CN107559655B - Desk lamp top light guide plate and desk lamp - Google Patents
Desk lamp top light guide plate and desk lamp Download PDFInfo
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- CN107559655B CN107559655B CN201711029396.2A CN201711029396A CN107559655B CN 107559655 B CN107559655 B CN 107559655B CN 201711029396 A CN201711029396 A CN 201711029396A CN 107559655 B CN107559655 B CN 107559655B
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- 239000011324 bead Substances 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000004512 die casting Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 238000005286 illumination Methods 0.000 description 8
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- 210000003128 head Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a desk lamp top light guide plate and a desk lamp, and relates to the technical field of lighting tools. A light guide plate at the top of the desk lamp, which is arranged corresponding to a lamp cap component arranged at the top of the desk lamp; the light guide plate adopts a cambered surface structure, and a through hole structure is arranged at the top of the light guide plate; the lamp cap assembly comprises a fixed plate and lamp beads arranged on the outer edge of the fixed plate; the through hole structure is sleeved on the outer side of the fixed plate, and the inner side wall of the through hole structure is arranged opposite to the lamp beads; the included angle between the tangential plane of the light incidence part of the light guide plate and the top surface of the light guide plate is not more than 10 degrees; the included angle between the tangential plane of the light-emitting part of the light guide plate and the top surface of the light guide plate is 25-50 degrees; the edge of the light guide plate is provided with an oblique angle structure. A desk lamp comprises the desk lamp top light guide plate. The invention aims to provide a table lamp top light guide plate and a table lamp, so as to solve the problem that eyes are damaged due to the fact that the table lamp in the prior art is easy to dazzle when the light is strong.
Description
Technical Field
The invention relates to the technical field of lighting tools, in particular to a desk lamp top light guide plate and a desk lamp.
Background
The desk lamp is a lighting tool used for concentrating light in a small area, and is widely applied to daily study, work and experiments of people.
Under normal conditions, the desk lamp lighting system consists of a light source and a lampshade, is used for people to learn, read and the like, and has the main problems that the brightness is insufficient or the light irradiation range is limited, if the brightness and the light irradiation range are improved, the light rays can be dazzled in the past, the eyes are damaged, and discomfort is generated for a long time.
Based on the above problems, it is important to provide a desk lamp which can ensure brightness and is not dazzling.
Disclosure of Invention
The invention aims to provide a top light guide plate of a desk lamp and the desk lamp, so as to solve the problem that eyes are damaged due to the fact that the desk lamp in the prior art is easy to dazzle.
In order to solve the technical problems, the invention adopts the following technical means:
the invention provides a top light guide plate of a desk lamp, which is arranged corresponding to a lamp cap assembly arranged at the top of the desk lamp;
the light guide plate adopts a cambered surface structure, and a through hole structure is formed in the top of the light guide plate;
the lamp cap assembly comprises a fixed plate and lamp beads arranged on the outer edge of the fixed plate; the through hole structure is sleeved on the outer side of the fixed plate, and the inner side wall of the through hole structure is arranged opposite to the lamp beads;
the included angle between the tangential plane of the light inlet of the light guide plate and the top surface of the light guide plate is not more than 10 degrees;
the included angle between the tangential plane of the light-emitting part of the light guide plate and the top surface of the light guide plate is 25-50 degrees;
the edge of the light guide plate is provided with an oblique angle structure.
As a further technical scheme, the light incident surface of the light guide plate is provided with a frosted layer.
As a further technical scheme, the fixing plate adopts an aluminum die casting, and a plurality of groove structures for heat dissipation are uniformly distributed on the fixing plate.
As a further technical scheme, the top end of the fixed plate is provided with a touch control plate;
a touch panel is arranged above the touch control panel.
As a further technical scheme, the touch panel adopts a spherical structure, and an embedded part and a connecting part which are used for being matched with the fixed plate are arranged on the inner side of the touch panel.
As a further technical scheme, an upper base for supporting the light guide plate is arranged below the light guide plate;
the upper base adopts a transparent horn-shaped structure.
As a further technical scheme, an inner reflecting piece is arranged in the upper base, and the top end of the inner reflecting piece is buckled with the bottom end of the light guide plate.
As a further technical scheme, the inner side of the inner reflecting piece is provided with a connecting rod, and the top end of the connecting rod is in threaded connection with the fixing plate.
As a further technical scheme, a lower base is arranged below the upper base, and the upper base and the lower base are mutually spliced;
the bottom end of the inner reflecting piece is abutted with the lower base;
the bottom of connecting rod with lower base threaded connection.
The table lamp provided by the invention comprises the table lamp top light guide plate.
Compared with the prior art, the top light guide plate of the desk lamp and the desk lamp provided by the invention have the technical advantages that:
the invention provides a top light guide plate of a desk lamp, which is arranged at the top of the desk lamp and corresponds to a lamp cap assembly; wherein, the light guide plate adopts a cambered surface structure, and a through hole structure is arranged at the top of the light guide plate; the lamp cap assembly comprises a fixed plate and lamp beads, wherein the lamp beads are uniformly arranged at the outer edge of the fixed plate, and the lamp beads are oppositely arranged with the inner side wall of the through hole structure; the included angle between the tangential plane of the light incidence part of the light guide plate and the top surface of the light guide plate is not more than 10 degrees; the included angle between the tangential plane of the light-emitting part of the light guide plate and the top surface of the light guide plate is 25-50 degrees; the edge of the light guide plate is processed by oblique angle.
The top light guide plate of the desk lamp provided by the invention can control the light emitting direction through the curvature change of the light guide plate, so that more comfortable light intensity distribution is realized, light rays are not dazzled any more, and visual comfort is improved, and the specific principle is as follows: after the desk lamp is started, a circle of lamp beads at the outer edge of the fixing plate emit light, most of the light rays enter the light inlet surface of the light guide plate and are transmitted forwards in the light guide plate under the condition of total reflection, and finally the light rays exit from the light outlet surface, so that the lighting effect is achieved; further, the light guide plate is designed into a cambered surface structure, and the included angle between the tangential plane of the light entering position and the top surface of the light guide plate is not more than 10 degrees, so that the condition of total reflection of most of light can be met near the light entering position; in addition, the included angle between the tangent plane of the light-emitting part of the light guide plate and the top surface of the light guide plate is designed to be 25-50 degrees, so that the propagation direction of light rays emitted from the light-emitting part is controlled, and the main illumination lighting angle of the whole lamp is ensured to be suitable for the light distribution shape (the main illumination lighting angle of the whole lamp is too large to generate direct dazzle light, and the irradiation range is small if the angle is too small, so that the actual use of the desk lamp cannot be met); the edges of the light guide plate are processed by adopting oblique angles to form an oblique angle structure, and the oblique angle structure can reduce luminous flux at the edges, reduce the brightness of the edges and make the eyes more comfortable.
The top light guide plate of the desk lamp provided by the invention adopts the light guide technology, the light emitting direction is controlled through the curvature change of the light guide plate, the more comfortable light intensity distribution is realized, the illumination of the working surface is uniform, the luminous flux of light rays is proper, the light rays of the whole desk lamp are not dazzling, the desk lamp looks comfortable, and the effect of protecting eyes is achieved.
The desk lamp provided by the invention comprises the desk lamp top light guide plate, so that the technical advantages and effects achieved by the desk lamp comprise those achieved by the desk lamp top light guide plate, and the technical advantages and effects are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a desk lamp according to the present invention;
fig. 2 is a first schematic view of a light guide plate in the desk lamp shown in fig. 1;
fig. 3 is a second schematic view of the light guide plate in the desk lamp shown in fig. 1;
fig. 4 is a schematic view of the light propagation principle inside the light guide plate in the desk lamp shown in fig. 1;
FIG. 5 is a schematic view of a mounting plate in the desk lamp shown in FIG. 1;
fig. 6 is a schematic view of a touch panel in the desk lamp shown in fig. 1.
Icon: 100-a light guide plate; 110-via structures; 120-sanding layer; 200-a lamp head assembly; 210-a fixed plate; 211-a groove structure; 220-lamp beads; 300-touch control panel; 400-a touch panel; 410-an embedding part; 420-connection; 500-upper base; 600-internal reflectors; 700-connecting rod; 800-a lower base.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
The specific structure is shown in fig. 1-6. Fig. 1 is a schematic diagram of a desk lamp according to the present invention; fig. 2 is a first schematic view of a light guide plate in the desk lamp shown in fig. 1; fig. 3 is a second schematic view of the light guide plate in the desk lamp shown in fig. 1; fig. 4 is a schematic view of the light propagation principle inside the light guide plate in the desk lamp shown in fig. 1; FIG. 5 is a schematic view of a mounting plate in the desk lamp shown in FIG. 1; fig. 6 is a schematic view of a touch panel in the desk lamp shown in fig. 1.
The light guide plate 100 is arranged corresponding to the lamp cap assembly 200 arranged at the top of the desk lamp; the light guide plate 100 adopts a cambered surface structure, and a through hole structure 110 is arranged at the top of the light guide plate 100; the lamp head assembly 200 includes a fixing plate 210 and lamp beads 220 disposed on an outer edge of the fixing plate 210; the through hole structure 110 is sleeved on the outer side of the fixing plate 210, and the inner side wall of the through hole structure 110 is opposite to the lamp beads 220; the included angle between the tangential plane of the light-in position of the light guide plate 100 and the top surface of the light guide plate 100 is not more than 10 degrees; the included angle between the tangential plane of the light-emitting part of the light guide plate 100 and the top surface of the light guide plate 100 is 25-50 degrees; the edge of the light guide plate 100 is provided with a bevel structure.
The desk lamp top light guide plate that this embodiment provided can realize comparatively comfortable light intensity distribution through the curvature change control play light direction of light guide plate 100, makes light no longer dazzle, improves the visual comfort, and its concrete principle is: after the desk lamp is started, a circle of lamp beads 220 at the outer edge of the fixing plate 210 emit light, most of the light rays enter the light incident surface of the light guide plate 100 and then propagate forwards after meeting the total reflection condition in the light guide plate 100, and finally exit from the light emergent surface, so that the lighting effect is achieved; further, the light guide plate 100 is designed into a cambered surface structure, and the included angle between the tangential plane of the light entering position and the top surface of the light guide plate 100 is not more than 10 degrees, so that the condition of total reflection of most of light can be met near the light entering position; in addition, the included angle between the tangential plane of the light-emitting part of the light guide plate 100 and the top surface of the light guide plate 100 is designed to be 25-50 degrees, so as to control the propagation direction of the light emitted from the light-emitting part, and ensure that the main illumination lighting angle of the whole lamp is suitable for the light distribution shape (the main illumination lighting angle of the whole lamp is too large to generate direct dazzling light, and the irradiation range is small if the angle is too small, so that the actual use of the desk lamp cannot be satisfied); the edges of the light guide plate 100 are processed by beveling to form a beveling structure, and the beveling structure can reduce luminous flux at the edges, reduce brightness of the edges, and make the eyes more comfortable.
It should be noted that, the light guide plate 100 in this embodiment adopts a transparent optical grade PC or PMMA material; in order to meet the requirements of appearance and process, the inner and outer surfaces of the light guide plate 100 are both arc-shaped surfaces, and are designed to have equal wall thickness, and in order to meet the requirements of optical design, the arc-shaped surfaces need to meet the following conditions, α < 10 ° or=10°, including 2 °, 4 °, 6 °, 8 °, 10 °,25 ° < β < 50 °, including 26 °, 30 °, 35 °, 40 °, 45 °, 49 °, and may further include two end points, 25 ° and 50 °.
In addition, the thickness of the light guide plate 100 is close to the width of the light emitting surface of the lamp bead 220 or slightly larger than the width of the light emitting surface of the lamp bead 220, so as to ensure that most of the light emitted by the lamp bead 220 can enter the light guide plate 100, and meanwhile, the molding condition of the mold is considered, and in general, the thickness of the light guide plate 100 is about 4 mm.
The light guide technology is adopted by the top light guide plate of the desk lamp, the light emitting direction is controlled through the curvature change of the light guide plate 100, the more comfortable light intensity distribution is realized, the illumination of the working surface is uniform, the luminous flux of light rays is proper, the whole desk lamp is free from dazzling, the whole desk lamp is comfortable to look, and the effect of protecting eyes is achieved.
In an alternative technical solution of this embodiment, the light incident surface of the light guide plate 100 is provided with the frosted layer 120, and the inside wall of the through hole structure 110 is provided with the frosted layer 120, and the frosted layer 120 at the inside wall of the through hole structure 110 is arranged opposite to the lamp beads 220, so that the light generated by the lamp beads 220 can be scattered, and the light entering the light guide plate 100 can be more uniform.
In an alternative solution of this embodiment, the fixing plate 210 is an aluminum die casting, and a plurality of groove structures 211 for heat dissipation are uniformly arranged on the fixing plate 210.
Specifically, the lamp cap assembly 200 in the present embodiment includes a fixing plate 210, the fixing plate 210 is made of aluminum and has a disc structure formed by a die casting process, and a plurality of uniformly distributed groove structures 211 are disposed on the top end of the fixing plate 210 at positions close to the edges, and the groove structures 211 mainly play a role in heat dissipation; the lamp beads 220 are uniformly arranged at the outer edge of the fixing plate 210, when the light guide plate 100 is mounted on the lamp cap assembly 200, the through holes of the light guide plate 100 are actually sleeved outside the fixing plate 210 and are fixed through the supporting structure below, so that light can be emitted into the light guide plate 100 when the lamp beads 220 are lightened, and the light can be conveniently transmitted.
It should be noted that, when the lamp bead 220 is on, a large amount of heat is dissipated, because the fixing plate 210 is made of aluminum, the generated heat can be quickly transferred to the fixing plate 210, and because the top end of the fixing plate 210 is provided with a plurality of groove structures 211, the contact area with air can be increased, and the heat can be dissipated conveniently, so that the lamp bead 220 and the fixing plate 210 are radiated.
In an alternative solution of this embodiment, the top end of the fixing plate 210 is provided with a touch control plate 300; a touch panel 400 is disposed above the touch control panel 300.
In an alternative solution of this embodiment, the touch panel 400 adopts a spherical structure, and an embedded portion 410 and a connecting portion 420 for being mounted in cooperation with the fixing plate 210 are provided on the inner side of the touch panel 400.
Specifically, the touch panel 400 in this embodiment adopts a spherical structure, and an embedded portion 410 and a connection portion 420 are disposed on the inner side of the spherical structure, and the specific mounting process of the touch panel 400 is as follows: firstly, the through hole structure 110 of the light guide plate 100 is sleeved outside the fixed plate 210, then the touch panel 400 is buckled at the top of the light guide plate 100, namely the embedded part 410 is inserted into the inner side of the fixed plate 210, and the connecting part 420 is connected with the connecting hole on the fixed plate 210 through a screw, so that the touch panel 400 can be fixed at the top of the light guide plate 100.
Note that the touch panel 400 has three functions, one of which functions as a touch switch; secondly, the function of the fixed light guide plate 100 is pressed; third, the light emitted from the lamp bead 220 is blocked, and the light leakage is prevented.
When the touch panel 400 is used as a touch switch and is matched with the touch control panel 300, when a user touches the touch panel 400 by hand, the lamp beads 220 can be turned on by the touch control panel 300, so that the desk lamp is turned on, and when the user touches the touch panel again, the desk lamp is turned off. It should be noted that, the principle of how the touch switch controls the light of the light bulb 220 is substantially similar to that of the prior art, and will not be described in detail herein.
In an alternative solution of this embodiment, an upper base 500 for supporting the light guide plate 100 is disposed below the light guide plate 100; the upper base 500 is of a transparent horn-like structure.
In an alternative solution of this embodiment, an inner reflecting member 600 is disposed in the upper base 500, and the top end of the inner reflecting member 600 is fastened to the bottom end of the light guide plate 100.
In an alternative solution of this embodiment, the inner side of the inner reflector 600 is provided with a connecting rod 700, and the top end of the connecting rod 700 is in threaded connection with the fixing plate 210.
In an alternative technical solution of the embodiment, a lower base 800 is disposed below an upper base 500, and the upper base 500 and the lower base 800 are mutually inserted; the bottom end of the inner reflector 600 is abutted with the lower base 800; the bottom end of the connection rod 700 is screw-coupled with the lower base 800.
In this embodiment, the supporting and mounting functions of the lamp cap assembly 200 are realized by the upper base 500, the lower base 800, the inner reflecting member 600 and the connecting rod 700, specifically, the upper base 500 is in a horn shape, the top end of the upper base is abutted against the inner side wall of the light guide plate 100, and the supporting functions of the light guide plate 100 can be realized by the upper base 500; in addition, the top end of the inner reflecting member 600 also has a supporting function on the inner side wall of the light guide plate 100, namely, an annular groove structure is arranged at the top end of the inner reflecting member 600, and a convex structure is arranged at the bottom end of the light guide plate 100, so that the inner reflecting member 600 and the light guide plate 100 are mutually buckled and connected through the mutual matching of the annular groove structure and the convex structure; in addition, a plurality of lugs are provided on the inner side of the top end of the inner reflector 600, and the bottom end of the fixing plate 210 can be supported by the lugs.
It should be noted that the upper base 500 is a transparent structure, and the main purpose of the upper base 500 is that a lamp capable of lighting the neck of the desk lamp is provided at the bottom end of the upper base 500, when the lamp is lighted, light can be irradiated into the upper base 500, and then the light is reflected outwards along the radial direction of the upper base 500 by the inner reflecting member 600, so as to be used together with the lamp head assembly 200 at the top of the desk lamp, thereby improving the illumination intensity and the illumination range.
Further, the upper base 500 and the lower base 800 are connected together in an inserting manner, the connecting rod 700 is arranged on the inner side of the inner reflecting member 600, the top end of the connecting rod 700 is connected with the fixing plate 210 in a threaded manner, the bottom end of the connecting rod 700 is connected with the supporting structure in the base in a threaded manner, therefore, when both ends of the connecting rod 700 are in a screwing state, the fixed connection between the upper base 500 and the lower base 800 can be realized, meanwhile, the connecting rod 700 also plays a supporting role on the lamp cap assembly 200, and the connecting rod 700 adopts a hollow structure so as to facilitate wiring in the hollow structure.
It should be noted that, the electrical components in the whole desk lamp are all connected with the power board in the lower base 800, and power supply is realized through the power board.
The desk lamp provided by the embodiment comprises the desk lamp top light guide plate, so that the technical advantages and effects achieved by the desk lamp comprise the technical advantages and effects achieved by the desk lamp top light guide plate, and the technical advantages and effects are not repeated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. The top light guide plate of the desk lamp is characterized in that the light guide plate is arranged corresponding to a lamp cap assembly arranged at the top of the desk lamp;
the light guide plate adopts a cambered surface structure, and a through hole structure is formed at the top of the light guide plate;
the lamp cap assembly comprises a fixed plate and lamp beads arranged on the outer edge of the fixed plate; the through hole structure is sleeved on the outer side of the fixed plate, and the inner side wall of the through hole structure is arranged opposite to the lamp beads;
the included angle between the tangential plane of the light inlet of the light guide plate and the top surface of the light guide plate is not more than 10 degrees;
the included angle between the tangential plane of the light-emitting part of the light guide plate and the top surface of the light guide plate is 25-50 degrees;
the edge of the light guide plate is provided with an oblique angle structure;
a sand grinding layer is arranged at the light incident surface of the light guide plate;
an upper base for supporting the light guide plate is arranged below the light guide plate;
the upper base is of a transparent horn-shaped structure;
an inner reflecting piece is arranged in the upper base, and the top end of the inner reflecting piece is buckled with the bottom end of the light guide plate;
the inner side of the inner reflecting piece is provided with a connecting rod, and the top end of the connecting rod is in threaded connection with the fixing plate.
2. The desk lamp top light guide plate as claimed in claim 1, wherein the fixing plate is an aluminum die casting, and a plurality of groove structures for heat dissipation are uniformly distributed on the fixing plate.
3. The desk lamp top light guide plate as recited in claim 2, wherein a touch control board is provided at a top end of the fixed plate;
a touch panel is arranged above the touch control panel.
4. A desk lamp top light guide plate as recited in claim 3, wherein the touch panel has a spherical structure, and an embedded part and a connecting part for fitting with the fixing plate are provided on an inner side of the touch panel.
5. The desk lamp top light guide plate as recited in claim 1, wherein a lower base is disposed below the upper base, and the upper base and the lower base are mutually inserted;
the bottom end of the inner reflecting piece is abutted with the lower base;
the bottom of connecting rod with lower base threaded connection.
6. A desk lamp comprising a desk lamp top lightguide as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029396.2A CN107559655B (en) | 2017-10-26 | 2017-10-26 | Desk lamp top light guide plate and desk lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711029396.2A CN107559655B (en) | 2017-10-26 | 2017-10-26 | Desk lamp top light guide plate and desk lamp |
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| CN107559655A CN107559655A (en) | 2018-01-09 |
| CN107559655B true CN107559655B (en) | 2023-11-24 |
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| CN107559655A (en) | 2018-01-09 |
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