of the third reflection surface 133s3 and the light outlet 131a.

[0039] like Figure 3As shown, the first reflection surface 133s1 and the second reflection surface 133s2 are, for example, smoothly connected. For example, there is a first connection point Pa between the first reflection surface 133s1 and the second reflection surface 133s2, and the tangent direction of the first connection point Pa at the first reflection surface 133s1 and the tangent direction of the first connection point Pa at the second reflection surface 133s2 substantially coincide with each other. Similarly, the second reflection surface 133s2 and the third reflection surface 133s3 are, for example, smoothly connected. For example, there is a second connection point Pb between the second reflection surface 133s2 and the third reflection surface 133s3, and the tangent direction of the second connection point Pb at the second reflection surface 133s2 and the tangent direction of the second connection point Pb at the third reflection surface 133s3 substantially coincide with each other.

[0040] like Figure 3 As shown, the reflector 133 also includes a supporting portion 1331 and a reflecting portion 1332 connected to each other, wherein the reflecting portion 1332 has the aforementioned first reflecting surface 133s1, the second reflecting surface 133s2 and the third reflecting surface 133s3. In this embodiment, the supporting portion 1331 and the reflecting portion 1332 are integrally formed. In another embodiment, the supporting portion 1331 and the reflecting portion 1332 can also be formed separately, and then a temporary or permanent bonding technology is used to bond the supporting portion 1331 and the reflecting portion 1332. The reflector 133 has a reflectivity higher than 90%, for example. In terms of material, the material of the reflector 133 is, for example, high-reflectivity aluminum.

[0041] like Figure 3 As shown, the relative positions of the reflector 133 and the housing 131 are fixed, for example, the reflector 133 and the housing 131 are engaged to fix the relative positions of the two. In an embodiment, the housing 131 includes at least one limiting portion 1312, and the first end 133a of the reflector 133 is located in the limiting portion 1312. In this embodiment, the limiting portion 1312 is, for example, a notch. In addition, the second end 133b of the reflector 133 may abut against the blocking portion 1311 of the housing 131, but may not abut against the blocking portion 1311. Although not shown, in another embodiment, the blocking portion 1311 may have a notch, and the second end 133b of the reflector 133 may fit tightly with the notch of the blocking portion 1311 to further stabilize the relative position of the reflector 133 and the housing 131. However, as long as the relative position of the reflector 133 and the housing 131 can be fixed, the embodiment of the present invention does not limit the fixing method of the reflector 133 and the housing 131.

[0042] like Figure 3As shown, the light-transmitting member 134 is disposed between the reflective member 133 and the light outlet 131a. The light-transmitting member 134 is light-transmitting and allows light to pass through while also providing waterproof and dustproof effects. In another embodiment, if not necessary, the light-emitting module 130 may omit the light-transmitting member 134. The light-transmitting member 134 is tilted relative to the light outlet 131a, so that the light reflected by the reflective member 133 and the light directly emitted by the light-emitting member 132, those with large angles, can be reflected or refracted by the light incident surface 134i so that those lights remain in the shell and avoid being projected in the direction of the display surface 10u. For example, there are several different distances between the light-transmitting member 134 and the light outlet 131a, and the larger of these distances is closer to the front surface 10f of the display screen 10, and these large-angle lights hit the end surface 1311s and reduce the light in the direction of the display surface 10u. Furthermore, as Figure 3 As shown, the light-transmitting member 134 is disposed between the reflective member 133 and the light outlet 131a and has a light incident surface 134i. An acute angle A2 is formed between the light incident surface 134i and the light outlet 131a. The light incident surface 134i has a first point P21 and a second point P22. The first point P21 is farther away from the light-emitting member 132 than the second point P22. A vertical distance DH4 (e.g., perpendicular to the light outlet 131a) between the first point P21 and the light outlet 131a is smaller than a vertical distance DH5 (e.g., perpendicular to the light outlet 131a) between the second point P22 and the light outlet 131a. The second point P22 is closer to the front surface 10f of the display screen 10 (the front surface 10f is shown in FIG. 1 ) than the first point P21. Figure 1 ).

[0043] like Figure 3 As shown, the relative positions of the light-transmitting member 134 and the housing 131 are fixed, for example, the light-transmitting member 134 is engaged with the housing 131. In an embodiment, the housing 131 includes at least one engaging portion 1313, and the first end 134a of the light-transmitting member 134 is engaged with the engaging portion 1313. In an embodiment, the engaging portion 1313 is, for example, a notch, and the first end 134a of the light-transmitting member 134 can be tightly fitted with the engaging portion 1313 to fix the relative positions of the light-transmitting member 134 and the housing 131. The second end 134b of the light-transmitting member 134 can abut against the blocking portion 1311. In another embodiment, the second end 134b of the light-transmitting member 134 can abut against the reflective member 133, such as the bearing portion 1331 of the reflective member 133. Although not shown, in another embodiment, the blocking portion 1311 may have a notch, and the second end 134b of the light-transmitting member 134 may fit tightly into the notch of the blocking portion 1311 to further stabilize the relative position of the light-transmitting member 134 and the housing 131. However, as long as the relative position of the light-transmitting member 134 and the housing 131 can be fixed, the embodiment of the present invention does not limit the fixing method of the light-transmitting member 134 and the housing 131. In addition, the light-transmitting member 134 is, for example, formed of a light-transmitting polymer, such as light-transmitting plastic, but is not limited thereto.

[0044] like Figure 3 As shown, the circuit board 135 can be disposed on the reflector 133, for example, disposed on the supporting portion 1331 of the reflector 133. The circuit board 135 includes at least one circuit, and the positive electrode (not shown) and the negative electrode (not shown) of the light emitting element 132 are respectively electrically connected to the two circuits of the circuit board 135. The controller (not shown) of the clip lamp 100 can control the light emitting mode of the light emitting element 132 through the circuit of the circuit board 135.

[0045] Please refer to Figure 4 , which is a schematic diagram of a clamp lamp 200 according to another embodiment of the present invention.

[0046] The clip lamp 200 is used to be clamped on the display screen 10. The clip lamp 200 includes a first clamp 110, a second clamp 120 and a light emitting module 230. The light emitting module 230 includes a housing 131, a light emitting member 132, a reflective member 133, a light-transmitting member 134, a circuit board 135 and a light absorbing layer 236. The clip lamp 200 has the same or similar features as the clip lamp 100, except that the light emitting module 230 of the clip lamp 200 further includes a light absorbing layer 236. The light absorbing layer 236 is made of, for example, light absorbing foam or light absorbing velvet.

[0047] The light absorbing layer 236 can be disposed on the surface 131s of the housing 131. The surface 131s is located on the optical path of the light L1. For example, the surface 131s faces the direction of the light emitting element 132. The light absorbing layer 236 faces the light emitting element 132 and the front surface 10f of the display screen 10. The light absorbing layer 236 is farther away from the light emitting element 132 than the reflective element 133. In this way, the light absorbing layer 236 can absorb the light L1 to prevent the light L1 from being reflected to the display surface 10u of the display screen 10. In detail, if the light absorbing layer 236 is omitted, the reflected light L11 (indicated by the dotted line) reflected from the surface 131s is incident on the area between the illumination area U1 and the display screen 10 to form stray light. Due to the design of the light absorbing layer 236, the reflected light reflected from the housing 131 can be reduced or even eliminated, thereby reducing or even eliminating the stray light.

[0048] In summary, the clamp lamp of the embodiment of the present invention is used to be clamped on a display screen and includes a light-emitting module. The reflective member of the light-emitting module has a reflective surface with a variable curvature, which can provide at least one of the following technical effects: (1). The cutoff line of the illumination area is substantially parallel to the display surface of the display screen; (2). The brightness of the illumination area is averaged; and (3). Suppress (reduce) or even eliminate stray light. In another embodiment, the light-emitting module further includes a light-absorbing layer, which is located in the light path of the light and can absorb the light to reduce the amount of light reflected to the display surface of the display screen.

[0049] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A clip lamp for clamping on a display screen having a front surface and a rear surface, characterized in that: The clamp light includes: a first clamp; A second clamping member, when the clamping light clamps the edge of the display screen, the first clamping member and the second clamping member are used to abut against the front surface and the rear surface of the display screen respectively; and A light emitting module is connected to the first clamp, and the light emitting module includes: A housing having a light outlet; A light emitting element, disposed in the housing, and configured to emit light; A reflector, disposed in the housing, used to reflect the light through the light outlet to illuminate the front of the front surface, the reflector having a first reflective surface and a second reflective surface connected to each other, the first reflective surface being farther away from the light-emitting element than the second reflective surface, the first reflective surface having a plurality of first reflective points, each of which has a first radius of curvature, and each of which is equal to or greater than 25 mm; the second reflective surface having a plurality of second reflective points, each of which has a second radius of curvature, and each of which is equal to or greater than 30 mm; and, The light absorbing layer is disposed in the housing and faces the light emitting element and the front surface of the display screen. The light absorbing layer is farther away from the light emitting element than the reflective element.

2. The clamp lamp according to claim 1, characterized in that: A first angle between a tangent direction of the first reflection point and a reference axis is between 15 degrees and 60 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

3. The clamp lamp according to claim 1, characterized in that: A second angle between the tangent direction of each second reflection point and the reference axis is between 10 degrees and 45 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

4. The clamp lamp according to claim 1, characterized in that: The optical axis of the light emitting element passes through the second reflecting surface.

5. The clamp lamp according to claim 1, characterized in that: The reflector also includes a second reflective surface and a third reflective surface connected to each other, the second reflective surface is farther away from the light-emitting component than the third reflective surface; the second reflective surface has a plurality of second reflective points, each of the second reflective points has a second radius of curvature, the third reflective surface has a plurality of third reflective points, each of the third reflective points has a third radius of curvature, each of the third radius of curvature is equal to or greater than 1000 mm, wherein the third radius of curvature is greater than the first radius of curvature and the second radius of curvature.

6. The clamp lamp according to claim 5, characterized in that: A third angle between the tangent direction of each of the third reflection points and the reference axis is between 0 degrees and 20 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

7. The clamp lamp according to claim 1, characterized in that: The light emitting module also includes: A light-transmitting member is disposed between the reflective member and the light outlet. The light-transmitting member is disposed obliquely relative to the light outlet. There are multiple different distances between the light-transmitting member and the light outlet. The larger of the multiple distances is closer to the front surface of the display screen.

8. The clamp lamp according to claim 1, characterized in that: The reflector also includes a supporting portion and a reflective portion connected to each other, and the reflective portion has the first reflective surface and the second reflective surface; the light-emitting module also includes: A circuit board is disposed on the carrying portion; The light emitting element is disposed on and electrically connected to the circuit board, and the bearing part and the reflecting part are an integrally formed structure.

9. The clamp lamp according to claim 1, characterized in that: A vertical distance between any point of the first reflecting surface and the light outlet is smaller than a vertical distance between any point of the second reflecting surface and the light outlet.

10. A clip lamp for clamping on a display screen having a front surface and a rear surface, characterized in that: The clamp light includes: a first clamp; A second clamping member, when the clamping lamp clamps the edge of the display screen, the first clamping member and the second clamping member are used to respectively abut against the front surface and the rear surface of the display screen; and A light emitting module is connected to the first clamp, and the light emitting module includes: A housing having a light outlet; A light emitting element, disposed in the housing, and configured to emit light; a reflector, disposed in the housing, for reflecting the light to illuminate the front of the front surface through the light outlet; the reflector having a first reflective surface and a second reflective surface connected to each other, the first reflective surface being farther from the light emitting element than the second reflective surface; the second reflective surface having a plurality of second reflective points, each of the second reflective points having a second radius of curvature, each of the second radius of curvature being equal to or greater than 30 mm; a light-transmitting member disposed between the reflective member and the light outlet, the light-transmitting member having a light-entering surface, the light-entering surface and the light outlet forming an acute angle, the light-entering surface having a first point and a second point, the first point being farther from the light-emitting member than the second point, the vertical distance between the first point and the light outlet being smaller than the vertical distance between the second point and the light outlet, and the second point being closer to the front surface of the display screen than the first point; and The light absorbing layer is disposed in the housing and faces the light emitting element and the front surface of the display screen. The light absorbing layer is farther away from the light emitting element than the reflective element.

11. The clamp lamp according to claim 10, characterized in that: The first reflection surface has a plurality of first reflection points, and a first angle between a tangent direction of each first reflection point and a reference axis is between 15 degrees and 60 degrees, wherein the reference axis is parallel to the optical axis of the light-emitting element.

12. The clamp lamp according to claim 10, characterized in that: The second reflection surface has a plurality of second reflection points, and the second angle of the tangent direction of each second reflection point relative to the reference axis is between 10 degrees and 45 degrees.

13. The clamp lamp according to claim 10, characterized in that: The reflector also includes a second reflective surface and a third reflective surface connected to each other, the second reflective surface is farther away from the light-emitting component than the third reflective surface; the third reflective surface has a plurality of third reflective points, each of the third reflective points has a third curvature radius, and each of the third curvature radius is equal to or greater than 1000 mm.

14. A clip lamp for clamping on a display screen having a front surface and a rear surface, characterized in that: The clamp light includes: a first clamp; A second clamping member, when the clamping light clamps the edge of the display screen, the first clamping member and the second clamping member are used to abut against the front surface and the rear surface of the display screen respectively; and The light emitting module is connected to the first clamp and comprises: The housing has a light outlet; A light emitting element, disposed in the housing, and configured to emit light; a reflector, disposed in the housing, used to reflect the light to illuminate the front of the front surface through the light outlet, the reflector having a plurality of reflection points, the curvature radius of the reflection point closer to the display screen being greater than the curvature radius of the reflection point farther from the display screen; the reflector comprising a first reflection surface and a second reflection surface connected, the second reflection surface being closer to the light emitting element than the first reflection surface, the second reflection surface having a plurality of second reflection points, each of the second reflection points having a second curvature radius, and each of the second curvature radius being equal to or greater than 30 mm; and The light absorbing layer is disposed in the housing and faces the light emitting element and the front surface of the display screen. The light absorbing layer is farther away from the light emitting element than the reflective element.

15. The clamp lamp according to claim 14, characterized in that: The reflective member includes a third reflective surface, which is closer to the light-emitting member than the second reflective surface; the first reflective surface has a plurality of first reflective points, the second reflective surface has a plurality of second reflective points, and the third reflective surface has a plurality of third reflective points, each of the first reflective points has a first radius of curvature, each of the second reflective points has a second radius of curvature, and each of the third reflective points has a third radius of curvature, wherein the third radius of curvature is greater than the first radius of curvature, and the third radius of curvature is greater than the second radius of curvature.

16. The clamp lamp according to claim 14, characterized in that: The housing also includes: A light-transmitting member is disposed between the reflecting member and the light outlet, the light-transmitting member having a light incident surface, an acute angle being formed between the light incident surface and the light outlet, the light incident surface having a first point and a second point, the first point being farther from the light-emitting member than the second point, a vertical distance between the first point and the light outlet being smaller than a vertical distance between the second point and the light outlet, and the second point being closer to the front surface of the display screen than the first point.

17. A clip lamp for clamping on a display screen having a front surface and a rear surface, characterized in that: The clamp light includes: a first clamp; A second clamping member, when the clamping lamp clamps the edge of the display screen, the first clamping member and the second clamping member are used to respectively abut against the front surface and the rear surface of the display screen; and A light emitting module is connected to the first clamp, and the light emitting module includes: A housing having a light outlet; A light emitting element, disposed in the housing, and configured to emit light; a reflector disposed in the housing, the reflector being used to reflect the light to illuminate the front of the front surface through the light outlet; the reflector having a first reflective surface and a second reflective surface connected to each other, the first reflective surface being farther from the light emitting element than the second reflective surface, the second reflective surface having a plurality of second reflective points, each of the second reflective points having a second radius of curvature, and each of the second radius of curvature being equal to or greater than 30 mm; and The light absorbing layer is arranged in the shell, facing the light emitting element and the front surface of the display screen, and the light absorbing layer is farther away from the light emitting element than the reflective element.

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