screen light

Abstract

The application discloses a screen lamp, comprising a lamp head and a clamping part, the lamp head comprises a shell, a light source and a total internal reflection lens in the shell, the bottom of the shell is provided with a light outlet, the total internal reflection lens comprises a cone part and a square part arranged at the large end of the cone part, the square part is arranged towards the light outlet, a square groove is arranged at the top of the cone part away from the square part, the light source is arranged at the opening of the square groove and on the side of the total internal reflection lens away from the light outlet, the clamping part is connected to one side of the bottom of the lamp head and used for clamping on the upper side of the screen of an electronic device, the connection position of the lamp head and the clamping part is a connection position, and the bottom surface of the square groove is inclined from the side close to the connection position to the side away from the connection position in the direction away from the bottom surface of the square part. The screen lamp can provide illumination above the screen and avoid the inconvenience of dazzling caused by the light beam on the screen.

Description

Technical Field

[0001] This application relates to the field of lighting device technology, and in particular to a screen light. Background Technology

[0002] In related technologies, commercially available laptop lighting devices (such as desk lamps or clip-on lamps) often shine light directly onto the screen of electronic devices, creating glaring reflections that cause eye discomfort. Even if users can manually adjust the angle of the lighting device, it is not easy to achieve a suitable position and requires considerable time. Therefore, how to prevent the lighting device from shining a beam of light directly onto the screen while still providing adequate illumination is a problem that needs to be solved. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a screen light that can be clamped above the screen to provide illumination while avoiding the inconvenience of glare caused by the beam of light hitting the screen.

[0004] The screen lamp according to an embodiment of the present utility model includes: a lamp head and a clamping part. The lamp head includes a housing, a light source and a total internal reflection lens located inside the housing. The bottom of the housing is provided with a light outlet. The total internal reflection lens includes a conical part and a cuboid part located at the larger end of the conical part. The cuboid part is disposed facing the light outlet. A square groove is opened at the top of the conical part away from the cuboid part. The light source is disposed at the opening of the square groove and is located on the side of the total internal reflection lens away from the light outlet. The clamping part is connected to one side of the bottom of the lamp head and is used to clamp the upper part of the screen of an electronic device. The connection between the lamp head and the clamping part is a connection position. The bottom surface of the square groove is inclined from the side near the connection position to the side away from the connection position towards the direction away from the bottom surface of the cuboid part.

[0005] The screen lamp according to the embodiment of this utility model has at least the following beneficial effects: This screen lamp includes a lamp head and a clamping part, so the lamp head can be clamped above the screen of an electronic device by the clamping part. The lamp head includes a housing and a light source and a total internal reflection lens located inside the housing. The light source is located at the square slot opening at the top of the cone portion of the total internal reflection lens. The bottom of the cone portion of the total internal reflection lens, that is, the large end of the cone portion, has a cuboid portion, which is positioned facing the light outlet at the bottom of the housing. This allows the light from the light source to be converged by the total internal reflection lens and exit through the light outlet. The light is emitted, and at the same time, the connection between the clamping part and the bottom of the lamp head is the connection position. The bottom surface of the square groove is inclined from the side close to the connection position to the side away from the connection position, in the direction away from the bottom surface of the square part. Therefore, the light emitted outward from the bottom surface of the square part, which is the light outlet, will change from the original symmetrical beam to an asymmetrical beam, thereby shifting away from the screen of the electronic device, thus avoiding the glare caused by the beam hitting the screen and reflecting off it. Therefore, the screen lamp of this application can be clamped above the screen to provide illumination, while avoiding the inconvenience of the beam hitting the screen and causing glare. According to some embodiments of the present invention, a first support portion and a second support portion are provided inside the housing. The second support portion and the first support portion are used to support the total internal reflection lens. The second support portion is located away from the connection position relative to the first support portion, and the height of the second support portion is higher than that of the first support portion, so that the light beam of the light source is tilted downward and away from the screen after passing through the total internal reflection lens.

[0006] According to some embodiments of the present invention, the lamp holder includes a first circuit board, the light source is disposed on the side of the first circuit board near the total internal reflection lens, and the bottom of the housing is provided with a limiting part facing the first circuit board to limit the depth of the light source entering the square groove.

[0007] According to some embodiments of the present invention, a first positioning part is further provided inside the housing, and a second positioning part is provided correspondingly for the first circuit board. The first positioning part is used to cooperate with the second positioning part to fix the first circuit board.

[0008] According to some embodiments of the present invention, the clamping part is provided with a second circuit board and a battery, and the second circuit board is electrically connected to the battery and the first circuit board respectively.

[0009] According to some embodiments of the present invention, the screen light is further provided with a sensing module, which is electrically connected to the second circuit board and is used to sense the human body to adjust the color temperature and / or brightness of the light source.

[0010] According to some embodiments of this utility model, the lamp head and the clamping part are respectively provided with a Hall sensor and a magnet. The Hall sensor is electrically connected to the second circuit board and is used to cooperate with the magnet to turn the light source on and off.

[0011] According to some embodiments of the present invention, the clamping part includes a first clamping part and a second clamping part. One end of the first clamping part is rotatably connected to the lamp head, and the other end of the first clamping part is rotatably connected to one end of the second clamping part. The second circuit board and the battery are disposed in the first clamping part. The end of the first clamping part connected to the lamp head is provided with a protruding front clamping part. When the screen lamp is clamped on the screen, the front clamping part abuts against the front side of the screen, and the other end of the second clamping part abuts against the back side of the screen.

[0012] According to some embodiments of the present invention, the first clamping part is cuboid and includes a front plate and a bottom plate. The front plate is used to close with the lamp holder, and the bottom plate is used to close with the second clamping part. One end of the front plate extends and protrudes from the bottom plate to form the front clamping part.

[0013] According to some embodiments of the present invention, the housing includes a base and an upper shell. The base is hinged to the first clamping part. The top of the base is open and the bottom is provided with a light outlet. The upper shell is cuboid and has an open bottom for fitting onto the base. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the overall structure of one embodiment of the screen light of this utility model in the on state; Figure 2 for Figure 1 The cross-sectional view shown is of the screen light being turned on; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 1 The diagram shown is a structural schematic of the screen light after all the outer casings have been removed. Figure 5 for Figure 1 The diagram shows the structure with the screen light in the off state; Figure 6 A simplified structural diagram of a screen lamp emitting a symmetrical beam of light in the prior art; Figure 7 This is a simplified structural diagram of the screen lamp emitting an asymmetric light beam in this embodiment.

[0015] Figure label: Lamp head 100; housing 110; light outlet 111; base 112; upper shell 113; light source 120; total internal reflection lens 130; conical part 131; cuboid part 132; square groove 133; first support part 141; second support part 142; first circuit board 150; limiting part 160; first positioning part 171; second positioning part 172; first clamping part 200; second circuit board 210; battery 220; sensing module 230; Hall sensor 240; front clamping part 250; front plate 260; bottom plate 270; second clamping part 300; connection position 400. Detailed Implementation

[0016] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0017] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0020] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] The following is for reference. Figures 1 to 7 This invention describes a screen light according to an embodiment of the present invention.

[0022] like Figures 1 to 3 As shown, the screen lamp according to an embodiment of the present invention includes: a lamp head 100 and a clamping part. The lamp head 100 includes a housing 110, a light source 120 and a total internal reflection lens 130 located inside the housing 110. The bottom of the housing 110 is provided with a light outlet 111. The total internal reflection lens 130 includes a conical part 131 and a cuboid part 132 disposed at the larger end of the conical part. The cuboid part 132 is disposed facing the light outlet 111, and the top of the conical part 131 is open away from the cuboid part 132. A square groove 133 is provided, and a light source 120 is provided at the opening of the square groove 133 and located on the side of the total internal reflection lens 130 away from the light outlet 111; a clamping part is connected to one side of the bottom of the lamp head 100 and is used to clamp on the upper side of the screen of the electronic device; wherein, the connection between the lamp head 100 and the clamping part is a connection position 400, and the bottom surface of the square groove 133 is inclined from the side close to the connection position 400 to the side away from the connection position 400 towards the direction away from the bottom surface of the cuboid part 132.

[0023] Understandably, this screen light includes a lamp head 100 and a clamping part. Therefore, the lamp head 100 can be clamped above the screen of an electronic device via the clamping part. The lamp head 100 includes a housing 110 and a light source 120 and a total internal reflection lens 130 located within the housing 110. The light source 120 is located at the opening of the square groove 133 at the top of the cone portion 131 of the total internal reflection lens 130. The bottom of the cone portion 131 of the total internal reflection lens 130, that is, the large end of the cone portion 131, is provided with a cuboid portion 132. The cuboid portion 132 is positioned facing the light outlet 111 at the bottom of the housing 110, thereby allowing the light from the light source 120 to pass through the total internal reflection lens 130. After the light from the light source 111 is converged, the light is emitted from the light outlet 111. At the same time, the connection between the clamping part and the bottom of the lamp head 100 is the connection position 400. The bottom surface of the square groove 133 is inclined from the side near the connection position 400 to the side away from the connection position 400, moving away from the bottom surface of the square part. Therefore, the light emitted from the bottom surface of the square part, i.e., the light outlet 111, will change from the original symmetrical beam to an asymmetrical beam, thus shifting away from the screen of the electronic device. This avoids the glare caused by the beam hitting the screen and reflecting off it. Therefore, the screen lamp of this application can be clamped above the screen to provide illumination while avoiding the inconvenience of the beam hitting the screen and causing glare.

[0024] Specifically, the specific shape of the symmetrical beam emitted by the light source 120 in the prior art is as follows: Figure 6 As shown, in this embodiment, the specific shape of the asymmetric beam after exiting through the total internal reflection lens 130 with an inclined incident light surface is as follows: Figure 7 As shown.

[0025] It is understood that the housing 110 contains a first support portion 141 and a second support portion 142. The second support portion 142 and the first support portion 141 support the total internal reflection lens 130. The second support portion 142 is located away from the connection position 400 relative to the first support portion 141, and the height of the second support portion 142 is higher than that of the first support portion 141, so that the light beam from the light source 120, after passing through the total internal reflection lens 130, is emitted downwards and tilted away from the screen. For example, as... Figures 2 to 3 In this embodiment, the second support portion 142 for supporting the total internal reflection lens is higher than the first support portion 141, and the second support portion 142 is farther from the connection position 400 than the first support portion 141. This means that the total internal reflection lens 130 itself is also gradually moved away from the light outlet 111 from the side closer to the connection position 400 to the side farther away from the connection position 400, thereby further making the emitted light beam move away from the screen.

[0026] It is understood that the lamp holder 100 includes a first circuit board 150, the light source 120 is disposed on the side of the first circuit board 150 near the total internal reflection lens 130, and the bottom of the housing 110 is provided with a limiting portion 160 facing the first circuit board 150 to limit the depth of the light source 120 entering the square groove 133. For example, as Figures 3 to 4 In this embodiment, the circuit board is located on the side of the light source 120 away from the total internal reflection lens 130, and the bottom of the housing 110 is provided with a limiting part 160 to limit the depth of the light source 120 entering the square groove 133, thereby adjusting the uniformity of the emitted beam.

[0027] It is understood that the housing 110 also includes a first positioning part 171, and the first circuit board 150 correspondingly includes a second positioning part 172. The first positioning part 171 is used to cooperate with the second positioning part 172 to fix the first circuit board 150. For example, as Figures 3 to 4 In this embodiment, the first circuit board 150 is fixed by the cooperation between the first positioning part 171 inside the housing 110 and the second positioning part 172 on the first circuit board 150. Specifically, the first positioning part 171 is a positioning post, and the second positioning part 172 is a positioning groove corresponding to the first circuit board 150. The outer diameter of the top of the positioning post is smaller than the outer diameter of its lower part, while the diameter of the positioning groove is larger than the outer diameter of the top of the positioning post but smaller than the outer diameter of the lower part of the positioning post. Thus, the top of the positioning post can be inserted into the positioning groove and locked in place, thereby preventing the first circuit board 150 from shifting.

[0028] It is understood that the clamping part contains a second circuit board 210 and a battery 220, and the second circuit board 210 is electrically connected to the battery 220 and the first circuit board 150 respectively. For example, as Figures 2 to 4In this embodiment, by providing a battery 220 inside the clamping part, power can be supplied to the light source 120.

[0029] Understandably, the screen light also includes a sensing module 230, which is electrically connected to the second circuit board 210 and used to sense the human body to adjust the color temperature and / or brightness of the light source 120. For example, as Figures 2 to 4 In this embodiment, the color temperature and / or brightness of the light source 120 can be adjusted by sensing the human body through the sensing module 230 electrically connected to the second circuit board 210, which is convenient and intelligent. Specifically, a sensor can be set to sense the human body to adjust the color temperature of the light source 120, or a sensor can be set to sense the human body to adjust the brightness of the light source 120; or two sensors can be set at different locations to adjust the color temperature and brightness separately.

[0030] It is understood that the lamp holder 100 and the clamping part are respectively equipped with a Hall sensor 240 and a magnet. The Hall sensor 240 is electrically connected to the second circuit board 210 and is used to cooperate with the magnet to turn the light source 120 on and off. For example, as Figures 2 to 4 In this embodiment, by providing a Hall sensor 240 and a magnet in the lamp head 100 and the clamping part respectively, the light source 120 can be started when the lamp head 100 and the clamping part are opened, and the light source 120 can be turned off when the lamp head 100 and the clamping part are closed, which is convenient and quick.

[0031] It is understood that the clamping part includes a first clamping part 200 and a second clamping part 300. One end of the first clamping part 200 is rotatably connected to the lamp head 100, and the other end of the first clamping part 200 is rotatably connected to one end of the second clamping part 300. The second circuit board 210 and the battery 220 are disposed on the first clamping part 200. The end of the first clamping part 200 connected to the lamp head 100 has a protruding front clamping part 250. When the screen lamp is clamped on the screen, the front clamping part 250 abuts against the front side of the screen, and the other end of the second clamping part 300 abuts against the back side of the screen. For example, as Figures 1 to 4 In this embodiment, the clamping part includes a first clamping part 200 and a second clamping part 300 that are rotatably connected to each other. The end of the first clamping part 200 away from the second clamping part 300 is rotatably connected to the lamp head 100, and the end of the first clamping part 200 connected to the lamp head 100 is provided with a front clamping part 250. When clamped on a computer screen, the front clamping part 250 is located on the front side of the screen, and the end of the second clamping part 300 away from the first clamping part 200 abuts against the back of the computer screen, thereby realizing the clamping function on the computer.

[0032] It is understood that the first clamping part 200 is cuboid in shape, and includes a front plate 260 and a bottom plate 270. The front plate 260 is used to close with the lamp holder 100, and the bottom plate 270 is used to close with the second clamping part 300. One end of the front plate 260 extends and protrudes from the bottom plate 270 to form a front clamping part 250. For example, as Figures 2 to 5 In this embodiment, the first clamping part 200 is a cuboid and includes a front plate 260 and a bottom plate 270. When the lamp head 100 is closed with the first clamping part 200, it is closed with the front plate 260. When the second clamping part 300 is closed with the first clamping part 200, it is closed with the bottom plate 270. The portion of the front plate 260 that is longer than the bottom plate 270 forms the front clamping part 250. Thus, in the fully closed state, the screen lamp has a cuboid shape with a smooth surface and is easy to store.

[0033] It is understood that the housing 110 includes a base 112 and an upper housing 113. The base 112 is hinged to the first clamping part 200. The base 112 has an opening at the top and a light outlet 111 at the bottom. The upper housing 113 is cuboid with an opening at the bottom for fitting onto the base 112. For example, as Figures 1 to 4 In this embodiment, the housing 110 of the lamp head 100 includes a base 112 and an upper shell 113 sleeved on the base 112. The base 112 is hinged to the first clamping part 200. The top of the base 112 is open and the bottom is provided with a light outlet 111. The upper shell 113 is sleeved on the base 112, thereby achieving the function of sealing the light source 120 and the first circuit board 150.

[0034] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A screen light, characterized in that, include: The lamp head includes a housing, a light source and a total internal reflection lens located inside the housing. The bottom of the housing has a light outlet. The total internal reflection lens includes a conical portion and a cuboid portion located at the larger end of the conical portion. The cuboid portion is positioned facing the light outlet. A square groove is formed on the top of the conical portion away from the cuboid portion. The light source is located at the opening of the square groove and on the side of the total internal reflection lens away from the light outlet. A clamping part is connected to one side of the bottom of the lamp head and is used to clamp onto the upper side of the screen of the electronic device; wherein, The connection point between the lamp head and the clamping part is the connection position, and the bottom surface of the square groove slopes from the side close to the connection position to the side away from the connection position towards the direction away from the bottom surface of the cube part.

2. The screen light according to claim 1, characterized in that, The housing is provided with a first support and a second support. The second support and the first support are used to support the total internal reflection lens. The second support is located away from the connection position relative to the first support, and the height of the second support is higher than that of the first support, so that the light beam of the light source is tilted downward and away from the screen after passing through the total internal reflection lens.

3. The screen light according to claim 1, characterized in that, The lamp head includes a first circuit board, the light source is located on the side of the first circuit board near the total internal reflection lens, and the bottom of the housing is provided with a limiting part facing the first circuit board to limit the depth of the light source entering the square groove.

4. The screen light according to claim 3, characterized in that, The housing is further provided with a first positioning part, and the first circuit board is provided with a corresponding second positioning part. The first positioning part is used to cooperate with the second positioning part to fix the first circuit board.

5. The screen light according to claim 3, characterized in that, The clamping part is provided with a second circuit board and a battery inside, and the second circuit board is electrically connected to the battery and the first circuit board respectively.

6. The screen light according to claim 5, characterized in that, It also includes a sensing module, which is electrically connected to the second circuit board and is used to sense the human body to adjust the color temperature and / or brightness of the light source.

7. The screen light according to claim 5, characterized in that, The lamp head and the clamping part are respectively provided with a Hall sensor and a magnet. The Hall sensor is electrically connected to the second circuit board and is used to cooperate with the magnet to turn the light source on and off.

8. The screen light according to any one of claims 5-7, characterized in that, The clamping part includes a first clamping part and a second clamping part. One end of the first clamping part is rotatably connected to the lamp head, and the other end of the first clamping part is rotatably connected to one end of the second clamping part. The second circuit board and the battery are disposed on the first clamping part. The end of the first clamping part connected to the lamp head is provided with a protruding front clamping part. When the screen lamp is clamped on the screen, the front clamping part abuts against the front side of the screen, and the other end of the second clamping part abuts against the back side of the screen.

9. The screen light according to claim 8, characterized in that, The first clamping part is cuboid in shape and includes a front plate and a bottom plate. The front plate is used to close with the lamp head, and the bottom plate is used to close with the second clamping part. One end of the front plate extends and protrudes from the bottom plate to form the front clamping part.

10. The screen light according to claim 8, characterized in that, The housing includes a base and an upper shell. The base is hinged to the first clamping part. The base has an opening at the top and the light outlet at the bottom. The upper shell is cuboid with an opening at the bottom for fitting onto the base.

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